Search Results — 2000 specimen records retrieved (1627 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SD41424  Abronia maritima Edith A. Purer 1932-8-31 4880 Orange Sand dunes along Route 101. Comment
  RSA461007  Abronia umbellata N. C. Cooper 1944-6-3 1346 Orange Balboa Beach, On beach at sea level. 0 Comment
  SEINET893157  Abronia umbellata Charles T. Mason Jr. 1943-1 108 Orange Along Coast Highway 101, one miles southeast of Huntington Beach. Comment
  SEINET893740  Abronia villosa P. C. Everett 1935-1 7260 Orange Lower Sonoran. 8/10 miles east of Atwood, south of Railroad tracks. 107 Comment
  POM201771  Abronia villosa var. aurita L. M. Booth 1932-7-30 1341 Orange Santa Ana River, 2 miles from ocean Comment
  RSA700927  Abronia villosa var. aurita Keith E. Hoffmaster 1933-4-5 s.n. Orange Near Newport Comment
Read comments
Aug 27 2011
  CDA23153  Acacia cyclops Mark A. Elvin, D. G. Kelch 2006-12-9 5291 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  RSA0028022  Acacia longifolia Fred M. Roberts 2012-9-6 7695 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  IRVC22668  Acer macrophyllum Fred M. Roberts 1985-5-9 1729 Orange Santa Ana Mountains: Upper McVicker Canyon, 1.8km NE Los Pinos Peak. Peninsular Ranges 1113 Comment
  IRVC9265  Acer macrophyllum B. Gittins 1963-4-18 171 c Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  RSA797915  Acer macrophyllum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49825 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA0013961  Achillea millefolium Fred M. Roberts 2008-5-14 6969 Orange Lomas de Santiago: Loma Ridge, upper Bee Flat Cyn. below Loma Ridge Rd., 1.3 km N Bee Peak and 5.4 km NW Bolero Lookout, Irvine Ranch Conservancy. 377 Comment
  UCD128336  Achillea millefolium Steve Mason; Pam Rector 1993-4-16 4 Orange Laguna Niguel, Sea View Park Trail, about 25 yards up trail on left side, on border between disturbed terrain and coastal sage scrub. Near housing development overlooking canyon and coastline. 182 Comment
  CAS-BOT-BC211912  Achnatherum coronatum John Thomas Howell; Alice Eastwood 1937-4-24 3926 Orange 2 miles east of San Juan Hot Springs Comment
  RSA542360  Achnatherum coronatum Fred M. Roberts 1988-4-8 3897 Orange Lomas de Santiago: Loma Ridge, Central Linestone Canyon, 4.1 kilometers NNW Bolero Lookout. 323 Comment
  UCSB18873  Acmispon glaber Swenson, Ronald 1963-4-12 Orange South side of Back Newport Bay, about 250 yards south of salt works, Newport Comment
  SBBG120830  Acmispon heermannii var. heermannii A. C. Sanders, F. M. Roberts, M. Balk 2006-7-20 33005 Orange San Juan Cyn from Lower San Juan Picnic Area to ca. 1 mi downstream, parallel to Hwy 74 366 Comment
  OBI41040  Acmispon junceus var. junceus Melissa Thorme 1983-11-23 16 Orange Ad to S most housing tract in Corona Del Mar Comment
  UCD104462  Acmispon strigosus R. Tofsrud 1951-4-25 s.n. Orange Near Orange and L.A. County line on Hwy. 74. Comment
  UCSB48115  Acmispon strigosus Roberts, Jr., Fred 1981-4-12 Orange Santa Ana Mountains; San Juan Canyon, Hwy. 74, 1.3 km. by road E San Juan Guard Station; 0.9 km. SE Juan Rancho Survey Mark 295 Comment
  RSA788092  Acourtia microcephala R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49626 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  UCR281525  Acourtia microcephala Mitch Provance 2017-6-9 617- 101 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  RSA542471  Acourtia microcephala Fred M. Roberts, K. Keane 1988-5-25 4584 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker. 91 Comment
  UCD128506  Acroptilon repens Ethelbert Johnson 1922-8-8 s.n. Orange Greenville. Comment
Read comments
Apr 10 2016
  RSA12898  Adenostoma fasciculatum var. fasciculatum E. R. Johnson, Percy C. Everett 1935-1-14 6288 Orange Open firebreak on slopes of Sierra Peak, along road to Claymine Canyon 610 Comment
  UCR240175  Adiantum capillus-veneris R. E. Riefner Jr. 2012-2-23 12- 43 Orange South Coast, city of Laguna Beach, Treasure Island Beach, vicinity of Wesley Drive and South Coast Hwy 1 Comment
  RSA124721  Adiantum jordanii E. K. Balls, Percy C. Everett 1957-11-25 22844 Orange Trabuco Canyon, 1.7 mi W of entrance to Holy Jim Canyon. 671 Comment
  IRVC21803  Adiantum jordanii B. L. Parry, F. M. Roberts 1926-3-13 162 Orange Santa Ana Canyon. M.E. Jones POM 122866. San Joaquin Hills: Moro Canyon, Crystal Cove State Park, 2.9km SE Signal Peak; 3.5km NE El Morro School, Yorba Linda 150 Comment
Read comments
Oct 25 2017
  UCR188945  Aesculus californica Robert DeRuff 2004-1 549 Orange Newport Beach, Upper Newport Bay, Eastbluff North, below and north of intersection of Back Bay Drive and Eastbluff Drive 7 Comment
  UC592771  Agnorhiza ovata P. C. Everett 1935-6-18 Orange Los Pinos Potrero, Main Divide Motorway Santa Ana Mts. 914 Comment
  RSA0053702  Agrostis avenacea Chris E. True 2013-5-2 s.n. Orange Bommer Canyon, NW of Aliso Viejo. 104 Comment
  RSA754073  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-7-16 35851 Orange Lomas de Santiago, Limestone Canyon 325 Comment
  SEINET14046461  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-6-17 35490 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 1 km E of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between Hwy 241 and 261 357 Comment
  UCR193382  Agrostis pallens A. C. Sanders, Mitch Provance 2008-5-20 35389 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
  CAS-BOT-BC138654  Agrostis stolonifera Carl B. Wolf 1932-6-13 3722 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  UC729937  Agrostis stolonifera Carl B. Wolf 1932-6-13 Orange Malvern and Nicholas Avenues Fullerton 53 Comment
  UC455141  Alisma plantago-aquatica I. J. Condit 1908-7-21 Orange Los Alamitos Comment
Read comments
Nov 20 2010
  RSA367034  Allium Marion Verhusen 1946-05 s.n. Orange Santa Ana Canyon. Comment
  UCR132990  Allium haematochiton Adrian Wolf 2000-5-4 466 Orange Santa Ana Mtns., North Ranch Policy Plan Area, ridgeline between upper Gypsum and Fremont Canyon, Main Divide Road, overlooking upper Fremont Cyn. 726 Comment
  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
  CAS-BOT-BC170688  Alnus rhombifolia John Thomas Howell 1927-7-21 2810 Orange Santa Ana River bottom, Santa Ana Canon [canyon] 152 Comment
  RSA452789  Alnus rhombifolia Marcus E. Jones 1930-1-26 26226 Orange Wildwood Camp, Santa Ana River. Comment
Read comments
Nov 18 2013
  RSA725522  Alnus rhombifolia Fred M. Roberts, Robert L. Allen 2007-9-28 6602 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  SD127314  Alnus rhombifolia Reid Moran, Jack Reveal and Bob Smart 1975-7-18 22597 Orange Near Yaeger Mine, bottom of upper Trabuco Canyon, Santa Ana Mts. 725 Comment
  UC1543134  Alnus rhombifolia Donald G. Nelson 1938-12-26 Orange in creek bottom near Myers Ranch; Santa Ana Mountains, Black Star Canyon, Black Star Creek Comment
  UCR234157  Alnus rhombifolia Dick Newell, Judy Booth 2012-3-25 233 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.5 miles above Maple Springs entrance 615 Comment
  RSA184149  Amaranthus blitoides I. L. Wiggins 1966-5-25 20665 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton. 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
  RSA592066  Amaranthus deflexus R. E. Riefner 1995-7-27 95 -318 Orange S bluff area of San Clemente Beach. Comment
  JEPS54308  Amaranthus hybridus Lawrence M. Booth 1932-7-21 1295 Orange Anaheim Creek Comment
  RSA184187  Amaranthus hybridus I. L. Wiggins 1965-11-7 20357 Orange Vacant lot between State College Blvd. and Troy High School Campus, Fullerton. Comment
  RSA404566  Amaranthus retroflexus Albert J. Perkins 1912-10-15 s.n. Orange Peatlands near head Newport Bay. Comment
  UCR210314  Ambrosia acanthicarpa A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37199 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCR239933  Ambrosia acanthicarpa O. F. Clarke 2004-5-29 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  CAS-BOT-BC13769  Ambrosia chamissonis David D. Keck 1933-9-8 2522 Orange Sunset Beach Comment
  RSA640713  Ambrosia chamissonis L. C. Wheeler 1931-8-12 s.n. Orange Balboa. Comment
  RSA643441  Ambrosia chamissonis R. D. Goeden, D. W. Ricker 1970-4-29 s.n. Orange Pacific Coast: Newport Beach, NW edge of town between Seashore Dr., Neptune Ave. 56th and 58th Streets. 2 Comment
  SD39993  Ambrosia chamissonis Edith A. Purer 1932-8-31 4879 Orange Open areas of sand dunes along Route 101 Comment
  UC450974  Ambrosia chamissonis F. A. MacF. 1931-3-1 87 E Orange Laguna Beach Comment
  UC536897  Ambrosia chamissonis Lawrence M. Booth 1932-5-25 1110 Orange Balboa Island Comment
  CAS-BOT-BC45063  Ambrosia psilostachya Ira L. Wiggins 1965-10-18 20272 Orange Vacant lot, NE corner of Chapman Ave. and Victor Dr., Fullerton Comment
  JEPS41038  Ambrosia psilostachya J. P. Harrington August, 1932 Orange San Juan Capistrano Comment
  RSA703089  Ambrosia psilostachya Fred M. Roberts, Arthur Davenport 2003-9-11 6005 Orange Rancho Mission Viejo: Donna O' Neill Land Conservancy. Cristianitos Cyn., 0.79 km N Sycamore Gate 0.23 km w of Crisianitos Road. 126 Comment
  SD263545  Ambrosia psilostachya Jim Riley 2013-10-15 119 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  POM47597  Ambrosia psilostachya I. M. Johnston s.n. Orange 3 mi. N of Balboa Comment
  RSA0031761  Ambrosia psilostachya R. F. Thorne 1977-11-21 50813 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  CDA19010  Ammannia robusta B. Tidwell 2000-8-3 PDR 1223096 Orange Southern California; Douglass Rd., Anaheim. 0 Comment
  RSA485153  Amorpha californica var. californica E. R. Johnson 1929-10-1 636 Orange Rancho Santa Ana. Comment
  HSC3522  Amsinckia intermedia J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  RSA499932  Amsinckia intermedia E. A. Purer, Freda Detmers 1932-3-23 15572 Orange near Huntington Beach. Roadside of Coast Highway Comment
  UC1178237  Amsinckia intermedia Francia Chisaki 1957-4-3 927 Orange 6 mi s Irvine (just s of El Toro near top of hill on Hwy 101) Comment
  UC1292600  Amsinckia intermedia C. L. Hitchcock, C. V. Muhlick 1964-3-17 23064 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  UCR230842  Amsinckia intermedia Dick Newell, Don Millar 2011-3-24 093 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
  RSA0089445  Amsinckia intermedia C. B. Wolf 1931-3-6 1864 Orange East side of Orange Co. Park. 152 Comment
  RSA0089447  Amsinckia intermedia Ken Greby 1985-4-18 17 Orange Alongside Laguna Canyon Rd. approx. 1.5 km. NE from El Toro Rd. 46 Comment
  RSA533911  Amsinckia intermedia Tim Ross, Orlando Mistretta, Mike Hammitt 1991-5-18 5173 Orange San Clemente Island. 1100 feet SSW of Twin Dams, 1450 feet NNW of Bolder marker 491 Comment
  SEINET12280463  Amsinckia intermedia Unknown 1933-1 8203 Orange back of Laguna Beach Comment
  IRVC22198  Amsinckia menziesii var. intermedia Fred M. Roberts 1985-4-8 1636 Orange San Joaquin Hills, Turtle Rock area, hill 1.1km SE French Hill, Irvine 196 Comment
  IRVC245  Amsinckia menziesii var. intermedia D. Orr 1965-3-27 Orange Trabuco Rd. 3mi E El Toro Marine Base. El Toro Comment
  POM201809  Anagallis arvensis L. M. Booth 1932-6-28 s.n. Orange Bolsas Marsh. Comment
  RSA602640  Anagallis arvensis B. Pitzer 1996-4-30 2794 Orange San Joaquin Hills Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy). 15 Comment
  RSA750120  Anemopsis californica A. C. Sanders, Fred M. Roberts 2008-8-7 35986 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 185 Comment
  UC672439  Anemopsis californica Herbert L. Mason 1926-4-25 2902 Orange near Laguna Comment
  RSA309584  Anemopsis californica J. R. Shevock 1974-4-28 3428 Orange Along Pacific Coast Highway 0.3 mile west of Brookhurst toward Beach Blvd. 3 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
  CAS-BOT-BC84724  Anthemis cotula Carl B. Wolf 1932-7-7 s.n. Orange Bryant Ranch, Bryant Ave. At pump house Comment
  RSA734807  Anthriscus caucalis A. C. Sanders, Fred M. Roberts 2008-5-6 35255 Orange Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  RSA594820  Antirrhinum coulterianum Fred M. Roberts, Sandra Leatherman, Brian Leatherman 1994-4-24 4914 Orange Santa Ana Mountains: San Juan Canyon, CA route 74, Lower San Juan Picnic Ground. 354 Comment
  RSA681268  Antirrhinum coulterianum Scott D. White, Michael Honer 2003-5-29 9435 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. Steep, gen. south-facing slopes above trib. to Trampas Canyon, ca. 0.6 air mi. S of Ortega hwy and ca. ca. 0.5 mi west of Trampas Cyn. 122 Comment
  UCR193365  Antirrhinum coulterianum A. C. Sanders, Mitch Provance 2008-5-20 35426 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA698987  Antirrhinum majus Snow 1929-03 s.n. Orange Santa Ana. Comment
  RSA737889  Antirrhinum multiflorum R. E. Riefner 2007-6-29 07 -286 Orange Irvine Ranch Reseve, N Irvine Ranch, E Fork cliffs at upper Fremont Canyon along Black Star SCE road. 579 Comment
  SBBG6704  Antirrhinum nuttallianum J. M. Tucker 1941-5-30 260 Orange Ortega Hwy (St Hwy 74), 2 to 3 mi E of W boundary of Cleveland Nat Forest Comment
  JEPS4284  Antirrhinum nuttallianum subsp. nuttallianum John Thomas Howell 1927-6-26 2595 Orange Claymine Canyon; Santa Ana Mts. 304 Comment
  JEPS4288  Antirrhinum nuttallianum subsp. nuttallianum Lawrence M. Booth 1932-7-7 1260 Orange s of Huntington Beach Comment
  UCR224161  Antirrhinum nuttallianum subsp. subsessile Fred M. Roberts 2008-3-19 6784 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
  UCR177863  Aphanisma blitoides Eliza L. Maher 2006-5-2 s.n. Orange South Coast, Dana Point Headlands, CNLM preserve 46 Comment
  UCR203989  Aphanisma blitoides Fred M. Roberts 2008-3-12 6736 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
  CDA25635  Apium graveolens A. C. Sanders, Fred M. Roberts 2008-6-17 35469 Orange Peninsular Range; Santa Ana Mountains.; Lomas de Santiago, Agustine staging area near Limestone Canyon Road gate at Santiago Canyon Road. Comment
  UCR100451  Apium graveolens B. G. Pitzer 1996-4-30 2771 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR47864  Arabis glabra David Charlton 1987-5-4 s.n. Orange Santa Ana Mtns., Chiquito Basin, Trail from Blue Jay Campground to Chiquito Falls 762 Comment
  CAS-BOT-BC171630  Aralia californica James R. Shevock 1976-10-28 5358 Orange Along Silverado Canyon Road int he vicinity of Bigcone Spring, Santa Ana Mts., Cleveland National Forest 914 Comment
  RSA308986  Aralia californica James R. Shevock 1976-10-28 5358 Orange Along Silverado Canyon road in the vicinity of Bigcone Spring, Santa Ana Mts, Cleveland National Forest. 915 Comment
  RSA542587  Aralia californica Fred M. Roberts, R. E. Riefner 1988-7-19 4114 Orange Santa Ana Mountains; Maple Springs Truck Trail, Upper Silverado Canyon, 1.9km N Modjeska Peak. 1128 Comment
  CDA5520  Araujia sericifera L. Liekhus 1957-7-1 Orange 0 Comment
  IRVC26421  Arctostaphylos australis Mark A. Elvin 2004-2-22 3147 Orange UCI Arboretum Southern Coastal 15 Comment
  SEINET10874387  Arctostaphylos edmundsii James S. Miller 2001-12-15 Miller 10649 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
  RSA626922  Arctostaphylos glandulosa Jon E. Keeley 1992-6-12 15507 Orange Hotshot Camp, north of Ortega Highway (Highway 74). 900 Comment
  POM254923  Arctostaphylos glandulosa subsp. glandulosa W. Pequegnat 1940-6-19 s.n. Orange Main Divide Road, between Pleasants and Bedford Peaks. Santa Ana Mts. Comment
  RSA626920  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15505 Orange Hotshot Camp, north of Ortega Highway (Highway 74). 900 Comment
  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
  RSA629323  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15504 Orange Road to Blue Jay Campground, 1 km south of Hotshot Camp, north of Ortega Hwy. (Hwy. 74). 800 Comment
  RSA629332  Arctostaphylos glandulosa subsp. glandulosa C. J. Fotheringham, Jon E. Keeley 1996-6-24 27643 Orange Ca. 3 km west of Sierra Peak. 700 Comment
  RSA629344  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15501 Orange Road to Blue Jay Campground, 1 km south of Hotshot Camp, north of Ortega Hwy. (Hwy. 74). 800 Comment
  RSA80656  Arctostaphylos glandulosa subsp. glandulosa P. A. Munz, E. K. Balls 1952-8-19 17924 Orange summit of Ortega Hwy. 823 Comment
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Nov 1 2013
  SD247631  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49708 Orange Northern Santa Ana Mountains; Sierra Peak. 900 Comment
  UC1120328  Arctostaphylos glandulosa subsp. zacaensis H. A. Jensen 1937-11-4 415 Orange head of Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  UCR191667  Arctotheca prostrata Robert DeRuff 2004-1 548 Orange South Coast, Newport Beach, Upper Newport Bay, bluff below Eastbluff North 18 Comment
  SEINET4002143  Argemone munita var. robusta G. B. Ownbey, F. Ownbey 1954-1 2168 Orange Between Modjesca Peak and Santiago Peak. 1524 Comment
  RSA752035  Argyranthemum foeniculaceum Fred M. Roberts 2008-3-27 6814 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 1, 0.5km W Marine Institute (Dana Point Harbor). 45 Comment
  UCR253006  Aristida adscensionis D. E. Bramlet, F. Roberts & CNPS Field Trip 1983-4-16 1367 Orange South Coast, Laguna Beach, Sycamore Hills, central ridge; 1.4 km NNE jct of El Toro and Laguna Cyn Rds; 5.4 km ESE Signal Peak 117 Comment
  RSA39  Aristida adscensionis var. modesta J. T. Howell 1928-2-7 817 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA663207  Aristida purpurea var. parishii R. E. Riefner 2000-8-3 20 -709 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and Windy Ridge. 534 Comment
  RSA703846  Aristida purpurea var. parishii D. E. Bramlet, Fred M. Roberts 2003-3-13 3336 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
  UCD56376  Aristida ternipes var. gentilis D. E. Bramlet; Fred Roberts 2003-3-13 3336 Orange Donna O'Neill Reserve, north east ridgeline 762 m west of Cristianitos Rd., and 1.15 km north of the E-W Access Road. 198 Comment
  RSA539377  Arrhenatherum elatius Fred M. Roberts 1988-6-10 4098 Orange Modejeska Peak, 0.8 km SW summit along crest, UTM 3730400mN, 449100mE, alt. 1548 m. 1548 Comment
  JEPS36923  Artemisia biennis L. M. Booth 1932-7-4 1250 Orange Newport Bay Comment
  RSA776  Artemisia biennis J. T. Howell 1927-10-29 784 Orange Bryant Ranch near Long Beach. 15 Comment
  UC111237  Artemisia biennis Theodore W. Minthorn 1907-8-18 7 Orange Laguna Comment
  CLARK-A1528-5239  Artemisia californica John C. Roos 1937-8-31 2348 Orange San Clemente Comment
  RSA781180  Artemisia californica T. B. Salvato 2010-10-27 5124 Orange Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 52 Comment
  IRVC25177  Artemisia douglasiana Fred M. Roberts, Brenda Fugle 1986-10-1 3156 Orange Laguna Hills; creek channel along Cabot Rd. ca. 1.0km N Pacific Park Pkwy. Southern Coastal 99 Comment
  IRVC3140  Artemisia douglasiana Fred M. Roberts 1986-9-3 3140 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  UCR193342  Artemisia douglasiana A. C. Sanders, Fred M. Roberts 2008-6-17 35461 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  UCR231349  Artemisia douglasiana A. C. Sanders, Kent Beaman 2011-9-27 39900 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347 deg. ) of Santiago Peak 903 Comment
  RSA774  Artemisia dracunculus J. T. Howell 1927-9-24 752 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  UC489198  Artemisia dracunculus C. V. Meyer 1928-7-30 597 Orange Saunder's Meadow San Jacinto Mts., Saunder's Meadow 1676 Comment
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Nov 12 2014
  HSC4510  Arthrocnemum subterminale J. W. Johnson 1961-3-30 Orange Newport Beach, seep along cliff base at N side of Big Canyon near upper Bay Rd. Comment
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Jul 17 2015
  UCSB23299  Arthrocnemum subterminale Keefe, Joseph 1967-3-26 Orange Newport Bay, on Back Bay Drive, 2.0 miles northeast of junction with Jamboree Drive, Corona del Mar 3 Comment
  RSA703364  Arthrocnemum subterminale R. E. Riefner Jr. 2004-5-6 4 -172 Orange Newport Beach, north side of Pacific Coast Hwy., west of Bayside Drive near Newport Dunes Beach Club. 10 Comment
  RSA12377  Arundo donax C. B. Wolf, E. R. Johnson 1934-3-21 5579 Orange Santa Ana River, Santa Ana Canyon, 1/2 mi. S.W. of Mexican Houses, Rancho Santa Ana. 122 Comment
  RSA49952  Asclepias eriocarpa E. K. Balls 1949-6-11 13494 Orange heavy clay and stone, steep dry benches, Rancho Santa Ana 2 mi below entrance to Botanic Garden, Santa Ana River Canyon. 122 Comment
  RSA5959  Asclepias fascicularis C. B. Wolf 1932-7-7 3853 Orange Bixby Ave, about 1 mi. east of Los Alamitos Blvd., 100 ft. W. of S.E. corner of N.E 1/4 of N.W 1/4 Comment
  UCR141345  Asparagus asparagoides Robert DeRuff 1994-2-24 436 Orange Southern Coast, Newport Beach, Newport Back Bay, below Eastbluff North 9 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
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Feb 28 2016
  SEINET3153585  Aspidotis californica W. B. Crockatt 1908-6-1 sn Orange Capistrano Valley Comment
  UCSB52883  Asplenium vespertinum Roberts, Fred; Allen, R. 1983-4-10 Orange Santa Ana Mtns; Upper Hot Springs Canyon, 2.3 km SW Falcon Group Camp; 1.9 km S Los Pinos Peak. 852 Comment
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Feb 26 2013
  RSA562611  Aster radulinus Steve Boyd, Fred M. Roberts 1992-10-14 7715 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
  RSA594815  Aster radulinus Fred M. Roberts, Steve Boyd 1992-10-14 4852 Orange Santa Ana Mts.: ridge south of Mabey Canyon, just north of Skyline Drive near Orange County line, 2.7 km southeast of Sierra Peak 820 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
  RSA232225  Aster subulatus var. ligulatus James Henrickson 1970-10-3 5360 Orange 3 miles NE of Huntington Beach just N of Bolsa Chica Salt Marsh. 0 Comment
  RSA782  Aster subulatus var. ligulatus J. T. Howell 1927-10-29 775 Orange Bryant Ranch near Long Beach. 15 Comment
  SEINET878948 Image available Asteraceae D. D. Keck 1933-1 2537 Orange Seal Beach. Comment
  RSA699634  Astragalus didymocarpus Keith E. Hoffmaster 1935-3-17 s.n. Orange Near El Toro (Trabuco rd.) Comment
  UCR191477  Astragalus didymocarpus A. C. Sanders, Fred M. Roberts 2008-4-8 34749 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA732060  Astragalus didymocarpus var. didymocarpus A. C. Sanders, Fred M. Roberts 2008-4-8 34749 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UC1929556  Astragalus didymocarpus var. didymocarpus Scott D. White, Justin Wood 2008-4-21 11904 Orange Chino Hills: Chino Hill State Park, N of 91 freeway, above Yorba Linda. Comment
  IRVC19366  Astragalus didymocarpus var. didymocarpus R. L. Allen 1975-4-20 Orange San Juan Creek bed, 1.4km N La Novia Bridge, 15km W waters edge. San Juan Capistrano Comment
  CAS-BOT-BC186732  Astragalus gambelianus Steve Boyd; Tim Ross 1992-5-20 7458 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail, upstream 1/4 mile to spur trail leading to old mining habitations in side canyon 411 Comment
  RSA220982  Astragalus gambelianus E. W. Lathrop 1966-3-23 6102 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  SEINET10491172  Astragalus trichopodus subsp. leucopsis Tilforth 1979-5-23 TILFORTH 1808 Orange On steep rock cliffs with encelia califronica, eriogonum fasciculatum. Mouth of Aliso canyon, s laguna. Comment
  CAS-BOT-BC200841  Astragalus trichopodus var. trichopodus John Thomas Howell 1927-6-2 2415 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 Comment
  RSA737849  Atriplex R. E. Riefner 2006-10-19 06 -546 Orange City of Lake Forest, 0.5 mile N of Alton Pwy on E side of SR 241. 230 Comment
  HSC101878  Atriplex amnicola Rick E. Riefner Jr 2006-4-17 6155 Orange Upper Newport Bay, near Bayview Wy. and Bayview Pl. 7 Comment
  RSA671246  Atriplex amnicola R. E. Riefner 1999-5-22 99 -290 Orange City of Dana Point, beach west of Pacific Coast Hwy. South of Salt Creek near Ritz Carlton Hotel. 15 Comment
  RSA743665  Atriplex amnicola R. E. Riefner 2007-9-11 7 -378 Orange City of San Juan Capistrano, vicinity of San Juan Creek road and Paseo Christina. 34 Comment
  POM649  Atriplex argentea subsp. expansa W. L. Crawford 1915-09 s.n. Orange Huntington Beach Comment
  RSA678456  Atriplex californica Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1109 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  RSA255  Atriplex canescens J. T. Howell 1927-10-22 761 Orange Near Eastern Boundary, Rancho Santa Ana. 152 Comment
  RSA260  Atriplex canescens J. T. Howell 1927-10-22 759 Orange Near Eastern Boundary, Rancho Santa Ana. 152 Comment
  UCR103288  Atriplex canescens B. G. Pitzer, T. Tennant 1997-11-8 3378 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. 30 Comment
  UCR221461  Atriplex canescens Dick Newell, Don Millar, Steve Shinn 2010-9-28 38 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Haul Road (Jeffrey Rd.) 1/2 mile east of Hwy 241 toll road 236 Comment
  CAS-BOT-BC170194  Atriplex canescens subsp. canescens John Thomas Howell 1927-7-29 2874 Orange In hills on n. side of Santa Ana Canyon. 152 Comment
  CAS-BOT-BC172632  Atriplex coulteri Louis C. Wheeler 1934-1-14 2363 Orange Aliso Creek near Laguna 76 Comment
  CAS-BOT-BC172633  Atriplex coulteri Louis C. Wheeler 1934-1-14 2363 Orange Aliso Creek near Laguna 76 Comment
  CAS-BOT-BC172635  Atriplex coulteri I. M. Johnston 1918-5-5 1928 Orange Laguna Beach Comment
  CAS-BOT-BC172636  Atriplex coulteri LeRoy Abrams 1903-4-18 3270 Orange Trabuco Arroyo near Capistrano Comment
  POM654  Atriplex coulteri L. R. Abrams 1903-4-18 3270 Orange Near San Juan Capistrano Comment
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Feb 4 2009
  RSA542648  Atriplex coulteri Fred M. Roberts, Kathy Keane 1988-5-26 4014 Orange Ranch Mission Viejo: Christianitos Canyon, 4.0km ESE Viejo Survey Mark. 162 Comment
  RSA580939  Atriplex coulteri D. E. Bramlet 1994-4-30 2377 Orange San Joaquin Hills. At the head of Bommer canyn, approximatly 30m. NE of the rideline truck trail, near peak 1033. 296 Comment
  CDA23267  Atriplex glauca R. E. Riefner Jr. 2005-12-13 05 -784 Orange Lake Forest; E side of SR-241, ca. 0.5 mi. N of Alton Pkwy. Comment
  SD243319  Atriplex glauca R. E Riefner 2005-12-13 05 784 Orange City of Lake Forest; ca. 0.5 mile N of Alton Pkwy along E side of SR-241 230 Comment
  SD243320  Atriplex glauca R. E Riefner 2006-3-19 06 52 Orange City of Newport Beach, near Avocado Ave. and San Nicolas Drive, W of MacArthur Blvd. 77 Comment
  RSA737232  Atriplex glauca R. E. Riefner 2005-12-13 05 -784 Orange City of Lake Forest, 0l5 miles N of Alton Pwy on E side of SR 241. 230 Comment
  RSA741695  Atriplex glauca R. E. Riefner Jr. 2009-1-2 09 /04/2015 Orange City of Newport Beach, Upper Newport Bay, vicinity of Irvine Ave. and Santiago Dr. 10 Comment
  SD253971  Atriplex lentiformis Jim Riley 2013-12-10 136 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  RSA5271  Atriplex lentiformis subsp. breweri B. D. Stark 1932-12-9 1676 Orange Capistrano Beach at Doheny Palisades. Comment
  CLARK-A1528-2529  Atriplex leucophylla John C. Roos 1937-2-23 1307 Orange Laguna Beach Comment
  POM293187  Atriplex leucophylla Lyman Benson 1946-5-13 12090 Orange Corona del Mar, Pacfic Ocean drainage area 50 Comment
Read comments
Dec 2 2008
  RSA478311  Atriplex leucophylla F. R. Fosberg 1930-7-10 S- 3198 Orange Anaheim Landing. [Los Angeles Co. on label] Comment
  POM656  Atriplex pacifica D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  UC219363  Atriplex pacifica D. L. Crawford 1916-5-5 Orange Laguna Beach Laguna Beach (bluffs along shore, Southern California) Comment
  CLARK-A1528-4911  Atriplex semibaccata John C. Roos 1949-10-10 4679 Orange Doheney Beach Comment
  RSA743498  Atriplex semibaccata Fred M. Roberts 2008-7-10 7070 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
  UCSB48087  Atriplex semibaccata Roberts, Jr., Fred 1981-5-2 Orange Mission Viejo; Camino Capistrano, 1.7 km. N Crown Valley Parkway 49 Comment
  POM201895  Atriplex serenana L. M. Booth 1932-7-1 1248 Orange Newport Lagoon. Comment
  CAS-BOT-BC176589  Atriplex serenana var. davidsonii L. R. Abrams 1917-6-23 6571 Orange Balboa Comment
  JEPS59655  Atriplex serenana var. serenana L. M. Booth 1932-7-4 1255 Orange Newport Bay Comment
  SD178169  Atriplex suberecta Tom Perring, Tracy Pinckard 1994-3-2 Orange South Coast: Tustin, Marine Helicopter Station at the corner of Moffett Drive and Jamboree Rd. Growing along a ditch in an agricultural area. 10 Comment
  SD220052  Atriplex suberecta Mark A. Elvin 2004-5-2 3424 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  RSA703646  Atriplex suberecta R. E. Riefner Jr. 1999-5-22 99 -292 Orange City of Dana Point, west of Pacific Coast Hwy., vicinity of Salt Creek Park and Ritz Carlton Hotel. 15 Comment
  RSA453967  Atriplex watsonii F. R. Fosberg 1930-7-10 S 3188 Orange Anaheim Landing. [Los Angeles Co. on label] Comment
  RSA453975  Atriplex watsonii F. R. Fosberg 1931-8-19 7285 Orange Newport Bay. 0 Comment
  RSA678508  Atriplex watsonii Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. 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
  UCR14050  Atriplex watsonii Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  RSA453969  Atriplex watsonii H. E. Hasse, Anstruther Davidson 1907-9-12 1768 Orange Newport. Comment
  CAS-BOT-BC146058  Avena barbata Ira L. Wiggins 1966-3-22 20554 Orange Floor of Silverado Canyon about 0.5 mile below entrance to Cleveland National Forest. Comment
  UCR193000  Avena barbata A. C. Sanders, T. B. Salvato 2008-5-13 35378 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
  UCR99871  Avena barbata Scott D. White 1993-3-5 1114 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  CDA22566  Avena fatua E. McRae 1965-4-8 HS 0068 Orange Costa Mesa. 0 Comment
  UCR154264  Avena fatua Mark A. Elvin 2004-5-2 3421 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR192634  Avena fatua A. C. Sanders, Fred M. Roberts 2008-3-25 34516 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR217469  Avena fatua Mark A. Elvin 2003-2-23 2316 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  RSA184189  Avena fatua I. L. Wiggins 1966-3-22 20555 Orange Silverado Canyon about 0.5 mile below entrance to Cleveland National Forest. Comment
  RSA696691  Avena sativa Keith E. Hoffmaster 1927-5-5 s.n. Orange Santa Ana. Comment
  RSA598135  Baccharis douglasii Brian Fink 1992-10-7 s.n. Orange Huntington Beach, Salt marsh invaded for several years by fresh water Comment
  RSA528051  Baccharis emoryi A. C. Sanders 1990-10-6 10190 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  RSA768505  Baccharis emoryi Justin M. Wood 2009-12-1 1389 Orange Santa Ana River: marsh just upstream of Pacific Coast Highway. 0 Comment
  JEPS57449  Baccharis glutinosa L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2044 a Orange north of (across U.S. Highway 101 from Huntington State Beach) Newport Beach; Bolsas Marsh Comment
  SD237301  Baccharis glutinosa A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37201 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area. 259 Comment
  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
  RSA0008328  Baccharis malibuensis R. E. Riefner Jr. 2007-6-22 07 -275 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Rd. 545 Comment
  CAS-BOT-BC99442  Baccharis pilularis B. D. Stark 1933-1-21 4523 Orange San Clemente 91 Comment
  RSA0028029  Baccharis pilularis Fred M. Roberts 2012-9-6 7702 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, about 1.8 kilometers NW Pelican Hill summit. 64 Comment
  RSA731919  Baccharis pilularis Fred M. Roberts, Sandy Leatherman 2007-11-27 6660 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
  UCR103721  Baccharis pilularis B. G. Pitzer, T. Tennant 1997-11-8 3374 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. 30 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
  UCR207595  Baccharis pilularis O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  RSA292686  Baccharis pilularis James Henrickson 1972-10-21 8047 Orange Eastern Anaheim, 2 blocks E of Imperial Hwy along LA Palma Ave, just N of Santa Ana River. 61 Comment
  UCR222861  Baccharis pilularis subsp. consanguinea T. B. Salvato 2010-10-27 5131 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  CHSC13483  Baccharis salicifolia T. R. Casale 1974-4-11 7 Orange Ca. 1.3 mi NE of the Mission San Juan Capistrano on Hwy 24. 42 Comment
  UCR102020  Baccharis salicifolia B. G. Pitzer 1997-3-25 3022 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, along the bike trail 30 Comment
  JEPS21243  Baccharis salicifolia subsp. salicifolia L. M. Booth 1933-10-18 Orange Newport Beach Comment
  UCSB36207  Baccharis salicina Ferren, Wayne; Roberts, Fred 1980-8-27 Orange Newport Back Bay trending NW from Bayside Drive, ca. 3.5 km. NE of Rt. 1, Newport Beach Comment
  CAS-BOT-BC443960  Bacopa monnieri R. E. Riefner, Jr. 2012-7-1 12 -295 Orange City of Mission Viejo, Oso Creek, ca. 1.3 mi N of Paseo De Colinas Ave. on Camino Capistrano Ave. 87 Comment
  RSA0035665  Bacopa monnieri R. E. Riefner Jr. 2012-7-1 12 -295 Orange city of Mission Viejo, Oso Creek, c. 1.3 mi north of Paseo de Colinas Ave. on Camino Capistrano Ave. 88 Comment
  UCR266666  Bacopa monnieri Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7090 Orange YORBA LINDA: Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave 113 Comment
  RSA615541  Bahiopsis laciniata Fred M. Roberts 1997-10-28 5052 Orange Lomas de Santiago: mouth of Silverado Canyon, along Black Star Canyon Road, 0.1 km N jct. Silverado Canyon rd., 4.8 km NNW Bolero Lookout. 305 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
  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
  POM201706  Batis maritima L. M. Booth 1932-6-9 1184 Orange Newport Bay. Comment
  UCR240088  Bebbia juncea Dick Newell, Don Millar 2012-10-2 303 Orange Peninsular Range; Santa Ana Mtns., Blackstar Cyn at Santiago Creek, 0.35 mi. SW of Baker Canyon Rd. 288 Comment
  UCR38073  Bebbia juncea G. Sampson 1985-5-7 85- 387 Orange Chino Hills State Park, abandoned corral site at the west end of Telegraph Canyon Comment
  CAS-BOT-BC106377  Bebbia juncea var. aspera Helen D. Geis 1902-12-6 s.n. Orange Santiago Creek Comment
  CAS-BOT-BC106423  Bebbia juncea var. aspera John Thomas Howell 1927-6-2 2412 Orange Southern Puente Hills in teh Santa Ana Canyon [Canon] 152 Comment
  CAS-BOT-BC106425  Bebbia juncea var. aspera C. B. Wolf 1931-7-25 2295 Orange North of Pear Orchard, Rancho Santa ana, Santa Ana Can. 121 Comment
  UC484167  Bebbia juncea var. aspera B. D. Stark 1929-11-2 651 Orange Rancho Santa Ana 152 Comment
  RSA0062667  Bellis perennis Carol Zuck 52 Orange Saybrook Lane at the intersection with Silliman Street, Huntington Beach. Comment
  RSA797475  Berberis pinnata subsp. pinnata R. F. Thorne 1977-11-21 49988 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  RSA652654  Bloomeria crocea Diane T. Liggett 1981-5-16 3 Orange Riverside Freeway (91) east to Imperial Hwy, south to Nohl Ranch Road, east to Serrano Ave., south on Hidden Cyn. Road, .5 km into Weir Cyn. Comment
  SBBG18501  Bloomeria crocea var. crocea E. B. Carlton 1962-6-24 9 Orange rd from Hidden Valley Rd to Temple Hills Rd, Laguna Beach 182 Comment
  CAS-BOT-BC434510  Boerhavia diffusa E. Dudley 1939-8-24 s.n. Orange Unspecified Comment
  CAS-BOT-BC31017  Bolboschoenus maritimus Helen D. Geis 1902-3-1 s.n. Orange Peat Lands Comment
  CHSC30499  Bolboschoenus maritimus subsp. paludosus Diane H. Ikeda 1980-4-2 216 Orange Upper Newport Bay Ecological Reserve. At the intersection of Back Bay Drive and San Joaquin Rd. 0 Comment
  SD127868  Bolboschoenus maritimus subsp. paludosus Richard Marin 1971-5-11 M 71 80 Orange Corner of MacArthur Blvd. and University Drive, Irvine 0 Comment
  UC520300  Bolboschoenus robustus Joseph Andorfer Ewan 1932-7-29 7728 Orange Newport Lagoon Comment
  UCD140049  Bolboschoenus robustus Louis C. Wheeler 1932-6-25 870 Orange inland arm of Newport Bay. Comment
  CDA1758  Bothriochloa barbinodis T. C. Fuller 1961-10-17 7155 Orange East side of Hwy. 101 Alt., opposite 2787 So. Pacific Coast Highway, Laguna Beach. 0 Comment
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Jul 8 2013
  RSA588717  Bothriochloa barbinodis Fred M. Roberts 1990-6-5 4680 Orange Rancho Mission Viejo: Uper Gabino Canyon, near Orange County line, 3.9 kilometers E Point Ranch Survey Marker; UTM Z11 37 10 300m N, 4 52 100m E. 280 Comment
  UCR174231  Bothriochloa barbinodis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33056 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA700930  Bougainvillea Wilson Seacord 1935-10 s.n. Orange H.S. Campus (physiographic region CR3) Comment
  RSA731758  Bougainvillea glabra Fred M. Roberts, Sandy Leatherman 2007-11-9 6647 Orange San Juan Canyon along San Juan Creek, within the community of San Juan Hot Springs. 216 Comment
  POM201613  Bowlesia incana L. M. Booth 1932-5-19 1065 Orange Newport Bay. Comment
  POM294343  Bowlesia incana Lyman Benson 1947-4-27 12341 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  RSA520  Bowlesia incana J. T. Howell 1928-2-26 853 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR222385  Bowlesia incana Mark A. Elvin 2003-1-26 2246 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA734975  Brachychiton populneum A. C. Sanders, Fred M. Roberts 2008-6-17 35479 Orange Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCSB52932  Brachypodium distachyon Roberts, Fred; Marsh, K. 1983-5-13 Orange Dana Point Headlands; S of Pacific Coast Hwy, 0.5 km NW Dana Point Harbor; 0.4 km SSW Richard Henry Dana School 80 Comment
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Jan 27 2021
  UCR228806  Brassica geniculata Dick Newell, Don Millar 2011-5-10 149 Orange Peninsular Range; Santa Ana Mtns., along MWD service road between Outdoor Education Center and Fremont Canyon, 0.2 mi. above Peters Cyn. Rd. 193 Comment
  IRVC1042  Brassica nigra B. Mawdsley 1965-4-18 Orange Corona del Mar. Newport Beach Comment
  UCR191783  Brassica nigra A. C. Sanders, Fred M. Roberts 2008-3-25 34567 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
  CAS-BOT-BC36769  Brassica rapa Ira L. Wiggins 1966-2-12 20427 Orange North side of La Palma Avenue near Harbor Boulevard, Anaheim. Comment
  RSA482936  Brassica rapa Freda Detmers 1933-11-1 s.n. Orange Near Fullerton. Comment
  UCR109634  Brassica rapa subsp. sylvestris G. S. Nuessly 1980-11-27 s.n. Orange Tustin. SE corner of 17th St. and Yorba Ave. 52 Comment
  RSA650639  Brassica rapa var. rapa Daniel Truong 1991-5-5 8 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of closed area. Comment
  RSA0069232  Brassica tournefortii Fred M. Roberts, Megan Lulow 2009-3-18 7137 Orange Santa Ana Mtns. Region: Lomas de Santiago: Loma Ridge at Calochortus Ridge, near East Loma Ridge Road, 2.6 km NW Bee Peak, &3.4 km NE of Rattlesnake Reservoir Dam. 375 Comment
  RSA0073643  Brassica tournefortii Fred M. Roberts, Lee Ann Caranza, Eliza Maher 2009-4-7 7144 Orange South Coast Region: Dana Point Headlands: Dana Point CNLM Preserve, 0.7 km WNW Dana Point Marine Institute at Dana Point Harbor, near 2nd Lookout along trail. 49 Comment
  RSA584704  Brickellia nevinii Fred M. Roberts, Carol A. Roberts 1989-5-11 4352 Orange Gypsum Canyon, 2.9 km WSW Sierra Peak, about 3.3km S by road of Santiago Canyon Road. 189 Comment
  RSA184166  Bromus arizonicus I. L. Wiggins 1966-3-1 20482 Orange Along W edge of California State College, Fullerton. Comment
  POM293859  Bromus carinatus Lyman Benson 1947-4-27 12343 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  RSA701598  Bromus carinatus Rankin s.n. Orange Santa Ana. Comment
  RSA734118  Bromus carinatus A. C. Sanders 2008-4-29 35144 Orange Peninsular Range;Santa Ana Mtns.: Lomas de Santiago, western end of Loma Ridgeon road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  CAS-BOT-BC156207  Bromus catharticus John Thomas Howell 1956-3-11 30923 Orange Yorba Linda. Comment
  RSA159490  Bromus catharticus John H. Thomas, I. L. Wiggins 1962-6-27 308 Orange Santa Ana. Comment
  RSA732241  Bromus diandrus A. C. Sanders, Fred M. Roberts 2008-4-22 35051 Orange Penisular Range; Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon. c. 3.5 mi. WSW of Silverado 493 Comment
  UCR102005  Bromus diandrus B. G. Pitzer 1997-3-25 3039 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, on bluffs immediately above beach, along trail that winds around restoration area and down to beach. 30 Comment
  RSA44  Bromus diandrus J. T. Howell 1927-6-9 67 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR140787  Bromus hordeaceus Robin G. Marushia 2004-5-4 009 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  UCSB48070  Bromus hordeaceus Fritzke, S.; Roberts, Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N of Dana Hills High School; 1.9 km. W of Marco Forster Junior High School 100 Comment
  RSA542558  Bromus hordeaceus Fred M. Roberts 1987-4-21 3380 Orange Aliso Viejo: Aliso Creek, Aliso Creek bike trail, 3.0 kilmeters ENE Moulton Peak., UTM 3715500m N, 433650m E 73 Comment
  UCD59517  Bromus rubens Ira L. Wiggins 1966-3-4 20494 Orange Shoulder of Peralta Ave. near junction of Newport Freeway and Riverside Highway. Comment
  RSA696330  Bromus rubens Keith E. Hoffmaster 1928-4-25 s.n. Orange Santa Ana Comment
  RSA0126612  Bromus sterilis Fred M. Roberts 2012-4-27 7538 Orange Lomas de Santiago: Loma Ridge, west of SR 241, tributary to Las Flores Cyn., near East Loma Ridge Road, 1.9 km SW Irvine Lake Park Campground & 1.2 km ESE Orange Co. Emergency Operations Center (Hill 1311). 350 Comment
  RSA734819  Bromus sterilis A. C. Sanders, Fred M. Roberts 2008-5-6 35251 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
  RSA708538  Bromus tectorum Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6218 Orange northwest slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.61km NNW summit Modjeska Peak. 1407 Comment
  CSUSB527  Cakile maritima Cesareo Perez 1971-5-12 S. N. Orange Huntington State Beach, Pacific Coast Highway at Brookhurst Comment
  RSA657669  Cakile maritima Michael J. Graeser 1988-5-17 44 Orange Huntington Beach. Bolsa Chica Ecological Reserve. Lower end of Outer Bolsa Bay. 100 ft. SE of parking lot at Warner and PCH. Comment
  UCD114944  Cakile maritima Earl Brown; Tracy Brown 1993-5-2 s.n. Orange Calafia Beach Park, found 10' S of entrance to the beach (just before railroad tracks). 6 Comment
  RSA713907  Callistemon citrinus R. E. Riefner Jr. 2005-11-23 5 -773 Orange City of Newport Beach, Upper Newport Bay, E of Jamboree Rd and S of Bayview Way at Bonita Creek channel. 6 Comment
  CDA5114  Callistemon viminalis R. E. Riefner Jr. 2007-3-18 07 -139 Orange City of Newport Beach, north shore of Newport Bay, North Star Beach, general vicinity of North Star Lane and Polaris Drive. Comment
  UCR210367  Callistemon viminalis T. B. Salvato, Billy Deane 2006-10-16 1942 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  RSA724030  Callistemon viminalis R. E. Riefner Jr. 2006-11-14 6 -674 Orange City of Irvine, San Diego Creek; vicinity of Campus Ave. at University Dr. 5 Comment
  CAS-BOT-BC140073  Calochortus E. W. Lathrop 1966-3-23 6098 Orange 4 miles NE of Lake Irvine, Black Star Canyon, Cleveland Nat'l. Forest, Trabuco District Comment
  RSA0015003  Calochortus catalinae Fred M. Roberts 2008-5-14 6970 Orange Lomas de Santiago: Loma Ridge, 0.1 km W Bee Peak summit and 3.9 km E Rattlesnake Canyon Reservoir dam. Irvine Ranch Conservancy. 515 Comment
  RSA220977  Calochortus catalinae E. W. Lathrop 1966-3-23 6098 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA539373  Calochortus catalinae Fred M. Roberts, Karlin G. Marsh 1989-3-7 4192 Orange Lomas de Santiago: Loma Ridge, tributary to Hicks Canyon, ca. 1.9 kilometers WSW Bee Survey Mark. 134 Comment
  RSA747606  Calochortus catalinae Fred M. Roberts 2000-5-4 5313 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
  UCR191352  Calochortus catalinae A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34639 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  UCR192103  Calochortus catalinae A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35289 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA16335  Calochortus splendens Percy C. Everett 1935-6-18 7199 Orange Santa Ana Mountains, Main Divide Motorway. 7.0 miles from Santiago Peak. 1311 Comment
  RSA16422  Calochortus splendens Percy C. Everett 1935-5-19 6874 Orange Santa Ana Mountains, Baker Canyon, West Ladd Truck trail. 305 Comment
  RSA602119  Calochortus splendens Scott D. White 1997-5-6 5046 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 Comment
  UCR16063  Calochortus splendens K. T. Ingram 1976-5-2 s.n. Orange Peninsular Range; Santa Ana Mtns., Ortega Highway, Route 74, 12 mi. east of Hwy 405 Comment
  CAS-BOT-BC492696  Calochortus splendens D. L. Crawford May 10 s.n. Orange Laguna Mts. 304 Comment
  RSA729799  Calochortus weedii Robert F. Thorne 1963-7-26 23839 Orange Tin Mine Canyon above Beeks Spring, Trabuco District, Cleveland National Forest 854 Comment
  RSA769610  Calochortus weedii E. W. Lathrop 1974-6-27 7417 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 396 Comment
  SEINET7067516  Calochortus weedii A. G. Vestal 1947-6-12 s.n. Orange San Juan Canyon. Coordinate datum: NAD27. UTM Zone 11, 448887mE, 3712881mN. Comment
  RSA0042761  Calochortus weedii J. Vlahos 1934-6-2 s.n. Orange Hills around Orange Co. Park. Comment
  NY1104588  Calochortus weedii var. intermedius L. Abrams 06 1901 1802 Orange Isabuco Canon [Isabuco Canyon] Comment
Read comments
Aug 7 2013
  RSA0013582  Calochortus weedii var. intermedius D. E. Bramlet 2008-5-28 4283 Orange Bee Cyn., Bowerman landfill site, 468m S Bee Cyn access road & 434m W of the active landfill. Comment
  SD134560  Calochortus weedii var. intermedius Craig Reiser 1992-6-12 Orange Laguna Niguel, west-facing slope 100 yards north of northeast corner of intersection of Crown Valley Parkway and Pacific Island Drive. Openings in chaparral. (IPB 3/08) Comment
  CDA25245  Calycadenia tenella A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35323 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, 0.3 mile west of Eastern Transportation Corridor (Highway 241) and 1.45 miles east of south end of Walnut Canyon Reservoir. Comment
  PASA2306  Calycadenia tenella Frank W. Peirson 1922-5-18 Orange Santa Ana River 121 Comment
  RSA761935  Calycadenia tenella Robt Allen 2005-4-30 12496 Orange Caspers Wilderness Park, East Ridge Trail. 175 Comment
  RSA562765  Calystegia macrostegia subsp. arida Steve Boyd 1992-5-19 7419 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
  SD255134  Calystegia macrostegia subsp. arida R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49796 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  IRVC978  Calystegia macrostegia subsp. cyclostegia B. T. Gittins 1965-3-14 Orange bluff above cove. Dana Point Headlands Comment
  IRVC987  Calystegia macrostegia subsp. cyclostegia M. Savage 1965-3-27 Orange Corona del Mar. Newport Beach 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
  RSA659546  Calystegia macrostegia subsp. macrostegia P. Shirokawa 1998-5-7 16 Orange Cleveland National Forest- Trabuco Ranger District, 0.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 808 Comment
  UC536955  Calystegia sepium subsp. binghamiae Lawrence M. Booth 1932-8-5 1359 Orange E of Huntington Beach (marsh border). Comment
  RSA33847  Calystegia soldanella N. C. Cooper 1944-6-3 1348 Orange Balboa Beach, On beach at sealevel. 0 Comment
  SD181587  Calystegia soldanella Valerie Soza, K Clark, L Gross, W Miller, F Roberts, G Wallace 2001-4-4 1114 Orange Anaheim Bay, Seal Beach National Wildlife Refuge; Seal Beach quad. Coastal sand dunes. 3 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
  RSA732239  Camissonia bistorta A. C. Sanders, Fred M. Roberts 2008-4-22 35044 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  UCR191473  Camissonia bistorta A. C. Sanders, Fred M. Roberts 2008-4-8 34740 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  CSUSB189  Camissonia cheiranthifolia subsp. suffruticosa Nancy J. Moriarty 1973-5-20 730520 3 Orange Huntington Beach; 0.5 mile north of Brookhurst Street on the west side of Pacific Coast Highway. Comment
  NY679611  Camissonia cheiranthifolia subsp. suffruticosa D. D. Keck 1933-9-21 2523 Orange Sunset Beach. Comment
  RSA454059  Camissonia cheiranthifolia subsp. suffruticosa Josephine Derigo 1941-7-5 s.n. Orange Laguna Beach. Comment
  RSA539380  Camissonia hirtella Fred M. Roberts, Carol A. Roberts 1988-6-2 4044 Orange Santa Ana Mtns.: Maple Springs Truck Trail, 8.7 km above Silverado Gate, 2.4 km N Modjeska Pk. 352 Comment
  RSA734338  Camissonia hirtella A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34624 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  UCR191226  Camissonia hirtella A. C. Sanders 2008-4-29 35123 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
  RSA507  Camissonia lewisii J. T. Howell 1928-4-7 902 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA4787  Camissonia micrantha James Snow s.n. Orange Bryant Ranch, near Long Beach. Comment
  RSA542490  Camissonia micrantha Fred M. Roberts, T. Sholars, B. Stechmeyer 1988-3-29 3880 Orange Santa Ana Mountains: Hot Springs Canyon, 0.5 km by road north Hwy 74, 0.9 km ESE Juan Rancho Survey Marker. 223 Comment
  UC1377639  Camissoniopsis bistorta John Ingram 1960-3-14 244 Orange on La Palma Avenue two blocks e Knotts Berry Farm; Buena Park Comment
  UCR237914  Camissoniopsis bistorta Dick Newell, Don Millar 2012-6-5 270 Orange Peninsular Range; Santa Ana Mtns., Loma Ridge East, 0.35 mi. due east of Hicks Haul Rd. 411 Comment
  CAS-BOT-BC160447  Camissoniopsis cheiranthifolia subsp. suffruticosa L. R. Abrams 1917-6-23 6576 Orange Balboa Comment
  CAS-BOT-BC160450  Camissoniopsis cheiranthifolia subsp. suffruticosa Peter H. Raven 1957-9-28 11372 Orange North limits of Surfside Comment
  JEPS31488  Camissoniopsis cheiranthifolia subsp. suffruticosa L. M. Booth 1932-5-25 1114 Orange Balboa Island Newport Bay Comment
  SBBG47450  Camissoniopsis cheiranthifolia subsp. suffruticosa N. C. Cooper 1944-6-3 1326 Orange Balboa Beach Comment
  SD181437  Camissoniopsis cheiranthifolia subsp. suffruticosa Valeri Soza, Kevin Clark, et al. 2001-4-4 1111 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Reguge. 3 Comment
  SDSU3347  Camissoniopsis cheiranthifolia subsp. suffruticosa Peter Raven 1957-9-28 11372 Orange South of Seal Beach Comment
  UCSB48058  Camissoniopsis cheiranthifolia subsp. suffruticosa Roberts, Fred 1982-4-3 Orange Dana Point Headlands, north of Dana Strand Road, 0.5km W Dana Point Harbor; 0.8 km SSW Richard Henry Dana School 80 Comment
  UC635403  Camissoniopsis intermedia H. L. Mason 1926-4-25 2926 Orange 5 mi s Laguna Comment
  JEPS31778  Camissoniopsis lewisii Alice King 1908-1 Orange Santa Ana Comment
  CAS-BOT-BC37127  Capsella bursa-pastoris Ira L. Wiggins 1966-2-25 20476 Orange Firestone Boy Scout Reservation, east of Brea. Comment
  RSA697415  Capsella bursa-pastoris Snow 1929-2-16 3 Orange Santa Ana. Comment
  CAS-BOT-BC37592  Cardamine californica C. B. Wolf 1931-1-30 1826 Orange Santa Ana Mountains. Claymine Canyon. 304 Comment
  CAS-BOT-BC37594  Cardamine californica C. B. Wolf 1931-3-6 1851 Orange West slope of Santa Ana Mountains. Trabuco Canyon. Trabuco Camp Ground. 609 Comment
  LA204281  Cardamine californica C. B. Wolf; 1931-1-30 1826 Orange Santa Ana Mountains, Claymine Canyon 304 Comment
  RSA2078  Cardamine californica var. integrifolia C. B. Wolf 1931-3-6 1851 Orange Trabuco Canyon at Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  RSA271144  Cardamine californica var. integrifolia C. W. Tilforth, John Dourley, Walter Wisura 1978-3-10 1501 Orange along Ortega hwy 74, 2 miles NE of San Juan Forest Station, Santa Ana Mtns. Comment
  UCR237835  Cardamine flexuosa Mark A. Elvin 2003-2-2 2298 Orange South Coast, UC Irvine Arboretum, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 17 Comment
  UCSB48219  Carduus pycnocephalus Roberts, Fred 1981-6-20 Orange Dana Point; 0.7 km. NNE Dana Hills High School 67 Comment
  UCR210275  Carex A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37190 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  CAS-BOT-BC118490  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Unspecified Comment
  CAS-BOT-BC118498  Carex praegracilis Helen D. Geis 1902-1-1 505 Orange Near Santa Ana Comment
  CAS-BOT-BC118500  Carex praegracilis Helen D. Geis 1902-4-1 506 Orange Santa Ana Comment
  POM202036  Carex praegracilis L. M. Booth 1932-7-1 1234 Orange Anaheim Marsh Comment
  RSA697497  Carex praegracilis Elisabeth Norland 1929-4-11 s.n. Orange Cypress. Comment
  RSA735747  Carex praegracilis A. C. Sanders, Fred M. Roberts 2008-6-17 35496 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff s Training Facility, just east of Hwy 241 280 Comment
  CAS-BOT-BC118487  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Peat Lands Comment
  UC837277  Carex praegracilis Helen D. Geis 1902-1 Orange Comment
  POM201835  Carex schottii L. M. Booth 1932-6-4 1148 Orange Newport Lagoon. Comment
  RSA0026256  Carex spissa Fred M. Roberts 2013-6-12 7794 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  UCD96837  Carpobrotus chilensis Gordon Pilone 1961-3-14 110 Orange Little Corona Del Mar. 30 Comment
  RSA748267  Carpobrotus edulis A. C. Sanders, Fred M. Roberts 2008-6-17 35470 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCR42442  Carpobrotus edulis A. C. Sanders 1986-5-31 6531 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
  POM223456  Carthamus tinctorius Albert J. Perkins 1936-6-4 s.n. Orange Santa Ana Comment
  RSA689448  Castilleja affinis Scott D. White, Amanda Duchardt 2003-4-10 9002 Orange Santa Ana Mountain Foothills: Ridges and east-facing canyons above Trampas Canyon. 122 Comment
  RSA734016  Castilleja affinis A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34609 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 366 Comment
  UCR191326  Castilleja affinis A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34609 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  RSA553115  Castilleja affinis Fred M. Roberts, Carol A. Roberts 1989-5-11 4347 Orange Santa Ana Mountains: Upper Blind canyon, east fork, along power line maintainance road, 3.9km SE Walnut Reservoir. 381 Comment
  JEPS21372  Castilleja affinis subsp. affinis Milo S. Baker 1958-5-20 13304 Orange Newport Bay Comment
  JEPS3908  Castilleja affinis subsp. affinis Lawrence M. Booth 1932-5-19 1074 Orange Newport Bay 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
  SBBG128670  Castilleja affinis subsp. affinis R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49649 Orange Coal Cyn (NW of Sierra Peak); Santa Ana Mtns Comment
  UC138961  Castilleja densiflora subsp. gracilis LeRoy Abrams 1903-4-18 3266 Orange near Capistrano Comment
  JEPS10617  Castilleja exserta subsp. exserta Alice King Mar 1903 Orange Anaheim plain Anaheim Comment
  JEPS18961  Castilleja exserta subsp. exserta Rimo Bacigalupi with Francia Chisaki 1957-4-3 5787 Orange 6 mi s Irvine (along U.S. Hwy 101) 121 Comment
  RSA705  Castilleja foliolosa J. T. Howell 1928-2-25 848 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA764938  Castilleja foliolosa Doris Bowers 1971-4-19 1681 Orange Black Star Canyon Indian Site 762 Comment
  RSA708365  Castilleja martinii var. martinii Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6227 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  UC537012  Castilleja minor subsp. spiralis Lawrence M. Booth 1932-6-28 1217 Orange Bolsas Marsh Comment
  UCR221459  Castilleja minor subsp. spiralis Dick Newell, Don Millar, Emily Sheehan 2010-8-3 30 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lakeside Rd. (dirt), 1/4 mile west of Black Star Canyon Rd. 259 Comment
  RSA429526  Caulanthus heterophyllus Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  RSA542653  Caulanthus heterophyllus Fred M. Roberts 1988-3-9 3843 Orange Laguna Beach, Goff Ridge, along Nyes Place, 0.9km NE Goff Island. 169 Comment
  RSA749288  Caulanthus heterophyllus Fred M. Roberts 1999-4-2 5166 Orange Lomas de Santiago: Loma Ridge, Limestone Cyn. along Dripping Spgs Rd., at mouth of Dripping Spgs. Cyn., 1.0 km W Silverado Sch. and 4.3 km NNW Bolero Lookout. 311 Comment
  UCR190976  Caulanthus heterophyllus A. C. Sanders, Fred M. Roberts 2008-4-22 35001 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  RSA0121892  Caulanthus lasiophyllus D. E. Bramlet 2008-3-31 4134 Orange 305m E of Upper Hicks Haul Rd, in Trib to Limestone Cyn., 1km S of Santiago Cyn. Rd. 311 Comment
  CAS-BOT-BC48495  Ceanothus crassifolius Marcus E. Jones 1930-3-3 26514 Orange Santa Ana mountains Comment
  RSA171009  Ceanothus crassifolius Robert F. Thorne 1963-7-26 32829 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  SEINET13945802 Image available Ceanothus crassifolius S. Lambert 1981-1 1901 Orange Along hwy 74 17.4 mi E of jct with hwy 5, 2100 ft elev. 640 Comment
  SEINET13945958 Image available Ceanothus integerrimus S. Lambert 1981-1 1958 Orange Cleveland Nat'l Forest, 15.6 mi E of hwy. 5 by hwy 74, roadside, 1350 ft elev. 411 Comment
  POM254870  Ceanothus leucodermis W. Pequegnat 1940-4-13 s.n. Orange SW face, Modjeska Peak. Comment
Read comments
Oct 25 2011
  RSA21484  Ceanothus megacarpus E. R. Johnson 1936-3-16 8312 Orange Rancho Santa Ana, Santa Ana Canyon. So. of Ranch Buildings 122 Comment
  RSA708282  Ceanothus megacarpus Scott D. White, Jennifer H. Jones 2005-3-31 10855 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  UCR159779  Ceanothus megacarpus subsp. megacarpus Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh Comment
  RSA13145  Ceanothus oliganthus Percy C. Everett 1935-6-18 7202 Orange Main Divide Motorway 1.7 mi. N. of Los Pinos Potrero. 1128 Comment
  RSA25861  Ceanothus oliganthus Carl B. Wolf 1941-8-15 11158 Orange Along the Main Divide Motorway, just N. of head of Trabuco Truck Trail. 1220 Comment
  RSA95352  Ceanothus oliganthus F. W. Peirson 1923-5-6 3494 Orange Trail to Santiago Peak from Holy Jim Canyon. 991 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
  CAS-BOT-BC63563  Ceanothus oliganthus var. orcuttii Carl B. Wolf 1941-8-15 11157 Orange Santa Ana Mts. along main divide motorway just no. of head of Trabuco truck trail. 1219 Comment
  LA44933  Ceanothus palmeri W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  SEINET10634137  Ceanothus palmeri Greg Gust, Leith Nye 2005-3-12 Gust 563 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  UC2042146  Ceanothus papillosus R. F. Thorne and C. W. Tilforth, E. W. Lathrop 1977-4-27 49697 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  IRVC28204  Ceanothus papillosus subsp. roweanus A. C. Sanders, Mark A. Elvin 2005-9-2 31610 Orange Upper Holy Jim Canyon, a major tributary of Trabuco Cyn, along trail in the switchbacks. Santa Ana Mountains 970 Comment
  PASA2514  Ceanothus sorediatus Frank W. Peirson 1925-4-11 Orange Silverado Canyon, Santa Ana Mountains 914 Comment
  OBI6051  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
  UC1071388  Ceanothus spinosus A. E. Wieslander 1934-3-29 448 Orange San Juan Creek 304 Comment
  UCSB48024  Ceanothus spinosus Roberts, Fred 1981-4-11 Orange Santa Ana Mtns.: San Juan Canyon, hwy. 74, 3.7km E San Juan Guard Station 114 Comment
  PASA2518  Ceanothus tomentosus Frank W. Peirson 1922-5-19 Orange Small canyon heading eastward from the Santa Ana Canyon at 400 ft. Comment
  RSA588778  Ceanothus tomentosus subsp. olivaceus Fred M. Roberts 1990-4-13 4559 Orange Upper Maybe Canyon near SkylineDrive 0.2 km NE Oak Flat, 2.7 km SSE Sierra Peak. 841 Comment
  UCR130351  Celtis sinensis A. C. Sanders, Mark A. Elvin 2003-10-12 27326 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  IRVC27931  Celtis sinensis A. C. Sanders, Mark A. Elvin 2003-10-12 27326 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  RSA697730  Cenchrus spinifex J. Vlahos 1933-10-5 s.n. Orange Santa Ana River Bed by 17th St. bridge. Comment
  IRVC573  Centaurea melitensis A. Adams Orange Corona del Mar, Little Corona Beach. Newport Beach Comment
  UCR219809  Centaurea melitensis Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  RSA647885  Centaurea melitensis Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 35 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 243 Comment
  UCR103155  Centaurea repens Scott D. White 1997-3-26 4818 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
  RSA551  Centaurium venustum J. T. Howell 1927-6-2 15 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA788969  Centaurium venustum Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49576 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  UCR174185  Centaurium venustum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33020 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  CAS-BOT-BC288850  Centromadia parryi subsp. australis Carl B. Wolf 1932-6-28 3781 Orange Bryant Ranch, about middle of W boundary of 40-acre Valencia orange grove at Bryant Ave and Hansen Rd Comment
  SD133178  Centromadia parryi subsp. australis D. Bramlet 1990-11-3 2064 Orange West side upper Newport Back Bay, 50 meters northwest of the Delhi Channel. 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
  RSA698630  Cercocarpus betuloides Dorothy Sammis s.n. Orange Silverado Canyon Comment
  SD143756  Cercocarpus betuloides Scott D. White 1996-12-20 4637 Orange Santa Ana Mountains: Above Modjeska Canyon: Proposed water tank site. 424 Comment
  UCR221892  Cercocarpus betuloides Dick Newell, Don Millar 2010-10-15 40 Orange South Coast, San Joaquin Hills, Laguna Wilderness parkm on the Willow Trail 220 Comment
  CAS-BOT-BC142124  Cercocarpus betuloides var. betuloides E. R. Johnson 1929-4-11 1261 Orange Sierra Peak Trail, Santa Ana Mts. Comment
  RSA787496  Cercocarpus betuloides var. betuloides Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49704 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA688974  Cercocarpus minutiflorus Fred M. Roberts, David E. Bramlet 2003-4-10 5646 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
  CAS-BOT-BC279500  Chaenactis artemisiifolia L. R. Abrams 1901-6-15 1808 Orange Trabuco Canon [Canyon] 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
  RSA734852  Chaenactis glabriuscula A. C. Sanders, Mitch Provance 2008-5-20 35415 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  RSA731964  Chaenactis glabriuscula A. Sanders, Fred M. Roberts 2008-4-22 34989 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mi. NE of Rattlesnake Reservoir. 213 Comment
  RSA542427  Chaenactis glabriuscula var. glabriuscula Fred M. Roberts 1988-4-11 3901 Orange Lomas De Santiago; Loma Ridge, Upper Limestone Canyon, c.a. 3.2 km NNW Bolero Lookout Comment
  RSA598922  Chaenactis glabriuscula var. glabriuscula Scott D. White 1997-3-28 4852 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  SFV17359  Chaenactis glabriuscula var. glabriuscula J. N. Hogue, J. D. Dilley, D. L. Bishop 1998-4-9 103 .1 Orange Santa Ana Mountains San Juan Canyon at San Juan Hot Springs. Just inside western boundary of Cleveland National Forest. 213 Comment
  UC718397  Chaenactis glabriuscula var. glabriuscula P. C. Everett 1935-5-17 Orange 7/8 mi e of Atwood (s side of Santa Fe Railroad tracks) 152 Comment
  RSA600260  Chamaesyce albomarginata L. C. Wheeler 1947-5-4 6478 Orange 1/2 mi. southwest of Peralta Hills, at Jefferson St. and Santa Ana Canyon Rd. Comment
  POM2858  Chamaesyce polycarpa var. polycarpa D. L. Crawford s.n. Orange Aliso Pt. (Laguna Beach region) Comment
  IRVC844  Chamomilla suaveolens E. McRae 1965-4-8 Orange Costa Mesa 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
  UC582777  Chenopodium album P. A. Munz 1936-6-30 14175 Orange 5 mi s Garden Grove Comment
  RSA731952  Chenopodium ambrosioides Fred M. Roberts 2007-12-12 6706 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
  RSA798190  Chenopodium ambrosioides R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49589 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA734850  Chenopodium berlandieri A. C. Sanders, Mitch Provance 2008-5-20 35414 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  RSA751427  Chenopodium berlandieri A. C. Sanders, Fred M. Roberts 2008-7-3 35676 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor. 365 Comment
  UCR192993  Chenopodium berlandieri A. C. Sanders, Fred M. Roberts 2008-5-6 35218 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCR210369  Chenopodium berlandieri T. B. Salvato, Billy Deane 2006-10-16 1939 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  RSA747623  Chenopodium californicum Fred M. Roberts 2008-4-16 6909 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  UCSB21071  Chenopodium californicum Merrill, Roy 1965-4-11 Orange 11.5 miles on State Highway 74 east of 101, Santa Ana Mtns. 274 Comment
  UCR27598  Chenopodium macrospermum John C. Roos 1949-10-1 4681 Orange South Coast, Doheny Beach 0 Comment
  IRVC27496  Chenopodium murale Mark A. Elvin 2004-5-2 3403 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  OBI7967  Chenopodium murale Kurt R. Neisess 1975-12-19 s.n. Orange In Yorba Linda Comment
  RSA165143  Chenopodium murale Mark Parratt 1962-4-11 139 Orange Corona del Mar beach head. 4 Comment
  CLARK-A1528-976  Chenopodium rubrum Patricia A. Andrews 1975-6-26 5926 Orange Capistrano Bay Beach 9 Comment
  RSA86738  Chloris gayana F. W. Peirson 1926-9-26 7087 Orange Wintersburg. Comment
  RSA7043  Chlorogalum pomeridianum Carl B. Wolf 1932-7-2 3828 Orange Carbon Canyon, 0.5 mile above La Vida Springs. 244 Comment
  POM50446  Chorizanthe parryi var. fernandina Helen D. Geis 1902-1 541 Orange Near Santa Ana Comment
  RSA588983  Chorizanthe procumbens D. E. Bramlet 1994-6-2 2379 Orange San Joaquin Hills. On ridgeline north of Little Sycamore Canyon. The site is located 244m NE of Little Sycamore Canyon and 488m west of Laguna Cyn. Road. 165 Comment
  RSA749845  Chorizanthe procumbens D. Bramlet, Jim Harrison 2008-3-28 4132 Orange Bee Canyon. Bowerman landfill site.925 m S of the Bee Cyn. access road, 352 m W of the landfill entrance. Comment
  RSA690974  Chorizanthe staticoides Scott D. White, Michael Honer 2003-5-29 9423 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  RSA702986  Chorizanthe staticoides D. E. Bramlet, Fred Roberts 2003-5-1 3424 Orange Donna O'Neill Reserve. Drainage north of the North Ridge trail, 457m west of Cristianitos Rd. and 1.2km north of the E-W access road. 134 Comment
  SD134404  Chorizanthe staticoides Craig Reiser 1992-6-11 Orange Laguna Niguel, ridge NE of intersection of Crown Valley Parkway and Pacific Island Drive Comment
  IRVC22736  Chrysanthemum coronarium Fred M. Roberts 1985-5-13 1785 Orange South Laguna; Mouth of Aliso Canyon, 0.6km NW Aliso Peak, 6 Comment
  RSA682917  Chrysanthemum coronarium Scott D. White, Amanda Duchardt 2003-5-1 9168 Orange Santa Ana Mountain Foothills: Slopes above west side of Trampas Canyon. 107 Comment
  JEPS12327  Cicuta maculata var. bolanderi Lawrence M. Booth 1932-7-29 1333 Orange Newport Bay Comment
  CDA1068  Cirsium arvense Ahelfeld 1957-9-4 s.n. Orange 0 Comment
  RSA821  Cirsium occidentale var. californicum J. T. Howell 1927-6-26 212 Orange Claymine Canon near Sierra Peak. [canyon] 244 Comment
  UCSB48203  Cirsium occidentale var. californicum Roberts, Fred 1981-6-26 Orange Santa Ana Mtns.; San Juan Canyon, Lower San Juan Picnic Ground 392 Comment
  UCSB52870  Cirsium occidentale var. californicum Roberts, Fred; Allen, R. 1983-3-27 Orange Dana Point Headlands; north of Dana Strand Rd., 0.5 km. W Dana Point Harbor; 0.7 km. SSW Richard Henry Dana School 79 Comment
  RSA0054911  Cirsium occidentale var. coulteri Aileen Adams 1932-4-20 s.n. Orange Peter's Canyon. Comment
  RSA752816  Cirsium vulgare A. C. Sanders, Fred M. Roberts 2008-8-7 36000 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  UCR193012  Cirsium vulgare A. C. Sanders, Fred M. Roberts 2008-6-17 35459 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  RSA73302  Clarkia bottae F. W. Peirson 1924-5-31 4661 Orange Laguna Canyon, near Laguna Beach. 61 Comment
  UCR237809  Clarkia bottae Dick Newell, Don Millar 2012-6-5 267 Orange Peninsular Range; Santa Ana Mtns., Loma Ridge East, 0.35 mi. due east of Hicks Haul Rd. 411 Comment
  UCSB48213  Clarkia bottae Roberts, Fred 1981-5-3 Orange Santa Ana Mtns; Hot Springs Canyon; 1.1km NNE San Juan Guard Station; near base of San Juan Trail 264 Comment
  RSA797818  Claytonia perfoliata R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49807 Orange Santa Ana Mountains: Trabuco Canyon Comment
  CAS-BOT-BC439944  Claytonia perfoliata subsp. mexicana C. B. Wolf 1931-3-6 1853 Orange Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  HSC17683  Claytonia perfoliata subsp. mexicana J. W. Johnson 1961-4-2 Orange Newport Beach, along Upper Newport Bay. Comment
  RSA2076  Claytonia perfoliata subsp. mexicana C. B. Wolf 1931-3-6 1853 Orange Trabuco Canyon at Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  SD101082  Claytonia perfoliata subsp. mexicana John M. Miller 1978-3-18 709 Orange Santa Ana Mountains; San Juan Creek Canyon, 13.6 miles E of Hwy. 101 on Hwy. 74. 366 Comment
  RSA699297  Claytonia perfoliata subsp. perfoliata R. H. McArthur 1934-3-3 s.n. Orange Forks of Laguna Canyon Comment
  UC1618041  Clematis Donald G. Nelson 1935-4-6 248 Orange just s of boundary of Cleveland National Forest (e of San Juan Capistrano) Comment
  CAS-BOT-BC91328  Clematis lasiantha P. C. Everett 1935-6-18 7218 Orange Santa Ana Mountains, summit of Santiago Peak. 1731 Comment
  SBBG128687  Clematis lasiantha R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49689 Orange Sierra Peak; Santa Ana Mtns 900 Comment
  UCSB48083  Clematis pauciflora Roberts, Fred 1981-4-12 Orange Santa Ana; San Juan Canyon, Hwy 74 2.0km by road SW San Juan Guard Station; 2.7km SW Juan Rancho Survey Mark 210 Comment
  RSA66771  Cleome isomeris F. W. Peirson 1924-2-10 4529 Orange Balboa Beach, mainland near bridge Comment
  CAS-BOT-BC180992  Cneoridium dumosum Cecil Hart 1928-5-27 s.n. Orange Laguna Beach Comment
  RSA449088  Cneoridium dumosum Unspecified s.n. Orange Laguna Beach. Comment
  RSA564111  Collinsia heterophylla var. austromontana B. Pitzer, S. Hemstreet 1992-5-27 1954 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 mi. (airline) W of El Cariso Campground. 762 Comment
  UCR227635  Collinsia parryi Robt. L. Allen, Fred M. Roberts, Christopher M. Barnhill 2003-4-26 12365 Orange Santa Ana Mountains, San Juan Canyon, San Juan Loop Trail near Upper San Juan Campground 523 Comment
  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
  SD245358  Comarostaphylis diversifolia subsp. diversifolia R. R. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49607 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Base of bllluff with lower slope wet with seepage. Comment
  RSA751187  Conium maculatum A. C. Sanders, Fred M. Roberts 2008-6-17 35455 Orange Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  UCR193002  Conium maculatum A. C. Sanders, Fred M. Roberts 2008-6-17 35455 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  UCR73105  Conium maculatum Scott D. White 1992-9-23 861 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Canyon Road and east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Canyon 183 Comment
  RSA5966  Conium maculatum C. B. Wolf 1932-9-13 4039 Orange Bryant Ranch, No. boundary between San Gabriel River Flood Control Dike & Well in SE 1/4 sect. 25., 1300 ft W of n.E. corner of S.E. 1/4 Sect. 25. T4S R12W. 6 Comment
  RSA627781  Convolvulus arvensis Scott D. White 1998-3-24 6235 Orange University of California, Irvine Campus: Site of proposed Research Park. Southwest of main campus circle, ca. halfway between Beerkeley Avenue and new freeway (Bonita Canyon). 36 Comment
  RSA0127343  Convolvulus simulans Fred M. Roberts 2016-4-29 8046 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
  RSA748269  Conyza bonariensis A. C. Sanders, Fred M. Roberts 2008-6-17 35512 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA23577  Conyza bonariensis E. R. Johnson 1939-8-16 9535 Orange Santa Ana Canyon, Rancho Santa Ana, River bottom SW of Cypress Test Plot 122 Comment
  RSA831  Conyza bonariensis J. T. Howell 1927-9-24 755 Orange Santa Ana Botany Garden 152 Comment
  RSA788803  Conyza canadensis R. F. Thorne 1977-11-21 49983 -b Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  RSA835  Conyza canadensis J. T. Howell 1927-9-24 743 Orange Santa Ana Botany Garden 152 Comment
  IRVC15195  Conyza coulteri Karlin G. Marsh, Suzanne Watkins 1977-9-16 s.n. Orange Huntington Beach: Huntington Cental Park, Shipley Nature Center southern coastal Comment
  UCR179759  Conyza floribunda R. E. Riefner Jr. 2006-10-8 06- 481 Orange South Coast, Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Road 51 Comment
  UCR20628  Cordylanthus maritimus subsp. maritimus A. C. Sanders 1974-6-19 939 Orange Upper Newport Bay 3 Comment
  RSA753485  Corethrogyne filaginifolia A. C. Sanders, Fred M. Roberts 2008-9-18 36085 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  UCSB52401  Corethrogyne filaginifolia Roberts, Fred 1982-9-15 Orange Rancho Mission Viejo; Rte. 74, 6.6 km. by road ENE San Juan Capistrano; 0.9 km. Viejo Peak 93 Comment
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Jan 25 2020
  UCR224157  Corethrogyne filaginifolia var. virgata Fred M. Roberts 2008-7-10 7072 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 45 Comment
  UC1719426  Coronopus didymus D. Atwood 1993-3-26 17688 Orange Corona Del Mar State Park along Newport Coast Drive 0 Comment
  UCR100215  Coronopus didymus Scott D. White 1993-3-5 1112 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  UCR193622  Coronopus didymus A. C. Sanders, T. B. Salvato 2008-5-13 35374 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR195024  Cortaderia A. C. Sanders, Fred M. Roberts 2008-8-7 35978 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  POM4853  Cosmos bipinnatus D. L. Crawford 1916-5-10 s.n. Orange Laguna Mts. Comment
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Sep 13 2014
  CAS-BOT-BC287224  Cotula australis Ira L. Wiggins 1966-2-5 20423 Orange Fairgrounds, Costa Mesa Comment
  RSA696769  Cotula coronopifolia Elisabeth Norland 1929-4-11 s.n. Orange Cypress, Calif. Comment
  UCR96897  Cotula coronopifolia Scott D. White 1993-4-28 1287 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  UCSB44179  Cotula coronopifolia Hennema, J. 1977-5-21 Orange Newport Back Bay 6 Comment
  RSA697177  Cotyledon laxa Kenneth Beard 1934-05 s.n. Orange Ladd Canyon. Comment
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Dec 20 2019
  SD234933  Cotyledon orbiculata R. E. Riefner Jr. 2006-8-25 06 407 Orange South Coast: Dana Point Harbor Dr. at Ensenada Pl. 13 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
  UCR215312  Crassula connata Fred M. Roberts 2008-3-27 6803 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near NE gate, 0.5 km west of Marine Institute, Dana Point Harbor 75 Comment
  CAS-BOT-BC427773  Crassula connata Ira L. Wiggins 1966-3-5 20498 Orange Along Highway S-18, about 4.5 mi. E. of Laguna Beach. Comment
  RSA348  Crassula connata var. erectoides J. T. Howell 1928-2-7 s.n. Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA0093742  Cressa truxillensis Fred M. Roberts 2014-4-21 7848 Orange South Coast. SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin. 113 Comment
  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
  UCR208860  Cressa truxillensis var. vallicola L. C. Wheeler 1932-6-25 0864 Orange Coastal Plains and Basins; Los Angeles Basin region, Newport Bay 0 Comment
  UCD169755  Crocanthemum aldersonii R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49679 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  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
  UC537263  Croton californicus Lawrence M. Booth 1934-5-26 1123 Orange Newport Bay 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
  CDA35289  Croton californicus Mackessy & Pope 1957-6-27 Orange Santa Ana riverbed. 0 Comment
  CAS-BOT-BC189254  Cryptantha Mark A. Elvin 2003-1-26 2247 Orange Between core of UCI campus (E Peltason Dr) and Highway 73, NE side UC Irvine Open Space Preserve, Irvine, South Coast 1000 Comment
  RSA747713  Cryptantha clevelandii Fred M. Roberts 2008-3-19 6782 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 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
  RSA542657  Cryptantha intermedia Fred M. Roberts 1988-4-10 3902 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  UC1063976  Cryptantha intermedia A. Lewis 1934-3-1 386 Orange Borrego Canyon Corona Quad. 426 Comment
  PASA1983  Cryptantha intermedia Frank W. Peirson 1923-3-26 Orange Canada Salada. Near sea level Comment
  RSA683165  Cryptantha microstachys Scott D. White, Amanda Duchardt 2003-4-10 9013 Orange Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  RSA732085  Cryptantha microstachys A. C. Sanders, Fred M. Roberts 2008-3-25 34530 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  IRVC18320  Cucurbita foetidissima J. W. Johnson 1976-8-2 Orange Upper [Newport] Bay. Newport Beach Comment
  IRVC18322  Cucurbita foetidissima J. W. Johnson 1976-8-2 Orange Upper [Newport] Bay. Newport Beach Comment
  UCR191219  Cucurbita foetidissima A. C. Sanders 2008-4-29 35141 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCSB48207  Cucurbita foetidissima Roberts, Fred 1981-7-8 Orange Rancho Mission Viejo: Calif. Rte. 74, 5.2 km ENE San Juan Capistrano by road 100 Comment
  OBI19347  Cupressus arizonica Carl B. Wolf 1935-1-2 6279 Orange Santa Ana Mts, slopes of Sierra Peak, W of Claymine cyn along road to peak 671 Comment
  CAS-BOT-BC80568  Cupressus forbesii P. A. Munz; I. M. Johnston 1922-5-18 5566 Orange Santa Ana Mts. 457 Comment
  JEPS19314  Cupressus forbesii John Thomas Howell 1927-6-26 2607 Orange just to west Sierra Peak; Santa Ana Mts. 701 Comment
  POM17861  Cupressus forbesii Philip A. Munz 1923-7-8 7327 Orange Santa Ana River Canyon, 3 miles from county line. Comment
  RSA17652  Cupressus forbesii C. B. Wolf 1935-1-2 6279 Orange Slopes of Sierra Peak, west of Claymine Canyon, along road to Peak. 670 Comment
  RSA262123  Cupressus forbesii E. W. Lathrop 1976-11-17 7406 Orange 4 miles west of Corona in Gypsum Canyon. North slope of Sierra Peak. 609 Comment
  RSA7200  Cupressus forbesii B. D. Stark 1933-3-17 4532 -D Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  UCR113449  Cupressus forbesii R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 451 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 518 Comment
  SEINET905825  Cuscuta R. J. Barr 1967-1 67 -176 Orange East of el Toro, Santa Ana Mountains. 182 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
  RSA409706  Cuscuta californica George Price 1967-5-14 s.n. Orange Silverado Canyon Comment
  UC1543177  Cuscuta californica Donald G. Nelson 1936-7-9 437 Orange East Buena Park Comment
  POM18139  Cuscuta ceanothi P. A. Munz 1923-9-7 7760 Orange Along trail from Trabuco Canyon on to Santiago Peak. 1128 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
  SD51889  Cycloloma atriplicifolium Peter H. Raven 1961-10-15 16848 Orange Santa Ana River bed at Anaheim Street crossing, Anaheim. 60 Comment
  POM48696  Cycloloma atriplicifolium I. M. Johnston 1924-8-29 s.n. Orange Santa Ana River bed, between Aneheim and Santa Ana Comment
  RSA478739  Cycloloma atriplicifolium Joseph A. Ewan 1932-7-29 7729 Orange Santa Ana River near Costa Mesa. Comment
  CHSC106006  Cyclospermum leptophyllum Robt. Allen 2008-4-9 Orange Irvine Valley College, N of N entrance to Student Services building. UTM Zone 11S; 3726442N 0427963E. 45 Comment
  JEPS66891  Cylindropuntia prolifera L. M. Booth 1933-10-24 Orange Newport 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
  CAS-BOT-BC299754  Cynara cardunculus Le Roy Abrams 1901-6-1 1767 Orange Near Irvine Comment
  UCR193061  Cynara cardunculus A. C. Sanders, Fred M. Roberts 2008-6-17 35474 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, East Loma Ridge Spur Road near Hicks Cyn. Haul Rd. 353 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
  RSA797404  Cynara cardunculus subsp. flavescens Keith E. Hoffmaster 1933-10-8 s.n. Orange Near Newport Bay. Comment
  CDA23574  Cynodon dactylon L. D. Lyons, Mark A. Elvin 2006-9-23 422 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  RSA0028026  Cyperus eragrostis Fred M. Roberts 2012-9-6 7699 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  RSA594874  Cyperus erythrorhizos Fred M. Roberts, W. R. Ferren 1991-12-1 4829 Orange San Joaquin Hills: Laguna Canyon, Upper Laguna Lake, 3.5 kilometers N junction El Toro Road, 4.9 kilometers ENE Signal Peak. 113 Comment
  RSA697521  Cyperus esculentus Minor Warne 1934-5-13 s.n. Orange Talbert Drainage. Comment
  RSA125600  Cyperus esculentus Peter H. Raven 1957-9-28 11398 Orange 1.1 miles south of Orange County line on US Highway 101. Comment
  RSA5913  Cyperus laevigatus Carl B. Wolf 1932-7-2 3814 Orange Carbon Canyon, 1/8 mile below La Vida Springs [La Vida Mineral Springs]. 21 Comment
  JEPS64086  Cyperus niger L. M. Booth 1932-7-19 1287 Orange Bolsas Creek Comment
  POM201904  Cyperus niger var. castaneus L. M. Booth 1932-7-19 1287 Orange Bolsas Marsh. Comment
  RSA725964  Cyperus odoratus R. E. Riefner 2005-10-27 05 -728 Orange South Coast: Huntington Beach, Huntington Central Park near Goldenwest St. 1 Comment
  RSA794756  Cyperus odoratus Justin M. Wood 2010-9-29 2748 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  UCR168348  Cyrtomium falcatum R. E. Riefner Jr. 2000-7-10 20- 640 Orange South Coast, Newport Beach/Corona del Mar: end of Poppy Ave. off Pacific Coast Hwy 24 Comment
  CAS-BOT-BC402178  Datisca glomerata R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49563 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  RSA562811  Datisca glomerata Steve Boyd, Timothy S. Ross 1992-5-20 7483 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building). 350 Comment
  RSA603365  Datisca glomerata Scott D. White, B. Leatherman 1997-6-12 5341 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
  UCR261692  Datisca glomerata Dick Newell, Judy Booth 2014-5-15 379 Orange Peninsular Range; Santa Ana Mtns., Modjeska Canyon, 0.3 mi. east of Tucker Wildlife Sanctuary, 1.75 miles SSW of Flores Peak 434 Comment
  RSA359608  Datisca glomerata W. Wisura, L. Aberbom 1986-9-9 4138 Orange Lower San Juan Picnic area, Ortega Hwy. Comment
  RSA647957  Datura wrightii Mark Breidenbaugh, Caralisa Breidenbaush 1992-5-1 15 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  SBBG54066  Datura wrightii Townsend 1939-12-19 167 Orange lower Telegraph Cyn Comment
  RSA542444  Daucus pusillus Fred M. Roberts, Kathy Keane 1988-5-26 4004 Orange Rancho Mission Viejo: tributary to Trampas canyon, along Christianitos rd., 2.4 km ESE Viejo Survey mark. 128 Comment
  RSA699550  Daucus pusillus J. Vlahos 1934-04 s.n. Orange Lemon Heights Comment
  UCR223961  Daucus pusillus Fred M. Roberts 2008-4-9 6857 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Outlook 2, 0.7 km west of Marine Institute, Dana Point Harbor 52 Comment
  IRVC24747  Daucus pusillus Fred M. Roberts 1986-4-29 2819 Orange Turtle Rock, above corner of Ridgerout Dr. and Turtle Rock Dr., 1.1km SE French Hill, Irvine 141 Comment
  CAS-BOT-BC299323  Deinandra fasciculata C. B. Wolf 1932-7-2 3811 Orange Valencia Ave., Olinda opposite the Olinda Pilgrim Church 152 Comment
  HSC24274  Deinandra fasciculata James Henrickson 1970-7-24 5001 Orange 3 mi. NW of Huntington Beach near sandy 'Rabbit' Island in Bolsa Chica Salt Marsh near Inner Bolsa Bay 1 Comment
  IRVC29253  Deinandra fasciculata Kay Stockwell 1999-7-13 s.n. Orange Cannon Road (extension of Imperial Hwy) at Goldenrod St. Peralta Hills 152 Comment
  CAS-BOT-BC299325  Deinandra fasciculata Louis C. Wheeler 1932-6-25 861 Orange Bluff overlooking Newport Bay 7 Comment
  CAS-BOT-BC299326  Deinandra fasciculata Joseph Andorfer Ewan 1932-7-28 7695 Orange Newport Bay near power house Comment
  UCR224401  Deinandra kelloggii Robt. L. Allen, Linnell R. Allen 2008-7-27 s.n. Orange Santa Ana Mountains, Long Canyon Watershed, along Long Canyon Road, 136 m northwest of juntion with Ortega Hwy (SR74) 724 Comment
  OBI74758  Deinandra paniculata Unknown 2003-8-31 03 -337 Orange San Clemente State Beach, mima mound field in SW corner of park 27 Comment
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Feb 23 2018
  RSA0047639  Deinandra paniculata R. E. Riefner Jr. 2014-6-3 14 -143 Orange City of Laguna Beach, Moulton Meadows, NE 0.1 mi. from Del Mar Ave. and Balboa Ave. along Mentally Sensitive Trail 266 Comment
  RSA703199  Deinandra paniculata R. E. Riefner Jr. 2004-7-6 04 -302 Orange Upper Chiquita Canyon, vicinity of Oso Pkwy. and SR-241. 224 Comment
  UCR254221  Deinandra paniculata R. E. Riefner Jr. 2008-5-19 08- 100 Orange Ladera Ranch, Cecil Pasture at Jerome Road 157 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
  UCR231162  Delphinium cardinale Dick Newell, Judy Booth 2011-6-26 193 Orange Peninsular Range; Santa Ana Mtns., Long Canyon Rd., NW of Hwy 74, Cleveland National Forest 965 Comment
  UCR261690  Delphinium cardinale Dick Newell, Judy Booth 2014-6-22 381 Orange Peninsular Range; Santa Ana Mtns., Long Canyon Road, 0.2 mi. east of road to El Cariso Hotshot Camp 903 Comment
  UC1607980  Delphinium parryi Donald G. Nelson 1935-4-6 247 Orange just e of San Juan Capistrano (and just s of boundary of Cleveland National Forest, branching northward from the summer ranger station at main Hwy up San Juan Canyon); San Juan Canyon Comment
  RSA398525  Delphinium parryi N. C. Cooper 1944-6-4 1354 Orange San Juan Canyon, lower camp ground. 457 Comment
  CAS-BOT-BC121420  Delphinium parryi subsp. parryi P. C. Everett 1935-5-19 6871 Orange Santa Ana Mtns., Baker Canyon, West Ladd truck trail 304 Comment
  POM13827  Delphinium patens subsp. hepaticoideum P. A. Munz 1922-4-28 5042 Orange Leach Canyon, Santa Ana Mountains 671 Comment
  UCR252203  Dendromecon rigida Amanda C. Swanson 2013-4-21 25 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  RSA2091  Dendromecon rigida subsp. rigida Stark 1931-5-23 2229 Orange Santa Ana River Bottom; sw of Ranch houses; Rancho Santa Ana Comment
  RSA697422  Dentaria integrifolia R. H. McArthur 1934-3-3 62 Orange Forks of Laguna Canyon. Comment
  RSA697468  Descurainia pinnata Snow 1929-2-25 26 Orange E. of Stanton. Comment
  CAS-BOT-BC43187  Descurainia pinnata subsp. brachycarpa Helen D. Geis 1902-3-1 s.n. Orange Santa Ana River. Comment
  RSA0073654  Descurainia pinnata subsp. halictorum Fred M. Roberts 2010-3-12 7183 Orange Southeast Coast: Dana Point Headlands: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  IRVC1079  Descurainia pinnata subsp. menziesii J. Morgan 1965-4-27 Orange Elmore Ranch. San Clemente Comment
  POM369419  Descurainia pinnata subsp. menziesii Albert J. Perkins 1921-3-15 s.n Orange Garden, Santa Ana. Comment
  POM50330  Dicentra chrysantha L. R. Abrams 1901-06 1806 Orange Santiago Peak Trail. 915 Comment
  RSA588707  Dicentra chrysantha Fred M. Roberts, Carol A. Roberts 1990-5-23 4643 Orange West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5km SE Los Pinos Peak. 756 Comment
  HSC3006  Dichelostemma capitatum subsp. capitatum J. W. Johnson 1961-3-29 Orange Newport Beach Comment
  RSA33586  Dichelostemma capitatum subsp. capitatum N. C. Cooper 1944-6-4 1363 Orange Elsinore Mountain. 1067 Comment
  SEINET219060  Dichelostemma capitatum subsp. capitatum J. McNeill 1969-3-19 3017 Orange Aliso Canyon ca. 5 km. south of Laguna Beach. 10 Comment
  CAS-BOT-BC209073  Digitaria sanguinalis Ira L. Wiggins 1965-9-25 20252 Orange Curbway, S side of Dorothy Lane near interesection with Kroeger Avenue, Fullerton Comment
  CAS-BOT-BC209075  Digitaria sanguinalis Ira L. Wiggins 1965-9-26 20263 Orange In orange grove just south of Letters and Science Building, California State College at Fullerton. Comment
  UCSB52889  Digitaria sanguinalis Roberts, Fred 1984-10-18 Orange San Juan Cyn, Santa Ana Mtns; 2.6 km ENE of San Juan Guard Stn, 4.0 km WNW Sitton Peak 345 Comment
  SD251157  Diplachne fusca var. fascicularis Justin M. Wood 2010-9-29 2740 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. (Black Star Canyon ) 128 Comment
  SD139996  Diplacus aurantiacus B. Pitzer, S. Hemstreet 1992-5-27 1962 Orange Cleveland National Forest, Along road (3S04) to Blue Jay Campground, off State Hwy 74 (Ortega Hwy). Ca. 2 mi. (airline) W of El Cariso Campground 762 Comment
  CAS-BOT-BC150283  Diplacus longiflorus B. Pitzer 1996-4-30 2801 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (=Pacific Coast Hwy.) 15 Comment
  RSA0045518  Diplacus longiflorus Kenneth Beard 1934-04 s.n. Orange Mts. along Ortega Highway; north of San Juan Hot Springs. CP5. Comment
  SBBG28885  Diplacus puniceus N. C. Cooper 1944-6-4 1321 Orange Elsinore Mtn, Lookout at top 1066 Comment
  SDSU2450  Diplotaxis muralis D. F. Howe 1977-5-23 4951 Orange Corner of Empire & Broadway, Anaheim. Comment
  CDA3675  Diplotaxis tenuifolia R. K. Bishop Nov 1937 Orange 1 1/2 mile northwest of Orange - railroad right-of-way. 0 Comment
  CAS-BOT-BC43566  Diplotaxis tenuifolia I. M. Johnston 1918-5-4 1927 Orange Santa Ana. Comment
  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
  RSA735749  Distichlis spicata A. C. Sanders, Fred M. Roberts 2008-6-17 35495 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  UCR158165  Distichlis spicata Adrian Wolf 1998-5-27 338 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  UC2062535  Distichlis spicata subsp. spicata Hester L. Bell with Anna L. Bell 2002-5-1 259 Orange Shellmaker Road in Lower Newport Bay, near Shellmaker Island and Upper Newport Bay Reserve. Comment
  RSA699993  Dodecatheon clevelandii L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA678732  Dodecatheon clevelandii subsp. clevelandii Fred M. Roberts, Laura Cohen 2000-3-24 5269 Orange Rancho Mission Veijo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 Comment
  CAS-BOT-BC41701  Draba cuneifolia var. sonorae Helen D. Geis 1902-3-29 s.n. Orange Santa Ana River. Comment
  RSA701656  Drymocallis glandulosa Keith E. Hoffmaster 1935-5-5 s.n. Orange San Juan Canyon., Santa Ana Mts. Comment
  UCR250855  Drymocallis glandulosa Dick Newell, Don Millar 2014-3-11 358 Orange South Coast, San Joaquin Hills, Laguna Canyon, Upper Laurel Canyon Trail, 0.24 mi. SE of 73 toll road over-crossing 207 Comment
  CAS-BOT-BC70835  Dryopteris arguta Ira L. Wiggins 1966-2-4 20410 Orange Trabuco Canyon, about 1/2 mi. above end of open road Comment
  IRVC22504  Dryopteris arguta Fred M. Roberts 1985-5-1 1698 Orange Aliso Canyon, 2.1km NNE Aliso Peak, Aliso Viejo 67 Comment
  SEINET9625424 Image available Dryopteris arguta M. D. Windham 1998-3-31 98 -091 Orange Along tributary of Hot Spring Canyon in the Santa Ana Mts. ca. 3.01 km SE of Crow Spring. Cleveland N.F. Canada Gobernadora Quad ( 7 1/2 min. ). 320 Comment
  RSA791466  Dryopteris arguta Keith E. Hoffmaster 1928-5-29 36 Orange San Onofre. Comment
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Nov 19 2013
  POM265679  Dudleya lanceolata J. C. Roos 1937-5-21 2338 Orange Lemon Heights, near Santa Ana Comment
  UC933289  Dudleya lanceolata Reid Moran 1948-6-23 3094 Orange s side Aliso Canyon; Laguna Beach Comment
  UCR193586  Dudleya lanceolata A. C. Sanders, T. B. Salvato 2008-5-13 35385 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
  IRVC27013  Dudleya multicaulis Peter A. Bowler 2003-4-20 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh. Southern Coastal 9 Comment
  RSA660284  Dudleya multicaulis Orlando Mistretta 1992-6-6 415 Orange Vicinity of Sierra Peak, (Historical locality), on old roadcut heading down to powerlines 695 Comment
  UC2059978  Dudleya multicaulis K. Nakai 1981-6-4 774 Orange 0.3 mi E of Laguna Canyon Road on El Toro Road. Comment
  UCR52607  Dudleya multicaulis Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Canyon, head of Gypsum Canyon, along roadbanks 412 Comment
  RSA345  Dudleya pulverulenta J. T. Howell 1927-7-16 416 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC417040  Dudleya pulverulenta John Thomas Howell 1927-7-26 2840 Orange SE fork of Claymine Canyon, N. Santa Ana Mts. 304 Comment
  CAS-BOT-BC109746  Dudleya stolonifera Reid Moran 1977-6-13 24230 Orange Willow Canyon, tributary of Laguna Canyon. 125 Comment
  SEINET3089344  Dudleya stolonifera Reid Moran 1977-1 Orange Comment
  CAS-BOT-BC109743  Dudleya stolonifera R. V. Moran 1949-7-2 3286 Orange 1.7 mile below Toro Road Junction, -1.5 mile above canyon mouth. Laguna Canyon. 243 Comment
  UC115218  Dudleya viscida J. C. Nevin Oct 1881 Orange San Juan Comment
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Sep 1 2006
  UCSB48031  Dudleya viscida Roberts, Fred 1980-7-7 Orange Santa Ana Mtns.; San Juan Canyon, Hwy. 74, 2.3 km. ENE San Juan Guard Station; 0.4 km. W of Bench Mark 1100 315 Comment
  CAS-BOT-BC197028  Echinochloa colona Ira L. Wiggins 1965-11-5 20320 Orange Near corner or Dowling Street and Crowther Avenue, 1/2 mile S of Placentia Comment
  CAS-BOT-BC197179  Echinochloa crus-galli John Thomas Howell 1927-7-18 2793 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  IRVC27752  Echinochloa crus-galli Mark A. Elvin 2004-5-2 3426 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  UCSB47944  Echinochloa crus-galli Roberts, D. 1980-5-4 Orange Camino Capistrano Rd below bridge (Crown Valley Pkwy) 30 Comment
  RSA713568  Echinochloa crus-galli R. E. Riefner Jr. 2005-7-9 5 -552 Orange City of Huntington Beach, Huntington Central Park, Goldenwest St. near Slater Ave. 2 Comment
  RSA697609  Echinocystis macrocarpa Effie Jessup s.n. Orange Arch Beach Hills Comment
  CAS-BOT-BC445606  Echinodorus berteroi R. E. Riefner 2000-8-21 20 -728 Orange Santa Ana Mtns.: Irvine Lake [Santiago Reservoir], first cove east of the dam. 238 Comment
  SBBG104111  Ehrendorferia chrysantha B. Pitzer, S. Hemstreet 1992-5-21 1948 Orange St Hwy 74, 1 mi uphill from the 2000 ft marker, and on left ca. 1 mi on old paved Rd 762 Comment
  RSA588991  Ehrharta calycina D. E. Bramlet 1994-6-2 2382 Orange San Joaquin Hills. Emerald Canyon 4.4 kilometers north of Pacific Coast Highway.. Laguna Beach 75 USGS Quad: 37 16 180m N X 4 27 820m E. 226 Comment
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Sep 8 2018
  RSA731651  Ehrharta erecta Fred M. Roberts 2007-10-29 6628 Orange Laguna Beach: Temple Hill, Nyes Place, c.a. 0.2 km S Moulton Meadows Park. 232 Comment
  UC217855  Eleocharis macrostachya P. A. Munz 1922-9-2 6354 Orange Laguna Canyon, ponds in 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
  RSA798192  Eleocharis montevidensis var. parishii Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49571 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  POM12446  Eleocharis palustris Phillip A. Munz 1922-9-2 6354 Orange Ponds in Laguna Canyon 46 Comment
  POM1361  Eleocharis palustris Phillip A. Munz 1918-5-4 2210 Orange Laguna Beach. Comment
  UCR247917  Eleocharis palustris Fred M. Roberts 2012-7-18 7674 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill 37 Comment
  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
  RSA748263  Elymus X gouldii A. C. Sanders, Mitch Provance 2008-5-20 35396 Orange 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
  RSA699894  Elymus glaucus Fred M. Roberts 2003-5-1 5687 Orange Rancho Mission Viejo: Donna o'Neill Land Conservancy, Cristianitos Cyn., 0.56km SSw. Gato Gate and 0.21km W of Cristianitos Rd. 96 Comment
  UC537289  Elymus glaucus Lawrence M. Booth 1932-6-7 1156 Orange Newport Lagoon; Sidehill Comment
  POM50709  Elymus glaucus subsp. glaucus Le Roy Abrams 1901-06 1822 Orange Santiago Peak Trail 915 Comment
  RSA629046  Elymus glaucus subsp. glaucus Valerie L. Soza, LeRoy Gross 1999-6-10 526 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road. 1554 Comment
  RSA539340  Elymus multisetus Fred M. Roberts, Carol A. Roberts 1988-6-9 4078 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit., 3730500mN, 449000mE 1542 Comment
  RSA65  Elymus multisetus J. T. Howell 1927-6-8 53 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA594897  Emmenanthe penduliflora Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4910 Orange Santa Ana Mtns: San Juan Canyon, south side of California, route 74, 1.7kim WSW lower San Juan Picnic Ground. 354 Comment
  RSA0127347  Emmenanthe penduliflora var. penduliflora Fred M. Roberts 2016-4-29 8050 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
  CAS-BOT-BC131231  Encelia californica R. K. Brummitt 1998-5-23 19990 Orange Newport Beach, by marina 10 Comment
  POM48553  Encelia californica F. M. Reed 1925-5-14 4985 Orange Aliso Canon. Comment
  UCD150948  Encelia californica D. S. Park 2010-4-25 33 Orange Whiting Ranch Wilderness Park. Abundant near entrance/parking lot. 246 Comment
  UCSB44180  Encelia californica Henneman, J. 1977-5-21 Orange Newport Back Bay Comment
  IRVC1246  Ephedra californica J. Morgan 1965-4-3 s.n. Orange San Joaquin Hills, Laguna Canyon. Southern Coastal Comment
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Jan 9 2018
  CAS-BOT-BC166347  Epilobium canum subsp. canum Edgar A. Mearns 1894-6-25 4081 Orange San Clemente Island Comment
  CAS-BOT-BC166350  Epilobium canum subsp. canum John Thomas Howell 1927-7-26 2842 Orange SE. fork of Claymine [Canon] Canyon, n. Santa Ana Mts. 304 Comment
  RSA0027427  Epilobium canum subsp. canum Fred M. Roberts 2013-7-18 7660 Orange San Joaquin Hills: Newport Beach, Buck Gully, along Buck Gully Trail, about 0.7 km from the north terminus of Poppy Street and 1.8 km WNW summit of Pelican Hill. 52 Comment
  RSA542492  Epilobium canum subsp. latifolium Fred M. Roberts, Richard E. Riefner 1988-7-19 4119 Orange Santa Ana Mountains: Modjeska Peak, west slope, 1.1 km SW summit 1524 Comment
  POM201878  Epilobium ciliatum subsp. ciliatum L. M. Booth 1932-6-4 1145 Orange Newport Lagoon. Comment
  RSA495  Epilobium ciliatum subsp. ciliatum J. T. Howell 1927-10-29 776 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA666103  Epilobium pygmaeum Fred M. Roberts, Michelle Lee 2001-6-4 5487 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. (Canada Gobernadora. 226 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
  RSA790023  Equisetum arvense R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49566 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  IRVC1250  Equisetum hyemale subsp. affine L. Burns 1965-4-21 Orange Balboa Peninsula. Newport Beach Comment
  UCR174026  Equisetum laevigatum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33050 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  CAS-BOT-BC57387  Equisetum laevigatum Helen D. Geis 1902-11-1 s.n. Orange Santa Ana Comment
  POM21175  Eragrostis cilianensis Helen D. Geis 1902-6-6 s.n. Orange Roadside by Orange bridge. Comment
  UCD62942  Eragrostis cilianensis Beecher Crampton 1971-6-9 8723 Orange UC South Coast Field Station, east of Irvine. Comment
  RSA421545  Eremocarpus setiger Albert J. Perkins 1909-7-4 s.n. Orange Laguna Beach. Comment
  RSA697579  Eremocarpus setiger J. Vlahos 1933-1 s.n. Orange Blackstar Canyon. Comment
  RSA697580  Eremocarpus setiger Minor Warne 1934-5-19 s.n. Orange Roadside Forks Trabuco and El Toro Rd. Comment
  CAS-BOT-BC187932  Eriastrum densifolium subsp. sanctorum John Thomas Howell 1927-8-13 2985 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  UC52799  Eriastrum sapphirinum W. C. Blasdale June 1891 Orange Santiago Canyon Comment
  UCR193057  Eriastrum sapphirinum A. C. Sanders, Fred M. Roberts 2008-6-17 35505 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  UCR208079  Eriastrum sapphirinum subsp. dasyanthum M. B. Dunkle 1938-6-23 5380 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon Comment
  RSA0121307  Eriastrum sapphirinum subsp. dasyanthum J. T. Howell 1927-6-1 9 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA0121312  Eriastrum sapphirinum subsp. dasyanthum W. Pequegnat 1940-6-15 s.n. Orange Santa Ana Mountains: Modjeska Flat. 1372 Comment
  SD95145  Ericameria pachylepis Jack Reveal 1973-12-4 Orange On ridge between east and west forks of Ladd Canyon; 1.75 miles northeast of Mustang Spring. 650 Comment
  RSA699268  Ericameria palmeri J. Vlahos 1933-10-5 s.n. Orange French Hill. 5 mi. east of airport. Comment
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Jan 29 2015
  POM201508  Ericameria palmeri var. pachylepis L. M. Booth 811 Orange Santa Ana Canyon Comment
  POM201792  Ericameria palmeri var. pachylepis L. M. Booth s.n. Orange Newport Beach 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
  RSA151083  Ericameria palmeri var. pachylepis Peter H. Raven 1961-10-15 16854 Orange Santa Ana Canyon just W of Hwy 55, at W end of Peralta Hills 137 Comment
  RSA16664  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  UC536889  Ericameria palmeri var. pachylepis L. M. Booth Orange Newport Beach Comment
  UCR239618  Ericameria palmeri var. pachylepis Fred M. Roberts 2012-4-27 7537 Orange Lomas de Santiago, Loma Ridge, west of SR 241, tributary to 'Las Flores' Canyon, 1.9 km southwest of Irvine Lake Park Campground and 1.2 km east-souteast of Orange County Emergency Operations Center, Hill 1311 350 Comment
  UCR45136  Ericameria palmeri var. pachylepis B. G. Pitzer, L. F. LaPre 1986-10-20 s.n. Orange Santa Ana Mtns, Summit of Hicks Canyon on a private road (continuation of Jeffrey Road), c. 2.4 mi. above the gun club 274 Comment
  POM18133  Ericameria parishii P. A. Munz 1923-9-7 7767 Orange Santa Ana Mts, from Trabuco Canyon to Santiago Peak 915 Comment
  UCR247539  Ericameria parishii Dick Newell, Judy Booth 2013-10-6 340 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, North Main Divide Road at junction with Long Canyon Road 1032 Comment
  IRVC18682  Ericameria parishii var. parishii Karlin G. Marsh 1981-5-2 Orange N slope of Bald Peak. Santa Ana Mountains Comment
  UC284875  Ericameria parishii var. parishii P. A. Munz 1923-9-7 7767 Orange from Trabuco Canyon to Santiago Peak; Santa Ana Mts 914 Comment
  HSC25252  Ericameria pinifolia Richard Spjut 1972-2-21 2213 Orange Along Hwy. 74 in the Cleveland National Forest, Santa Ana Mtns. 610 Comment
  CAS-BOT-BC33457  Erigeron foliosus var. foliosus LeRoy Abrams 1901-6-16 1801 Orange Trabucco Canyon Comment
  RSA68305  Erigeron foliosus var. stenophyllus G. R. Campbell 1951-5-30 16097 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest 152 Comment
  UCR241046  Erigeron karvinskianus Robert DeRuff 2011-6-20 345 B Orange South Coast, Upper Newport Bay, along bay side of Back Bay Dr. below Eastbluff North 3 Comment
  UCSB49524  Eriodictyon crassifolium Jenkins, Scott 1983-3-4 Orange 2 miles up Modjeska Canyon Rd. on west side 243 Comment
  CAS-BOT-BC241888  Eriogonum cinereum Peter A. Bowler 2003-4-20 s.n. Orange Southern Coastal: UCI Arboretum 15 Comment
  RSA450871  Eriogonum cinereum Fred M. Roberts 1985-7-22 2058 Orange Irvine: MacArthur Blvd., 0.2km N Bonita Canyon Rd.; 1.6 km W UC Irvine campus. 15 Comment
  POM201864  Eriogonum elongatum L. M. Booth 1933-8-26 1387 Orange Newport Lagoon. Comment
  RSA0027780  Eriogonum fasciculatum R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49677 -a Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] 457 Comment
  CAS-BOT-BC253218  Eriogonum fasciculatum var. fasciculatum Joseph Andorfer Ewan 1932-7-28 7705 Orange Corona del Mar Comment
  RSA688981  Eriogonum fasciculatum var. fasciculatum Fred M. Roberts, D. E. Bramlet 2003-4-10 5639 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
  SEINET253237  Eriogonum fasciculatum var. fasciculatum Lawrence M. Booth 1932-7-27 1326 Orange Corona del Mar, Newport Beach, Ocean Bluff. Comment
  UCD105101  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-BC249944  Eriogonum fasciculatum var. foliolosum John Thomas Howell 1927-7-24 2835 Orange Santa Ana Canyon 152 Comment
  UCR131885  Eriogonum fasciculatum var. foliolosum J. Mallory, V. McCoy 1995-7-3 6454- 98 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
  UCSB48226  Eriogonum fasciculatum var. foliolosum Roberts, Fred 1981-6-25 Orange Dana Point: On Point, 0.6km W Dana Point Harbor 73 Comment
  UCD100011  Eriogonum fasciculatum var. foliolosum G. H. Vansell 1933-6-30 s.n. Orange Orange County. Comment
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Sep 26 2020
  RSA698425  Eriogonum fasciculatum var. polifolium Stephen Bruff s.n. Orange Lakeview. Comment
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Aug 25 2012
  RSA230  Eriogonum gracile var. gracile J. T. Howell 1927-7-24 471 Orange Claymine Canyon near Sierra Peak. 183 Comment
  RSA393245  Eriogonum gracile var. gracile J. T. Howell 1927-7-16 2781 Orange Hills on N side of Santa Ana Canyon. 152 Comment
  RSA761926  Eriogonum saxatile Robt. Allen 2003-6-22 12371 Orange Modjeska Peak, southwestern arm, 0.6 air miles southwest of the summit. 1513 Comment
  UC1618033  Eriogonum thurberi Donald G. Nelson 1935-6-2 365 Orange n. Brea (mouth of Brea Canyon, on Tonner lease); Brea Canyon, Tonner lease Comment
  CAS-BOT-BC297329  Eriophyllum confertiflorum John Thomas Howell 1927-6-26 2592 Orange Claymine Canon, N Santa Ana Mts 243 Comment
  POM357960  Eriophyllum confertiflorum E. A. McGregor 1966-5-15 s.n. Orange Ortega Highway, between Lake Elsinore and San Juan Capistrano. Comment
  POM357962  Eriophyllum confertiflorum Norman C. Cooper 1949-5-1 3935 Orange San Juan Canyon 610 Comment
  RSA850  Eriophyllum confertiflorum J. T. Howell 1927-6-26 211 Orange Claymine Canon near Sierra Peak. [canyon] 244 Comment
  UCR192113  Eriophyllum confertiflorum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35316 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR252207  Eriophyllum confertiflorum Amanda C. Swanson 2013-4-21 23 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  UCR49768  Eriophyllum confertiflorum B. G. Pitzer 1987-4-24 0504 Orange Santa Ana Mtns, Santa Ana River at Gypsum Canyon, c. 0.5 mi. north of Hwy 91. 113 Comment
  IRVC15150  Eriophyllum confertiflorum var. confertiflorum A. S. Boughey 1968-7-9 380403 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  LA203539  Eriophyllum confertiflorum var. confertiflorum W. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  UC1294014  Eriophyllum confertiflorum var. confertiflorum E. K. Balls 1958-6-27 23286 Orange Santiago-Mojeska Saddle Santa Ana Mts., Santiago-Mojeska Saddle 1463 Comment
  RSA653187  Erodium cicutarium David Barrios 1991-5-1 6 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle. 366 Comment
  RSA732076  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
  UCD103257  Erodium cicutarium C. L. Hitchcock 1966-3-15 24138 Orange 1/2 mile e. of Brea. Comment
  RSA734609  Erodium moschatum Keith E. Hoffmaster 1927-2-19 413 Orange Santa Ana. Comment
  RSA125659  Erodium moschatum R. Weatherby 1950-2-25 1031 Orange Near El Toro, east side of Orange County. Santa Ana Mts. 305 Comment
  UCSB48066  Erodium moschatum Fritzke, Sue; Roberts, Fred 1982-4-2 Orange LAGUNA NIGUEL: hills; 3.5km ESE Aliso Peak; 3.2km ESE Alicia Fire Station; N of Del Avion 30 Comment
  RSA800022  Eryngium aristulatum var. parishii Justin M. Wood 2011-6-28 4301 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. Just W of parking area. 25 Comment
  CAS-BOT-BC41525  Erysimum capitatum Helen D. Geis 1902-1-1 528 Orange Santiago Creek. Comment
  JEPS53573  Erysimum capitatum var. capitatum Alice Mary King Feb. 1908 Orange Santiago Creek Santa Ana Mts. Comment
  SD77331  Erythranthe guttata F. W. Pennell, Carl Epling 1940-4-21 25152 Orange wet stream sides, Route 74, 5 miles east of San Luis Capistrano 60 Comment
  UCR210363  Erythrina T. B. Salvato, Billy Deane 2006-10-16 1926 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  RSA722438  Eschscholzia californica Minor Warne 1934-03 s.n. Orange Laguna Canyon Forks Comment
  UCR191364  Eschscholzia californica A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34625 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
  UCR192107  Eschscholzia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35308 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR192999  Eschscholzia californica A. C. Sanders, T. B. Salvato 2008-5-13 35379 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
  SEINET7879573 Image available Eschscholzia californica Cathy Coulson 1959-1 s.n. Orange Anaheim, Orange County, California, N. E. corner of front yard, 2454 W. Broadway. Comment
  UC1608074  Eucalyptus amplifolia Dave Goodward 1987-4-16 5 Orange e. Tustin (1 mi. n.e. of Irvine Blvd./Myford Rd. intersection, Boy Scout Camp in Peters Canyon, Irvine Ranch, s. of tree 4 by 3 trees); Irvine Ranch, Peters Canyon, Boy Scout Camp 121 Comment
  SD175834  Eucalyptus camaldulensis D. G. Kelch 2006-12-9 06 555 Orange Irvine. University Dr. along tidal creek, just east of I-73. Comment
  SEINET6692539 Image available Eucalyptus camaldulensis var. camaldulensis A. C. Sanders, T. B. Salvato 2008-1 35370 Orange Peninsular Range; Santa Ana Mountains; Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  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
  UCR52579  Eucalyptus torquata K. Kimberly 1988-5-29 20 Orange Cleveland National Forest, on S-18 roadside, 2 mi SW of Irvine Lake Comment
  UCR192463  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-3-25 34531 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  JEPS1720  Eucrypta chrysanthemifolia var. chrysanthemifolia L. M. Booth 1932-5-19 1063 Orange Newport Bay Comment
  RSA657747  Eucrypta chrysanthemifolia var. chrysanthemifolia Ken Greby 1985-4-18 11 Orange alongside Laguna Canyon Rd. 100 m. N of L. C. R., 2.5 km. NE of El Toro Rd. 53 Comment
  UC592180  Eucrypta chrysanthemifolia var. chrysanthemifolia H. L. Mason 1926-4-25 2912 Orange 5 mi s Laguna Beach Comment
  UCR86018  Euphorbia Scott D. White 1992-11-24 974 Orange Vicintiy of Brea, immediately north of Carbon Canyon Road & east of Placentia Ave. 1 mi (airline) S/SE of Tonner Canyon. 183 Comment
  SD211599  Euphorbia Louis C. Wheeler 1946-8-8 6225 Orange Imperial Highway 1/4 mile West of Caroline Avenue, 2 miles East-Southeast of Brea Comment
  UCD142560  Euphorbia albomarginata Ira L. Wiggins 1965-11-5 20323 Orange Near corner of Downling St. and Crowther Ave.; 1/2 mi. S of Placentia. Comment
  CAS-BOT-BC202545  Euphorbia misella Joseph Andorfer Ewan 1932-7-28 7708 Orange Corona del Mar Comment
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Oct 29 2020
  RSA432423  Euphorbia misera Albert J. Perkins 1917-3-10 s.n. Orange Aliso Canyon Comment
  RSA70613  Euphorbia misera F. W. Peirson 1919-11-8 2041 Orange South of Arch Beach, near Laguna Beach Comment
  UCR222625  Euphorbia misera T. B. Salvato 2010-10-27 5106 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
  UCD142717  Euphorbia polycarpa C. L. Hitchcock 1966-3-15 24140 Orange Stearns Lease, 1.5 miles east of Brea. Comment
  UCR221457  Euthamia occidentalis Dick Newell, Don Millar 2010-10-15 46 Orange South Coast, Back Bay Drive, city of Newport Beach, 0.7 mi. due west of Jamboree Rd. 3 Comment
  UCSB52990  Euthamia occidentalis Roberts, Jr., Fred 1983-9-29 Orange Irvine; San Joaquin Freshwater Marsh, 1.9 km. NNW UCI campus center 2 Comment
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Dec 12 2018
  RSA942  Euthamia occidentalis J. T. Howell 1927-10-22 765 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  CLARK-A1528-4649  Festuca californica John C. Roos 1930-5-20 3237 Orange Capistrano Beach Comment
  UCR267214  Festuca octoflora var. octoflora Fred M. Roberts, Lee Ann Caranza & Eliza Maher 2009-4-7 7145 Orange South Coast Region, DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor 50 Comment
  CAS-BOT-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-BC414247  Ficus rubiginosa R. E. Riefner, Jr. 2011-8-25 11 -119 Orange City of Laguna Beach, Aliso Creek Park, rocky and bluff between Aliso Beach Park and West St. 7 Comment
  RSA649064  Filago arizonica D. E. Bramlet 2000-4-17 2986 Orange West of Blind Cyn. and North of Irvine Park. The site is 1.9 km west of Blind Canyon and 366m north of Irvine Park. This locality is 31m southwest of the MWD access road. 268 Comment
  UCR192469  Filago californica A. C. Sanders, Fred M. Roberts 2008-3-25 34537 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA542429  Filago gallica Bill O'Connell 1991-5-31 5 Orange San Joaquin Hills: Pelican Hill, west side 190 Comment
  RSA542432  Filago gallica Fred M. Roberts 1988-4-10 3909 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  RSA542430  Filago gallica Fred M. Roberts, K. Keane 1988-5-25 3978 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Marker. 85 Comment
  IRVC3699  Foeniculum vulgare L. McCabe 1965-5-8 Orange Corona del Mar]: Corona Highlands. [Newport Beach Comment
  RSA759156  Foeniculum vulgare A. C. Sanders, Fred M. Roberts 2008-6-17 35458 Orange Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  SD119374  Frangula californica subsp. californica Reid Moran 1975-11-21 22740 Orange in bottom of Trabuca Canyon, Santa Ana Mountains 399 Comment
  LA207696  Frangula californica subsp. cuspidata C. B. Wolf; 1933-8-24 5391 Orange Santa Ana Mountains, summit of Santiago Peak 1731 Comment
  RSA144566  Frankenia grandifolia Peter H. Raven 1958-6-5 13563 Orange Just north of Surfside Comment
  RSA391401  Frankenia grandifolia Joseph A. Ewan 1932-7-28 7701 Orange Corona Del Mar Comment
  RSA477  Frankenia grandifolia J. T. Howell 1927-6-30 248 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA539403  Frankenia salina Fred M. Roberts Jr., Karen Swirsky 1988-6-28 4106 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 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
  RSA716728  Fraxinus Fred M. Roberts 2005-5-13 6186 Orange San Juan Capistrano; Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  RSA464916  Fraxinus dipetala Albert J. Perkins 1923-6-24 s.n. Orange Silverado Canyon Comment
  UCR174224  Fraxinus pennsylvanica subsp. velutina A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33043 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
  CHSC27882  Fremontodendron mexicanum Mike Cecchini 1978-3-23 2 Orange Ca. .5 km ne of Tucker Wildlife Sanctuary and 1 km se of Modjeska Reservoir, 20.5 km se of Tustin. 450 Comment
  RSA659637  Fremontodendron mexicanum T. A. Daubert 1991-5-19 658 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island. Comment
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Mar 12 2020
  RSA749449  Fritillaria biflora Fred M. Roberts 2009-4-11 6885 Orange Lomas de Santiago: Loma Ridge, upper Dripping Springs Cyn., 0.9 km NE Bee Peak and 1.2 km WNW Dripping Springs. 448 Comment
  RSA652106  Fumaria officinalis Phil Goodwin 1948-2-6 s.n. Orange Found in an orchard 3 miles east of Orange. 122 Comment
  CHSC106536  Funastrum cynanchoides var. hartwegii Robt. Allen; Alison Linden 2007-5-17 Orange Irvine, Turtle Rock community, Chaparral Park, due N of Turtle Rock Dr, due E of Highgate terrace. UTM Zone 11S; 3722013N 0424400E. 136 Comment
  RSA647961  Galium angustifolium Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 28 Orange 1/2 mile south of Chino Hills State Park. 168 Comment
  RSA682913  Galium angustifolium Scott D. White, Amanda Duchardt 2003-5-1 9163 Orange Santa Ana Mountain Foothills: Slopes above west side of Trampas Canyon. 107 Comment
  SD143727  Galium angustifolium Scott D. White 1997-3-28 4850 Orange Santa Ana Mts; above Modjeska Canyon: Proposed water tank site 424 Comment
  SEINET269587  Galium angustifolium O. F. Clarke 1994-6-17 Orange Laguna Canyon. Comment
  SBBG119147  Galium angustifolium R. G. Marushia 2004-4-16 18 Orange El Moro Cyn, Crystal Cove State Park, Laguna Beach, S of No Name Ridge Rd in park, downhill from pullout and below closed road to park entrance 61 Comment
  JEPS7862  Galium angustifolium subsp. angustifolium Lawrence M. Booth 1932-7-4 1241 Orange Newport Bay Comment
  RSA631403  Galium angustifolium subsp. angustifolium Valerie L. Soza, LeRoy Gross 1999-6-7 490 b Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA632422  Galium angustifolium subsp. angustifolium Valerie L. Soza, LeRoy Gross 1999-6-10 519 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road. 1555 Comment
  POM186338  Galium angustifolium subsp. angustifolium Joseph A. Ewan 1932-7-29 7736 Orange Road around Newport Lagoon. Comment
  RSA221069  Galium aparine E. W. Lathrop 1966-5-1 6261 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  UCR11142  Galium aparine S. M. Chambers 1970-5-3 14 Orange Carbon Canyon Road, 2 mi SE of La Vida Mineral Springs Comment
  UCR158850  Galium parisiense A. C. Sanders, Mark A. Elvin 2005-9-2 31603 Orange Peninsular Range; Santa Ana Mtns., mouth of Lion Canyon near Lower San Juan Picnic Area, San Juan Creek Canyon 427 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
  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
  UC1608262  Galium porrigens var. porrigens Steve Boyd and Tim Ross 1992-5-20 7457 Orange along canyon floor from crossing of old Lucas Canyon trail upstream 1/4 mi to spur trail leading to old mining habitations in side canyon (w edge of wilderness); Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar 304 Comment
  UCR190985  Gamochaeta stagnalis A. C. Sanders, Fred M. Roberts 2008-4-22 34993 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  UC2042138  Garrya flavescens R. F. Thorne and C. W. Tilforth, E. W. Lathrop 1977-4-27 49700 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  SD247653  Garrya flavescens subsp. pallida R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49700 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA303834  Garrya flavescens var. pallida Jim R. Shevock 1972-1-16 1334 Orange Silverado Canyon. 610 Comment
  RSA53  Gastridium phleoides J. T. Howell 1927-6-17 163 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  CDA25797  Gastridium ventricosum A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35321 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, 0.3 mile west of Eastern Transportation Corridor (Highway 241) and 1.45 miles east of south end of Walnut Canyon Reservoir. Comment
  CDA5141  Gaura coccinea var. epilobioides E. Johnson 1939-8-3 Orange Brea. 0 Comment
  UCR191442  Geranium carolinianum A. C. Sanders, Fred M. Roberts 2008-4-8 34724 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  OBI82102  Geranium incanum var. multifidum Unknown 2012-6-30 12 -285 Orange City of Costa Mesa, Talbert Regional Park, general vicinity of Balboa Blvd. and 19th Street 5 Comment
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Apr 23 2020
  RSA749296  Gilia achilleifolia Fred M. Roberts, Linda Farley 2008-3-28 6816 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber's Peak, Irvine Land Conservancy. 437 Comment
  RSA610228  Gilia angelensis Fred M. Roberts, Annie Hoecker, Tony Bomkamp 1997-3-29 4989 Orange Rancho Mission Viejo: Canada Gobernadora, east slope, 1.7 km SW Cliff Survey Mark, 1.7 km N Calif. Rte. 74. 122 Comment
  SEINET7073429  Gilia angelensis A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  UCR209363  Gilia angelensis Fred M. Roberts, D. E. Bramlet 2008-4-1 6838 Orange Lomas de Santiago, Loma Ridge, East Lomas Ridge Road along crest, 3.2 km northwest of Bee Peak and 3.4 km northeast of Rattlesnake Reservoir Dam, Irvine Ranch Conservancy 388 Comment
  UCSB16495  Gilia angelensis Breedlove, Dennis 1962-3-9 Orange 4.4 miles east of San Juan Capistrano on State 74 112 Comment
  UCR209351  Gilia capitata subsp. abrotanifolia Fred M. Roberts 2008-4-14 6896 Orange Santa Ana Mountains, Upper Weir Canyon, east fork, 3.1 km eat of Robbers Peak, Irvine Ranch Conservancy 453 Comment
  RSA698358  Gilia tricolor Kenneth Beard s.n. Orange Silverado Canyon. Comment
  RSA588713  Githopsis diffusa subsp. candida Fred M. Roberts 1990-5-22 4637 Orange Santa Ana Mountains; Upper Hot Springs canyon, just west of Falcon Group Camp, 1.9km ESE Los Pinos Peak. 994 Comment
  RSA736577  Gnaphalium beneolens Keith E. Hoffmaster 1934-4-8 142 Orange Santa Ana Mts. Comment
  RSA785635  Gnaphalium beneolens Doris Bowers 1970-10-26 1708 Orange Black Star Can. Indian site 610 Comment
  RSA859  Gnaphalium californicum J. T. Howell 1927-6-24 207 Orange Aliso Canyon, Rancho Santa Ana. 366 Comment
  RSA749042  Gnaphalium canescens subsp. microcephalum A. C. Sanders, Fred M. Roberts 2008-8-7 35971 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 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
  POM201938  Gnaphalium palustre L. M. Booth 1932-5-24 1086 Orange Newport Lagoon. Comment
  RSA733874  Gnaphalium palustre A. C. Sanders, Fred M. Roberts 2008-4-8 34736 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  RSA0022441  Gnaphalium ramosissimum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49774 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA698231  Godetia bottae G. Gentges 1932-5-8 s.n. Orange Silverado Canyon Wash. Comment
  RSA734895  Grindelia camporum A. C. Sanders 2008-5-28 35430 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  IRVC20018  Grindelia camporum var. bracteosa Fred M. Roberts 1981-6-20 276 Orange 0.7km ENE Dana Hills High School, Dana Point 76 Comment
  IRVC742  Grindelia camporum var. bracteosa M. McCartin 1965-5-2 Orange San Juan Capistrano. Southern Coastal Comment
  UCR119299  Grindelia camporum var. bracteosa R. E. Riefner Jr. 2000-7-8 20- 626 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, on ridgetop overlooking W fork of Fremont Canyon, east of Main Divide Road along the powerline 396 Comment
  UCR233742  Grindelia camporum var. bracteosa Fred M. Roberts 2008-6-26 7059 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge along West Loma Ridge Road, c. 1 km north of Haul Road, 2.5 km NNW of Bee Peak, Irvine Ranch Land Conservancy 382 Comment
  CAS-BOT-BC305203  Grindelia hirsutula J. T. Howell 1931-6-1 6624 Orange San Clemente Comment
  CAS-BOT-BC305206  Grindelia hirsutula Carl B. Wolf 1932-7-2 3810 Orange Olinda. Valencia Ave., opposite Olinda Pilgrim Church 152 Comment
  CAS-BOT-BC305211  Grindelia hirsutula LeRoy Abrams 1903-4-19 3273 Orange Capistrano Comment
  CAS-BOT-BC305212  Grindelia hirsutula David D. Keck 1932-9-30 1899 Orange Ca. 5 mi. S. of Santa Ana, at R.R. right-of-way on road to Newport Beach Comment
  UCR7735  Grindelia robusta P. Sunderman 1968-5-11 s.n. Orange W of U.S. 101, immediately south of Corona del Mar. 30 Comment
  LA203641  Gutierrezia californica A. M. Johnson; 1932-4-23 4029 Orange Dry hills N of Orange Comment
  RSA750926  Gutierrezia californica A. C. Sanders, Fred M. Roberts 2008-7-3 35698 Orange Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir. 275 Comment
  RSA868  Gutierrezia californica J. T. Howell 1927-11-6 802 Orange Santa Ana River bottom, Rancho Santa Ana. 152 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
  RSA554642  Gutierrezia sarothrae Scott D. White 1992-10-20 971 Orange Vicinity of city of Brea, Immediately N of Carbon Canyon Rd & E of Placentia Avenue +/-1mi (air) SSE of Tonner Canyon. 183 Comment
  SEINET10605899  Hainardia cylindrica Alan A. Beetle 1942-4-19 Beetle 3092 Orange 20 miles south of Santa Ana, road to Laguna, heavy clay mud of back beach. 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
  RSA0066582  Harpagonella palmeri R. E. Riefner 1995-3-29 95 -62 Orange San Clemente State Beach. Comment
  RSA0066586  Harpagonella palmeri Fred M. Roberts, Dave Bontrager 1990-4-18 4565 Orange Rancho Mission Viejo: ridge between Christianitos and Gabino Canyons (Riverside Cement Lease Holding), 5.5 km SE Playa Survey Marker. 152 Comment
  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
  RSA697179  Hasseanthus variegatus Lucille Crawford 1932-4-17 434 Orange Orange Park Acres. Comment
  UC1118833  Hazardia squarrosa var. grindelioides A. Lewis 1934-4-1 430 Orange Los Pinos Peak Cleveland National Forest, Elsinore Quad., Los Pinos Peak 1219 Comment
  RSA113254  Hedypnois cretica E. K. Balls 1955-4-4 20433 Orange Coastal Strand, mouth of Santa Ana River, W bank, Hwy 101. 3 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
  UCR103708  Helenium puberulum B. G. Pitzer, T. Tennant 1997-11-8 3363 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
  LA204758  Helianthemum scoparium B. R. Lower; 1954-3-28 sn Orange hills behind Laguna Beach Comment
  UC1121541  Helianthemum scoparium A. Lewis 1934-3-1 359 Orange Head of Hagador Canyon Cleveland National Forest, Corona Quad. 1112 Comment
  POM12888B  Helianthemum scoparium var. vulgare P. A. Munz, J. M. Johnston, I. M. Munz 1922-5-18 5307 Orange Santa Ana River Canyon. 274 Comment
  CAS-BOT-BC305447  Helianthus annuus John Thomas Howell 1927-7-27 2846 Orange In hills on north side of Santa Ana Canyon 152 Comment
  IRVC777  Helianthus annuus D. Christy 1973-8-1 Orange Newport Back Bay. L.J. Colin MACF 20494. Newport Beach: Bayside Dr. Newport Beach Comment
  UCSB18113  Helianthus annuus Daniel, Dick 1964-3-28 Orange 0.5 miles S of junction of Santiago Canyon Road and Chapman Street, 4 miles E of Orange 274 Comment
  RSA643433  Helianthus ciliaris R. D. Goeden, D. W. Ricker 1965-7-7 s.n. Orange Laguna Hills: Veeh Ranch, ca. 1.5 mi. W of El Toro. 91 Comment
  UCR230222  Helianthus gracilentus Dick Newell, Ed Hill 2011-3-29 099 Orange Peninsular Range; Santa Ana Mtns., 200 yards NE of old coal mine, under power lines, off Coal Rd. below intersection with Upper Blind Cyn. Rd. 482 Comment
  UCSB47624  Helianthus gracilentus Roberts, Fred 1980-5-3 Orange Santa Ana Mtns.: Main Divide Truck Trail, 1.0 km SE Blue Jay Campground; 2.8km WSW El Cariso Guard Station 1010 Comment
  SD87639  Helianthus nuttallii subsp. parishii F. W. Peirson 1924-10-19 5247 Orange Wintersberg Comment
  UCSB48091  Heliotropium curassavicum Roberts, Jr., Fred 1981-5-2 Orange Mission Viejo: Camino Capistrano, 1.7km N Crown Valley Parkway 49 Comment
  RSA0037205  Heliotropium curassavicum Darren Day, Hal Willis 1984-5-17 025 Orange This plant was found growing 2.3 miles outside of the city of Laguna Beach, on Laguna Canyon Rd. heading north, on the east side of the road. Comment
  POM369761  Heliotropium curassavicum var. oculatum F. R. Fosberg 1931-6-19 5154 Orange Carbon Canyon, Puente Hills. Comment
  POM202725  Heliotropium curassavicum var. oculatum L. M. Booth 1932-6-9 1172 Orange Santa Ana River, 1 mile from ocean. Comment
  POM369759  Heliotropium curassavicum var. oculatum A. M. Johnson 1932-4-23 4032 Orange Railroad right of way, N of Orange County Comment
  POM215121  Hemizonia australis D. D. Keck 1933-9-17 2524 Orange Westminister Comment
  RSA254941  Hemizonia australis C. W. Tilforth 1975-9-6 1047 Orange Upper Bay, Newport Beach: North-east shoreline. Comment
  IRVC14796  Hemizonia fasciculata A. S. Boughey 1968-7-16 424 Orange road to Signal Peak. San Joaquin Hills Comment
  IRVC786  Hemizonia fasciculata C. Thompson 1965-5-4 Orange Corona del Mar, Corona Highlands. Newport Beach Comment
  POM202163  Hemizonia fasciculata L. M. Booth 1932-5-12 1038 Orange Newport Bay Comment
  POM360277  Hemizonia fasciculata L. C. Wheeler 1932-6-25 861 Orange Newport Bay. 6 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
  UCR157707  Hemizonia parryi subsp. australis Adrian Wolf 1998-7-1 422 Orange South Coast, Newport Oil Fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  UCR158023  Hemizonia parryi subsp. australis Adrian Wolf 1998-7-1 425 Orange South Coast, University of California, Irvine East Campus, corner of Bonita Canyon Rd.and Culver on west side of road 70 Comment
  UCR98777  Hemizonia parryi subsp. australis C. S. Jones, W. Loeffler 1996-9-16 13 Orange Seal Beach, Hellman Ranch Site, located west of Seal Beach Boulevard, south of Los Alamitos Retarding Basin, east of Haines Cooling Channel, and north of Gum Grove Park Comment
  CAS-BOT-BC403798  Hesperocnide tenella D. L. Crawford 1916-7-1 1959 Orange Near Laguna Comment
  RSA771711  Hesperolinon micranthum Robt. Allen, Chris M. Barnhill, Dylan Hannon 2005-5-7 12514 Orange Coal Canyon, upper region above old mining area, southeast of utility road that runs on ridge between Coal and Gypsum Canyons. 525 Comment
  CAS-BOT-BC143749  Heteromeles arbutifolia E. A. Zumbro 1902-1-1 365 Orange unspecified Comment
  RSA0072404  Heteromeles arbutifolia Fred M. Roberts, Robert L. Allen 2004-1-16 6020 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.15 km W of Cristianitos Rd. 92 Comment
  RSA743517  Heteromeles arbutifolia Fred M. Roberts 2008-4-9 6884 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UCR145985  Heteromeles arbutifolia June Latting 1977-1-12 s.n. Orange Chino Hills, Tonner Canyon 213 Comment
  UCR222859  Heteromeles arbutifolia T. B. Salvato 2010-10-27 5138 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  UCR223957  Heteromeles arbutifolia Fred M. Roberts 2008-4-9 6884 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
  UCR281510  Heteromeles arbutifolia Mitch Provance, Jeremiah George 2017-3-20 317- 105 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
  HSC5823  Heterotheca grandiflora J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  UC1543194  Heterotheca grandiflora Donald G. Nelson 1935-3-23 186 Orange sand pit near dump just s E. Orangethorpe Ave.; East Fullerton Comment
  UCSB44177  Heterotheca grandiflora Henneman, J. 1977-5-21 Orange Newport Back Bay 6 Comment
  RSA0075806  Heterotheca grandiflora Ken Greby 1985-5-17 38 Orange On hillsides behind PG and E substation located 2 km. SE from Laguna Canyon Rd., on El Toro Rd., adjacent to Leisure World. Comment
  RSA0075809  Heterotheca grandiflora Kenneth Beard 1934-03 s.n. Orange Riverbank of Santa Ana River. Comment
  RSA0075813  Heterotheca grandiflora Dolores Perez 1981-4-11 6 Orange Carbon Canyon Rd., 6 miles E. of junction with Ca Hwy 90. Comment
  RSA0075817  Heterotheca grandiflora I. L. Wiggins 1966-3-16 20523 Orange Recent road cut near Orange County refuse disposal area. Comment
  SD8916  Heterotheca grandiflora George R. Kleeberger Nov 1875 Orange Santa Ana Valley Comment
  SEINET2073666  Heterotheca grandiflora R. Beal 1980-5-6 Orange Dana Point, above Pacific Ocean, hard-packed sand on top of sand hill. Comment
  CHSC30405  Heterotheca sessiliflora T. B. Devine 1980-4-2 620 Orange On Back Bay Dr. E. of Upper Newport Bay ca 2 mi. N. of jct. with Jamboree Rd. Comment
  UCR220968  Heterotheca sessiliflora Dick Newell, Don Millar 2010-8-17 32 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Ridge Rd. 200 ft. south of Markel Spur Rd., 0.8 mi. west of Santiago Canyon rd, 427 Comment
  POM146204  Heterotheca sessiliflora subsp. echioides F. M. Reed 1927-10-14 5502 Orange Summit of Sulfur Slide Hill, Santa Ana Canyon Comment
Read comments
May 1 2011
  UCD150988  Hieracium argutum D. S. Park 2010-4-25 31 Orange Whiting Ranch Wilderness Park, along trail. 254 Comment
  CAS-BOT-BC55401  Hirschfeldia incana Ira L. Wiggins 1965-11-6 20344 Orange Near Well No. 14 on Kraemer Oil Estates, near end of county road leading to Rancho Santa Ana. Comment
  RSA702204  Hirschfeldia incana Fred M. Roberts, David E. Bramlet 2003-6-20 5921 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  CAS-BOT-BC55399  Hirschfeldia incana Ira L. Wiggins 1966-3-5 20521 Orange Along Highway S-18 about 2 miles east of El Toro. 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
  IRVC18680  Hoita orbicularis Karlin G. Marsh 1981-5-1 s.n. Orange Main Divide [Truck] Trail above Maple Springs. Santa Ana Mountains 1341 Comment
  SEINET192291 Image available Holcus halepensis C. B. Wolf 1932-6-13 3724 Orange Fullerton Malvern and Nicholas Ave 53 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
  UCD22756  Homalocladium platycladum A. T. Leiser 1974-9-26 s.n. Orange So. Coast Field Sta. Comment
  RSA4806  Hordeum depressum James Snow 1932-1 s.n. Orange Bryant Ranch , near Long Beach, Calif. Station #1, Plant 6 Comment
  UCR104647  Hordeum depressum D. E. Bramlet 1996-4-20 2458 A Orange Marsh adjacent to Upper Newport Bay, c. 122m SE of the end of University Dr. and 15.2 m west of the Delhi channel Comment
  RSA608537  Hordeum intercedens D. E. Bramlet 1993-4-18 2332 Orange University of California, Irvine Campus, on the UCI Ecological Reserve. The site is 500 ft. southwest of the end of Los Trancos Dr. & 75 ft northwest of the reserve entrance., 37 21 370m. N X 4 21 950m E. Comment
  RSA704076  Hordeum intercedens D. E. Bramlet, Fred M. Roberts 2003-5-15 3436 Orange Donna O'Neill Reserve. SE corner of the reserve 152m west of Cristianitos Rd. and 731m north of Pico. The site is 122m NW of the SDGE substation 98 Comment
  RSA799617  Hordeum intercedens Justin M. Wood 2011-4-12 3652 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  UCR168466  Hordeum intercedens D. E. Bramlet, Fred M. Roberts 2003-5-8 3433 Orange Donna O'Neill Reserve, S-mid east area of reserve, 91 m west of Cristianitos Rd. and 152 m south of the east - west road, San Clemente 119 Comment
  UCR237819  Hordeum murinum Mark A. Elvin 2003-2-2 2284 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  CAS-BOT-BC289363  Hordeum murinum subsp. glaucum Ira L. Wiggins 1966-2-19 20453 Orange In Carbon Canyon near Orange County Survey bench mark RCE 7872 Comment
  CAS-BOT-BC289365  Hordeum murinum subsp. glaucum Ira L. Wiggins 1966-3-19 20537 Orange Irvine Ranch, southeast of U.C. Irvine Comment
  RSA184143  Hordeum murinum subsp. leporinum I. L. Wiggins 1966-2-19 20453 Orange Hillside on W side of road, Carbon Canyon about 200m. Sw of Orange County Survey bench mark RCE 7872 Comment
  HSC94292  Hordeum murinum subsp. murinum D. Atwood 1993-3-28 17710 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. 0 Comment
Read comments
Jul 8 2010
  UCR37805  Horkelia cuneata subsp. cuneata 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
  RSA737485  Horkelia cuneata subsp. puberula D. E. Bramlet 2008-4-28 4250 Orange East fork of Upper Weir Cyn., on the S. side of the existing access road. The site is 1.6km east of the main cyn. and 183m west of the Upper boundary of Gypsum Cyn. 406 Comment
  RSA789353  Horkelia cuneata subsp. puberula Naomi S. Fraga, Duncan S. Bell 2009-5-11 2720 Orange Chiquita Trail 762 Comment
  SEINET187061  Horkelia cuneata subsp. puberula P. A. Munz 1936-4-20 14606 Orange Mt Olympus Laguna Beach 152 Comment
  UC582823  Horkelia cuneata subsp. puberula Philip A. Munz 1936-4-20 14606 Orange Laguna Beach Mt. Olympus 152 Comment
  UCR256940  Horkelia cuneata var. puberula Naomi Fraga, Duncan S. Bell 2009-5-11 2720 Orange Peninsular Range; Santa Ana Mountains, Chiquita Trail, Lion Canyon 762 Comment
  CAS-BOT-BC206147  Hosackia crassifolia Peter H. Raven 1962-5-18 17754 Orange Main Divide Truck Trail 1.6 miles north of Santiago Peak, along edges of oak woodland 1554 Comment
  RSA1305  Hydrocotyle ranunculoides J. T. Howell 1928-9-6 1207 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  UCR186590  Hydrocotyle ranunculoides Robert DeRuff 1996-5-6 493 Orange Southern Coast, Newport Beach, Newport Back Bay, streambed at 23rd St. 3 Comment
  SD247408  Ipomoea cairica R. E. Riefner Jr. 2012-11-27 12 563 Orange City of Laguna Beach, Southe Crescent Beach, Circly Way near Cliff Drive. 3 Comment
  SD124238  Isocoma menziesii var. menziesii C. W. Tilforth 1976-10-21 1225 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana Comment
  CAS-BOT-BC311674  Isocoma menziesii var. sedoides David D. Keck 1932-9-30 1901 Orange 2 mi. W. of Laguna Beach Comment
  IRVC24537  Isocoma menziesii var. vernonioides J. Johnson 1976-8-10 Orange Newport [Back] Bay. Newport Beach Comment
  IRVC28771  Isocoma menziesii var. vernonioides Elizabeth H. Hook, Caroline Tran 2006-2-4 2 Orange San Joaquin Marsh; NW bluff edge Southern Coastal 5 Comment
  RSA680324  Isocoma menziesii var. vernonioides Scott D. White, Jeff Lincer 2003-7-7 9615 Orange Former El Toro Marine Corps Air Stn. East of 'El Toro Marine Sch.' and Irvine Blvd.; site of former dump. 140 Comment
  SD136909  Isocoma menziesii var. vernonioides Steve Boyd, Tim Ross 1994-9-14 8344 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness area, Lucas Canyon trail at stream crossing in Aliso Canyon 341 Comment
  RSA697044  Isocoma veneta var. vernonioides Keith E. Hoffmaster 1927-10-9 s.n. Orange Santa Ana. Comment
  IRVC19387  Isomeris arborea R. L. Allen 1975-2-18 Orange Dana Hills High School nature preserve; common. Dana Point Comment
  IRVC9273  Isomeris arborea B. T. Gittins 1963-3-3 9 Orange [Lower] Newport Bay, sandy bluff at entrance to Balboa Island Newport Beach Comment
  JEPS42708  Isomeris arborea L. M. Booth 1932-5-12 1045 Orange Newport Bay Comment
  UC1090402  Isomeris arborea Milo S. Baker 1958-5-20 13307 Orange Newport Bay Comment
  UCR96319  Isomeris arborea B. G. Pitzer 1996-4-30 2796 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  CAS-BOT-BC340126  Jaumea carnosa Peter H. Raven 1957-9-28 11384 Orange At north limits of Surfside Comment
  UCR240104  Jaumea carnosa Dick Newell, Judy Booth 2012-9-26 292 Orange South Coast, Newport Beach, Back Bay Drive at the Salt Dike 3 Comment
  POM122693  Jepsonia parryi Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. Comment
  UCR24414  Jepsonia parryi John C. Roos 1936-10-9 2301 Orange Santa Ana Canyon Comment
  UC112094  Juglans E. B. Babcock 1907-9-9 Orange on ranch of E.S. Ware 1 mi n Garden Grove Comment
  LA205692  Juglans californica C. B. Wolf; 1934-9-21 6141 Orange Brea Canyon, lower end of canyon, Puente Hills 600.0 +- ft Comment
  RSA0011061  Juglans californica I. L. Wiggins 1965-5-27 20310 Orange Near Los Angeles County Line, along Brea Canyon Road. Comment
  RSA0011078  Juglans californica Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. 762 Comment
  RSA781304  Juglans hindsii A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37203 Orange Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., near Agustine Staging Area at south foot of Blue Diamond Haul Rd. bridge over Santiago Canyon Rd. 253 Comment
  UCR242862  Juglans hindsii R. E. Riefner Jr. 2011-9-10 11- 124 Orange Santa Ana Canyon, Hwy I-91 northbound, south side of fwy, within 100 ft of the Riverside County line 127 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
  UCR193403  Juglans nigra A. C. Sanders, Fred M. Roberts 2008-6-17 35477 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA795708  Juncus W. R. Ferren 1991-12-2 EPA- 18 Orange Cook Creek, tributary to Aliso Creek, San Juan Capistrano. Comment
  CDA23119  Juncus acutus subsp. leopoldii A. Thomas, Mark A. Elvin 2006-2-23 609238 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, northwest of University Drive, east Highway 73. Comment
  UC1280019  Juncus acutus subsp. leopoldii Peter H. Raven 1957-9-28 11401 Orange just n Huntington Beach Comment
  UC842095  Juncus acutus subsp. leopoldii Louis C. Wheeler 1932-6-25 869 Orange inlet arm of Newport Bay Newport Bay 0 Comment
  UCSB36209  Juncus acutus subsp. leopoldii Ferren, Wayne; Whitmore, S.; Millett, B. 1980-8-27 Orange Newport Backbay just W of Backbay Drive; ca. 3 km V NE of Rt. 1; Newport Beach Comment
  RSA697809  Juncus bufonius var. bufonius Ophelia Frost 1932-5-2 s.n. Orange On H. B. Boulevard-about 2 miles out. Comment
  UCSB48193  Juncus macrophyllus Roberts, Fred 1981-6-26 Orange Santa Ana Mts; east fork Viejo Cyn; 0.6 km N Calif. Rte. 74; 2.7 km E San Juan Guard Station 326 Comment
  RSA109  Juncus oxymeris J. T. Howell 1927-7-3 254 Orange Claymine Canyon near Sierra Peak. 305 Comment
  SEINET6174580  Juncus phaeocephalus E. K. Balls 1949-5-9 13467 Orange Botanic Garden, Santa Ana River Canyon 198 Comment
  RSA110  Juncus rugulosus J. T. Howell 1927-7-18 423 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  UCSB47990  Juncus rugulosus Roberts, Fred 1980-6-25 Orange Santa Ana Mtns; San Juan Canyon below Calif. Rte. 74; 2.4km ENE San Juan Guard Station; 0.3 km WSW BM 1100 290 Comment
  RSA7323  Juncus xiphioides E. R. Johnson 1933-7-5 5166 Orange Rancho Santa Ana. 122 Comment
  UCR157709  Juncus xiphioides Adrian Wolf 1998-7-1 416 Orange South Coast, north Newport Oil Fields and East Banning Park; between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 6 Comment
  JEPS15116  Keckiella antirrhinoides R. St. John 1931-3-31 201 Orange Mouth of Silverado Canyon; Corona Quad. 457 Comment
  UCR50731  Keckiella antirrhinoides Steve Hampson 1988-5-12 s.n Orange Santa Ana Mtns, Harding Canyon above Modjeska Reservoir. Streamside 488 Comment
  CAS-BOT-BC235531  Keckiella antirrhinoides var. antirrhinoides Helen D. Geis 1904-5-1 735 Orange Silverado Canon [Canyon], Santa Ana Mountains Comment
  CAS-BOT-BC235532  Keckiella antirrhinoides var. antirrhinoides A. J. Perkins 1909-6-1 s.n. Orange Orange County Park Comment
  CAS-BOT-BC235533  Keckiella antirrhinoides var. antirrhinoides John Thomas Howell 1927-6-5 2430 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 Comment
  NY786527  Keckiella antirrhinoides var. antirrhinoides F. R. Fosberg S 5082 Orange Lower Santiago Can. Comment
  RSA659899  Keckiella cordifolia Karl Price 1988-5-21 40 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  SBBG47452  Keckiella cordifolia N. C. Cooper 1944-6-4 1340 Orange San Juan Cyn 304 Comment
  SEINET10499891  Keckiella cordifolia James S. Miller 1992-5-8 Miller 7452 Orange 2 mi E of the border of Cleveland National on California route 74. 310 Comment
  UC1011911  Keckiella cordifolia F. W. Pennell and E. M. Harvey 1949-6-29 26806 Orange above San Juan Capistrano (Ortega Highway) 365 Comment
  UCR193025  Keckiella cordifolia A. C. Sanders, Fred M. Roberts 2008-6-17 35516 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  POM18123  Keckiella ternata subsp. ternata Philip A. Munz 1923-9-7 7743 Orange Santiago Peak. 1524 Comment
  UCR132992  Koeleria macrantha Adrian Wolf 2000-1 457 Orange Santa Ana Mtns., North Ranch Policy Plan Area, tributary to Blind Canyon, NW of coal mine 305 Comment
  UCR242116  Koeleria macrantha D. E. Bramlet 1983-5-14 1373 Orange Peninsular Range, Santa Ana Mountains, Chiquito Basin 884 Comment
  UCR243183  Koeleria macrantha Chris E. True, Sara Jo Dickens 2013-4-30 s.n. Orange Aliso Canyon, Aliso and Wood Canyons Park, south of Aliso Viejo 61 Comment
  CDA7192  Koelreuteria bipinnata T. B. Salvato, K. Kurtz, Mitch Provance 2006-10-15 1903 Orange South Coast; Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Dirve. Comment
  UCR186506  Koelreuteria bipinnata T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1903 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  IRVC29794  Koelreuteria paniculata Mark A. Elvin, Dean Kelch 2006-12-9 5320 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  RSA696161  Lactuca scariola Keith E. Hoffmaster 1927-10 s.n. Orange Santa Ana Comment
  UC912645  Lamarckia aurea Herbert L. Mason 1926-4-25 2938 Orange Laguna Canyon Comment
  RSA56  Lamarckia aurea J. T. Howell 1928-2-26 855 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCSB49039  Lamium amplexicaule Martincich, M. 1980-3-12 Orange On a cow trail on Franklin Ranch, Goleta 137 Comment
  CAS-BOT-BC338908  Lasthenia californica Agnes M. Bowman 1899-6-1 s.n. Orange Orange Comment
  IRVC19035  Lasthenia californica T. Ackerman 1982-4-24 82 -261 Orange south of Live Oak Canyon Rd., trail road from Methodist Church. Santa Ana Mountains Comment
  SFV16517  Lathyrus hirsutus S. Mason, P. Rector 1993-4-16 s. n. Orange Santa Ana Mountains CA State Highway 74 at Lower San Juan Campground. Adjacent to campground sign on southeast side of road. 396 Comment
  SEINET955802  Lathyrus laetiflorus Norman C. Cooper 1944-1 1374 Orange Elsinore Mtn. 1067 Comment
  RSA657213  Lathyrus latifolius Steve Teh, Marie Gabbard 1994-4-28 20 Orange Modjeska Grade Rd. 2/3 mile back on fire rd. Comment
  RSA292482  Lathyrus sphaericus James Henrickson 1972-10-21 8061 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. Irrigated grassland eventually to be used for large Newport Beach Business Center. 46 Comment
  JEPS57259  Lathyrus tingitanus L. R. Heckard and R. C. Bacigalupi 1968-5-8 1837 Orange just n of Doheny Beach Park (Dana Point); Dana Point Comment
  SEINET956308  Lathyrus vestitus Scott D. White 1997-1 b- 4698 Orange Above Modjeska Canyon. Proposed water tank site. 427 Comment
  RSA406636  Lathyrus vestitus subsp. alefeldii M. B. Dunkle 1934-2-19 3844 Orange San Juan Canyon, 366 Comment
  UC729698  Lathyrus vestitus var. alefeldii Carl B. Wolf 1932-3-8 Orange w base Santa Ana Mts.; , Santiago Dam 304 Comment
  CHSC56083  Lathyrus vestitus var. vestitus Mike Cecchini 1978-6-23 1 Orange Ca 1 km northeast of Tucker Wildlife Sanctuary and 0.5 km southeast of Modjeska Reservoir; 10.5 km southeast of Tustim. 457 Comment
  RSA799619  Lavatera cretica Justin M. Wood 2011-4-12 3662 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  UCR223431  Layia platyglossa Dick Newell, Don Millar 2011-3-1 074 Orange Peninsular Range; Santa Ana Mtns. Foothills, MWD road east of outdoor education property, 1.6 mi. NW (312 deg. ) of Irvine Lake dam 258 Comment
  IRVC18939  Layia platyglossa T. L. Ackerman 1982-4-24 82 -260 Orange S of Live Oak Canyon Rd., on dirt trail from road to Methodist Church; disturbed chaparral; Santa Ana Mountains Comment
  SEINET7882512 Image available Layia platyglossa Jean Coulson 1959-1 s.n. Orange Disneyland; Painted Desert W. of Paint Pots Comment
  RSA17019  Layia platyglossa subsp. campestris Percy C. Everett 1935-4-15 6462 Orange 8/10 mile E of Atwood on S side of Santa Fe RR. 107 Comment
  RSA714001  Lemna minuta R. E. Riefner 2005-10-27 5 -303 Orange City of Irvine; along Jeffrey Rd. N of Barranca Rd. near Irvine Valley College. 47 Comment
  RSA715699  Lemna minuta Fred M. Roberts, Chris M. Barnhill 2005-9-27 6280 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  UCSB52476  Lemna minuta Roberts, Fred; Ferren, Wayne 1982-7-21 Orange Newport Beach; Newport Backbay, Back Bay Dr., 1.4 km. N jct. San Joaquin Hills Rd. 1 Comment
  RSA741723  Lepechinia cardiophylla R. E. Riefner Jr. 2008-3-21 8 -59 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fremont Canyon, Windy Ridge S to W fork canyon habitat. 463 Comment
  UCD115425  Lepidium draba P. B. Kennedy 1924-2-13 s.n. Orange Wintersberg. Comment
  POM183940  Lepidium lasiocarpum P. A. Munz 1932-3-29 12191 Orange Costa Mesa. Comment
  POM183942  Lepidium lasiocarpum P. A. Munz 1932-3-29 12191 Orange Costa Mesa. Comment
  RSA326  Lepidium lasiocarpum J. T. Howell 1928-2-26 859 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR112097  Lepidium lasiocarpum A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23338 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  UC494728  Lepidium lasiocarpum var. lasiocarpum Philip A. Munz 1932-3-29 12191 Orange Costa Mesa Comment
  UCR14029  Lepidium latifolium J. Riley 1973-9-12 s.n. Orange N end of Huntington Beach Comment
  IRVC29094  Lepidium nitidum Fred M. Roberts 1989-3-17 4209 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 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
  IRVC1108  Lepidium nitidum B. Mawdsley 1965-3-24 Orange Corona del Mar, Narcissus and 5th. Newport Beach Comment
  RSA184170  Lepidium nitidum I. L. Wiggins 1966-3-5 20511 Orange 1/2 mile W of El Toro along Hwy 18 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
  RSA689412  Lepidium virginicum var. pubescens Scott D. White, Amanda Duchardt 2003-4-10 9005 Orange Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  IRVC24787  Lepidium virginicum var. robinsonii Karlin G. Marsh 1989-3-4 Orange Lomas Ridge, ridge between Hicks and Rattlesnake Canyons. Lomas de Santiago 210 Comment
  RSA783045  Lepidospartum J. D. Olmsted 1959-8-25 840 Orange Mouth of Black Star Canyon east of Santiago Reservoir 320 Comment
  RSA789590  Leptochloa fusca subsp. fascicularis R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49632 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  POM47583  Leptochloa fusca subsp. uninervia I. M. Johnston 1924-8-29 s.n. Orange 1 mile north of Santa Ana. Comment
  UCR12588  Leptochloa uninervia J. S. Davis 1972-5-6 720506- 5 Orange South Coast, Newport Beach; corner of San Joaquin Hills Road and Back Bay Road 0 Comment
  UCR44908  Leptochloa uninervia B. G. Pitzer, L. F. LaPre 1986-10-20 0318 Orange City of Irvine, Drainage channel near intersection of Irvine Blvd. and Sand Canyon Avenue. 91 Comment
  RSA734967  Leptodactylon californicum A. C. Sanders, Fred M. Roberts, A. O'Neal, D. E. Bramlet 2008-5-9 35302 Orange Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  UCR17334  Leptodactylon californicum Andrew Alexis 1978-4-29 s.n. Orange Santa Ana Mtns, mouth of Modjeska Canyon. Comment
  UCR16662  Leptodactylon californicum subsp. leptotrichomum David M. Peterson 1966-3-9 660309- 11 Orange Peninsular Range; Santa Ana Mtns., 13 mi east of San Juan Capistrano on the road to Elsinore 457 Comment
  RSA12929  Leptosiphon androsaceus C. B. Wolf 1935-4-7 6319 Orange Mouth of San Juan Hot Springs Canon, at san juan Hot Springs 213 Comment
  POM3492  Leptosiphon androsaceus Crawford s.n. Orange Laguna Mts. 305 Comment
  RSA73675  Leptosiphon floribundus F. W. Peirson 1925-4-10 5741 Orange In Silverado Canyon. 610 Comment
  CAS-BOT-BC227045  Leptosiphon floribundus subsp. glaber E. R. Johnson 1932-5-1 3703 Orange Santa Ana Mts., along ridge, between Skyline Drive and Santiago Peak 1219 Comment
  RSA715700  Leptosiphon liniflorus Fred M. Roberts, Robert L. Allen 2005-10-15 6311 Orange entrance to Falcon Group Camp, 2.1km ESE Los Pinos Peak and 0.3km NE campground. 1008 Comment
  RSA550596  Leptosiphon liniflorus Fred M. Roberts 1989-4-26 4318 Orange Mouth of Blind Caynon, 9.4 k SW Sierra Peak, 1.0km N Irvine lake spillway. 219 Comment
  RSA602109  Leptosiphon parviflorus Scott D. White 1997-5-6 5036 Orange Santa Ana Mountians, Santiago Canyon Area: Unnamed tributary to Santiago Creek flowing from the SW, directly W of Pancho Canyon. Lomas de Santiago S179. 366 Comment
  RSA184056  Leymus condensatus I. L. Wiggins 1965-9-26 20255 Orange Carbon Canyon; about 3.5 miles above its mouth., [33 deg 55'N, 117 deg 50'20W] Comment
  RSA697771  Leymus triticoides Minor Warne 1934-5-17 s.n. Orange Greenville Drainage. Comment
  UCSB52930  Leymus triticoides Roberts, Fred 1983-5-19 Orange Laguna Beach; Laguna Canyon along Laguna Canyon Rd., 1.5 km N jct. El Toro and Laguna Canyon Rds.; 4.9km ESE Signal Peak 100 Comment
  CAS-BOT-BC130579  Lilium humboldtii B. D. Stark 1927-9-6 s.n. Orange Claymine Canyon, Santa Ana Mts. 365 Comment
  CAS-BOT-BC130581  Lilium humboldtii John Thomas Howell 1927-7-3 2645 Orange Claymine Canyon, n. Santa Ana Mts. 304 Comment
  UCR237813  Lilium humboldtii subsp. ocellatum Dick Newell, Judy Booth 2012-7-8 280 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Road 2.25 mi. NE of Maple Springs gate 915 Comment
  UC1873111  Limonium R. E. Riefner Jr. 2006-10-19 06 -543 Orange Santa Ana Mountains, City of Rancho Santa Margarita, Robinson Ranch Road at Shadow Rock Road 419 Comment
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Jun 15 2011
  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
  UCR12584  Limonium californicum J. S. Davis 1972-5-6 720506- 18 Orange South Coast, Newport Beach, 100 yards from the corner of San Joaquin Hills Road and Back Bay Road. 0 Comment
  POM122839  Limonium californicum var. mexicanum Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  UCR6061  Limonium perezii Sue Freeman 1966-3-27 s.n. Orange South Coast, Laguna, off end of Wave Street 6 Comment
  RSA723546  Limonium ramosissimum R. E. Riefner 2005-9-16 5 -667 Orange City of Newport Beach, E of Newport Bay and E of Bayside Dr. Big Canyon Creek drainage. 6 Comment
  UCR219807  Limonium ramosissimum Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  IRVC29782  Limonium sinuatum Mark A. Elvin, Dean Kelch 2006-12-9 5294 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  CAS-BOT-BC226779  Linanthus californicus T. Cass 1975-4-11 1517 Orange Ladd Canyon Comment
  POM6475  Linanthus californicus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2629 Orange Santa Ana River Canyon. Comment
  SD42980  Linanthus californicus E. B. Harbison Mar 1948 Orange Near San Juan Camp. Comment
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Sep 30 2013
  UCD39066  Linanthus californicus Beecher Crampton 1963-5-7 6789 Orange 11 miles northeast of San Juan Capistrano, State Hwy. 74, Lower San Juan Canyon, Santa Ana Mtns. Comment
  RSA468459  Linanthus californicus N. C. Cooper 1949-5-1 3940 Orange San Juan Canyon. 610 Comment
  RSA0127419  Linanthus dianthiflorus Fred M. Roberts 2016-3-17 8014 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  UCSB48049  Linanthus dianthiflorus Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point: hills, 1.0 km N Dana Hills High School; 1.9 km W Marco Forster Junior High School 30 Comment
  RSA4498  Linanthus dianthiflorus subsp. dianthiflorus C. B. Wolf 1932-3-14 2711 Orange At west side of Botanic Garden(this is the only known patch in the vicinity of the B.g.) 192 Comment
  UC1618056  Linanthus floribundus Donald G. Nelson 1935-7-6 203 Orange San Juan Canyon Comment
  UCR151030  Linanthus parviflorus Scott D. White 1997-5-6 5036 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
  RSA718  Linaria canadensis var. texana J. T. Howell 1928-2-25 835 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  UC1419828  Lindernia dubia var. anagallidea G. D. Barbe 1973-8-9 1693 Orange Santa Ana (Tustin); Bordier's Nursery, 7231 Irivne Blvd Comment
  RSA632420  Lithophragma affine Valerie L. Soza, LeRoy Gross 1999-6-10 521 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road. 1554 Comment
  RSA797821  Lithophragma affine subsp. mixtum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49810 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR193805  Lobelia dunnii var. serrata A. C. Sanders, Fred M. Roberts 2008-7-16 35837 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  IRVC1113  Lobularia maritima J. Pierce 1965-4-27 Orange Corona del Mar. Newport Beach Comment
  RSA0073645  Logfia filaginoides Fred M. Roberts, Lee Ann Caranza, Eliza Maher 2009-4-7 7146 Orange South Coast Region: DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 50 Comment
  CAS-BOT-BC283492  Lolium multiflorum Carl B. Wolf 1932-6-13 3728 Orange Fullerton, Malvern, and Nicholas Avenues 53 Comment
  CAS-BOT-BC283493  Lolium multiflorum Carl B. Wolf 1932-6-13 3717 Orange Fullerton, Malvern, and Nicholas Avenues 53 Comment
  UC729941  Lolium perenne Carl B. Wolf 1932-6-13 3728 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  UCR2521  Lolium perenne subsp. multiflorum F. M. Reed 1928-5-22 5976 Orange South Coast, Laguna Village 30 Comment
  RSA0011622  Lolium perenne subsp. multiflorum Rankin s.n. Orange Irvine Park. Comment
  UCR193796  Lolium perenne subsp. perenne A. C. Sanders, Fred M. Roberts 2008-7-3 35707 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
  RSA650633  Lolium perenne var. multiflorum Daniel Truong 1991-5-5 3 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  POM265762  Lolium temulentum J. C. Roos 1937-5-21 2068 Orange Lemon Heights Comment
  RSA529  Lomatium lucidum J. T. Howell 1927-6-26 221 Orange Claymine Canyon near Sierra Peak 366 Comment
  POM50583  Lonicera subspicata var. denudata Helen D. Geis 1900-1 518 Orange Hills back of Santa Ana. Comment
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Aug 8 2010
  RSA5337  Lonicera subspicata var. denudata B. D. Stark 1933-1-4 4489 Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 213 Comment
  UCSB52454  Lonicera subspicata var. denudata Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills; Carbon Canyon, Carbon Canyon Rd., 0.3 km. by road SW county line; 2.5 km. NW Gilman Peak 260 Comment
  UC454692  Lotus heermannii I. J. Condit 1908-7-21 Orange Los Alamitos Comment
  UCR192215  Lotus humistratus A. C. Sanders, Fred M. Roberts 2008-5-6 35254 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UCR193377  Lotus purshianus A. C. Sanders, Mitch Provance 2008-5-20 35394 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA697975  Lotus salsuginosus Olive Van Meter s.n. Orange Black Star Canyon. Comment
  RSA734346  Lotus salsuginosus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34637 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 396 Comment
  RSA749302  Lotus salsuginosus Fred M. Roberts 1999-4-21 5181 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
  UCR222416  Lotus salsuginosus D. E. Bramlet 2008-3-26 4118 Orange Peninsular Range; Santa Ana Mountains, Bee Canyon, Bowerman landfill site. 202 m south of the Bee Canyon access road and 151 m west of the active landfill entrance 295 Comment
  RSA590947  Lotus scoparius Fred M. Roberts 1991-3-2 4778 Orange San Joaquin Hills: Laguna Canyon, Laguna Laurel, just west of Laguna Canyon Road, ca. 2 km N jct. El Toro Road, 4.5 km E Signal Peak. 110 Comment
  IRVC2243  Lotus scoparius subsp. scoparius S. Holloway 1965-4-1 Orange Corona del Mar. Newport Beach 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
  RSA390  Lotus strigosus J. T. Howell 1928-4-7 899 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA751166  Lotus strigosus D. E. Bramlet 2008-5-15 4271 Orange Upper Borrego Cyn. 152m east of the access road and 1.7km west of Santiago Cyn Road 450 Comment
  UC1544837  Lotus strigosus A. G. Vestal 1962-4-8 Orange 1.3 mi n Elsinore 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
  IRVC24533  Lotus strigosus var. strigosus Fred M. Roberts, Gordon Marsh 1986-2-28 2636 Orange Mission Viejo: N of Oso Parkway; 4.2km NNE Saddleback Community College. Southern Coastal 200 Comment
  RSA688873  Lotus unifoliolatus Fred M. Roberts 2003-5-1 5666 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.49km S Gato Gate and just west of Cristianitos Rd. (San Clemente) 84 Comment
  IRVC28914  Lupinus adsurgens R. E. Reifner 1994-5-22 94 384 Orange San Onofre State Beach; N boundary, W of Pico Ave. Southern Coastal Comment
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Nov 19 2013
  POM199193  Lupinus albifrons Kenneth Beard 1934-03 s.n. Orange Hill E. of Dlacentia. Comment
  RSA652742  Lupinus bicolor subsp. microphyllus R. B. Newcom 1948-4-24 26 Orange 3 miles NW of Irvine Park 45 Comment
  IRVC22012  Lupinus bicolor subsp. umbellatus Fred M. Roberts, Gordon Marsh 1985-3-12 1506 Orange mesa west of Ave. Pico and north of El Camino Real, 3.2km SSE Coyote Bluff; 0.6km E Bench Mark 16 (sect. 32), San Clemente 37 Comment
  RSA184093  Lupinus bicolor subsp. umbellatus I. L. Wiggins 1966-3-22 20546 Orange Silverado Canyon about 5 miles above Ranger Station, Cleveland National Forest. Comment
  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
  RSA788819  Lupinus excubitus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49802 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR234148  Lupinus excubitus Dick Newell, Judy Booth 2012-5-6 248 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.2 miles NE of Maple Springs gate, Cleveland National Forest 695 Comment
  UCSB47631  Lupinus excubitus Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail; on north side of road; 0.4 km. NNE Falcon Group Camp (near Blue Jay CG); Santa Ana Mtns. 1067 Comment
  IRVC2308  Lupinus excubitus var. hallii B. Mawdsley 1965-5-2 s.n. Orange Cleveland National Forest; Silverado [Canyon]. Santa Ana Mountains Comment
  POM2477  Lupinus excubitus var. hallii Edward L. Greene 1903-4-1 4102 Orange Anaheim Comment
  RSA3253  Lupinus excubitus var. hallii B. D. Stark 1931-4-18 1939 Orange mouth of Gypsum Canyon, Santa Ana Mts. Comment
  RSA0027775  Lupinus excubitus var. hallii Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49692 Orange Northern Santa Ana Mountains: Sierra Peak 900 Comment
  RSA0042559  Lupinus hirsutissimus Paul Shirokawa 1998-4-24 6 Orange Cleveland National Forest; Trabuco Ranger District, 2.9 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 975 Comment
  LA205128  Lupinus latifolius W. E. Pequegnat; August 1937 34 Orange Santa Ana Mountains, Santiago Peak, Bear Springs Comment
  RSA413752  Lupinus latifolius subsp. parishii N. C. Cooper 1949-5-1 3949 Orange San Juan Canyon 610 Comment
  RSA797239  Lupinus longifolius Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49801 Orange Santa Ana Mountains: Trabuco Canyon Comment
  SEINET6932686 Image available Lupinus nanus W. P. Vestal, A. G. Vestal 1955-3-24 3455 Orange Trabuco Canyon, ca. 5 miles east of El Toro. Comment
  RSA722341  Lupinus sparsiflorus Unspecified s.n. Orange Orange County park 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
  RSA722339  Lupinus sparsiflorus R. H. McArthur 1934-3-25 s.n. Orange Field W. of Irvine Park. Comment
  IRVC16567  Lupinus sparsiflorus subsp. sparsiflorus Gordon A. Marsh, Karlin G. Marsh 1978-5-2 s.n. Orange Santa Ana Mountains; Silverado Truck Trail. Peninsular Ranges 884 Comment
  IRVC14753  Lupinus sparsiflorus subsp. sparsiflorus A. S. Boughey 1968-4-16 227 Orange Lower Modjeska Canyon, Fleming property. Sana Ana Mountains Comment
  RSA113262  Lupinus sparsiflorus subsp. sparsiflorus E. K. Balls 1955-4-4 20426 Orange San Juan Creek along Hwy 74, San Juan Capistrano to Elsinore. 46 Comment
  IRVC2321  Lupinus succulentus Anonymous 1965-4-18 Orange Trabuco Canyon. Santa Ana Mountains Comment
  SDSU5016  Lupinus succulentus R. M. Beauchamp 1968-2-17 769 Orange On north side of Trabuco Rd., opposite Catholic cemetery. Comment
  UC1287106  Lupinus succulentus C. L. Hitchcock 1966-3-15 24133 Orange 1/2 mi e Brea; e of Brea Comment
  RSA0055061  Lupinus succulentus Jim Shevock 1971-3-8 757 Orange Trabuco Canyon, Santa Monica Mountains. 396 Comment
  RSA0058062  Lupinus succulentus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49660 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA263661  Lupinus succulentus E. W. Lathrop 1966-3-23 6106 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuca District. Comment
  IRVC2353  Lupinus truncatus A. S. Boughey 1965-3-9 18 Orange San Joaquin Hills. Southern Coastal Comment
  RSA678723  Lupinus truncatus Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5852 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  SEINET7062958  Lychnis coronaria A. G. Vestal 1947-6-12 s.n. Orange Santiago Creek Valley 0.4 mile below Silverado Canyon Fork. UTM Zone 11, 438682mE, 3733866mN. (WGS84/NAD83). 384 Comment
  CAS-BOT-BC383071  Lycium brevipes R. E. Riefner, Jr. 2012-1-16 12 -7 Orange City of Newport Beach, Corona del Mar, Buck Gully, near LIttle Corona Beach, slope adjacent to restroom facility, vicinity of Poppy Ave. and Ocean Blvd. 15 Comment
  CAS-BOT-BC383072  Lycium brevipes var. hassei R. E. Riefner, Jr. 2014-4-12 14 -77 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
  OBI9188  Lycium californicum Dieter H. Wilken, Timothy LeBlanc 1966-1-7 621 Orange Dana Point, N of San Juan Capistrano 3 Comment
  RSA0073647  Lycium californicum Fred M. Roberts 2010-3-12 7176 Orange Southeast Coast: DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  UCR240186  Lycium californicum R. E. Riefner Jr. 2012-11-24 12- 558 Orange South Coast, city of San Clemente, Presidio Ave. c. 0.2 mi south of Ave. Pico 34 Comment
  RSA700255  Lycopersicon esculentum Fred M. Roberts 2003-7-8 5959 Orange Coastal Plains and Basins; Los Angeles Basin region; Orange Park Acres, along Santiago Creek, 0.5 km E Cannon Road and 0.3 km n Santiago Canyon Road. 117 Comment
  RSA0014844  Lythrum californicum Scott D. White 1998-5-31 6570 Orange University of California Irvine Campus, Southwest of Farm School site (now proposed as Student Rec. Ctr.). 37 Comment
  RSA0014840  Lythrum californicum F. W. Peirson 1924-8-29 5066 Orange 4 miles south of Santa Ana. Comment
  SEINET12197184  Lythrum californicum S. A. Thompson, Rawlins, J. E. 1988-8-27 5263 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  CLARK-A1528-5622  Madia sativa John C. Roos 1960-5-30 Orange Santa Ana Mountains Comment
  CLARK-A1528-5623  Madia sativa John C. Roos 1960-5-30 Orange Santa Ana Mountains Comment
  POM124505  Malacothamnus fasciculatus L. R. Abrams 1918-5-26 s.n. Orange Near Laguna Beach Comment
  POM95353  Malacothamnus fasciculatus F. W. Peirson 1925-4-22 5748 Orange 5 miles south of Laguna Beach Comment
  POM8303  Malacothrix glabrata P. A. Munz, R. D. Harwood 3384 Orange Temescal Canyon. 366 Comment
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Jul 6 2014
  RSA717705  Malacothrix saxatilis Fred M. Roberts 2008-5-16 6978 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
  UCR103718  Malacothrix saxatilis B. G. Pitzer, T. Tennant 1997-11-8 3371 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
  RSA789584  Malacothrix saxatilis var. tenuifolia R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49656 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA94955  Malacothrix saxatilis var. tenuifolia F. W. Peirson 1919-11-8 1482 Orange Aliso Creek. 0 Comment
  UCSB34482  Malephora crocea Ferren, Wayne 1980-8-27 Orange Newport Backbay; just W of Backbay Drive, ca. 2 km. NE of Rt. 1, Newport Beach Comment
  SJSU376  Malosma laurina A. W. Jacobs 1938-8-4 Orange Trabuca Canyon Rd, Santa Ana Mts, c. 6.5 mi NE of El Toro Comment
  UCR140791  Malosma laurina Robin G. Marushia 2004-5-4 017 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  SEINET10870270  Malosma laurina Charlene A. Bennett 1976-7-21 Bennett 435 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  RSA221067  Malus sylvestris E. W. Lathrop 1966-4-6 6133 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA716498  Malva nicaeensis Fred M. Roberts 2005-5-13 6189 Orange San Juan Capistrano; Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  HSC15991  Malva parviflora D. W. Snell 1964-3-22 2 Orange 1/2 mi. S of Imperial Hwy., 1 mi. W of Yorba Linda. Comment
  RSA5948  Malva parviflora Carl B. Wolf 1932-7-7 3860 Orange 0.5 mi E of Los Alamitos Blvd and 300 ft S of Bryant ave. (300ft S & 100 ft E of NW corner of SW 1/4 sect 29) 8 Comment
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Apr 9 2014
  RSA657743  Malva parviflora Ken Greby 1985-4-18 22 Orange alongside Laguna Canyon Rd. approx. 1.5 km. NE from El Toro Rd. 46 Comment
  RSA77178  Malvella leprosa F. W. Peirson 1924-5-31 4646 Orange Laguna Canyon, near Laguna Beach. 107 Comment
  RSA733980  Marrubium vulgare Keith E. Hoffmaster 1926-12-18 422 Orange Santa Ana. Comment
  UCSB41789  Marrubium vulgare Marshall, Lawrence 1967-11-18 Orange West side of Peters canyon reservoir near the dam 304 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
  RSA148106  Marsilea vestita Arthur W. Haupt 1935-4-12 s.n. Orange Costa Mesa Comment
  RSA590719  Marsilea vestita R. E. Riefner 1994-4-15 94 -319 Orange Dana Hills, w ca 2 mi. of Cooks Reservoir Comment
  RSA594805  Marsilea vestita Fred M. Roberts, Doreen Stadlander, Ray Vizgirdas 1992-4-24 4838 Orange El Toro Marine Base: just west of Borrego Wash, 2.7 km SE Lambert Reservoir dam 166 Comment
  RSA923  Matricaria matricarioides J. T. Howell 1928-2-7 822 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  RSA202176  Matricaria occidentalis L. M. Booth 1932-5-12 1011 Orange Newport Bay. Comment
  CAS-BOT-BC60300  Matthiola incana James R. Shevock 1974-2-26 3272 Orange Along California highway 1 (Pacific Coast Highway) at Bolsa Chica Beach. 3 Comment
  RSA771517  Meconella oregana var. denticulata Keith E. Hoffmaster 1934-4-22 181 Orange Santa Ana Mountains Comment
  IRVC2374  Medicago polymorpha D. Van Gorden 1965-5-9 s.n. Orange Silverado Canyon. Santa Ana Mountains; Comment
  IRVC27501  Medicago polymorpha Mark A. Elvin 2004-5-2 3411 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  POM348035  Medicago polymorpha E. S. Spalding 1923-1-1 s.n. Orange Laguna Beach. Comment
  RSA678730  Medicago polymorpha Fred M. Roberts, Laura Cohen 2000-3-24 5267 Orange Rancho Mission Veijo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 Comment
  SD241018  Medicago rigidula A. C. Sanders, Fred M. roberts 2008-3-25 34527 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  IRVC2390  Medicago sativa Laura Burns 1965-4-20 Orange Trabuco Canyon. Santa Ana Mountains Comment
  CAS-BOT-BC532580  Medicago truncatula A. C. Sanders; Fred M. Roberts 2008-4-8 34738 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 457 Comment
  UCR208447  Medicago truncatula R. E. Riefner Jr. 2008-3-24 08- 64 Orange South Coast, Rancho Santa Margarita, Tijeras Canyon, north c. 0.5 mi from Meandering Trails Road on Antonio Parkway 221 Comment
  RSA746473  Medicago truncatula R. E. Riefner Jr. 2007-4-12 07 -178 Orange City of Orange, SW portion of Irvine Regional Park; Irvine Park Rd. 188 Comment
  RSA746477  Medicago truncatula R. E. Riefner Jr. 2008-5-19 08 -92 Orange City of San Juan Capistrano, general vicinity of Antonio Pkwy. at Hwy 74 (Ortega Hwy). 88 Comment
  RSA746479  Medicago truncatula R. E. Riefner Jr. 2007-4-1 07 -166 Orange City of Laguna Niguel, Laguna Niguel Regional Park, general vicinity of La Paz Rd. at Aliso Creek. 70 Comment
  UCR230879  Melaleuca nesophila R. E. Riefner Jr. 2011-7-1 11- 82 Orange South Coast, city of Newport Beach, beach area west of the end of Cameo Shores Road, south c. 1 mi from Poppy Avenue 2 Comment
  SEINET10942437  Melica frutescens Robert F. Thorne, Earl W. Lathrop; G. Marshs 1977-6-4 Thorne 49768 Orange Santa Ana Mountains, Trabuco Canyon. Comment
  RSA734398  Melica imperfecta Keith E. Hoffmaster 1935-4-14 605 Orange Live Oak can. Comment
  RSA749487  Melica imperfecta Fred M. Roberts, Linda Farley 2008-3-28 6821 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber's Peak, Irvine Land Conservancy. 437 Comment
  UCR207526  Melica imperfecta O. F. Clarke 2006-5-6 s.n. Orange Peninsular Range; Santa Ana Mtns., Coal Canyon 305 Comment
  UCSB52460  Melica imperfecta Roberts, Fred 1983-3-10 Orange Dana Point Headlands; cliff above Dana Point Harbor, south of old Cove Rd.: 0.8 km S Richard Henry Dana School 60 Comment
  RSA696596  Melica imperfecta J. Russell Bruff 1927-3-16 2 -I Orange Gun Club. Comment
  UCR210375  Melilotus albus T. B. Salvato, Billy Deane 2006-10-16 1933 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  HSC15021  Melilotus indicus S. M. Clapp 1966-4-7 29 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon. 152 Comment
  IRVC2410  Melilotus indicus Debbie Frees 1965-3-13 s.n. Orange Silverado Canyon. Santa Ana Moutnains Comment
  IRVC2411  Melilotus indicus Janet Morgan 1965-3-22 Orange San Clemente; Elmore Ranch. Southern Coastal Comment
  IRVC2423  Melilotus indicus Chris Salcido 1965-5-8 s.n. Orange Newport Beach; [Newport] Back Bay. Southern Coastal Comment
  IRVC2429  Melilotus indicus H. Ellis 1965-3-18 s.n. Orange Newport Beach; Corona del Mar, Cameo Highlands. Southern Coastal Comment
  UCR191440  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-4-8 34722 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR193759  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-7-3 35711 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
  RSA0054855  Melilotus indicus Grace Adams 1938-5-29 s.n. Orange Santiago Creek. 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
  JEPS42777  Mentzelia micrantha John Thomas Howell 1927-7-3 2642 Orange Santa Ana Mts., Claymine Canyon 304 Comment
  UCR193464  Mentzelia micrantha A. C. Sanders, T. B. Salvato 2008-5-13 35354 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
  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
  UCSB49276  Mesembryanthemum crystallinum Hibbard, Doug 1977-3-4 Orange Black Bay Rd., 0.5 mile from its junction with Jamboree Blvd. Newport Beach Comment
  UC149125  Mesembryanthemum nodiflorum LeRoy Abrams 1903-4-20 3280 Orange near San Juan (along the seashore); Southern California Comment
  UC1929783  Micropus californicus Scott D. White, Amanda Duchardt 2003-3-27 8860 Orange SANTA ANA MOUNTAIN FOOTHILLS: Canyon bottom and west facing slopes above Canada Gobernadora. Comment
  UCR108287  Microseris douglasii subsp. platycarpha D. E. Bramlet 1993-4-4 2311 Orange UCI, adjacent to UCI Ecological Reserve, Adjacent to end of Los Trancos DR. and 500 ft. east of the reserve entrance. 46 Comment
  UCR208155  Microseris douglasii subsp. platycarpha Fred M. Roberts, D. E. Bramlet 2003-3-27 5621 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.79km N Sycamore Gate, 0.23km W Cristianitos Rd. 126 Comment
  UCR220126  Microseris douglasii subsp. platycarpha D. E. Bramlet 1993-3-27 2297 Orange South Coast, University of California, Irvine Campus, adjacent to the UCI Ecological Reserve, 150 ft. SW of the end of Los Trancos Dr. & 250 ft. E of the reserve entrance 61 Comment
  RSA651500  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-12 2972 Orange Fremont Canyon. The site is 183m south of the existing access road on the north ridge of the canyon. The site is 1.37km northeast of Santiago Creek. 336 Comment
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Feb 21 2007
  RSA649844  Microseris heterocarpa D. E. Bramlet 2000-4-12 2974 Orange Fremont Canyon. The site is 1.1 km south of the existing access road on the north ridge of the canyon. The site is 1.07 km northeast of Santiago Creek. 317 Comment
  RSA542589  Microseris lindleyi Fred M. Roberts 1988-3-15 3860 Orange Rancho Mission Viejo; Verdugo Canyon, 1.3 km SSW Lucan Survey Marker 201 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
  SEINET3078496 Image available Mimulus aurantiacus subsp. australis Geoffrey Matthews, Jim Hearne, Robin Maetche 1971-5-13 s.n. Orange 4 miles north of Morrill Valley on Hwy 74 Comment
  RSA734650  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
  UCR96610  Mimulus aurantiacus var. aurantiacus B. G. Pitzer 1996-4-30 2801 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  JEPS87335  Mimulus aurantiacus var. pubescens David M. Thompson 1992-5-16 1068 Orange 0.6 mi sw San Bernardino Co. line (along Carbon Canyon Road (Hwy 142)) 230 Comment
  POM311166  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-9 1909 -E Orange North slope Laguna Canyon ca. 4 mi. east of Laguna Beach. Comment
  RSA5275  Mimulus aurantiacus var. pubescens B. D. Stark 1933-1-21 4521 Orange San Clemente. 15 Comment
  UCD122401  Mimulus aurantiacus var. pubescens R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon. Comment
  RSA0113246  Mimulus aurantiacus var. pubescens Lyman Benson 1946-4-27 12057 Orange Corona del Mar. 15 Comment
  RSA16344  Mimulus aurantiacus var. puniceus Percy C. Everett 1935-6-18 7189 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  RSA298665  Mimulus aurantiacus var. puniceus D. C. Michener 1980-5-15 3661 Orange San Juan River drainage. Northwest facing slope in chaparral along unnamed creek. 500 Comment
  RSA602642  Mimulus aurantiacus var. puniceus B. Pitzer 1996-4-30 2801 Orange San Joaquin Hills Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy). 15 Comment
  LA209132  Mimulus aurantiacus var. puniceus W. E. Pequegnat; 1938-4-16 sn Orange Santa Ana Mountains, Indian Truck Trail 822 Comment
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Apr 10 2016
  RSA732274  Mimulus brevipes A. C. Sanders 2008-4-29 35125 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir. 335 Comment
  RSA790706  Mimulus brevipes L. C. Hull 1934-4-8 15 Orange Laguna Hills. Comment
  RSA17495  Mimulus clevelandii Percy C. Everett 1936-8-28 8233 Orange Main Divide Motorway, Head of Trabuco Canyon 1159 Comment
  UCR158807  Mimulus clevelandii A. C. Sanders, Mark A. Elvin 2005-9-2 31612 Orange Santa Ana Mtns., near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak 998 Comment
  UCR193504  Mimulus floribundus A. C. Sanders, T. B. Salvato 2008-5-13 35335 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
  RSA769081  Mimulus guttatus R. H. McArthur 1934-3-8 s.n. Orange Laguna Hills Comment
  UCR16027  Mimulus guttatus Steve Kulju 1974-5-27 s.n. Orange Peninsular Range; Santa Ana Mtns, San Juan Canyon, 16 mi SW of Lake Elsinore on State Hwy 74 488 Comment
  SEINET4095732  Mimulus guttatus E. D. Crow 1929-1 213 Orange Park south. Comment
  POM49740  Mimulus pilosus Helen D. Geis 1902-1 514 Orange [Unspecified] Comment
  RSA734914  Mimulus pilosus A. C. Sanders, Fred M. Roberts 2008-4-22 34992 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
  UCR220305  Mirabilis laevis Dick Newell, Don Millar, Jutta Burger 2010-3-16 011 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon Wash 250 m north of Hwy 241 toll road 201 Comment
  RSA465231  Mirabilis laevis var. crassifolia M. B. Dunkle 1933-3-5 3078 Orange San Juan Canyon 305 Comment
  UCD98396  Mirabilis multiflora G. H. Vansell 1933-6-30 s.n. Orange location unknown. 914 Comment
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Sep 26 2020
  UCR271005  Modiola caroliniana Mitch Provance, Travis Kegel 2016-4-8 416- 58 Orange Coastal Regions of Southern California, Newport Beach, W of the W end of 16th Street, and E of the Banning Oil Fields 32 Comment
  CDA3375  Mollugo verticillata G. D. Barbe 1973-8-9 1695 a Orange Bordier s Nursery, 7231 Irvine Blvd., Santa Ana (Tustin). 0 Comment
  CHSC30534  Monanthochloe littoralis T. B. Devine 1980-4-2 626 Orange On Back Bay Dr. E. of Upper Newport Bay ca 2 mi. N. of jct. with Jamboree Rd. Comment
  RSA0042247  Monanthochloe littoralis Valerie Soza, LeRoy J. Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1102 Orange Seal Beach National Wildlife Refuge: Seal Beach U.S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  JEPS127360 Image available Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31615 Orange Santa Ana Mountains: Upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks. Santiago Peak 7.5' Qua. Comment
  RSA539413  Monardella lanceolata var. lanceolata Fred M. Roberts 1988-6-10 4102 Orange Santa Ana Mountains: Modjeska Peak, 0.4 km WSW summit. 1621 Comment
  POM257044  Monardella lanceolata var. lanceolata W. Pequegnat 1940-6-15 s.n. Orange Santa Ana Mountains: Modjeska Flat. 1372 Comment
  LA57164  Monardella macrantha subsp. hallii Carl B. Wolf; 1933-8-24 5406 Orange Santa Ana Mountains, along main divide motorway between Bedford Peak and Santiago Peak Comment
  RSA663203  Muhlenbergia asperifolia R. E. Riefner 2000-3-26 20 -150 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of major stream fork along W. channel drainage 335 Comment
  LA9673  Muhlenbergia microsperma LeRoy Abrams; 1903-4-18 3260 Orange near San Juan Capristrano Comment
  RSA542362  Muhlenbergia microsperma Fred M. Roberts 1988-5-13 3970 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout 439 Comment
  RSA684334  Muhlenbergia microsperma Scott D. White, Amanda Duchardt 2003-4-10 9015 Orange Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  SEINET3129566  Muhlenbergia microsperma L. R. 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
  UCSB48199  Muhlenbergia rigens Roberts, Fred 1981-6-26 Orange Viejo Cyn., 0.4 km N Calif. Rte. 74; 2.7 km ENE San Juan Guard Station; Santa Ana Mts. 311 Comment
  RSA587118  Muilla maritima R. E. Riefner 1995-4-28 95 -110 Orange San Clemente State Beach. Comment
  CAS-BOT-BC515557  Muilla maritima LeRoy Abrams 1903-4-18 3263 Orange Southern California, Capistrano Comment
  JEPS1400  Nama stenocarpa L. M. Booth 1932-7-1 1235 Orange Anaheim Creek Anaheim Creek (Orange County Coast) Comment
  UC1607973  Nama stenocarpa Donald G. Nelson 1936-7-26 441 Orange on the mesa n of Newport Beach Costa Mesa (Costa Mesa) Comment
  CAS-BOT-BC259821  Nassella cernua LeRoy Abrams 1903-4-18 3268 Orange Capistrano Comment
  CAS-BOT-BC259822  Nassella cernua LeRoy Abrams 1903-4-18 3269 Orange Trabuco Canon [Trabuco Canyon], Capistrano Comment
  RSA725465  Nassella cernua Fred M. Roberts, Megan Lulow 2007-7-30 6577 Orange ridge where Gypsum, Blind, and Wier Canyons meet, 3.5 km E Robbers Peak, North Irvine Ranch Policy Area. 456 Comment
  CAS-BOT-BC259967  Nassella lepida Ira L. Wiggins 1966-3-2 20487 Orange Carbon Canyon about 1.5 miles above the dam Comment
  RSA598968  Nassella lepida Scott D. White 1997-3-28 4839 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA680735  Nassella lepida Scott D. White 2003-3-21 s.n. Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA732150  Nassella lepida A. C. Sanders, Fred M. Roberts 2008-4-22 35015 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
  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
  RSA682758  Nassella pulchra Scott D. White, Amanda Duchardt 2003-3-27 8852 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  CAS-BOT-BC60333  Nasturtium officinale John Thomas Howell 1927-7-15 2777 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  RSA689545  Nasturtium officinale R. E. Riefner 2002-5-4 20 -98 Orange Upper Newport Bay, Jamboree Rd at Bayview Dr. 15 Comment
  RSA468366  Navarretia prostrata Anstruther Davidson 1890-05 s.n. Orange Laguna Beach. Comment
  RSA780676  Nemacaulis denudata var. denudata Elizabeth A. Kempton 2006-5-5 304 Orange Roadside Pacific Coast Highway, near entrance to Bolsa Chica State Beach Ecological Park, outside of ecological boundary. 0 Comment
  LA9429  Nemacladus ramosissimus LeRoy Abrams; 1903-4-18 3268 Orange Capistrano Comment
  SEINET10939173  Nemacladus ramosissimus Philip A. Munz 1923-9-7 Munz 7769 Orange Santa Anna Mountains, on slopes along trail from Holy Jim Canyon to Santiago Peak 1128 Comment
  RSA704834  Nemophila menziesii Francis Battey s.n. Orange Laguna Hills. Comment
  UC484259  Nemophila menziesii C. B. Wolf 1931-3-6 1848 Orange 1 mi below Trabuco Camp Ground (Trabuco Canyon, w slope Santa Ana Mts.); w slope Santa Ana Mts., Trabuco Canyon 609 Comment
  UCR177440  Nemophila menziesii Scott D. White, Amanda Duchardt 2003-3-27 8865 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  CAS-BOT-BC478169  Nephrolepis cordifolia R. E. Jr. Riefner 2014-6-14 14 -171 Orange City of Newport Beach, Cliff Drive Park, along Cliff Drive, near Beacon Street 44 Comment
  IRVC152  Nephrolepis cordifolia Ed Hazen 1965-4-1 HS 537 Orange Trabuco Canyon Santa Ana Mountains Comment
  RSA0060643  Nephrolepis cordifolia Richard E. Riefner 2014-2-24 14 -64 Orange City of Dana Point, W ca. 0.1 mi from Island Way, Dana Point Harbor Dr., cliff slope immediately S of Santa Clara Ave. and Amber Lantern St. 3 Comment
  UC2041998  Nephrolepis cordifolia R. E. Riefner Jr. 2013-4-5 13 -59 Orange City of Yorba Linda, southbound 91-Freeway at 55-Freeway interchange ca. 0.6 mi W of Lakeview Ave Comment
  IRVC153  Nephrolepis exaltata L. Burns 1965-4-21 s.n. Orange Newport Beach; Lido Island Southern Coastal Comment
  SEINET10936050  Nerium oleander Charlene A. Bennett 1976-7-21 Bennett 428 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hill; some native shrubs, etc. 152 Comment
  RSA0020229  Nicotiana attenuata J. Vlahos 1933-1 s.n. Orange Orange Co. Park. 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
  RSA701605  Nicotiana glauca Minor Warne 1934-2-1 s.n. Orange Santa Ana Mountains Comment
  UC1286994  Nicotiana glauca C. L. Hitchcock 1966-3-15 24144 Orange 1.5 mi e Brea (Stearns Lease) Comment
  RSA184099  Nicotiana glauca I. L. Wiggins 1965-11-6 20348 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  POM20633  Nolina cismontana Philip A. Munz 1923-9-6 7728 Orange Madjeska s Ranch Comment
  RSA232073  Nolina cismontana C. W. Tilforth 1972-8-20 623 Orange Along County Rd. S19, between Cooks corner and O Neil Park Comment
  RSA615783  Nolina cismontana James C. Dice 1985-5-23 593 Orange Upper Borrego Canyon, along Santiago Canyon Rd., 1.8 km south of Modjeska Canyon Rd., Near 33 42 08N, 117 38 24W 440 Comment
  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
  RSA644977  Nolina cismontana R. E. Riefner 2000-4-15 20 -377 Orange Santa Ana Mtns. NCCP North Ranch Policy Plan Area. Along dirt road running N and parallel to Black Star Cy. Road. 396 Comment
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Jan 6 2018
  SEINET1910244  Nolina cismontana R. E. Riefner Jr. 2007-1 7 -256 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W fork Fremont Canyon, Donaldson Ranch area. 381 Comment
  UCR230220  Nolina cismontana Dick Newell, Ed Hill 2011-3-29 100 Orange Peninsular Range; Santa Ana Mtns., 200 yards NE of old coal mine, under power lines, off Coal Rd. below intersection with Upper Blind Cyn. Rd. 482 Comment
  SEINET4173438 Image available Nolina parryi E. W. Lathrop 1976-1 7506 Orange 4 miles northeastof Lake Irvine, Black Star Canyon, Cleveland Nat'l Forest, Trabuco District Comment
  UCD169807  Nolina parryi R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49684 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  JEPS89240  Nuttallanthus texanus Rimo Bacigalupi and P. C. Hutchison 1962-3-16 8232 Orange 2 mi n of Doheny Beach State Park (along U.S. 101); U.S. 101 Comment
  RSA98320  Oenanthe sarmentosa F. W. Peirson 1924-2-9 4525 Orange Between Wintersberg and the sea. Comment
  CAS-BOT-BC171490  Oenothera californica Carl B. Wolf 1931-3-25 1935 Orange Along the Santa Fe R.R., 1 mile west of Atwood 91 Comment
  CAS-BOT-BC171487  Oenothera californica Helen D. Geis 1902-3-1 s.n. Orange Santa Ana sand dunes Comment
  POM225239  Oenothera elata subsp. hirsutissima P. A. Munz 1936-6-30 14171 Orange 5 miles south of Garden Grove. Comment
  VVC1115  Oenothera laciniata A. C. Sanders, J. Mac 1998-10-17 22268 Orange Coastal flats, Bolsa Chica, near Bolsa Bay, south of Warner Ave., E of the Pacific Coast Highway .3 Comment
  RSA658206  Oenothera speciosa T. A. Daubert 1991-5-26 671 Orange Tucker Wildlife Sanctuary, Modjeska Canyon nature trail. Comment
  UC1005020  Oenothera xenogaura E. Johnson 1940-8-15 Orange 1.5 mi n of Placentia (Klokke Estate); Klokke Estate Comment
  UCR197687  Olea europaea A. C. Sanders, Fred M. Roberts 2008-9-18 36081 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  POM78162  Oligomeris linifolia F. M. Reed 1924-7-8 4899 Orange Bluff north of San Juan Point [Dana Point] Comment
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May 1 2011
  RSA696230  Opuntia X occidentalis Keith E. Hoffmaster 1927-6-5 s.n. Orange near Newport Comment
  SD152895  Opuntia ficus-indica Steve Boyd, Tim Ross 1992-5-20 7465 Orange Southern Santa Ana Mtns, San Mateo Cyn Wilderness Area,western edge of wilderness in Lucas Cyn, along cyn floor from crossing of Lucas Cyn Trail,upstream Ao mile to spur trail leading to old mining habitations in side cyn.About old homesteads. (IPB 9/07) 305 Comment
  POM284094A  Opuntia littoralis Lyman Benson 1955-10-17 15598 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  POM288522B  Opuntia littoralis Lyman Benson 1955-10-17 15602 Orange Laguna Beach (north end of town). 30 Comment
  RSA503510  Opuntia littoralis E. W. Lathrop 1977-7-8 7667 Orange Santa Ana Mountains; 1 mile west of San Juan F.S. Ranger Station on the Ortega Hwy. Comment
  UCR196298  Opuntia littoralis A. C. Sanders, T. B. Salvato 2008-5-13 35376 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
  RSA317752  Opuntia oricola David Walkington 1963-5-17 170 Orange Above intersection of Dana Cove Park rd. and Green Lantern Dr., continuous slope with Dana Cove Park Rd. Dana Point. 61 Comment
  POM285342  Opuntia prolifera Lyman Benson 1955-10-17 15594 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 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
  CAS-BOT-BC355771  Osmadenia tenella Carl B. Wolf 1936-6-17 7946 Orange Santa Ana Mts., along Ortega Highway, 5 6/10 mi. above San Juan Capistrano 76 Comment
  CAS-BOT-BC355775  Osmadenia tenella L. R. Abrams 1901-6-16 1789 Orange Trabuco Canon [Canyon] Comment
  CAS-BOT-BC355772  Osmadenia tenella F. W. Peirson 1926-4-25 6643 Orange Upper part of Laguna Canyon Comment
  IRVC24743  Osmadenia tenella Fred M. Roberts 1986-4-29 2823 Orange Turtle Rock, above corner of Ridgerout Dr. and Turtle Rock Dr., 1.1km SE French Hill, Irvine 141 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
  UCR230239  Oxalis albicans subsp. pilosa Dick Newell, Don Millar 2011-3-15 086 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
  UCR261709  Oxalis californica Dick Newell, Judy Booth 2015-2-22 390 Orange Peninsular Range; Santa Ana Mtns. Foothills, Caspers Wilderness Park, on Caspers Park Rd. about 3/4 mile NW of Rangers Hqtrs. 137 Comment
  SEINET3347204 Image available Oxalis cernua 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
  RSA7752  Oxalis pes-caprae E. R. Johnson 1932-07 s.n. Orange Edge of orange grove along river bottom, Rancho Santa Ana Comment
  OBI30391  Oxalis pes-caprae B. Thomas 1967-12-30 147 -74 Orange 4 yds S of Cal State Fullerton's Science Bldg entrance in the fl bed Comment
  RSA652144  Oxalis pes-caprae Gary Guntle 1971-5-16 s.n. Orange Placentia, Kraemer Ave and Bastanchury Road. Orange orchard. 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
  RSA761791  Oxytheca trilobata Robt. Allen 2003-6-22 12279 Orange Along North Main Divide Road, 6.3 road miles north of Falcon Group Campground, circa 2.43 air miles northwest of Los pinos Saddle. 1334 Comment
  CAS-BOT-BC121214  Paeonia californica C. B. Wolf 1931-3-6 1842 Orange Trabuco Canyon, 1/2 mi. above Trabuco oaks, west slope of the Santa Ana Mtns. Upper Sonoran. 457 Comment
  RSA17142  Paeonia californica Carl B. Wolf 1936-6-17 7949 Orange Santa Ana Mts., along Ortega Hwy, 6/10 mi below San Juan Hot Springs. 183 Comment
  RSA302  Paeonia californica J. T. Howell 1928-2-6 809 Orange Claymine Canyon, Sierra Peak, Santa Ana Mts. 244 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
  OBI82297  Pallenis maritima R. E. Riefner 2011-7-1 11 -86 Orange City of Newport Beach, rocky beach between Shorecliff Rd. and Cameo Shores Rd. 2 Comment
  UC2014877  Pallenis maritima R. E. Riefner Jr. 2011-6-25 11 -74 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. Comment
  UCR240167  Pallenis maritima R. E. Riefner Jr. 2011-7-1 11- 79 A Orange South Coast, city of Laguna Beach, Aliso Creek Beach, rocky shore and bluff between Aliso Beach Park and West Street 7 Comment
  UCR241100  Pallenis maritima R. E. Riefner Jr. 2010-1-2 10- 03 Orange South Coast, City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 2.5 Comment
  RSA697732  Panicum capillare Anonymous 1928-1 6 Orange Santa Ana River flats. Comment
  UCR2620  Panicum capillare F. M. Reed 1927-10-13 5624 Orange Transverse Range; Santa Ana Mtns; Santa Ana River Canyon, Santa Ana River channel above Sulphur Slide [Hill] 152 Comment
  RSA724032  Panicum dichotomiflorum subsp. dichotomiflorum R. E. Riefner 2005-10-27 5 -735 Orange City of Yorba Linda, Santa Ana River near Yorba Linda Regional Park. 98 Comment
  JEPS45889  Parapholis incurva L. M. Booth 1932-5-12 1009 Orange Newport Bay Comment
  RSA542524  Parietaria hespera var. californica Fred M. Roberts Jr. 1989-3-22 4223 Orange San joanquin Hills: Temple hill, Dripping Springs Cave, lateral to Wood Canyon; 2.6 km S moulton Peak. 76 Comment
  IRVC22980  Parkinsonia aculeata Karlin G. Marsh 1986-9-12 s.n. Orange Yorba Linda; Santa Ana Canyon, Santa Ana River, north side, Featherly Park south of Esperanza Rd. Santa Ana Mountains 105 Comment
  IRVC24070  Parkinsonia aculeata Fred M. Roberts 1985-8-23 2175 Orange Mission Viejo; San Diego Fwy. (I-5), 0.9km N Oso Pkwy., on west side. Southern Coastal 121 Comment
  RSA0088873  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
  RSA702938  Paspalum dilatatum Scott D. White 2004-7-7 10604 Orange Laguna Niguel. 61 Comment
  UCR44904  Paspalum dilatatum B. G. Pitzer, L. F. LaPre 1986-10-20 319 Orange City of Irvine, Drainage channel near intersection of Irvine Blvd. and Sand Canyon Avenue. 91 Comment
  SD245212  Paspalum distichum R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49568 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  RSA766071  Paspalum pubiflorum R. E. Riefner Jr. 2009-11-11 09 -237 Orange City of Mission Viejo, Oso Creek, ca. 1.4 mi N of Paseo De Colinas on Camino Capistrano. Rip-rap rocks near a waste water treatment plant. 88 Comment
  OBI74742  Paspalum vaginatum R. E. Riefner, Jr and K. Campbell, K. Campbell 2008-8-31 08 -267 Orange City of Irvine, tidal portion of San Diego crk, immediately E of Hwy 73 overpass 1 Comment
  RSA733048  Paspalum vaginatum R. E. Riefner 2005-7-9 05 -543 Orange City of Mision Viejo, Oso Creek, ca. 0.5 mi N of Paseo de Colinas on Camino Capistrano 86 Comment
  RSA733053  Paspalum vaginatum R. E. Riefner 2005-7-9 05 -545 Orange City of Mision Viejo, Oso Creek, ca. 1.4 mi of Paseo de Colinas on Camino Capistrano. 86 Comment
  RSA733138  Paspalum vaginatum R. E. Riefner 2007-10-17 7 -439 Orange City of Dana Point, Dana Point Harbor, Dana Point Harbor Dr. near Puerto Pl. 10 Comment
  UC1543029  Pectocarya linearis subsp. ferocula Donald G. Nelson 1935-3-16 167 Orange n Fullerton (across valley from Hillcrest Park) Comment
  SD247734  Pedicularis densiflora R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49685 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA783268  Pellaea andromedifolia J. D. Olmsted 1959-4-23 466 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  RSA631394  Pellaea mucronata var. mucronata Valerie L. Soza, LeRoy Gross 1999-6-7 477 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA0093405  Pennisetum clandestinum D. E. Bramlet 2009-11-20 4416 Orange South Coast: San Diego Creek between Irvine and Newport Back Bay. 4 Comment
  UCR266687  Pennisetum clandestinum D. E. Bramlet 2009-11-20 4416 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  RSA0014064  Pennisetum setaceum Fred M. Roberts 2008-5-30 7015 Orange Lomas de Santiago: Santiago Creek wash, 0.6 km SSE Silverado Sch., Irvine Ranch Conservancy. 314 Comment
  UCD89479  Pennisetum setaceum Peter H. Raven 1957-9-28 11395 Orange Laguna Beach. 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
  UCR181158  Pennisetum villosum R. E. Riefner Jr. 2003-11-30 03- 486 Orange South Coast, Santa Ana, 55 Freeway near Brookhollow St. 32 Comment
  RSA0054891  Penstemon cordifolius Keith E. Hoffmaster 1941-7-14 1251 Orange At Blanding Nursery, Santa Ana. Comment
  UCR234136  Penstemon heterophyllus Dick Newell, Peter Wetzel 2011-8-30 219 Orange Peninsular Range; Santa Ana Mtns., Black Star Canyon Rd. and Edison Rd. 502 Comment
  SEINET10334604  Penstemon heterophyllus subsp. australis Czarnecki 1966-5-25 113 Orange Old botanical gardens at the Ranco Santa Ana 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
  RSA0006171  Penstemon laetus Carl B. Wolf 1936-4-28 s.n. Orange Rancho Santa Ana, Santa Ana Canyon, Botanic Garden [Yorba Linda] 198 Comment
  UC718211  Penstemon laetus var. laetus Carl B. Wolf 1936-4-28 7778 Orange Santa Ana Canyon Botanic Garden s Adm. Bldg. (Rancho Santa Ana); , Santa Ana Canyon Botanic Garden 198 Comment
  LA203846  Pentachaeta aurea LeRoy Abrams; 1903-4-17 3259 Orange near El Toro Comment
  RSA644973  Pentachaeta aurea R. E. Riefner 2000-4-15 20 -380 Orange NCCP North Ranch Policy Plan Area. Main Divide Raod; S. of Gypsum Canyon and S of Windy Ridge. 518 Comment
  RSA0059338  Pentagramma triangularis L. M. Booth 1932-5-19 1066 Orange Newport Bay Comment
  POM4185  Petunia parviflora Philip A. Munz 1918-5-4 2203 Orange Laguna Beach. Comment
  RSA718965  Petunia parviflora Fred M. Roberts, Robert L. Allen 2006-10-8 6415 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 03.km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  UCR230840  Phacelia brachyloba Dick Newell, Judy Booth 2011-6-19 182 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, above Santiago Canyon 1086 Comment
  RSA594  Phacelia cicutaria var. hispida J. T. Howell 1927-7-26 477 Orange Claymine Canon near Sierra Peak. 244 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
  RSA562740  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 wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09), 305 Comment
  RSA650551  Phacelia cicutaria var. hispida Don Rimpau 1949-5-7 s.n. Orange Santa Ana Canyon. 183 Comment
  RSA741474  Phacelia cicutaria var. hubbyi R. E. Riefner Jr. 2008-5-13 8 -76 Orange Near City of Orange, W side of Hicks Haul Rd, Irvine Ranch Reserve, Management Area 11.. Comment
  RSA798544  Phacelia davidsonii Robert F. Thorne, E. W. Lathrop 1977-5-18 49745 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  RSA699578  Phacelia distans Dorothy Sammis s.n. Orange Silverado Canyon Comment
  RSA751985  Phacelia distans Fred M. Roberts 2008-3-26 6800 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  UC718113  Phacelia distans C. B. Wolf 1935-4-7 6320 Orange San Juan Hot Springs Santa Ana Mts., San Juan Hot Springs Canyon (at mouth of canyon) 213 Comment
  UCR224159  Phacelia distans Fred M. Roberts 2008-3-20 6789 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 60 Comment
  UCR230241  Phacelia distans Dick Newell, Don Millar 2011-3-15 085 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, top of Agua Chinon Wash along Limestone Cyn. Rd. 454 Comment
  RSA603  Phacelia imbricata subsp. bernardina J. T. Howell 1928-5-12 965 Orange Between Aliso Canyon and Botany Garden. 366 Comment
  RSA2095  Phacelia imbricata subsp. bernardina E. R. Johnson 1931-6-1 2233 Orange Roundtop, Rancho Santa Ana. 457 Comment
  RSA648195  Phacelia minor Karl Price 1988-5-7 38 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
  UC1377699  Phacelia minor John Ingram 1960-3-29 268 Orange roadsides across from O'Neill Park; Trabuco Canyon Comment
  UCSC001518  Phacelia minor Peter Kamb 1948-6-19 1111 Orange Southeast slope of the Santiago Peak Santiago Peak - Santa Ana Mts. - county listed as "Orange County-Riverside County" on primary lable 1219 Comment
  RSA0126619  Phacelia parryi Fred M. Roberts 2012-4-24 7515 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
  UCR193841  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-7-16 35861 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  UCR233740  Phacelia parryi Fred M. Roberts 2008-6-26 7062 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge along West Loma Ridge Road, c. 1 km north of Haul Road, 2.5 km NNW of Bee Peak, Irvine Ranch Land Conservancy 382 Comment
  UCR263590  Phacelia parryi Ed Kentner 2012-4-5 126 Orange Lomas de Santiago, Whiting Ranch Wilderness Park 330 Comment
  UCSB52927  Phacelia parryi Roberts, Jr., Fred 1983-3-16 Orange Laguna Beach; Sycamore Hills, central ridge, 1.1 km. NNE jct. El Toro and Laguna Canyon Rds.; 5.4 km. ESE Signal Peak 156 Comment
  RSA0003878  Phacelia ramosissima var. austrolitoralis J. T. Howell 1927-7-17 421 Orange Near Laguna Beach Comment
  RSA6064  Phacelia ramosissima var. latifolia Carl B. Wolf 1932-6-13 3716 Orange Storm drain at Malvern and Nicholas Aves; Fullerton. 53 Comment
  UCR124020  Phacelia ramosissima var. ramosissima George K. Helmkamp, E. A. Helmkamp 2001-6-20 6811 Orange Peninsular Range; Santa Ana Mtns., Ortega Highway, 1.6 mi north of Lucas Cyn Rd., near Cleveland National Forest 213 Comment
  CAS-BOT-BC250615  Phalaris minor Carl B. Wolf 1932-7-7 3854 Orange Bryant Ranch, Bixby Ave., 3/10 mi. E. of Los Alamitos Blvd., about 250 ft. E. of S.W. corner of N.W. 40 of N.E. of Sect. 31 T4S R11W 48 Comment
  IRVC8437  Phalaris minor J. B. Anderson 1966-4-18 597 Orange Irvine; MacArthur Blvd. near Red Hill Road. Southern Coastal Comment
  POM356937  Phalaris paradoxa Anstruther Davidson 1916-6-1 3156 Orange Brea Ranch Comment
  RSA296796  Pholistoma auritum Lyman Benson 1947-4-27 12339 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  UCR261684  Pholistoma auritum var. auritum Dick Newell, Don Millar 2015-3-24 392 Orange South Coast, San Joaquin Hills, on Willow Canyon Trail 0.2 mi. west of Laguna Coast Wilderness Park entrance off Laguna Canyon Rd. 88 Comment
  UCR234153  Phoradendron macrophyllum Dick Newell 2011-12-27 222 Orange Peninsular Range; Santa Ana Mtns. Region, Lomas de Santiago, along Limestone Canyon Rd. at junction to Dripping Springs Trail 311 Comment
  RSA434510  Phyla lanceolata Albert J. Perkins 1912-10-15 s.n. Orange Peatlands near head Newport Bay. Comment
  UC25108  Phyla lanceolata A. J. McClatchie 1896-6-20 Orange Westminster Comment
  RSA682950  Phyllospadix torreyi E. Yale Dawson 1957-11-23 17817 Orange Corona del Mar, Orange, Co. Comment
  RSA684000  Phyllospadix torreyi N. C. Cooper 1942-11-8 2019 Orange Laguna Beach. Comment
  RSA684036  Phyllospadix torreyi E. Yale Dawson 1958-11-10 19789 Orange First rocky spit N of Dana Point. Station no 22. 270-300 ft from shore base point. Comment
  RSA684059  Phyllospadix torreyi E. Yale Dawson 1958-1-5 18105 Orange E side of Crystal Cove. Station no 42. 120 ft from shore base point. Comment
  UCR19247  Phyllospadix torreyi John C. Roos 1960-8-27 s.n. Orange Dana Point Comment
  POM1012  Phyllospadix torreyi D. L. Crawford 1916-7-28 s.n. Orange Laguna Beach Region Comment
  UCR266401  Physalis crassifolia D. E. Bramlet 1994-4-30 2374 Orange South Coast; San Joaquin Hills, small knoll SE of the Sand Canyon Reservoir, 524 ft. east of the bottom of Shady Canyon, near Irvine 80 Comment
  RSA5330  Pickeringia montana var. tomentosa B. D. Stark 1933-1-4 4484 Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  RSA759537  Pickeringia montana var. tomentosa Robert Allen, Nancy Heuler 2007-5-19 s.n. Orange San Juan Trail circa 2.6 air miles below (SW of) trailhead at southern edge of Blue Jay Campground, circa 2.1 air miles above (NE of) trailhead at Hot Springs Canyon 848 Comment
  POM294145  Picris echioides Lyman Benson 1945-6-14 11796 Orange Santa Ana, Vacant lot, Pacific Slope 61 Comment
  NY34650  Pinus attenuata C. B. Wolf 1934-12-21 6259 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  OBI6107  Pinus attenuata Carl B. Wolf 1934-12-21 6259 Orange S slope of main ridge, saddle NW of Sugarload Pk (Pleasants pk) 1-3/10 mi S of summit of Skyline Dr, Santa Ana Mts 1158 Comment
  SD13289  Pinus attenuata Carl B. Wolf 1934-12-21 Orange Santa Ana Mountains, northeast of Sugarloaf Peak (Pleasants Peak), along Main Street Trail 1160 Comment
  RSA0027777  Pinus attenuata Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49694 Orange Northern Santa Ana Mountains: Sierra Peak Comment
  MACF024423  Pinus canariensis Roberta Tiedman 1977-4-27 Orange In front of the Letters and Sciences building. Comment
Read comments
Nov 17 2015
  POM18082  Pinus coulteri Philip A. Munz 1923-9-7 7755 Orange Santa Ana Mts. Trail from Trabuco Canyon to summit. 1220 Comment
  UCR132891  Piperia cooperi Adrian Wolf 2000-4-14 446 Orange Santa Ana Mtns., North Ranch Policy Plan Area, 0.51 km SSE of Black Star Canyon Mine, North Baker Canyon Road 396 Comment
  RSA734904  Piptatherum miliaceum A. C. Sanders 2008-5-28 35438 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  SEINET5642647  Pittosporum tobira Shelby J. Wood 2013-3-9 9 Orange Huntington Beach, Central Park.; 0 Comment
  SD212526  Plagiobothrys acanthocarpus R. E. Riefner 2006-4-12 06 116 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Road 46 Comment
  UCSB48072  Plagiobothrys acanthocarpus Fritzke, Sue; Roberts, Jr., Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N of Dana Hills High School; 1.9 km. W of Marco Forster Junior High School 100 Comment
  RSA699337  Plagiobothrys arizonicus L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA682599  Plagiobothrys collinus var. californicus Scott D. White, Amanda Duchardt 2003-3-27 8863 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  UCR5140  Plagiobothrys collinus var. californicus Barbara T. Gittins, O. F. Clarke 1966-3-19 903 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  RSA450855  Plagiobothrys collinus var. gracilis Gordon Marsh 1978-3-17 s.n. Orange U.C. Irvine Ecological Preserve. 85 Comment
  UCR220956  Plagiobothrys nothofulvus Dick Newell, Don Millar 2010-3-16 13 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, above Agua Chinon at Box Canyon Rd, 2.81 miles north of Hwy 241 toll road and 2.77 miles east of 133 toll road 427 Comment
  RSA0045607  Plagiobothrys nothofulvus Keith E. Hoffmaster 1935-2-9 840 Orange Santa Ana Mts., El Toro. Comment
  RSA0054889  Plagiobothrys nothofulvus Keith E. Hoffmaster 1932-2-28 67 Orange Santa Ana Mts. Comment
  HSC16874  Plantago erecta S. M. Clapp 1966-4-8 43 Orange 4 mi. into Black Star Canyon 183 Comment
  RSA1460  Plantago erecta E. R. Johnson 1929-4-11 1260 Orange Sierra Peak Trail. Comment
  RSA401987B  Plantago erecta Anstruther Davidson 1910-4-1 s.n. Orange Corona Del Mar. Comment
  RSA682593  Plantago erecta Scott D. White 1998-3-24 6232 Orange University of California, Irvine Campus: Site of proposed Research Park, Southwest of main campus circle, ca. halfway between Beerkeley Avenue and new freeway (Bonita Canyon). 24 Comment
  POM201755  Plantago lanceolata L. M. Booth 1932-7-18 1266 Orange Costa Mesa, Newport Bay Comment
  SD263668  Plantago major Jim Riley 2013-10-15 120 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  UC729884  Plantago major Carl B. Wolf 1932-7-7 Orange 0.5 mi e Los Alamitos Blvd. (Bryant Ranch, Bryant Ave, near town, n side of road opposite Bryant Ranch) Comment
  RSA698383  Plantago major Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  UC1618068  Plantago ovata Donald G. Nelson 1935-3-30 194 Orange On Tonner lease, mouth of Brea Canyon. Comment
  RSA763  Plantago ovata var. fastigiata J. T. Howell 1927-6-9 70 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA542455  Plantago rhodosperma Fred M. Roberts, Karlin G. Marsh 1988-4-25 3931 Orange San Joaquin Hills: East flank Pelican Hill, 0.9 kilometer SE summit. 120 Comment
  UCR235457  Plantago subnuda A. C. Sanders 2011-8-20 39889 Orange South Coast, city of Placentia, Tri-City Park on North Kraemer Blvd. at Golden Ave. 104 Comment
  RSA688865  Plantago virginica Fred M. Roberts, D. E. Bramlet 2003-4-10 5654 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, ridges west of Christianitos Cyn., 1.41km SW Gato Gate and 1.19km W Christianitos Rd. Along south-running ridge on old dirt road. 184 Comment
  RSA592105  Plantago virginica R. E. Riefner 1994-4-15 94 -324 Orange NE of cooks Reservoir, Dana Hills, City of Dana Point. 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
  RSA749040  Platanus X acerifolia A. C. Sanders, Fred M. Roberts 2008-8-7 35976 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  POM201790  Platanus racemosa L. M. Booth 810 Orange Santa Ana Canyon. Comment
  RSA401707B  Platanus racemosa F. R. Fosberg 1931-6-21 748 Orange Silverado Canyon. Santa Anita Mts. Comment
Read comments
Jun 27 2014
  RSA698372  Platanus racemosa R. H. McArthur 1934-2-17 s.n. Orange Gypsum Canyon. Comment
  RSA703087  Platanus racemosa Fred M. Roberts, Art Davenport 2003-9-11 6007 Orange Rancho Mission Viejo: Donna O'Neil Land Conservancy, tributary west of Cristianitos Cyn., 1.52 km NNW Sycamore Gate and 250 m W of Cristianitos Road. 152 Comment
  SD234464  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-7-3 35700 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir (Black Star Canyon 7.5' Q) 242 Comment
  RSA0025114  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-7-9 08 -220 Orange City of Laguna Beach, bluff area W. of West St. and Pacific Coast Highway. 5 Comment
  UCR222648  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08- 308 Orange South Coast, city of Laguna Beach, ocean bluff vicinity of West St. and Pacific Coast Highway 4 Comment
  UCR238457  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09- 151 Orange South Coast, city of Dana Point, beach near Salt Creek, vicinity of Ritz Carlton Resort 2.5 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
  RSA751406  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-4-28 07 -190 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Ln., and Polaris Dr. 8 Comment
  POM4883  Pluchea odorata D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. Comment
  RSA639704  Pluchea odorata Scott D. White 1998-12-10 720 Orange Brea: Tonner Canyon and adjacent slope, just east of 57 Freeway crossing. 137 Comment
  RSA933  Pluchea odorata J. T. Howell 1927-10-29 780 Orange Bryant Ranch near Long Beach. 15 Comment
  CAS-BOT-BC255536  Poa annua Ira L. Wiggins 1966-2-12 20441 Orange On W side of State College Blvd, opposite Electra Way, Fullerton Comment
  IRVC22697  Poa scabrella Fred M. Roberts 1985-5-9 1762 Orange Santa Ana Mountains: Upper McVicker Canyon, 1.8km NE Los Pinos Peak. Peninsular Ranges 1113 Comment
  IRVC22700  Poa scabrella Fred M. Roberts 1985-5-9 1784 Orange Santa Ana Mountains: Upper McVicker Canyon, 1.8km NE Los Pinos Peak. Peninsular Ranges 1113 Comment
  IRVC24789  Poa secunda Karlin G. Marsh 1989-3-4 s.n. Orange Lomas Ridge, ridge between Hicks and Rattlesnake Canyons. Lomas de Santiago 210 Comment
  RSA542549  Poa secunda Fred M. Roberts 1988-2-9 3777 Orange Lomas de Santiago: Loma Ridge, 1.3 km N Bee Survey Mark., UTM 3733600m N, 434800m E 381 Comment
  RSA751158  Poa secunda D. E. Bramlet 2008-4-1 4143 Orange Ridegeline in Upper Hicks Canyon, 136m S of the Haul Rd. 345 Comment
  RSA636103  Poa secunda subsp. secunda Valerie L. Soza, LeRoy Gross 1999-6-7 489 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA562742  Polycarpon depressum Steve Boyd 1992-5-19 7438 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
  RSA743463  Polycarpon tetraphyllum Fred M. Roberts 2008-7-10 7071 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
  UCR158809  Polygala cornuta subsp. fishiae A. C. Sanders, Mark A. Elvin 2005-9-2 31611 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 970 Comment
  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
  RSA616055  Polygala cornuta var. fishiae Scott D. White, Lonnie Curtis, Henry Miedema 1997-10-16 s.n. Orange East end of Silverado Canyon community, ca. 5 road miles E of jtn. of Silverado Canyon Rd. w/ Santiago Canyon Rd. Small Private Parcel within the Cleavland National Forest. 595 Comment
  UCR170138  Polygonum aviculare Jeffrey Ross, R. Zaka 1998-5-2 40 Orange South Coast, North side of San Joaquin Hills; William R. Mason Regional Park, near intersection of Yale Avenue and University Drive 27 Comment
  JEPS51305  Polygonum aviculare subsp. aviculare Lawrence M. Booth 1932-7-4 1254 Orange Newport Bay Comment
  CAS-BOT-BC414040  Polygonum aviculare subsp. aviculare John Thomas Howell 1927-6-21 2564 Orange North side of Santa Ana Canon [Canyon] 152 Comment
  RSA443825  Polygonum lapathifolium 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
  RSA731907  Polygonum lapathifolium Fred M. Roberts, Sandy Leatherman 2007-11-27 6672 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  POM12347  Polypodium californicum E. S. Spalding 1921-4-16 169 Orange Laguna Beach. Comment
  RSA85017  Polypodium californicum F. W. Peirson 1925-4-11 5729 Orange slope above mill, in Silverado Canyon, Santa Ana Mountains 914 Comment
  SD144152  Polypodium californicum Scott D. White 1996-12-20 4629 Orange Above Modjeska Canyon: proposed water tank site. 424 Comment
  IRVC14815  Polypogon monspeliensis A. S. Boughey 1968-7-9 399 Orange Upper Santiago Canyon. Santa Ana Mountains 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
  UCD91233  Polypogon monspeliensis A. A. Beetle 1942-4-19 3098 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  UCSB36120  Polypogon monspeliensis Roberts, Dar 1980-5-4 Orange North end of Camino Capistrano Rd., 2nd telephone pole from the end (near the sewage treatment plant) 30 Comment
  RSA747709  Polypogon viridis Fred M. Roberts 2008-5-16 6987 Orange Dana Point: Dana Point Hradland, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  CHSC108388  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2007-6-12 07 -253 Orange City of San Juan Capistrano, Vicinity of Calle Arroyo/Paseo Esteban at San Juan Creek. UTM (NAD83) 11S 0440131E 3707502N. 34 Comment
  JEPS34990  Porophyllum gracile John Thomas Howell 1927-7-28 2865 Orange Santa Ana Canyon, Rancho Santa Ana 152 Comment
  RSA780828  Potentilla glandulosa subsp. glandulosa Sandy Leatherman 2011-5-16 2011 -15 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
  POM202175  Pseudognaphalium biolettii L. M. Booth 1932-5-19 1067 Orange Newport Bay Comment
  POM358761  Pseudognaphalium biolettii M. B. Dunkle 1933-4-9 3282 Orange Dana Point. Comment
  UCR50083  Pseudognaphalium biolettii B. G. Pitzer, D. C. Hawks 1986-10-21 347 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
  UC484151  Pseudognaphalium leucocephalum J. T. Howell 1928-9-6 1208 Orange Rancho Santa Ana Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCR269241  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2015-12-9 15- 458 Orange South Coast, Rancho Mission Viejo, east of San Juan Capistrano north of Antonio Parkway and north of Ortega Hwy 74, near Sendero Field Park 55 Comment
  UCR281887  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2017-8-14 17- 404 Orange South Coast, city of San Juan Capistrano, San Juan Creek. Immediately east of Hwy I-5, north of San Juan Creek Road along San Juan Creek Trail 25 Comment
  CAS-BOT-BC356983  Pseudognaphalium luteoalbum Alice Eastwood 1936-4-5 s.n. Orange Bixby Botanic Garden, Santa Ana Comment
  RSA659893  Pseudognaphalium stramineum Karl Price 1988-5-21 42 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
  UCR144742  Pseudotsuga macrocarpa A. S. Boughey 1965-3-16 75 Orange Santa Ana Mtns., Silverado Canyon Comment
  UC1543165  Psilocarphus Donald G. Nelson 1935-4-15 300 Orange On road from Garden Grove to Cosa Mesa, converging near Costa Mesa, toward main highway from Santa Ana Comment
  RSA617798  Psilocarphus brevissimus R. E. Riefner 1998-4-3 98 -252 Orange Newport back-bay, west of Jamboree Rd. Comment
  UCR132512  Psilotum nudum A. C. Sanders, Mark A. Elvin 2003-11-9 27356 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  UCR158852  Psoralea macrostachya A. C. Sanders, Mark A. Elvin 2005-9-2 31605 Orange Peninsular Range; Santa Ana Mtns., mouth of Lion Canyon near Lower San Juan Picnic Area, San Juan Creek Canyon 427 Comment
  RSA733702  Pteridium aquilinum Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts Comment
  POM12169  Pteridium aquilinum var. pubescens P. A. Munz 1922-4-28 5041 Orange Leach Canyon, Santa Ana Mountains 670 Comment
  POM18129  Pteridium aquilinum var. pubescens P. A. Munz 1923-9-7 7735 Orange Santa Ana Mountains: on trail from Trabuco Canyon to Santiago Peak 1219 Comment
  RSA588892  Pteridium aquilinum var. pubescens Fred M. Roberts 1990-6-4 4662 Orange Santa Ana Mts. Hall Canyon, 1.8 km NNW Mustand Spring at east edge of flying B Ranch. 421 Comment
  JEPS57988  Pterostegia drymarioides Alice King 1908-4-18 Orange Santa Ana Mts. Comment
  RSA678493  Pterostegia drymarioides Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5850 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive. 76 Comment
  UCSB43273  Pterostegia drymarioides Fletcher, Martin 1980-3-29 Orange 0.5 miles west of Drakes Beach. Comment
  RSA407877  Pulicaria hispanica Walter Wisura, B. Busenberg 1987-7-23 4170 Orange Newport Bay at jctn. of Back Bay Drive and San Joaquin Hills Road. Comment
  RSA591808  Pulicaria hispanica P. H. Raven 1961-10-15 16847 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing. 61 Comment
  RSA750903  Pulicaria paludosa A. C. Sanders, Fred M. Roberts 2008-7-3 35710 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UCR192974  Pulicaria paludosa A. C. Sanders, Fred M. Roberts 2008-6-17 35463 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge on Hicks Canyon Haul Road, c. midway between Foothill Transportation Corridor and Santiago Cyn. Rd. 335 Comment
  UCR211082  Pulicaria paludosa Joseph Cahill 2009-8-21 3172 B Orange South Coast, Bolsa Chica Ecological Reserve 1 Comment
  UCD47720  Quercus X acutidens James Trumbley 1980-1 s.n. Orange Crystal Cove State Park, ca. 1 mile inland, in Moro Canyon, a coastal canyon between Laguna Beach and Corona del Mar, Orange County, California. 30 Comment
  RSA1494  Quercus X grandidentata E. R. Johnson 1929-4-11 1263 Orange Sierra Peak Trail. Comment
  RSA2110  Quercus agrifolia Carl B. Wolf 1931-3-6 1832 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  RSA476854  Quercus agrifolia Claire Kibbe 1936-07 19954 Orange Santa Ana Canyon. Comment
  CAS-BOT-BC86441  Quercus berberidifolia P. C. Everett; E. R. Johnson 1937-11-30 9379 Orange Santa Ana Mts., Bold Meadow at head of Claymine Canyon on slopes of Sierra Peak 762 Comment
  RSA0042530  Quercus berberidifolia Fred M. Roberts 2013-5-30 7779 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
  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
  RSA590958  Quercus berberidifolia Fred M. Roberts, Karlin G. Marsh 1991-4-10 4766 Orange Laguna Beach: South Laguna, Temple Hill, ridge between upper Hobo Canyon and Aliso Gorge, 1.7 km NW Niguel Hill summit. 213 Comment
  RSA663278  Quercus berberidifolia R. E. Riefner Jr. 2000-1-18 20 -103 Orange NCCP North Ranch Policy Plan Area: Main Divide Road; top of Gypsum Canyon. 518 Comment
  RSA7576  Quercus berberidifolia E. R. Johnson 1933-11 5559 Orange Rancho Santa Ana. Comment
  UCR132889  Quercus berberidifolia Adrian Wolf 2000-6-1 468 Orange Santa Ana Mtns., North Ranch Policy Plan Area, West Fremont Canyon 534 Comment
  RSA763061  Quercus chrysolepis E. W. Lathrop 1968-5-22 6931 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon. 396 Comment
  RSA7638  Quercus chrysolepis Carl B. Wolf 1933-11-3 5528 Orange Along main Divide Motorway on west slope of modjeska Peak. 1372 Comment
  UC1135378  Quercus chrysolepis H. E. Norton 1931-3-20 46 Orange Corona Quad. Comment
  UCSB52411  Quercus dumosa Roberts, Fred 1982-7-8 Orange LAGUNA NIGUEL: canyon near Pacific Island Dr., 1.4km ESE Aliso Peak: 1.1km NE Bench Mark 133 207 Comment
  UCSB52929  Quercus dumosa Roberts, Fred; Marsh, K. 1983-5-26 Orange Dana Point Headlands; north of Dana Strand Rd., 0.5 km. W Dana Point Harbor; 0.8 km. SSW Richard Henry Dana School 82 Comment
  IRVC21617  Quercus engelmannii Fred M. Roberts, Kelly P. Steele 1984-4-20 1344 Orange Rancho Mission Viejo: Hwy 74 near mouth of Trampas Canyon; 8.7km by road E San Juan Capistrano Southern Coastal 90 Comment
  RSA649690  Quercus engelmannii R. E. Riefner Jr. 2000-6-1 20 -453 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 473 Comment
  UCR113447  Quercus engelmannii R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 453 Orange Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 473 Comment
  CAS-BOT-BC383076  Quercus suber R. E. Riefner, Jr. 2005-4-15 05 -206 Orange City of Yorba Linda, Yorba Linda Regional Park along East La Palma Ave., W of Yorba Linda Blvd; Parking Lot #1 89 Comment
  SEINET7766843  Quercus wislizeni Unknown 1966-8-22 2389 Orange O'Neill State Park Comment
  IRVC24473  Quercus wislizeni var. frutescens Fred M. Roberts, R. L. Allen 1986-2-23 2595 Orange Santa Ana Mountains; W of Main Divide Truck Trail; 2.1km E Los Pinos Peak. Peninsular Ranges 1115 Comment
  RSA679225  Quercus wislizeni var. frutescens Fred M. Roberts 2003-6-25 5946 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  UC1135919  Quercus wislizeni var. frutescens A. Lewis May 1934 418 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quad. 1371 Comment
  UCR144740  Quercus wislizeni var. frutescens Gordon Marsh, Karlin G. Marsh 1985-9-27 s.n. Orange Santa Ana Mtns., Pine Canyon, 4.1 km NW of Modjeska Peak 805 Comment
  RSA625805  Ranunculus californicus Scott D. White 1998-4-24 6344 Orange Mission Viejo Area: Aliso Creek watershed, E of El Toro Rd. just N of jct. w/ Valley Vista Wy. Large proposed subdivision called 'Saddleback Meadow.' 305 Comment
  UCR16759  Ranunculus californicus David M. Peterson 1966-3-9 660309- 6 Orange 3 mi east of San Juan Capistrano on the road to Elsinore 306 Comment
  UCR261713  Ranunculus californicus Dick Newell, Don Millar 2015-3-24 395 Orange South Coast, San Joaquin Hills, on Willow Canyon Trail 0.2 mi. west of Laguna Coast Wilderness Park entrance off Laguna Canyon Rd. 88 Comment
  RSA678729  Ranunculus californicus var. californicus Fred M. Roberts, Laura Cohen 2000-3-24 5268 Orange Rancho Mission Veijo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 Comment
  IRVC1130  Raphanus raphanistrum L. McCabe 1965-4-17 Orange Laguna Canyon. Laguna Beach Comment
  IRVC22186  Raphanus raphanistrum Fred M. Roberts 1985-4-11 1645 Orange Dana Point Headlands; Weyerhaeuser Horticultural Research Station property. Southern Coastal 61 Comment
  UCR217293  Raphanus sativus Mark A. Elvin 2003-1-26 2235 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  UCR162344  Rhamnus alaternus Robert DeRuff 1988-1 405 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, Big Canyon 30 Comment
  RSA698606  Rhamnus californica Unspecified s.n. Orange Arch Beach. Comment
  LA207808  Rhamnus crocea subsp. ilicifolia W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA791876  Rhamnus ilicifolia Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49614 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station Comment
  SD247724  Rhamnus ilicifolia R. F. Thorne, E. W. Lathrop, W. Wisura. 1977-7-8 49360 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station. Comment
  UC1121846  Rhamnus ilicifolia R. St. John 1931-2-25 188 Orange Potreros Los Pinos Elsinore Quad. 762 Comment
  POM246507  Rhamnus tomentella subsp. cuspidata Carl B. Wolf 1933-8-24 5391 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  RSA743467  Rhaphiolepis indica Fred M. Roberts, Carol A. Roberts 2008-9-28 7116 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  RSA449  Rhus integrifolia J. T. Howell 1927-7-29 517 Orange Near east boundary of Rancho Santa Ana. 213 Comment
  RSA454  Rhus integrifolia J. T. Howell 1927-7-29 516 Orange Near east boundary of Rancho Santa Ana. 213 Comment
  RSA748165  Rhus integrifolia K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 8 Orange Cleveland National Forest, 3 mi. N of Main Divide Rd./NF3S04, off Hwy. 74. 950 Comment
  SD39754  Rhus integrifolia Edith A. Purer 1932-8-31 4875 Orange Along Route 101 Comment
  SEINET10692867  Rhus integrifolia Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 8 Orange Cleveland National Forest, 3 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. 950 Comment
  UCR159782  Rhus integrifolia Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; along marsh road 5 Comment
  RSA0054853  Rhus laurina Grace Adams 1938-5-28 s.n. Orange Santiago Creek. Comment
  IRVC83  Rhus ovata Hayden R. Williams 1966-6-12 HRW 578 Orange Costa Mesa; Orange Coast College Campus; Native Garden. Southern Coastal Comment
  LA62871  Rhus ovata W. Pequegnat; 1938-4-16 sn Orange Santa Ana Mts Comment
  RSA787501  Rhus ovata R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49695 Orange Northern Santa Ana Mountains: Sierra Peak Comment
  SEINET5642638  Rhus ovata Shelby J. Wood 2013-3-6 6 Orange Laguna Hills.; 0 Comment
  UCR76183  Rhus ovata B. G. Pitzer, S. Hemstreet 1992-5-27 1960 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
  RSA304731  Ribes californicum var. hesperium Jim R. Shevock 1972-1-16 1333 Orange Santiago Road, Santa Ana. 915 Comment
  RSA788180  Ribes californicum var. hesperium Doris Bowers 1971-4-19 1682 Orange Black Star Canyon Indian Site 762 Comment
  HSC25244  Ribes indecorum Richard Spjut 1972-2-22 2224 Orange Coastal strand, near S Laguna Beach along Hwy. 1 0 Comment
  RSA1175  Ribes indecorum B. D. Stark 1930-2-21 1475 Orange Black Star Creek. 457 Comment
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Sep 5 2013
  RSA1703  Ribes indecorum Carl B. Wolf 1931-3-6 1834 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  RSA439665  Ribes indecorum E. Crow 1929-2-22 213 Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. 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
  LA205488  Ribes malvaceum W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  SBBG52710  Ribes malvaceum C. Davidson 1977-5-18 5623 Orange Bear Springs, Santa Ana Mtns 1219 Comment
  RSA0021666  Ribes malvaceum L. C. Hull 1934-11-2 s.n. Orange Black Star Canyon Rd. Comment
  RSA0016317  Ribes malvaceum var. malvaceum Jim Riley 2011-1-3 1 Orange Caspers Wilderness Park (approx. 1 km west of Cleveland National Forest Boundary). Adjacent to Ridge Trail. 474 Comment
  LA205476  Ribes malvaceum var. viridifolium W. Pequegnat; 1938-4-3 sn Orange Santa Ana Mountains, Trabuco Canyon Comment
  RSA3132  Ribes malvaceum var. viridifolium B. D. Stark 1932-2-22 2662 Orange Canyon W of Roundtop, Rancho Santa Ana. 457 Comment
  SD255194  Ribes malvaceum var. viridifolium R. F. Thorne, E. W. Lathrop 1977-5-18 49730 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail. Comment
  CAS-BOT-BC186105  Ribes roezlii var. roezlii Carl B. Wolf 1941-8-15 11154 Orange Santa Ana Mts. Summit Santiago Peak 1706 Comment
  CAS-BOT-BC186106  Ribes roezlii var. roezlii L. R. A. 1901-6-1 1833 Orange Santiago Peak Comment
  RSA184097  Ribes speciosum I. L. Wiggins 1966-2-25 20472 Orange Firestone Boy Scout Reservation in hills E. of Brea. Comment
  UCR151029  Ribes speciosum Scott D. White 1997-5-6 5038 Orange Peninsular Ranges; Santa Ana Mtns., Lomas de Santiago; Santiago Canyon area; unnamed tributary to Santiago Creek flowing from the SW, directly west of Pancho Canyon 396 Comment
  UCR3197  Ribes speciosum Chuck Elliott 1964-5-2 s.n. Orange Los Angeles Basin Region, Carbon Canyon 61 Comment
  CAS-BOT-BC207157  Ricinus communis P. A. Munz 1918-5-5 2177 Orange Laguna Comment
  RSA749353  Ricinus communis Fred M. Roberts 2008-4-15 6902 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn., east ridge, Conservation Trail, 1.6 km ESE Rattlesnake Reservoir dam and 2.7 km WSW Bee Peak, Irvine Ranch Conservancy. 172 Comment
  UCR100446  Ricinus communis B. G. Pitzer 1996-4-30 2779 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UC1018189  Romneya coulteri J. Warren 1952-5-23 Orange Santa Ana Canon 457 Comment
  UCR150611  Romneya coulteri Scott D. White 1997-5-6 5035 Orange Peninsular Ranges; Santa Ana Mountains, Lomas de Santiago; Santiago Canyon, c. 1.5 mi N of Modjeska Canyon 366 Comment
  UCR193373  Romneya coulteri A. C. Sanders, T. B. Salvato 2008-5-13 35373 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  JEPS53807  Rorippa nasturtium-aquaticum Alice King 1908-1 Orange Santa Ana Comment
  CSUSB1433  Rorippa nasturtium-aquaticum John S. Davis 1972-5-6 72-05-06 24 Orange Newport Beach; 1.1 miles north from corner of San Jaquin Hills road and Back Bay road; beneath road bridge, along creek bed leading to marsh Comment
  CDA1082  Rorippa officinalis D. G. Kelch 2006-12-9 6 .544 Orange Along Newport Back Bay Dr. in side canyon. Comment
  JEPS53864  Rorippa palustris Alice King May 1908 Orange grounds of Shooting Club near Garden Grove; near Garden Grove Comment
  UCR192981  Rosa californica A. C. Sanders, Fred M. Roberts 2008-6-17 35481 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA0045576  Rosa californica Minor Warne 1934-4-21 s.n. Orange Limestone Canyon by Scout Camp. Comment
  RSA0045579  Rosa californica R. H. McArthur 1934-4-21 s.n. Orange Limestone Boyscout Camp. Comment
  SD133065  Rosmarinus officinalis A. C. Sanders 1990-10-6 10202 Orange Newport Bay, North Star County Beach area on SW end of bay, ca. 2 km inland of Hwy. 1. Clearly spontaneous, not planted. 0 Comment
  RSA221063  Rubus ursinus E. W. Lathrop 1966-5-1 6259 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  RSA0035069  Rubus vitifolius K. Kneen 1933-4-8 s.n. Orange Pacific Palisades. 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
  JEPS39877  Rumex crispus Lawrence M. Booth 1932-5-12 1051 Orange Newport Bay Comment
  SEINET3823332 Image available Rumex crispus Lawrence M. Booth 1932-5-12 1051 Orange Newport Bay Comment
  UCD101162  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. 304 Comment
  UCR102022  Rumex crispus B. G. Pitzer 1997-3-25 3013 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR16522  Rumex crispus J. S. Davis 1972-5-6 720506- 26 Orange Newport Beach, 1.1 miles north from corner of San Jaquin Hills Road and Back Bay Road. 200 yards east along creek bed 6 Comment
  UCR258356  Rumex crispus Fred M. Roberts 2014-4-21 7858 Orange South Coast, SAN JOAQUIN HILLS: Upper Laguna Canyon, Laguna Lake 1 (Upper Laguna Lake), north basin, c. 5.1 km ENE summit Signal Hill. Laguna Coast Wilderness Park 113 Comment
  RSA5827  Rumex crispus Carl B. Wolf 1932-6-28 3795 Orange Bryant Ranch, north boundary of field. 9 Comment
  UC536915  Rumex maritimus Lawrence M. Booth 1932-6-28 1220 Orange Bolsas Marsh Comment
  SD247490  Rumex obtusifolius A. C. Sanders, Fred M. Roberts 2008-7-7 36004 Orange Peninsular Range; Santa Ana Mountains: Weir Canyon at powerline crossing, 1.0 mi (air) SSE of Walnut Canyon Roservoir (Black Star Canyon 7.5'Q) 226 Comment
  UCR16515  Rumex salicifolius Steve Kulju 1974-5-27 s.n. Orange Peninsular Range; Santa Ana Mtns, San Juan Canyon, 16 mi SW of Lake Elsinore on State Hwy 74 488 Comment
  POM78664  Rupertia physodes Albert J. Perkins 1920-5-16 s.n. Orange Trabuco Canyon, Comment
  UCD92331  Rytidosperma Collector Unknown 1947-9-1 s.n. Orange Poverty Mesa near El Toro. Comment
  UCR219852  Sagina decumbens subsp. occidentalis Fred M. Roberts 1999-4-26 5201 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, ridge between Limestone Cyn and the Santiago Canyon Wash, 1.7 km SE Silverado School, 2.4 km north Bolero Lookout 411 Comment
  JEPS59855  Salicornia bigelovii Lawrence M. Booth 1932-7-29 1329 Orange Newport Bay Comment
  UCR130499  Salicornia bigelovii R. E. Riefner Jr. 2003-8-17 03- 335 Orange South Coast, Costa Mesa, salt marsh along Santa Ana River, west of Talbert Regional Park 11 Comment
  UCR14054.1  Salicornia subterminalis Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  UC1136468  Salicornia virginica A. Lewis Apr 1934 388 Orange Celery Corona Quad. 0 Comment
  UCR240096  Salicornia virginica Dick Newell 2012-9-29 300 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 2 Comment
  IRVC24541  Salicornia virginica J. Johnson 1976-8-10 Orange Newport [Back] Bay. Newport Beach Comment
  RSA478901  Salicornia virginica Anstruther Davidson 1907-09 1780 Orange Newport. Comment
  RSA5820  Salicornia virginica C. B. Wolf 1932-6-28 3802 Orange 25 ft. west and 600 ft. north of SE corner of SE 1/4 sect 29. 9 Comment
  RSA5874  Salicornia virginica C. B. Wolf 1932-9-13 4026 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
  RSA4496  Salix exigua Carl B. Wolf 1932-3-16 2714 Orange Santa Ana River bottom, Rancho Santa Ana (between pear and walnut groves). 122 Comment
  RSA539365  Salix exigua Fred M. Roberts Jr., Karlin G. Marsh 1989-3-14 4201 Orange San Juan Canyon, Lower San Juan Picnic Ground. 329 Comment
  RSA5779  Salix exigua Carl B. Wolf 1932-7-7 3845 Orange Bixby Ave., 0.7 mile W of Hansen road (0.2 mile W of SE corner of NE/4 of NW/4). 8 Comment
  RSA6452  Salix exigua Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA703731  Salix exigua Fred M. Roberts, David E. Bramlet 2004-7-30 6091 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn. along Cristianitos Ck., 1.1 km SSW Gato Gate and 0.32km W Cristianitos Road. 73 Comment
  RSA731935  Salix exigua Fred M. Roberts, Sandra Leatherman 2007-11-27 6675 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
  RSA751524  Salix exigua A. C. Sanders, Fred M. Roberts 2008-8-7 35988 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 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
  UC454761  Salix exigua var. hindsiana I. J. Condit 1908-7-20 Orange Los Alamitos Comment
  POM2033  Salix gooddingii M. Harbour 1915-4-1 s.n. Orange Olive. Comment
  RSA137  Salix gooddingii J. T. Howell 1927-7-24 394 Orange Santa Ana River bottom near Rancho Santa Ana. 152 Comment
  RSA542354  Salix gooddingii Fred M. Roberts Jr., Gordon Marsh 1987-8-31 3603 Orange Santa Ana River: adjacent to Santa Ana, 0.5 km NE 17th St. bridge. 27 Comment
  UC492356  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange near Santa Ana R. Rancho Santa Ana (at s.e. corner of pear orchard); Santa Ana Canyon 120 Comment
  UCR193010  Salix gooddingii A. C. Sanders 2008-5-28 35446 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCR239842  Salix gooddingii O. F. Clarke 2004-3-22 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  UCR261703  Salix gooddingii Dick Newell, Don Millar 2015-3-31 398 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, on Limestone Canyon Rd., 0.3 mi. SW of junction of Santiago Cyn. Rd. and Silverado Cyn. Rd. 311 Comment
  RSA0030802  Salix gooddingii C. B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  PASA2677  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Rd., near town of Los Alamitos. 7.5 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
  LA208699  Salix laevigata Carl Hedin; Joseph Ewan 1932-7-9 7685 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  RSA6453  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon, at southeast corner of pear orchard. 120 Comment
  RSA651769  Salix laevigata Matt Bogdanoff 1981-4-11 2 Orange Calif. Hwy 142, 2.5 miles (?) west of Sleepy Hollow. [Carbon Canyon Road, N of Yorba Linda] 183 Comment
  RSA735352  Salix laevigata R. H. McArthur 1934-2-10 s.n. Orange Santiago Canyon above Modjeska Comment
  RSA0036016  Salix laevigata Robert F. Thorne 1977-11-21 50805 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA0071937  Salix laevigata CNPS Accuracy Assessment Team 2014-4-28 898 .2 Orange Black Star Canyon. Comment
  RSA650637  Salix laevigata var. laevigata Daniel Truong 1991-5-13 25 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  RSA793258  Salix lasiandra Robert F. Thorne 1984-1 s.n. Orange Newport Back Bay. Comment
  CAS-BOT-BC106967  Salix lasiolepis Scott D. White 1997-3-26 4817 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
  POM122788  Salix lasiolepis Marcus E. Jones 1926-2-20 s.n. Orange East of Laguna. Comment
  POM178868  Salix lasiolepis Marcus E. Jones 1930-2-2 s.n. Orange Near Laguna. Comment
  RSA12632  Salix lasiolepis Carl B. Wolf 1934-8-16 6066 Orange Bryant Ranch east of Long Beach. Near N.W. corner section 33. 6 Comment
  RSA357006  Salix lasiolepis Robert F. Thorne 1975-4-6 45569 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  RSA362783  Salix lasiolepis Louis C. Wheeler 1934-1-14 2366 Orange Aliso Creek near Laguna. 76 Comment
  RSA0071935  Salix lasiolepis CNPS Accuracy Assessment Team 2014-4-28 898 .1 Orange Black Star Canyon. Comment
  CAS-BOT-BC128464  Salix lasiolepis var. lasiolepis Ira L. Wiggins 1966-3-22 20549 Orange Along stream bank, bottom of Silverado Canyon, about 5 mi above Ranger Station, Cleveland National Forest Comment
  RSA731917  Salix lasiolepis var. lasiolepis Fred M. Roberts, Sandra Leatherman 2007-11-27 6662 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
  RSA488136  Salix lucida subsp. lasiandra Fred M. Roberts Jr. 1985-8-23 2176 Orange Mission Viejo: Oso Pkwy., ca. 1.8km E San Diego Fwy. 133 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
  UCR207195  Salsola O. F. Clarke 2003-12-10 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  CDA1083  Salsola australis D. G. Kelch 2006-12-9 6 .536 Orange Along Newport Back Bay Dr. in side canyon. Comment
  UCR175051  Salsola australis Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  RSA4795  Salsola kali James Snow s.n. Orange Bryant Ranch, near Long Beach. Station #1. Plant #5. Comment
  CAS-BOT-BC176977  Salsola tragus John Thomas Howell 1927-6-6 2443 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  RSA269  Salsola tragus J. T. Howell 1927-6-6 44 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA734986  Salsola tragus A. C. Sanders, Fred M. Roberts, Amber O Neal 2008-5-9 35282 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA0006683  Salvia apiana J. T. Howell 1927-6-1 5 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA697878  Salvia columbariae Dorothy Sammis s.n. Orange Orange County park. Comment
  SD42978  Salvia columbariae EB H mar 1948 Orange Ner San Juan Camp Comment
  UCLA70172  Salvia columbariae W. E. Pequegnat 1937-9-7 101 Orange Santiago Peak; Santa Ana Mts. Comment
  HSC14346  Salvia columbariae J. J. Wagoner 1965-4-11 24 Orange Tucker Bird Sanctuary in Modjeska Canyon 183 Comment
  RSA700086  Salvia columbariae Unspecified 1935-02 s.n. Orange Ortega highway near San Juan Springs. Comment
  RSA653189  Salvia leucophylla David Barrios 1991-5-8 22 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 366 Comment
  SD43536  Salvia leucophylla Carl B. Wolf 1943-6-8 11449 Orange Rancho Santa Ana Botanic Garden; on dry brushy hillside. 198 Comment
  CAS-BOT-BC229976  Salvia mellifera John Thomas Howell 1927-6-8 2459 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 213 Comment
  HSC25248  Salvia mellifera Richard Spjut 1972-2-21 2217 Orange Santa Ana Mtns., Cleveland National Forest, along Hwy. 74 305 Comment
  SD232708  Salvia mellifera Mallory, McCoy 1995-6-30 Orange S-facing slope in chaparral on Windy Ridge, approx. 2.5 mi. S of 91 frwy, within footprint of the Eastern Transportation Corridor. Comment
  UCR140804  Salvia mellifera Robin G. Marushia 2004-4-16 003 Orange Southern Coast, El Moro Canyon, Crystal Cove State Park, Laguna Beach; grassy ridge southwest of No Name Ridge road in park, downhill from pullout and below closed road to park entrance 244 Comment
  UCR191465  Salvia mellifera A. C. Sanders, Fred M. Roberts 2008-4-8 34779 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  UCR223424  Salvia mellifera Dick Newell, Don Millar 2011-3-1 070 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 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
  POM4055  Salvia spathacea I. M. Johnston 1918-5-4 951 Orange Hills back of Laguna Beach. 30 Comment
  POM4123  Salvia spathacea Lois Clency 1914-07 s.n. Orange Laguna. Comment
  CSUSB687  Sambucus cerulea Nancy Robb 1966-4-15 Orange 4 miles southeast of Yorba Linda, 500 yards off Santa Ana Canyon Road. 121 Comment
  IRVC332  Sambucus mexicana E. McRae 1965-3-30 Orange Corna del Mar High School. Newport Beach Comment
  UCR106271  Sambucus mexicana B. G. Pitzer, M. Georgiady 1997-4-5 3094 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
  UCR209664  Sambucus nigra Fred M. Roberts 2008-5-8 6944 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Strands Road Gate, 0.8 km west-northwest of the Marine Institute, Dana Point Harbor 65 Comment
  CAS-BOT-BC238824  Sambucus nigra subsp. caerulea Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal: UC San Joaquin Freshwater Marsh Reserve 6 Comment
  IRVC20782  Sanicula arguta Fred M. Roberts, S. L. Fritzke 1982-4-2 462 Orange hills, 3.5km ESE Aliso Peak; 3.2km ESE Alicia Fire Station, N of Del Avion, Laguna Niguel 100 Comment
  IRVC25573  Sanicula arguta Fred M. Roberts 1988-3-17 4211 Orange Aliso Canyon, 3.3km SSE Moulton Peak, Aliso-Wood Canyon Regional Park 61 Comment
  RSA0127339  Sanicula arguta Fred M. Roberts 2016-3-17 8021 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  RSA0127423  Sanicula arguta Fred M. Roberts 2016-3-17 8018 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  RSA794245  Sanicula crassicaulis Doris Hoover Bowers 1971-4-19 1688 Orange Black Star Canyon Indian Site 762 Comment
  IRVC9348  Sarcostemma cynanchoides subsp. hartwegii R. Yarnell 159 Orange Santa Ana Canyon, Old RSA Botanical Garden. Chino Hills Comment
  HSC3171  Schinus molle D. W. Snell 1964-3-27 33 Orange Sterns lease 1.5 mi. E of Brea. 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
  UCR80006  Schinus terebinthifolius Scott D. White 1992-10-1 952 Orange City of Brea, immediately north of Carbon Canyon Road & east of Placentia Ave. c. 1 mi (airline) S-SE of Tonner Canyon. 183 Comment
  UCR191335  Schismus barbatus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34647 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  RSA797438  Schoenoplectus americanus Keith E. Hoffmaster 1927-6-13 s.n. Orange Santa Ana. Comment
  UCR193036  Schoenoplectus americanus A. C. Sanders, Fred M. Roberts 2008-6-17 35493 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  UCSB52891  Schoenoplectus americanus Roberts, Fred 1984-10-18 Orange Santa Ana Mtns.: San Juan Canyon, 2.5 km. ENE San Juan Guard Station; 4.0 km. WNW Sitton Peak 310 Comment
  UCD50097  Schoenoplectus americanus H. E. Wahlberg 1924-5-1 2 Orange Three Square Bulrush. Bolsa Chica Gun Club, Harlington Beach. Comment
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Jan 31 2012
  POM18286  Schoenoplectus californicus I. M. Johnston 1924-7-10 s.n. Orange Laguna Canyon. Comment
  RSA0027438  Schoenoplectus californicus Fred M. Roberts 2012-7-18 7672 Orange San Joaquin Hills: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus, of Poppy Street and 2.1 km WNW summit of Pelican Hill. 37 Comment
  RSA0071942  Schoenoplectus californicus CNPS Accuracy Assessment Team 2014-5-9 9346 Orange Loma Ridge West. Comment
  RSA5934  Schoenoplectus californicus Carl B. Wolf 1932-7-7 3862 Orange Opposite the Bryant Ranch: on N side of Bryant Avenue, 0.5 mile east of Los Alamitos Boulevard near Los Alamitos. 8 Comment
  POM50487  Schoenoplectus maritimus Helen D. Geis 501 Orange Peat Lands Comment
  UC537256  Scirpus maritimus Lawrence M. Booth 1932-5-30 1133 Orange Newport Lagoon Comment
  UCD124853  Scrophularia californica R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon. Comment
  UCR191024  Scrophularia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35014 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  POM4224  Scrophularia californica subsp. floribunda Robinson, Crocker 1916-3-28 s.n. Orange Santa Ana Mts. Comment
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Sep 3 2011
  RSA678518  Selaginella asprella Fred M. Roberts, Kirsten Winter, Leanne Naue 1997-6-5 5041 Orange Santa Ana Mtns.: Modjeska Peak, above Main Divide Truck Trail, 0.5km (aerial) W summit. 1483 Comment
  POM210021  Selaginella bigelovii John Thomas Howell 1927-7-22 2834 Orange Claymine Canyon, Santa Ana Mts. 182 Comment
  RSA124718  Selaginella bigelovii E. K. Balls, Percy C. Everett 1957-11-25 22841 Orange Upper Trabuco Canyon, 2.2 mi. ne. from entrance to Holy Jim Canyon. 990 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
  CAS-BOT-BC363478  Senecio californicus Helen D. Geis 1902-1-1 s.n. Orange Unspecified Comment
  POM272076  Senecio californicus Lyman Benson 1932-3-26 3199 Orange Dana Point. 60 Comment
  RSA17008  Senecio californicus P. C. Everett 1936-3-19 7733 Orange Santa Ana Botanic Garden. 183 Comment
  CAS-BOT-BC333070  Senecio flaccidus var. douglasii John Thomas Howell 1927-7-16 2779 Orange North side of Santa Ana Canyon 152 Comment
  UCR200664  Senecio linearifolius Daniel Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel, Dana Point Highlands, Crown Valley Parkway at Pacific Island Drive 70 Comment
  SD231234  Senecio linearifolius var. linearifolius Scott D. White 2004-7-7 10606 Orange South Coast: Laguna Niguel. Along both sides Pacific Island Dr., at and near small unmarked square structure on southwest side of street. Comment
  IRVC24749  Senecio vulgaris Fred M. Roberts 1986-4-29 2817 Orange Turtle Rock, above corner of Ridgerout Dr. and Turtle Rock Dr., 1.1km SE French Hill, Irvine 141 Comment
  IRVC905  Senecio vulgaris I. L. Wiggins 1966-3-31 20569 Orange Fullerton; associated road 200m S of Imperial Highway on shoulder. Southern Coastal Comment
  RSA728663  Setaria adhaerens R. E. Riefner 2006-10-8 6 -480 Orange City of Irvine, San Diego Creek, between Alton Pwky. and 405 Fwy 51 Comment
  IRVC21695  Setaria lutescens Fred M. Roberts 1984-8-6 1366 Orange UC Irvine, along Adobe Circle Road, 0.9km ENE campus center; 2.3km W French Hill, Irvine 30 Comment
  CDA2442  Setaria megaphylla R. E. Riefner Jr. 2006-11-19 06 -683 Orange City of San Juan Capistrano, San Juan Creek at La Novia Avenue. Comment
  CAS-BOT-BC243591  Setaria parviflora Ira L. Wiggins 1965-10-24 20294 Orange Orange grove on S side of Yorba Linda Blvd. 1/4 mi. E of State College Blvd., Fullerton Comment
  CAS-BOT-BC243592  Setaria parviflora Carl B. Wolf 1932-6-13 3725 Orange Malvern and Nicholas Aves., Fullerton 53 Comment
  CAS-BOT-BC243593  Setaria parviflora Miss. H. D. Geis 1902-5-1 s.n. Orange Santa Ana Comment
  RSA734613  Setaria parviflora Keith E. Hoffmaster 1933-10-29 496 Orange Near Tustin Comment
  UC729940  Setaria parviflora Carl B. Wolf 1932-6-13 3725 Orange Malvern & Nicholas Aves. Fullerton 53 Comment
  RSA732152  Sidalcea malviflora A. C. Sanders, Fred M. Roberts 2008-4-22 35018 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado. 1200 Comment
  RSA432756  Sidalcea malviflora Christopher Davidson 1977-5-18 5635 Orange Cleveland National Forest, Falcon campground. 1006 Comment
  RSA433910  Sidalcea malviflora subsp. sparsifolia M. B. Dunkle 1935-3-3 4343 Orange San Juan Canyon. 457 Comment
  CAS-BOT-BC205738  Sidalcea neomexicana subsp. thurberi P. C. Everett 1935-4-27 6691 Orange Bryant Ranch. NW. Cor. Bryant Ave. & Hansen Rd. 30 Comment
  SEINET6947338  Sidalcea sparsifolia W. P. Vestal, A. G. Vestal 1955-3-24 3453 Orange Trabuco Canyon, 5 miles east of El Toro. Comment
  CAS-BOT-BC434367  Sidotheca trilobata P. C. Everett 1935-6-19 7224 Orange Santa Ana Mts., main divide motorway 1 5/10 mi. below summit of Santiago Peak, E. slope 1310 Comment
  RSA749489  Silene antirrhina Fred M. Roberts, Linda Farley 2008-3-28 6823 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber s Peak, Irvine Land Conservancy. 457 Comment
  IRVC20780  Silene gallica Fred M. Roberts, S. L. Fritzke 1982-4-2 458 Orange hills, 3.5km ESE Aliso Peak; 3.2km ESE Alicia Fire Station, N of Del Avion, Laguna Niguel 100 Comment
  RSA732119  Silene gallica A. C. Sanders, Fred M. Roberts 2008-4-8 34730 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 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
  UC537161  Silene gallica Lawrence M. Booth 1932-5-12 1016 Orange Newport Bay Comment
  UCR102033  Silene gallica B. G. Pitzer 1997-3-25 3012 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR281559  Silene gallica Mitch Provance, Jeremiah George 2017-3-20 317- 112 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
  RSA0013912  Silene laciniata Fred M. Roberts 2012-5-10 7584 Orange San Joaquin Hills: Buck Gully, south fork, north slope of Pelican Hill, along Pelican Hills Dr., 0.3 km N summit Pelican Hill. 189 Comment
  RSA438884  Silene laciniata subsp. major F. R. Fosberg 1931-6-2 748 Orange Silverado Canyon, Santa Ana Mountains. Comment
  RSA699745  Silene laciniata subsp. major Fred M. Roberts, David E. Bramlet 2003-5-15 5874 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 1.41km SSW Gato Gate and 0.35km NNW of SDG&E substation. 122 Comment
  SD127342  Silene laciniata subsp. major Reid Moran, Gordon Marsh and Jack Reveal 1977-6-13 24233 Orange Willow Canyon, tributary of Laguna Canyon 124 Comment
  IRVC25338  Silene laciniata subsp. major Bernard N. Jaroslow 1989-5-29 B23 Orange Santiago Canyon, Morrow Trail out of Live Oak Canyon below truck trail; in patches along trail. Santa Ana Mountains Comment
  IRVC15152  Silene multinervia A. S. Boughey 1968-4-23 208 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  RSA734809  Silybum marianum A. C. Sanders, Fred M. Roberts 2008-5-6 35269 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  UCR140789  Silybum marianum Robin G. Marushia 2004-5-4 011 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  RSA650820  Sisymbrium altissimum Daniel Truong 1991-5-5 14 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of closed area. Comment
  CLARK-A1528-967  Sisymbrium irio Patricia A. Andrews 1975-6-26 5911 Orange Capistrano Bay Beach 9 Comment
  IRVC1174  Sisymbrium irio L. Burns 1965-3-15 Orange Corona del Mar, Bayside Dr. Newport Beach Comment
  RSA336  Sisymbrium irio J. T. Howell 1928-2-7 819 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  RSA792476  Sisymbrium irio Justin M. Wood 2011-2-28 3267 Orange South Coast: Santa Ana River, marsh just upstream of Pacific Coast Highway. Plants collected throughout the marsh and along the adjacent bike path. 0 Comment
  IRVC1190  Sisymbrium orientale D. Frees 1965-3-27 Orange Newport Beach; East Bluffs. Southern Coastal Comment
  IRVC17042  Sisymbrium orientale R. Nesheim 1965-4-30 Orange Bayside Dr. Newport Beach Comment
  JEPS64284  Sisyrinchium bellum Alice King 1908-4-19 Orange Santa Ana Mountains Comment
  RSA366973  Sisyrinchium bellum H. L. Bauer 1929-4-20 s.n. Orange Trabuco Canon. Comment
  RSA602117  Sisyrinchium bellum Scott D. White 1997-5-6 5039 Orange Santa Ana Mountians, Santiago Canyon Area: Unnamed tributary to Santiago Creek flowing from the SW, directly W of Pancho Canyon. USGS El Toro quad, Lomas de Santiago S179. 366 Comment
  RSA734803  Sisyrinchium bellum A. C. Sanders, Fred M. Roberts 2008-5-6 35250 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
  RSA747707  Sisyrinchium bellum Fred M. Roberts 2008-5-16 6985 Orange Dana Point: Dana Point Hradland, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  RSA789225  Sisyrinchium bellum Naomi Fraga 2009-5-11 2716 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  UCR151027  Sisyrinchium bellum Scott D. White 1997-5-6 5039 Orange Peninsular Ranges; Santa Ana Mtns., Lomas de Santiago; Santiago Canyon area; unnamed tributary to Santiago Creek flowing from the SW, directly west of Pancho Canyon 396 Comment
  POM4249  Solanum americanum Philip A. Munz 1918-5-4 2176 Orange Laguna Canyon. Comment
  RSA743381  Solanum americanum Fred M. Roberts 2008-5-27 7000 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  UCSB48043  Solanum americanum Roberts, Fred 1981-9-26 Orange Newport Beach: Pacific Coast Highway, 0.3km W Newport Blvd.; 0.4km SE Bench Mark 10 3 Comment
  POM8757  Solanum douglasii Philip A. Munz, R. D. Harwood 1920-4-24 3757 Orange Santa Ana Mtns. Sierra [Freemont] Canyon. 366 Comment
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Sep 17 2011
  RSA553909  Solanum douglasii Scott D. White 1992-9-29 845 Orange Vicinity of City of Brea, immediately N of Carbon Canyon Road and E of Placentia Avenue, +/- 1 mi (airline) S/SE of Tonner Canyon. 183 Comment
  UC1125193  Solanum douglasii A. Lewis Mar 1934 337 Orange Santa Ana Canyon 121 Comment
  UC1125197  Solanum douglasii H. E. Norton 1931-3-6 35 Orange Baker Canyon 609 Comment
  UCR191213  Solanum douglasii A. C. Sanders 2008-4-29 35147 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
  UCR97817  Solanum douglasii Scott D. White 1997-3-28 4828 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  UCR98231  Solanum douglasii B. G. Pitzer 1997-4-15 3131 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  RSA0020074  Solanum douglasii Stephen Bruff s.n. Orange Lemon Heights. Comment
  RSA0045320  Solanum douglasii G. Jentges 1932-4-30 68 Orange Wash near railroad track. Comment
  RSA733736  Solanum douglasii Goldie Peale 1932-5-1 s.n. Orange Outskirts of Orange. Near Lemon Heights Blvd. Comment
  RSA17565  Solanum umbelliferum Carl B. Wolf 1936-6-17 7953 Orange Long Ortega Highway San Juan Canyon, 5/10 mi. e. of Orange Co. Line Riverside 366 Comment
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Aug 9 2014
  RSA638973  Solanum umbelliferum Valerie L. Soza, LeRoy Gross 1999-6-7 494 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA427441  Solanum umbelliferum Christopher Davidson 1977-5-18 5616 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  SD247738  Solanum xanti R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49696 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  RSA788807  Solidago californica R. F. Thorne 1977-11-21 49980 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  POM201732  Solidago confinis L. M. Booth 1932-12-26 1383 Orange Newport Lagoon. 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
  POM202167  Sonchus oleraceus L. M. Booth 1932-6-15 1193 Orange Marsh border East of Huntington Beach. Comment
  POM202169  Sonchus oleraceus L. M. Booth 1932-7-23 1305 Orange Corona del Mar, Newport Beach Comment
  RSA184147  Sonchus oleraceus I. L. Wiggins 1966-5-25 20668 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton. Comment
  HSC10988  Sorghum halepense D. W. Snell 1964-3-24 7 Orange 1 mi. E of Brea on Birch St. Comment
  IRVC24181  Sorghum halepense Fred M. Roberts 1985-9-17 2258 Orange Irvine; lot between Walnut Avenue, Harvard Avenue and Peter's Creek Channel. southern coastal 20 Comment
  RSA699060  Sparganium eurycarpum J. Russell Bruff 1932-4-14 s.n. Orange Drainage Ditch, Greenville. So of Santa Ana. Comment
  RSA483172  Spartina foliosa F. R. Fosberg 1930-7-10 S 3193 Orange Anaheim Landing. [Los Angeles Co. on label] Comment
  IRVC365  Spergula arvensis D. Van Gorden 1965-3-11 Orange 2212 Meyer Place. Costa Mesa Comment
  RSA696548  Spergula arvensis Minor Warne 1934-03 s.n. Orange Laguna Canyon Forks Comment
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Jun 24 2009
  POM202104  Spergularia macrotheca L. M. Booth 1932-5-19 1062 Orange Newport Bay. Comment
  UC537160  Spergularia macrotheca Lawrence M. Booth 1932-5-19 1062 Orange Newport Bay Comment
  RSA0097841  Spergularia macrotheca var. macrotheca Fred M. Roberts, Julie Vanderwier 1997-4-29 5019 Orange Bolsa Chica Salt Marsh (US Fish & Wildlife Service cell 17); west of old oil field, 1.7 km SSE of Chica Survey Mark. 0 Comment
  CLARK-A1045-1002  Spergularia marina George K. Helmkamp 1978-3-3 Orange Newport Beach beside Newport Backbay; Newport Beach 7.5'Q Comment
  RSA0098514  Spergularia marina Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1122 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UCR237817  Spergularia marina Mark A. Elvin 2003-2-2 2289 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCSB52392  Spergularia salina Roberts, Fred; Ferren, Wayne 1982-7-21 Orange Newport Beach; Upper Newport Back Bay, Back Bay Dr., 3.5 km. N San Joaquin Hills Rd.; 3.0 km. W UC Irvine campus 2 Comment
  PASA1277  Spergularia tenuis Joseph Andorfer Ewan 1931-7-31 Orange Smeltzer Comment
  IRVC26743  Spiloxene ovata Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3161 Orange UCI Arboretum Southern Coastal 15 Comment
  CAS-BOT-BC236655  Sporobolus airoides L. R. Abrams 1901-6-1 1755 Orange Wilmington Comment
  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
  SEINET3109888  Sporobolus airoides Carl B. Wolf 1936-4-22 Orange Hansen Rd., near Cerritos Ave., E of Los Alamitos. 15 Comment
  CAS-BOT-BC248292  Stachys ajugoides A. C. Sanders; Fred M. Roberts 2008-6-17 35488 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  POM202025  Stachys ajugoides L. M. Booth 1932-6-4 1146 Orange Newport Lagoon. Comment
  RSA732164  Stachys ajugoides A. C. Sanders, Fred M. Roberts 2008-4-8 34752 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  RSA754065  Stachys ajugoides A. C. Sanders, Fred M. Roberts 2008-7-16 35834 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin. 391 Comment
  SEINET9366755  Stachys ajugoides Unknown 2008-6-17 35488 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, West Loma Ridge Spur Road c. 1 km E of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 (Black Star Canyon 7.5' topo.) East-facing burned slope, former brush patch dominated by Rhus laurina, surrounded by grassland. Comment
  UCR193833  Stachys ajugoides A. C. Sanders, Fred M. Roberts 2008-7-16 35834 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  RSA0012748  Stachys rigida subsp. quercetorum Fred M. Roberts 2012-5-10 7573 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  SEINET9332031  Stachys rigida var. quercetorum Unknown 2004-5-4 007 Orange Crystal Cove State Park Comment
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Oct 26 2017
  UCR247898  Stachys rigida var. rigida Fred M. Roberts 2013-6-12 7796 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 km ENE Silverado School and 1.4 km up stream Black Star Road crossing. 320 Comment
  UCR231347  Stachys stebbinsii A. C. Sanders, Kent Beaman 2011-9-27 39902 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347 deg. ) of Santiago Peak 903 Comment
  RSA452250  Stanleya pinnata Claire Kibbe 1936-07 19961 Orange Santa Ana Canyon. Comment
  UC1971224  Stebbinsoseris heterocarpa Scott D. White, Noel Davis 1998-4-24 6347 Orange MISSION VIEJO AREA: Aliso Creek watershed, east of El Toro Rd. just N of junction. w/ Valley Vista Wy. Large proposed subdivision called Saddleback Meadow. USGS 7.5' Santiago Peak quad. Comment
  UC484253  Stellaria media C. B. Wolf 1931-3-6 Orange Trabuco Canyon Santa Ana Mts. (Trabuco Camp Grounds, w slope of Santa Ana Mts) 609 Comment
  UCD86397  Stenotaphrum secundatum Fred M. Reed 1933-9-27 8101 Orange El Toro - Arch Beach. Comment
  RSA488125  Stephanomeria cichoriacea Fred M. Roberts 1985-7-26 2096 Orange Santa Ana Mts.: Main Divide Truck Trail, above Falcon Group Camp, 2.2 km ESE Los Pinos Peak 1057 Comment
  UCR17943  Stephanomeria cichoriacea L. Stuart 1974-1 s.n. Orange Peninsular Range; Santa Ana Mtns., Sitton Peak Road, c. 3 mi off Ortega Hwy 579 Comment
  UCR247541  Stephanomeria cichoriacea Dick Newell, Judy Booth 2013-8-25 338 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd., 2.1 air miles due east of lower Maple Springs gate 832 Comment
  RSA232212  Stephanomeria diegensis James Henrickson 1970-8-22 s.n. Orange 2.5 miles NNW of Huntington Beach. 0 Comment
  UCD136245  Stephanomeria diegensis L. D. Gottlieb 1968-8-14 6860 Orange on Route 74, immediately west of Lower San Juan Campground. 411 Comment
  OBI41037  Stephanomeria exigua subsp. deanei Melissa Thorme 1983-11-23 17 Orange In coastal field located adj to S most housing tract in Corona Del Mar Comment
  UCR193273  Stipa cernua A. C. Sanders, Fred M. Roberts 2008-6-17 35507 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  UCR106284  Stipa lepida B. G. Pitzer, M. Georgiady 1997-4-5 3071 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
  UCR223959  Stipa pulchra Fred M. Roberts 2008-4-9 6863 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
  UCR158027  Stylocline gnaphaloides Adrian Wolf 1998-5-15 293 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  RSA957  Stylocline gnaphaloides J. T. Howell 1928-4-15 917 Orange near east bundary of Rancho Santa Ana 213 Comment
  POM413  Stylomecon heterophylla P. A. Munz 1918-5-4 2171 Orange Laguna. Comment
  RSA5402  Styrax redivivus Carl B. Wolf 1932-12-19 4441 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA763837  Styrax redivivus Doris Bowers 1971-4-19 1695 Orange Santa Ana Mts. 762 Comment
  RSA263901  Suaeda esteroa C. W. Tilforth 1975-9-6 1044 Orange Upper Bay, Newport Beach: North-east shoreline Comment
  SEINET179446  Suaeda esteroa Lawrence M. Booth 1932-12-13 1373 Orange Newport Bay. Comment
  UC1971448  Suaeda esteroa Louis C. Wheeler 1946-9-28 6385 Orange Newport Bay. 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
  IRVC25415  Suaeda taxifolia Fred M. Roberts, Wayne Ferren 1987-4-8 3356 Orange Upper Newport Back Bay, west side, North Star Beach, 0.8km N Coney Island, Newport Beach 0 Comment
  POM202053  Suaeda taxifolia L. M. Booth 1932-6-29 1232 Orange Newport Bay. Comment
  POM259503  Suaeda taxifolia A. C. Keller 1938-7-29 s.n. Orange On channel beach, 1/4 mile west of Corona del Mar 1 Comment
  POM695  Suaeda taxifolia P. A. Munz 1918-5-5 2179 Orange Laguna Comment
  UC1007088  Suaeda taxifolia Allan C. Keller 1937-11-26 Orange Santa Ana River Bridge w Newport Beach (on U.S. Highway 101 Alternate); , Santa Ana River Comment
  UCSB44182  Suaeda taxifolia Henneman, J. 1977-5-21 Orange Newport Back Bay Comment
  RSA702807  Symphoricarpos mollis Scott D. White 2004-7-7 10603 Orange South Coast: Laguna Niguel. 61 Comment
  UCR26986  Symphoricarpos mollis E. W. Lathrop 1966-4-18 6177 Orange Santa Ana Mtns., Black Star Canyon Comment
  RSA581436  Symphoricarpos mollis Fred M. Roberts, Gordon Marsh 1989-5-21 4354 Orange Santa Ana Mountains: small tributary canyon to Santiago Canyon, Flemming Regional Park, just E of Modjeska, ca. 3.3 km WSW Laurel Springs. 451 Comment
  RSA663168  Symphoricarpos mollis R. E. Riefner 2000-8-8 20 -722 Orange NCCP North Ranch Policy Plan Area. NE property; E slope of upper Fremont Cyn.; S of Donaldson Ranch area and S of powerline / National Forest boundary. 454 Comment
  CAS-BOT-BC97982  Symphyotrichum hesperium Frank W. Peirson 1924-10-19 5241 Orange Wintersberg Comment
  CAS-BOT-BC98280  Symphyotrichum subulatum var. parviflorum John Thomas Howell 1927-9-24 3116 Orange Santa Ana River bottom, Santa Ana Canyon [Canon] 152 Comment