Search Results — 2000 specimen records retrieved (1620 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
  RSA678453  Abronia maritima Valerie L. Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1116 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA764470  Abronia maritima Doris Bowers 1957-5-16 207 Orange Corona Del Mar 3 Comment
  SBBG69894  Abronia umbellata M. N. Ackley 1928-9-22 716 Orange Sunset Beach 8 Comment
  SDSU8415  Abronia umbellata subsp. umbellata R. M. Beauchamp 1967-3-19 319 Orange Growing in sandy area south of the west end of the airstrip at Sherman Field. Comment
Read comments May 21 2013
  RSA0029936  Acacia retinodes Fred M. Roberts 2013-5-15 7774 Orange San Joaquin Hills: Buck Gully, north slope, along south side of San Joaquin Hills Drive, 1.6 km NNW summit Pelican Hill. 174 Comment
  CDA25889  Acacia saligna Mark A. Elvin, D. G. Kelch, B. S. Nerhus, Patricia Iluore 2006-12-9 5325 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 100 miles west of Eastbluff Drive. Comment
  CAS-BOT-BC333257  Acer macrophyllum B. D. Stark 1931-6-10 2246 Orange Claymine Can, N end of Santa Ana Mts. 243 Comment
  RSA76986  Acer macrophyllum F. W. Peirson 1925-4-11 5736 Orange Silverado Canyon, Santa Ana Mountains. 610 Comment
  UC1071624  Acer macrophyllum H. E. Norton 1931-3-20 43 Orange top of Santa Ana Mts. , Corona Quad. 1036 Comment
  RSA689446  Achillea millefolium Scott D. White, Amanda Duchardt 2003-4-10 9008 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  RSA696762  Achillea millefolium C. H. Mueller 1932-5-30 s.n. Orange Corner Cleveland and Chapman Comment
  RSA588728  Achillea millefolium var. californica Fred M. Roberts 1990-5-7 4602 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  CAS-BOT-BC211912  Achnatherum coronatum John Thomas Howell; Alice Eastwood 1937-4-24 3926 Orange 2 miles east of San Juan Hot Springs Comment
  RSA71  Achnatherum coronatum J. T. Howell 1927-6-2 14 Orange Sandstone Ridge, Botany Garden, RSA. 152 Comment
  RSA734282  Achnatherum coronatum A. C. Sanders, Linda Farley, Fred M. Roberts, David E. Bramlet 2008-4-1 34645 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  RSA734601  Achnatherum coronatum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35310 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR258349  Acmispon americanus var. americanus Fred M. Roberts 2014-4-21 7853 Orange South Coast, SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin 113 Comment
  LA48030  Acmispon glaber var. glaber A. M. Johnson; 1927-12-30 2760 Orange Laguna Comment
  SEINET5327559  Acmispon glaber var. glaber I. W. Clokey 1932-3-1 5329 Orange Laguna Beach; slopes facing ocean Comment
  UCD170824  Acmispon micranthus A. C. Sanders; Fred M. Roberts 2008-3-25 34520 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  CAS-BOT-BC29186  Acourtia microcephala J. T. Howell 1927-6-22 2571 Orange Hills on north side of Santa Ana Canyon 152 Comment
  UCSB48009  Acourtia microcephala Roberts, Fred 1980-7-11 Orange Santa Ana Mtns.; San Juan Canyon, Hwy. 74, 2.4 km. ENE San Juan Guard Station; 0.3 km. W of Bench Mark 1100 345 Comment
  RSA649082  Adenostoma fasciculatum Karl Price 1988-4-29 13 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
  UCSB48001  Adenostoma fasciculatum var. fasciculatum Roberts, Fred 1980-6-29 Orange Santa Ana Mtns., Viejo Canyon, 0.4km N Calif. Rte 74; 2.2km ENE San Juan Guard Station 341 Comment
  RSA739277  Adiantum capillus-veneris R. E. Riefner 2008-7-9 08 -218 Orange Orange County: City of Laguna Beach, bluff area W of W St. and Pacific Coast Hwy. 6 Comment
  RSA749677  Adiantum capillus-veneris A. C. Sanders, Fred M. Roberts 2008-7-16 35836 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  UCR193804  Adiantum capillus-veneris A. C. Sanders, Fred M. Roberts 2008-7-16 35836 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  RSA749641  Adiantum jordanii D. E. Bramlet 2008-4-1 4139 Orange Ridegeline in Upper Hicks Canyon, 136m S of the Haul Rd. 345 Comment
  UCR215286  Adiantum jordanii Fred M. Roberts 2008-5-14 6960 Orange Lomas de Santiago, Loma Ridge, upper Bee Flat Canyon below Loma Ridge Road, 1.3 km north of Bee Peak and 5.4 km NW of Bolero Lookout. Irvine Ranch Conservancy 337 Comment
  IRVC3119  Adiantum raddianum Don Pfirrmann 1965-4-28 HS 0579 Orange Newport Beach; 252 Mayflower Drive. Southern Coastal Comment
  UCR239501  Agave americana A. C. Sanders, Fred M. Roberts 2008-4-8 34737 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  CAS-BOT-BC127479  Agrostis capillaris Ira L. Wiggins 1965-10-24 20291 Orange Roadside at corner of Yorba LInda and State College Boulevards, Fullerton. Comment
  UCR242117  Agrostis pallens D. E. Bramlet 1983-5-28 1378 Orange South Coastal Plains, Dana Point, SW of Pacifc Coast Highway 73 Comment
  UCR149361  Albizia lophantha Scott D. White, Brian Leatherman 2003-10-30 9849 Orange Peninsular Ranges; Santa Ana Mountains region, Foothills; Oso Parkway crossing over Chiquita Canyon 229 Comment
  RSA366464  Allium haematochiton M. B. Dunkle 1933-3-5 3085 Orange San Juan Canyon. Comment
  POM6476  Allium praecox Philip A. Munz, L. T. Street, Williams 1919-5-3 2635 Orange Santa Ana River Canyon. Comment
  RSA264153  Allium praecox C. W. Tilforth 1977-3-6 1257 Orange Small canyon west of Gypsum Canyon, south side of Santa Ana River, Santa Ana Canyon 152 Comment
  RSA548870  Allium praecox Fred M. Roberts 1987-4-3 3342 Orange Irvine: San Joaquin Hills, Central Shadey Canyon, 2.8 kilometers NE Signal Hill. 103 Comment
  RSA759244  Allium praecox Robt. Allen, Nancy Barnhill 2008-3-30 s.n. Orange San Joaquin Hills, Laguna Coast Wilderness Park, along Mary's Trail, a short distance uphill from the Nix Nature Center 134 Comment
  RSA638970  Allophyllum glutinosum Valerie L. Soza, LeRoy Gross 1999-6-8 497 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA67223  Allophyllum glutinosum Verne Grant, Alva Grant 1949-4-23 8659 Orange West entrance of Cleveland National Forest on Hywy 74. Comment
  RSA562817  Aloe chabaudii Steve Boyd, Timothy S. Ross 1992-5-20 7470 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, about old mining habitations in side canyon. 390 Comment
  POM201873  Amaranthus blitoides L. M. Booth 1932-7-25 s.n. Orange Santa Ana River, 1 1/2 miles from ocean. 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
  UC537281  Amaranthus blitoides L. M. Booth 1932-12-16 1377 Orange Santa Ana River, near coast Santa Ana River Comment
  UCR44905  Amaranthus blitoides B. G. Pitzer, L. F. LaPre 1986-10-20 0314 Orange City of Irvine, Drainage channel near intersection of Irvine Blvd. and Sand Canyon Avenue. 91 Comment
  UCR132517  Amaranthus deflexus A. C. Sanders 1999-10-31 23225 Orange South Coast, Mission San Juan Capistrano, near intersection of Ortega Highway (Hwy 74) and El Camino Real 61 Comment
  RSA21100  Amaranthus deflexus E. R. Johnson 1937-11-5 9377 Orange Placentia. Bradford Bros. Packing House. 76 Comment
  UCR280801  Amaranthus hybridus David Yu 2017-5-21 027 Orange South Coast, Irvine, Turtle Rock Trail, behind Chaparral Park, along a stairway leading to a rocky hillside, 1 mile west of 6507 Turtle Rock Drive Comment
  RSA274  Amaranthus powellii J. T. Howell 1927-7-27 502 Orange Near ranch, Rancho Santa Ana 152 Comment
  UCR23422  Amaranthus powellii John C. Roos 1937-8-31 2558 Orange San Juan Capistrano [beach] Comment
  RSA184132  Amaranthus powellii I. L. Wiggins 1965-10-24 20293 Orange Yorba Linda Blvd. 1/4 mi. E of State College Blvd., Fullerton. Comment
  UC537267  Amaranthus retroflexus Lawrence M. Booth 1932-7-25 1307 Orange Santa Ana River, 0.5 mi from ocean Santa Ana River Comment
  RSA696431  Amaranthus retroflexus Keith E. Hoffmaster 1933-5-22 334 Orange Santa Ana Comment
  CAS-BOT-BC13493  Amblyopappus pusillus P. A. Munz 1934-3-26 13135 Orange Newport Beach 15 Comment
  UC565480  Amblyopappus pusillus H. L. Mason 1926-4-25 2915 Orange 5 mi s, on the cliffs Laguna Comment
  RSA695490  Amblyopappus pusillus J. Vlahos s.n. Orange Corona Del Mar Comment
  RSA699676  Ambrosia acanthicarpa Keith E. Hoffmaster 1934-1 s.n. Orange Near Santa Ana. Comment
  SD143592  Ambrosia chamissonis R. D. Goeden, D. W. Ricker 1970-2-19 Orange Newport Beach, northwest 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
  UCR17120  Ambrosia chamissonis Steve Kulju 1974-5-27 s.n. Orange South Coast, Sunset Bay, 1 mile SE of the city of Seal Beach on State Hwy 1 5 Comment
  RSA416942  Ambrosia chamissonis A. M. Johnson 1931-3-21 3817 Orange Newport. Comment
  RSA93931  Ambrosia chamissonis F. W. Peirson 1921-1-9 1320 Orange Balboa Beach. Comment
  RSA696744  Ambrosia psilostachya Anonymous 1934-09 s.n. Orange [Unspecified] Comment
  UCR222883  Ambrosia psilostachya T. B. Salvato 2010-10-27 5121 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
  CAS-BOT-BC45062  Ambrosia psilostachya David D. Keck 1933-10-3 2539 Orange Sunset Beach Comment
  RSA0031761  Ambrosia psilostachya R. F. Thorne 1977-11-21 50813 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA753029  Ammannia coccinea A. C. Sanders, Fred M. Roberts 2008-9-18 36095 Orange Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  UCR267219  Ammannia coccinea Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7083 Orange Santa Ana River Canyon, YORBA LINDA: Santa Ana River, 0.7 km W Gypsum Canyon bridge, south of La Palma Ave. 107 Comment
  UCR193782  Amorpha californica A. C. Sanders, Fred M. Roberts 2008-7-3 35680 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA485153  Amorpha californica var. californica E. R. Johnson 1929-10-1 636 Orange Rancho Santa Ana. Comment
  UCR191417  Amsinckia intermedia A. C. Sanders, Fred M. Roberts 2008-4-8 34755 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  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
  IRVC212  Amsinckia menziesii var. intermedia C. Thompson 1965-3-20 Orange [Lower Santiago Canyon], Irvine Lake area. Santa Ana Mountains 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
  RSA789229  Anagallis arvensis Naomi Fraga, Duncan S. Bell 2009-5-11 2712 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  RSA649080  Anagallis arvensis Karl Price 1988-5-21 58 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
  RSA708528  Andropogon glomeratus Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6111 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, c.a. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  CAS-BOT-BC400331  Anemopsis californica Carl B. Wolf 1932-7-2 3818 Orange Carbon Canyon, 1/8 mi. below La Vida Springs 213 Comment
  JEPS12263  Anemopsis californica Alice King June, 1908 Orange Santa Ana Comment
  RSA698847  Anemopsis californica Frances Battey s.n. Orange Laguna Canon. Comment
  RSA700044  Anemopsis californica Kenneth Beard s.n. Orange East of S. A. River on Edinger Road 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
  IRVC17997  Anthemis cotula A. B. McGee 1970-9-9 Orange San Diego Creek Channel adjacent to San Joaquin Freshwater Marsh. Irvine Comment
  IRVC21319  Anthemis cotula Fred M. Roberts 1982-7-31 788 Orange 0.3km NNW Clemente Survey Mark; 1.2km NNE Civiv Center, San Clemente 220 Comment
  RSA594799  Antirrhinum coulterianum Fred M. Roberts, Sandra Leatherman, Brian Leatherman 1994-4-24 4919 Orange Santa Ana Mountains: Lower Hot Springs Canyon, c.a. 1km NNW Juan Rancho Survey Mark. 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
  RSA697  Antirrhinum coulterianum J. T. Howell 1927-6-5 34 Orange Rancho Santa Ana, near east boundary. 152 Comment
  UCR190998  Antirrhinum coulterianum A. C. Sanders, Fred M. Roberts 2008-4-22 35050 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slopes of south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado 488 Comment
  JEPS83328  Antirrhinum kelloggii David M. Thompson 1983-5-11 301 Orange On private road up Williams Canyon, about 0.3 miles up from Santiago Canyon Road. El Toro Quad. (7.5', 1968) 365 Comment
  POM7664  Antirrhinum kelloggii Philip A. Munz, R. D. Harwood 1920-4-24 3785 Orange Sierra [Freemont] Canyon 366 Comment
Read comments Sep 17 2011
  RSA542506  Antirrhinum nuttallianum subsp. nuttallianum Fred M. Roberts 1987-4-28 3393 Orange IRVINE: San Joanuin Hills, lateral to Upper Sand CAnyon, 2.3 km SE French Hill. 107 Comment
  RSA588656  Antirrhinum nuttallianum subsp. nuttallianum Fred M. Roberts, Carol A. Roberts 1990-5-23 4651 Orange Santa Ana Mtns: West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5 km SE Los Pinos Peak. 756 Comment
  UC672564  Antirrhinum nuttallianum subsp. subsessile H. L. Mason 1926-4-25 2907 Orange 5 mi s Laguna Comment
  IRVC20471  Apiastrum angustifolium Fred M. Roberts 1983-5-4 1023 Orange Temple Hill, Upper Rancho Laguna Canyon, 1.7km SSW Top of the World Sch.; 1.4km ENE Cactus Point, Laguna Beach 200 Comment
  RSA0119679  Apiastrum angustifolium Fred M. Roberts 2015-3-10 7926 Orange San Joaquin Hills: Niguel Hill, on ridge above Aliso Canyon ear end of Ceanothus Drive (Hangover House property), 0.4 km WNW summit Aliso Peak. 122 Comment
  RSA518  Apiastrum angustifolium J. T. Howell 1927-6-17 150 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCSB56684  Apiastrum angustifolium Roberts, Fred 1983-2-25 Orange Laguna Beach; Goff Ridge, south flank of Temple Hill, 0.9 km. NNE Goff Island 180 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
  RSA519  Apium graveolens J. T. Howell 1927-7-15 405 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  UCR230242  Apocynum cannabinum Dick Newell, Peter Wetzel, Cassie Backer 2011-7-5 202 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 242 Comment
  UCR241665  Apocynum cannabinum Dick Newell, Judy Booth 2013-5-28 331 Orange Peninsular Range; Santa Ana Mtns., Agua Chinon Wash, 1.12 mi. due west of Bolero Point, Limestone Canyon Rd. 269 Comment
  UCR129346  Arbutus menziesii C. B. Wolf 1933-11-8 05534 Orange Santa Ana Mtns., Trabuco Canyon on the south wall opposite the Trabuco Truck Trail 915 Comment
  SEINET10449344  Arctostaphylos catalinae James S. Miller 2001-12-15 Miller 10652 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
  SEINET10874387  Arctostaphylos edmundsii James S. Miller 2001-12-15 Miller 10649 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
  HSC25234  Arctostaphylos glandulosa Richard Spjut 1972-2-22 2230 Orange Santa Ana Mtns. along Hwy. 74. Cleveland Natl. Forest 762 Comment
  UCR223437  Arctostaphylos glandulosa Dick Newell, Don Millar 2011-2-8 055 Orange Peninsular Range; Santa Ana Mtns., Black Star Coal Mine above Fremont Canyon, along Coal Rd. 475 Comment
  UCR273486  Arctostaphylos glandulosa A. C. Sanders, Glen Morrison 2016-8-4 42606 Orange Peninsular Range; Santa Ana Mountains, North Main Divide Road (Forest Rte 3S04) between Hwy 74 and Los Pinos Spring, 1.7 km NW (312 deg. ) of El Cariso Fire Station 959 Comment
  CAS-BOT-BC23106  Arctostaphylos glandulosa subsp. glandulosa Robert F. Thorne; J. Olmsted 1963-7-26 32827 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1188 Comment
  CAS-BOT-BC23111  Arctostaphylos glandulosa subsp. glandulosa P. A. Munz; E. K. Balls 1952-8-19 17924 Orange Summit of Ortega hwy, Santa Ana Mts. 822 Comment
  IRVC1252  Arctostaphylos glandulosa subsp. glandulosa A. S. Boughey 1965-3-16 69 Orange Silverado Canyon. Santa Ana Mountains 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
  RSA629317  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15524 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  RSA545  Arctostaphylos glandulosa subsp. zacaensis J. T. Howell 1927-6-26 222 Orange Claymine Canyon, near Sierra Peak. 457 Comment
  RSA748167  Arctostaphylos otayensis K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 6 Orange Cleveland National Forest, 2 mi. N of Main Divide Rd./NF3S04, off Hwy. 74. 957 Comment
Read comments Dec 19 2014
  SD53699  Arctotis stoechadifolia E. Norland 1963-5-24 Orange Cypress, Bishop St. Comment
  UC592899 Image available Argemone munita Carl B. Wolf 1933-8-24 5403 Orange summit of Santiago Peak Santa Ana Mountains 1731 Comment
  SEINET4085709  Argemone munita var. robusta G. B. Ownbey, F. Ownbey 1954-1 2177 Orange Between Modjesca Peak and Santiago Peak. 1524 Comment
  RSA588773  Aristida purpurea var. parishii Fred M. Roberts, Carol A. Roberts, D. Bontrager 1990-4-28 4590 Orange Rancho Mission Viejo: Christianitos Canyon, 4.0 kilometers E Playa Survey Marker; UTM Z11 37 06 600m N, 4 47 600m E. 174 Comment
  UCR130496  Aristida purpurea var. parishii R. E. Riefner Jr. 2000-8-3 00- 7012 Orange Santa Ana Mountains, North Ranch Policy Plan Area, east of Main Divide Road and Windy Ridge 535 Comment
  SD52987  Arnica discoidea Peter H. Raven 1962-5-18 17751 Orange 4.8 miles above Gate on Silverado Canyon Truck Trail, Santa Ana Mountains 1064 Comment
  RSA417251  Artemisia californica Anstruther Davidson 1907-09 1771 Orange Newport. Comment
  RSA719416  Artemisia californica Fred M. Roberts, Lee Ann Caranza 2006-10-25 6453 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 Comment
  JEPS36924  Artemisia douglasiana L. M. Booth 1932-7-23 1302 Orange Corona del Mar Comment
  UCR103707  Artemisia douglasiana B. G. Pitzer, T. Tennant 1997-11-8 3362 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
  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
  UC489198  Artemisia dracunculus C. V. Meyer 1928-7-30 597 Orange Saunder's Meadow San Jacinto Mts., Saunder's Meadow 1676 Comment
Read comments Nov 12 2014
  RSA784185  Artemisia dracunculus J. D. Olmsted 1959-8-26 837 Orange Along road south of mouth of Black Star Canyon north of Rock Crushing plant 305 Comment
  RSA703138  Artemisia tridentata subsp. tridentata Fred M. Roberts, Arthur Davenport 2003-9-11 6017 Orange Rancho Mission Viego: Donna O'Neill Land Conservancy, Cristianitos Cyn., 85m SSW Sycamore Gate, 35m W of Cristianitos Road. 119 Comment
  IRVC24540  Arthrocnemum subterminale J. Johnson 1976-8-10 Orange Newport [Back] Bay. Newport Beach Comment
  CDA31508  Arundo donax D. G. Kelch 2006-12-9 06 .559-B Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  UCR193932  Arundo donax A. C. Sanders, Fred M. Roberts 2008-7-16 35875 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  IRVC29787  Arundo donax Mark A. Elvin, Dean Kelch 2006-12-9 5310 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  RSA0031759  Arundo donax R. F. Thorne 1977-11-21 50815 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  IRVC14869  Asclepias eriocarpa Gordon A. Marsh, Karlin G. Marsh 1976-7-8 s.n. Orange 0.1km W Casper's Park in fire break; periphery of live oak woodland. Rancho Mission Viejo Comment
  JEPS49870  Asclepias eriocarpa John Thomas Howell 1927-7-16 2785 Orange Rancho Santa Ana Santa Ana Cnayon 152 Comment
  POM201693  Asclepias eriocarpa L. M. Booth 812 Orange Santa Ana Canyon. Comment
  IRVC25009  Asclepias fascicularis Fred M. Roberts 1986-6-27 3034 Orange Mission Viejo: Creek channel along Cabot Rd. near Oso Pkwy. Comment
  RSA686328  Aspidotis californica Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  IRVC177  Asplenium bulbiferum McGuire 1965-5-4 HS0564 Orange Corona del Mar: Bayside Dr.. Southern Coastal Comment
  UCSB52883  Asplenium vespertinum Roberts, Fred; Allen, R. 1983-4-10 Orange Santa Ana Mtns; Upper Hot Springs Canyon, 2.3 km SW Falcon Group Camp; 1.9 km S Los Pinos Peak. 852 Comment
Read comments Feb 26 2013
  POM146199  Aster bernardinus F. M. Reed 1927-11-9 5634 Orange Margin of Hwy, 1 mile S of Tustin. Comment
  RSA793262  Aster exilis R. F. Thorne 1984-1 s.n. Orange Newport Back Bay. Comment
  RSA20375  Astragalus brauntonii Percy C. Everett, E. R. Johnson 1937-11-30 9381 Orange Claymine Canyon to sierra peak Road 609 Comment
  RSA379  Astragalus didymocarpus J. T. Howell 1928-3-17 872 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA749637  Astragalus didymocarpus var. didymocarpus D. E. Bramlet 2008-3-31 4135 Orange 282m East Upper Hicks Haul Rd, Trib. to Limestone Cyn. 1km S of Santiago Cyn Rd. 317 Comment
  RSA743663  Atriplex R. E. Riefner 2006-9-6 6 -425 Orange City of Newport Beach, Newport Bay, Big Canyon Creek drainage near Back Bay Dr. 9 Comment
  RSA752215  Atriplex amnicola R. E. Riefner Jr. 2002-5-4 02 -91 Orange Upper Newport Bay, Jamboree Rd. and Bayview Dr. 15 Comment
Read comments Feb 28 2016
  RSA737231  Atriplex amnicola R. E. Riefner 2006-5-7 06 -178 Orange N end of City of San Clemente, along I5, N side, immediately S of Camino De Estrella exit ramp. 66 Comment
  RSA737242  Atriplex amnicola R. E. Riefner 2005-9-16 05 -666 Orange Upper Newport Bay, E of Bayside Dr. at confluence with Big Canyon. 6 Comment
  RSA696737  Atriplex argentea subsp. expansa J. R. Bruff 1930-10-19 s.n. Orange Delhi Rd. 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
  CAS-BOT-BC172633  Atriplex coulteri Louis C. Wheeler 1934-1-14 2363 Orange Aliso Creek near Laguna 76 Comment
  IRVC23986  Atriplex davidsonii R. De Ruff 1988-5-20 Orange Newport Backbay, north end on western shore, Newport Beach 0 Comment
  IRVC25488  Atriplex davidsonii Fred M. Roberts, Karen Calloway 1987-8-19 3585 Orange San Joaquin Freshwater Marsh, 1.7km NW University of California, Irvine campus center near Fairchild; Irvine 2 Comment
Read comments Feb 1 2020
  CLARK-A1528-2529  Atriplex leucophylla John C. Roos 1937-2-23 1307 Orange Laguna Beach Comment
  POM219183  Atriplex pacifica L. C. Wheeler 1932-6-25 855 Orange Newport Bay. 3 Comment
  RSA5446  Atriplex parryi C. B. Wolf 1932-8-11 s.n. Orange About 2 blocks west of center of town of Lancaster. Antelope Valley, Mojave Desert. 718 Comment
Read comments Oct 29 2013
  RSA249  Atriplex patula J. T. Howell 1927-10-29 s.n. Orange Bryant Ranch, near Long Beach. 15 Comment
  RSA539447  Atriplex polycarpa Karlin G. Marsh 1991-10-29 s.n. Orange Anaheim: Santa Ana Canyon, south side of Santa Ana River just east of Imerial Highway, 4.1km NW Robbers Peak. 87 Comment
  RSA696212  Atriplex rosea Keith E. Hoffmaster 1934-5-31 s.n. Orange Santa Ana. Comment
  POM47596  Atriplex rosea I. M. Johnston 1924-8-29 s.n. Orange 4 miles S of Santa Ana Comment
  RSA184160  Atriplex semibaccata I. L. Wiggins 1965-10-24 20280 Orange Roadside along Skyline Drive near intersection with Raymond Street, Fullerton. Comment
  RSA5955  Atriplex serenana C. B. Wolf 1932-7-7 3846 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
  UC1543075  Atriplex watsonii Donald G. Nelson 1935-6-27 323 Orange s mouth of Newport Bay (on bluffs facing ocean beaches s of Corona del Mar); s of mouth Newport Bay, s of Corona del Mar Comment
  CAS-BOT-BC146057  Avena barbata Ira L. Wiggins 1966-2-18 20450 Orange Roadside 0.5 mile west of entrance to Rancho Santa Ana, near end of Orangthorpe Avenue. Comment
  RSA734992  Avena barbata A. C. Sanders, T. B. Salvato 2008-5-13 35378 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR192481  Avena barbata A. C. Sanders, Fred M. Roberts 2008-3-25 34517 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA40  Avena barbata J. T. Howell 1927-6-17 166 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  HSC9025  Avena fatua J. W. Johnson 1961-3-29 Orange Newport Beach Comment
  RSA0015958  Avena fatua Fred M. Roberts 2012-4-24 7535 Orange San Joaquin Hills: Buck Gully, above main trail, 2 km W Signal Peak and about 0.4 km S San Joaquin Hills Road. 155 Comment
  UCSB47968  Avena fatua Roberts, Fred 1980-3-3 Orange Hills 1.5 km ENE of Dana Hills High School; Dana Point 85 Comment
  CAS-BOT-BC66214  Azolla filiculoides John Thomas Howell 1927-7-6 2663 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  IRVC23261  Azolla filiculoides Fred M. Roberts 1985-7-17 2029 Orange San Juan Capistrano: San Juan Creek at 405 Fwy bridge Southern Coastal 21 Comment
  IRVC25484  Baccharis douglasii Fred M. Roberts 1987-6-21 3467 Orange Bolsa Chica salt marsh: 1.0km SSE Chica Hill near east Garden Grove-Wintersburg Channel southern coastal 0 Comment
  IRVC6594  Baccharis douglasii Charles W. Sexton 1972-6-17 Orange Bolsa Chica salt marsh southern coastal 0 Comment
  CDA10367  Baccharis emoryi Hill, Lee 1951-9-9 B 51632 Orange Santa Fe Railroad tracks, near Red Hill Avenue, Santa Ana. 0 Comment
  LA37359  Baccharis emoryi David S. Verity; Fred Lang 1972-7-14 sn Orange hills behind South Laguna, at the top of Pacific Island Drive Comment
  RSA232226  Baccharis emoryi James Henrickson 1970-10-3 5361 Orange 2 miles NW of Huntington Beach, common along raised roadsides in southern open portion of Bolsa Chica Salt Marsh. 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
  RSA650812  Baccharis glutinosa Daniel Truong 1991-5-13 26 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  RSA0008326  Baccharis malibuensis R. E. Riefner, Adrian Wolf 2000-8-23 20 -732 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  UCR205874  Baccharis malibuensis R. E. Riefner Jr. 2008-6-25 08- 175 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Road 483 Comment
  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-BC99441  Baccharis pilularis Carl B. Wolf 1934-12-26 6262 Orange south end of town of San Clemente 15 Comment
  CAS-BOT-BC99444  Baccharis pilularis Carl B. Wolf 1934-12-26 6262 Orange so. end of town of San Clemente 15 Comment
  CAS-BOT-BC99445  Baccharis pilularis B. Pitzer; T. Tennant 1997-11-8 3376 Orange Crystal Cove State Park: Pelican Point Area, grassland area between Pacific Coast Hwy & the bike trail 30 Comment
  IRVC29757  Baccharis pilularis Barry S. Nerhus, Mark A. Elvin 2006-11-4 10 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  RSA613761  Baccharis pilularis B. Pitzer, T. Tennant 1997-11-8 3374 Orange Crystal Cove State Park, Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. 30 Comment
  RSA699766  Baccharis pilularis Keith E. Hoffmaster 1934-1 s.n. Orange Santa Ana 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
  CAS-BOT-BC106730  Baccharis salicifolia C. L. Hitchcock; C. V. Muhlick 22118 Orange 1 mi. n. of Brea, at mouth of Brea Canyon, along intermittent stream. Comment
  RSA5325  Baccharis salicifolia B. D. Stark 1932-12-30 4470 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA685928  Baccharis salicifolia Fred M. Roberts 2003-3-27 5627 Orange Rancho Mission Viejo:Donna O'Neill Land Conservancy, Chistianitos Canyon, along North Ride Trail, 1.37 km N Sycamore Gate, 0.36 km W Chistianitos Rd. 114 Comment
  UCR100454  Baccharis salicifolia B. G. Pitzer 1996-4-30 2769 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UC536888  Baccharis salicina L. M. Booth Orange Newport Beach Comment
  UCD129396  Baccharis salicina P. B. Kennedy 1925-1-12 1 Orange Irvine Ranch, on range. Comment
  UCR101363  Baccharis salicina A. C. Sanders, P. J. MacKay, Tim Thomas, O. F. Clarke 1998-10-17 22265 Orange Coastal flats, Bolsa Chica, near Bolsa Bay, south of Warner Ave., east of the Pacific Coast Highway .3 Comment
  UCR207594  Baccharis salicina O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 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
  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
  SD233267  Barbarea orthoceras R. F. Thorne, E. W. Lathrop, G Marshs. 1977-5-4 49818 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA733821  Barbarea vulgaris Keith E. Hoffmaster 1935-5-5 623 -424 Orange San Juan Canyon., Santa Ana Mts. Comment
  CDA7901  Bassia hyssopifolia Adam Ontiveros 2008-7-8 PDR# 1543672 Orange Anaheim, 1750 S. Douglass Rd 0 Comment
  CLARK-A1528-966  Bassia hyssopifolia Patricia A. Andrews 1975-6-26 5909 Orange Capistrano Bay Beach 9 Comment
  SBBG47295  Bassia hyssopifolia R. N. Philbrick 1973-8-31 Orange marsh just E of University of California, Irvine Comment
  RSA5447  Bassia hyssopifolia C. B. Wolf 1932-9-13 4025 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
  CAS-BOT-BC75513  Batis maritima A. Davidson M. D. 1907-9-7 s.n. Orange Newport. Comment
  UCR14055  Batis maritima Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  UCR20637  Batis maritima A. C. Sanders 1974-6-19 00174 Orange Upper Newport Bay 3 Comment
  POM17841  Bebbia juncea Philip A. Munz 1923-9-7 7771 Orange Mouth of Trabuco Canyon 305 Comment
  RSA92401  Bebbia juncea F. W. Peirson 1923-9-8 4043 Orange Trabucco Canyon. 427 Comment
  CAS-BOT-BC106377  Bebbia juncea var. aspera Helen D. Geis 1902-12-6 s.n. Orange Santiago Creek Comment
  UCSB48366  Berberis aquifolium var. dictyota Roberts, Jr., Fred 1982-4-18 Orange Santa Ana Mtns.; Hot Springs Canyon, 0.6 km. SW Falcon Group Camp 1033 Comment
  SD247611  Berberis dictyota R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49716 Orange Santa Ana Mountains: Bedford Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail Comment
  IRVC26420  Berberis nevinii Mark A. Elvin 2004-2-22 3150 Orange UCI Arboretum Southern Coastal 15 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
  RSA730992  Bidens laevis Fred M. Roberts 2006-11-15 6466 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  RSA594871  Bidens laevis Fred M. Roberts, W. R. Ferren, David E. Bramlet 1991-11-29 4826 Orange Santa Ana Canyon: adjacent to Yorba Linda Regional Park, ca. 1.8 km E of Imperial Highway crossing 91 Comment
  IRVC19422  Bidens pilosa R. L. Allen 1983-2-12 A630 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  CAS-BOT-BC127999  Bidens pilosa Ira L. Wiggins 1965-11-5 20328 Orange Orange grove on N. side of Chapman Avenue near Kraemer Road, Fullerton Comment
  CLARK-A1528-3075  Bloomeria crocea Michelle Loef 1973-5-25 250573-4 Orange Brea 91 Comment
  RSA698736  Bloomeria crocea Minor Warne 1934-04 s.n. Orange Panerama Heights Comment
  JEPS63987  Bolboschoenus maritimus L. M. Booth 1932-5-30 1133 Orange Newport Bay Comment
  RSA0093406  Bolboschoenus maritimus D. E. Bramlet 2009-11-20 4418 Orange South Coast: San Diego Creek between Irvine and Newport Back Bay. 4 Comment
  UCR266417  Bolboschoenus maritimus D. E. Bramlet 2009-11-20 4418 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  CAS-BOT-BC145863  Bothriochloa barbinodis John Thomas Howell 1927-6-5 2437 Orange Southern Puente Hills, Santa Ana Canon [Canyon]. 152 Comment
  UCSB52876  Bothriochloa barbinodis Roberts, Fred 1983-3-16 Orange Laguna Beach, Sycamore Hills, central ridge; 1.4 km NNE jct of El Toro and Laguna Cyn Rds; 5.4 km ESE Signal Peak 177 Comment
  POM201613  Bowlesia incana L. M. Booth 1932-5-19 1065 Orange Newport Bay. Comment
  SEINET3156098  Bowlesia septentrionalis E. K. Balls 1950-3-7 14446 Orange Administration Grounds of Rancho Santa Ana Botanic Garden Comment
  CDA22564  Brachypodium distachyon J. B. Anderson 1966-4-22 615 Orange San Joaquin Hills: Central Los Trancos Canyon. 0 Comment
  RSA0067892  Brassica campestris R. W. Hufstader 1971-2-13 11 Orange Collected in Villa Park on Loma St. by the road. 243 Comment
  UCR228806  Brassica geniculata Dick Newell, Don Millar 2011-5-10 149 Orange Peninsular Range; Santa Ana Mtns., along MWD service road between Outdoor Education Center and Fremont Canyon, 0.2 mi. above Peters Cyn. Rd. 193 Comment
  RSA0066349  Brassica nigra A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34626 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 280 Comment
  SD143983  Brassica nigra Scott D. White 1993-3-5 1118 Orange Marine Corps Air Station: SE of Red Hill Ave and NE of Barranca. 14 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-BC30255  Brassica nigra Alice Eastwood 1936-4-5 s.n. Orange Santa Ana. Bixby Botanic Garden. Comment
  CAS-BOT-BC36768  Brassica rapa Ira L. Wiggins 1965-12-5 20365 Orange 2 miles east of Atwood on north side of Orangethorpe Avenue. Comment
  UCR112098  Brassica rapa subsp. sylvestris A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23339 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  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
  UCR267866  Brassica tournefortii D. E. Bramlet 2011-3-1 4799 Orange Peninsular Range; Santa Ana Mountains, Bee Canyon, margin of sediment basin in canyon just above the Foothill Transportation Corridor (241), c. 150 ft. east of the road 166 Comment
  RSA642460  Brodiaea filifolia Tony Bomkamp 1995-6-5 s.n. Orange Rancho Mission Viejo. Ridgeline and lots 1 mi N of Ortega Hwy and W of Canada Gobernadora. Comment
  RSA655022  Brodiaea filifolia David E. Bramlet 1998-5-21 2625 Orange On slope adjacent to a tributary of Segunda Deshecha Canada, approximately 610m north of the existing access road (Telaga Valley Dr.) and 2.9 km north of Avenida Pico., The site is approximately 1.93 km west of Cristianitos Canyon & 640m west of Wilson Camp Road. 201 Comment
  UCR142299  Brodiaea filifolia Robert Hamilton 1998-6-19 s.n. Orange SCE easement N of the Foothill Transportation Corridor; 1.3 km N of El Toro Road and 1.6 km east of Portola Parkway 290 Comment
  CAS-BOT-BC144300  Bromus arizonicus Ira L. Wiggins 1966-3-1 20482 Orange Margin of grain field along western edge of campus, California State College at Fullerton. Comment
  POM156460  Bromus carinatus Le Roy Abrams 1903-4-18 3271 Orange Capistrano Comment
  RSA562762  Bromus carinatus Steve Boyd, Timothy S. Ross 1992-5-19 7417 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon. Comment
  UCD58224  Bromus carinatus R. M. Love 1942-4-16 s.n. Orange 8 mi. east of Santa Ana. Comment
  UCR191216  Bromus carinatus A. C. Sanders 2008-4-29 35144 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
  CAS-BOT-BC149325  Bromus carinatus var. carinatus Le Roy Abrams 1903-4-18 3271 Orange Trabuco arroyo near Capistrano. Comment
  CAS-BOT-BC156204  Bromus catharticus John Thomas Howell 1956-3-11 30924 Orange Yorba Linda Comment
  RSA159490  Bromus catharticus John H. Thomas, I. L. Wiggins 1962-6-27 308 Orange Santa Ana. Comment
  RSA650632  Bromus hordeaceus Daniel Truong 1991-5-5 13 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  RSA696328  Bromus hordeaceus Keith E. Hoffmaster 1928-4-25 s.n. Orange Santa Ana Comment
  RSA696603  Bromus hordeaceus Rankin s.n. Orange Santa Ana. Comment
  UCD59518  Bromus rubens Ira L. Wiggins 1966-3-16 20526 Orange Near entrance to Firestone Boy Scouts Reservation. Comment
  UCR140797  Bromus rubens Robin G. Marushia 2004-5-4 015 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
  RSA542557  Bromus rubens Fred M. Roberts 1989-3-17 4206 Orange Aliso-Wood Canyon Regional Park: Aliso Canyon, 3.4 kilometers SSE Moulton Peak., UTM 3711900m N, 432900m E 55 Comment
  UCR219802  Cakile maritima 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
  UCR42432  Cakile maritima A. C. Sanders 1986-5-31 6525 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
  RSA716783  Calamagrostis koelerioides Fred M. Roberts, Carol A. Roberts, Devoree Volgado 1995-5-6 4941 Orange Santa Ana Mountains region: Ridge between Hot Springs Cyn. and Viejo Cyn., San Juan Trail, 3.7 km WNW Lower San Juan Picnic Ground. 622 Comment
  RSA699296  Calandrinia Minor Warne 1934-03 s.n. Orange Laguna Canyon Forks Comment
  RSA737234  Calandrinia breweri R. E. Riefner 2008-3-12 08 -34 Orange Irvine Ranch Reserve, North Irvine Ranch, East Fork of upper Fremont Canyon along Black Star SCE Rd. 716 Comment
  UCR192106  Calandrinia breweri A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35314 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR203903  Calandrinia breweri R. E. Riefner Jr. 2008-5-20 08- 104 Orange Irvine Ranch Reserve, north Irvine Ranch, western Fremont Canyon, Windy Ridge Road 531 Comment
  CAS-BOT-BC438319  Calandrinia ciliata C. L. Hitchcock 1966-3-15 24136 Orange 1/2 mile e. of Brea Comment
  UCR191231  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-4-22 35043 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map 457 Comment
  UCR192454  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-3-25 34576 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
  UCR222642  Calandrinia ciliata D. E. Bramlet 2008-4-28 4245 Orange Peninsular Range; Santa Ana Mtns. Foothills, east fork of upper Weir Canyon, 1.2 km east of the main canyon and 91 m west of the upper boundary of Gypsum Canyon 409 Comment
  CAS-BOT-BC438321  Calandrinia ciliata Ira L. Wiggins 1966-3-5 20513 Orange About 1/2 mi. W. of El Toro Post Office, along Highway S-18. Comment
  RSA697067  Calendula officinalis Kenneth Beard 1934-02 s.n. Orange Garden, Santa Ana Comment
  RSA723962  Callistemon viminalis R. E. Riefner Jr. 2006-11-12 06 -559 Orange City of Newport Beach, Irvine Coast Trail at San Diego Creek, near SR-73 crossing, S of Jamboree Rd. 3 Comment
  POM11615  Callitriche marginata P. A. Munz 1921-4-12 4479 Orange Laguna Beach; 1 mile north of Laguna on bluff near clubhouse. 61 Comment
  RSA799947  Callitriche marginata Justin M. Wood 2011-4-12 3660 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA610237  Callitriche marginata Fred M. Roberts, Tony Bomkamp, R. E. Riefner 1997-2-27 4979 Orange Costa Mesa: Fairview Park, 0.1 km W Canyon School. 24 Comment
  POM6460  Calochortus catalinae Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2624 Orange Santa Ana River Canyon. Comment
  RSA0013968  Calochortus catalinae Fred M. Roberts 2008-4-23 6926 Orange Lomas de Santiago: Loma Ridge, north end along Sheriff Rd., 1.6 km SE Peters Canyn Reservoir dam. 340 Comment
  RSA0125887  Calochortus catalinae Fred M. Roberts 2008-5-14 6970 Orange Lomas de Santiago: Loma Ridge, Bee Peak, 0.1 km W summit. 515 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
  RSA582810  Calochortus catalinae Mark Elvin 1995-05 4 Orange Santa Ana Mountains: Starr Ranch, National Audubon Society; Bell Creek, junction of Leslie Love Trail. 213 Comment
  RSA734347  Calochortus catalinae A. C. Sanders, Linda Farley, Fred M. Roberts, David E. Bramlet 2008-4-1 34639 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 396 Comment
  RSA749297  Calochortus catalinae Fred M. Roberts 1999-4-21 5183 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
  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
  UCR191776  Calochortus catalinae A. C. Sanders, Fred M. Roberts 2008-3-25 34568 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  CAS-BOT-BC483376  Calochortus invenustus L. R. Abrams 1901-6-15 1848 Orange Mt. Santiago Comment
  SEINET7067525  Calochortus persistens A. G. Vestal 1947-6-12 s.n. Orange Grade to Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 445302mE, 3724321mN. Comment
Read comments Feb 20 2020
  POM6366  Calochortus splendens Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2625 Orange Santa Ana River Canyon. Comment
  RSA511062  Calochortus splendens Steve Myers 1989-5-4 s.n. Orange Head of Black Star Canyon, Santa Ana Mountains. 640 Comment
  RSA68633  Calochortus splendens Frank W. Peirson 1924-5-31 4669 Orange 5 miles southeast of Laguna Beach. 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
  UCR191023  Calochortus splendens A. C. Sanders, Fred M. Roberts 2008-4-22 35013 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  RSA369038  Calochortus splendens N. C. Cooper 1944-6-4 1316 Orange Elsinore Mountain. 1067 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
  SEINET7067518  Calochortus weedii A. G. Vestal 1947-6-12 s.n. Orange Upper San Juan Canyon on Route 74 to Lake Elsinore in Cleveland National Forest. Coordinate datum: NAD27. UTM Zone 11, 452352mE, 3716538mN. Comment
  UC284975  Calochortus weedii P. A. Munz 1923-6-14 7104 Orange trail from Glen Ivy to Santiago Peak; Santa Ana Mts. 914 Comment
Read comments Apr 1 2013
  POM256710  Calochortus weedii var. intermedius W. Pequegnat 1940-6-14 s.n. Orange Yaeger's Meadow, Santa Ana Mountains. Comment
  RSA699753  Calochortus weedii var. intermedius Fred M. Roberts, David E. Bramlet 2003-6-6 5884 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.7km SW int. Cristianitos and TRW Rds. and 0.23km W of SDG&E substation. 119 Comment
  RSA788916  Calochortus weedii var. intermedius Fred M. Roberts 1999-6-10 5238 Orange Lomas de Santiago: Loma Ridge, Agua Chinon Cyn., 1.3 km S Bolero Spring and 2.2 km W Bolero Lookout. 285 Comment
  UCR132986  Calochortus weedii var. intermedius Adrian Wolf 2000-6-22 470 Orange Santa Ana Mtns., North Ranch Policy Plan Area, East access road, Black Star Canyon 610 Comment
  UCR43238  Calochortus weedii var. intermedius Kathy Harper 1986-6-7 s.n. Orange Santa Ana Mtns., Modjeska Canyon Road just below Tucker Wildlife Sanctuary Comment
  UCR160851  Calochortus weedii var. weedii Mark S. Brunell 1991-7-4 s.n. Orange Peninsular Range; Santa Ana Mtns., Hwy 74 c. 3 miles east of San Juan Hot Springs 427 Comment
  POM351397  Calycadenia tenella M. B. Dunkle 5379 Orange San Juan Canyon Comment
  POM4959  Calycadenia tenella D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  RSA602115  Calycadenia tenella Scott D. White 1997-5-6 5042 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 Comment
  CHSC70486  Calystegia macrostegia R. A. Schlising 1973-6-25 3104 Orange SW of Corona; along dead-end road 2.1 mi SW of junction with Hwy 71. Comment
  RSA732151  Calystegia macrostegia A. C. Sanders, Fred M. Roberts 2008-4-22 35016 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
  UCR16115  Calystegia macrostegia S. Riddell 1973-5-17 730517- 22 Orange Hwy S-18, 10 mi east of Interstate Hwy 5 91 Comment
  UCR197690  Calystegia macrostegia A. C. Sanders, Fred M. Roberts 2008-9-18 36074 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  CSUSB664  Calystegia macrostegia Dean Jones 1966-4-12 Orange Imperial Highway, about 1.5 miles north of Riverside Freeway [91]. 335 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
  CSUSB674  Calystegia macrostegia subsp. intermedia Kirby W. Brown 1963-5-5 Orange Stevens Canyon, Irvine Ranch. 121 Comment
  RSA394914  Calystegia macrostegia subsp. tenuifolia H. L. Bauer 1929-5-7 s.n. Orange Santa Ana Canyon Comment
  RSA0008257  Calystegia sepium subsp. limnophila L. M. Booth 1932-6-15 1192 Orange S.E. of Huntington Beach. Comment
  UCR16118  Calystegia soldanella N. J. Moriarty 1973-5-20 730520- 4 Orange Huntington Beach, 0.5 mi. north of Brookhurst Street on the W side of Pacific Coast Hwy (=Hwy 1) Comment
  RSA0039799  Camissonia bistorta Scott D. White, Amanda Duchardt 2003-5-1 9153 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  RSA542487  Camissonia bistorta Fred M. Roberts, Carol A. Williams 1988-4-12 3922 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon, northwest of Dripping Springs, 2.7 km NW Bolero Lookout. 143 Comment
  RSA678499  Camissonia bistorta Fred M. Roberts, Robt. Allen, Carol A. Roberts 2003-5-11 5843 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive. 76 Comment
  CSUSB161  Camissonia bistorta Patricia Healy 1968-5-11 Orange Cameo Shores, 1 mile from Corona del Mar, on beach cliff. Comment
  RSA497  Camissonia californica J. T. Howell 1927-6-26 213 Orange Claymine Canyon near Sierra Peak. 244 Comment
  SEINET8043936 Image available Camissonia californica Dick Newell, Don Millar 2015-1 403 Orange Peninsular Range; Santa Ana Mtsn. Foothills: Agua Chinon Wash, 1 mile NE of Portola and the 241 Toll Rd./Foothill Transp. Corridor. 245 Comment
  UCR222623  Camissonia cheiranthifolia T. B. Salvato 2010-10-27 5108 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
  UCR42387  Camissonia cheiranthifolia A. C. Sanders 1986-5-31 6523 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
  NY679591  Camissonia cheiranthifolia subsp. suffruticosa L. Abrams 1917-6-23 6576 Orange Balboa. Comment
  RSA698255  Camissonia cheiranthifolia subsp. suffruticosa Minor Warne 1934-04 s.n. Orange Sand hills along the coast. 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
  RSA598919  Camissonia ignota Scott D. White 1997-3-28 4847 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  POM21182  Camissonia intermedia Helen D. Geis 1902-03 s.n. Orange Santiago Creek bed. Comment
  CAS-BOT-BC160446  Camissoniopsis cheiranthifolia subsp. suffruticosa H. E. McMinn 1924-7-19 1291 Orange Sunset Beach Comment
  CAS-BOT-BC160448  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange Sunset Beach Comment
  CAS-BOT-BC160451  Camissoniopsis cheiranthifolia subsp. suffruticosa William M. Klein 1960-6-14 1457 Orange San Clemente State Park 7 Comment
  CAS-BOT-BC160453  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange Sunset Beach Comment
  SDSU8589  Camissoniopsis cheiranthifolia subsp. suffruticosa R. M Beauchamp 1968-2-17 768 Orange Beside rod in NW side of Dana Point. Comment
  UCSB22957  Camissoniopsis cheiranthifolia subsp. suffruticosa McMinn, H. 1924-7-19 Orange Sunset Beach Comment
  UC635403  Camissoniopsis intermedia H. L. Mason 1926-4-25 2926 Orange 5 mi s Laguna Comment
  SD181434  Camissoniopsis micrantha Valerie Soza, Kevin Clark, et al. 2001-4-4 1125 Orange Seal Beach, U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  CAS-BOT-BC37129  Capsella bursa-pastoris Ira L. Wiggins 1966-3-22 20543 Orange Near bottom of Silverado Canyon, near end of road about 5 miles above Ranger Station, Cleveland National Forest. Comment
  CSUSB653  Cardamine californica R. Cooper 1968-2-11 S. N. Orange San Joaquin Hills, near Laguna Beach Comment
  POM188931  Cardamine californica var. integrifolia Marcus E. Jones 1931-3-23 s.n. Orange Laguna. Comment
  RSA484624  Cardamine californica var. integrifolia E. Crow 1929-4-9 305 Orange Corona Skyline road, Santa Ana Mts. Comment
  POM187376  Cardaria chalepensis Ed Johnson s.n. Orange Westminster. Comment
  RSA696167  Cardaria draba Keith E. Hoffmaster 1932-5-30 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC384760  Cardionema ramosissimum H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  RSA0015954  Cardionema ramosissimum Fred M. Roberts 2012-5-10 7568 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
  UC1543081  Cardionema ramosissimum Donald G. Nelson 1935-4-14 288 Orange mesa facing Newport Bay (along main coast hwy., Newport Beach); Newport Beach Comment
  POM293161  Cardionema ramosissimum Lyman Benson 1946-4-27 s.n. Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  CAS-BOT-BC119007  Carex pellita Helen D. Geis 1902-4-1 559 Orange Unspecified Comment
  CAS-BOT-BC118486  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Peat Lands Comment
  CAS-BOT-BC118494  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Santa Ana, Peat lands Comment
  POM21633  Carex schottii F. W. Peirson 1924-2-9 4524 Orange Between Wintersberg and the sea. Comment
  RSA759112  Carex spissa Robt. Allen, Reginald Durant 2008-9-28 s.n. Orange Laurel Spring, just below Harding Truck Trail. Survey Waypoint #85. Comment
  UCSB48106  Carex spissa Fritzke, S.; Roberts, Fred 1982-4-3 Orange Santa Ana Mtns.: Lower Hot Springs Canyon; Lazy W Road; 2.4 km. N by road; San Juan Guard Station; 1.4 km. NNW Juan Rancho Survey Mark 240 Comment
Read comments Mar 18 2011
  SEINET10447211  Carpobrotus aequilaterus David B. Dunn 1971-8-13 Dunn 18124 Orange Cultivated plants vicinity of Laguna Beach. Comment
  RSA696447  Carpobrotus chilensis Minor Warne 1934-4-7 s.n. Orange New Port Beach Comment
  SD40041  Carpobrotus chilensis Edith A. Purer 1932-8-31 4881 Orange Orange county along Route 101 Comment
  SEINET10447228  Carpobrotus chilensis Charlene A. Bennett 1976-7-22 Bennett 444 Orange Cultivated and native plants collected around the San Clemente Beach area. 3 Comment
  RSA420738  Castilleja Albert J. Perkins 1913-2-13 s.n. Orange Peralta. Comment
Read comments Jun 16 2012
  RSA588724  Castilleja affinis Fred M. Roberts 1990-5-7 4606 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  UCR106285  Castilleja affinis B. G. Pitzer, M. Georgiady 1997-4-5 3075 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
  UCR140803  Castilleja affinis Robin G. Marushia 2004-4-16 022 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
  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
  UCSB52430  Castilleja affinis subsp. affinis Roberts, Fred; Marsh, K. 1983-2-25 Orange Laguna Beach; Temple Hill, Canyon Acres Canyon; 1.1km NW Top of the World Sch; 1.7km NE Thurston Sch 220 Comment
  SBBG52723  Castilleja applegatei subsp. martinii C. Davidson 1977-5-18 5628 Orange Bear Springs, Santa Ana Mtns 1219 Comment
  UC1063470  Castilleja exserta A. Lewis 1934-3-1 369 Orange Black Star Canyon; Corona Quad. 457 Comment
  UC511102  Castilleja exserta Lyman Benson 1932-3-26 3191 Orange Dana Point 60 Comment
  RSA749523  Castilleja exserta subsp. exserta Fred M. Roberts 2008-4-8 6848 Orange Lomas de Santiago: Loma Ridge, Upper Dripping Springs Cyn., 1.0 km NE Bee Peak, Irvine Ranch Conservancy. 458 Comment
  RSA789224  Castilleja exserta subsp. exserta Naomi Fraga 2009-5-11 2717 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  UC27265  Castilleja exserta subsp. exserta C. W. Hamlin 1896-1 17 Orange Buena Park Comment
  RSA278316  Castilleja foliolosa C. W. Tilforth, Walter Wisura 1979-5-23 1807 Orange Mouth of Aliso Canyon, south Laguna. Comment
  UC1081507  Castilleja foliolosa H. L. Mason 1925-4-25 2904 Orange 5 mi s Laguna Comment
  RSA588889  Castilleja minor subsp. spiralis Fred M. Roberts Jr. 1990-6-4 4665 Orange Hall Canyon, 1.8 km NNW Mustang Spring at east edge of Flying B Ranch 421 Comment
  RSA731797  Castilleja minor subsp. spiralis Fred M. Roberts, Sandy Leatherman 2007-11-9 6640 Orange Santa Ana Mtns.: San Juan Canyon along San Juan Creek, 0.2km E community of San Juan Hot Springs. 222 Comment
  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
  UCR266296  Caulanthus heterophyllus D. E. Bramlet 2008-4-3 4153 Orange Peninsular Range; Santa Ana Mountains, South Bee Canyon, Bowerman landfill site, 1.2 km south of the Bee Canyon access road, and 122 m west of the active landfill 224 Comment
  RSA304750  Ceanothus crassifolius James R. Shevock 1971-2-25 197 Orange Mojeska Cyn, Santa Ana Mts. 305 Comment
  RSA733938  Ceanothus crassifolius L. C. Hull 1934-2-11 s.n. Orange Black Star Canyon Rd. Comment
  RSA733939  Ceanothus crassifolius R. H. McArthur 1934-2-10 s.n. Orange Santiago Canyon above Modjeska Comment
  RSA17220  Ceanothus integerrimus var. puberulus Carl B. Wolf 1936-6-22 8002 Orange Santa Ana Mts. Slopes of Modjeska Pk. at abouit the Head of Harding Canyon. 1220 Comment
  RSA708727  Ceanothus integerrimus var. puberulus Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6221 Orange northwest slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.61km NNW summit Modjeska Peak. 1407 Comment
  RSA467  Ceanothus megacarpus J. T. Howell 1928-2-6 807 Orange Claymine Canyon, Sierra Peak, Santa Ana Mts. 244 Comment
  RSA698619  Ceanothus megacarpus Dorothy Sammis s.n. Orange Trabuco Canyon. 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
  RSA95392  Ceanothus megacarpus F. W. Peirson 1923-3-23 4192 Orange Hills back from beach, Aliso Creek, near Laguna Beach. 122 Comment
  SEINET12210836  Ceanothus megacarpus W. Knight, Knight, I. 1982-1 4482 Orange Tilden Botanic Garden, Berkeley. Originally collected at Laguna Beach Comment
  CAS-BOT-BC50508  Ceanothus megacarpus var. megacarpus John Thomas Howell 1927-7-24 2828 Orange Claymine Canyon, n. Santa Ana Mts. 152 Comment
  SBBG4382  Ceanothus megacarpus var. megacarpus M. Van Rensselaer 1941-12-7 1748 Orange facing the sea and overlooking S Laguna, ca. 3 mi S of Laguna Beach Comment
  UCSB22737  Ceanothus megacarpus var. megacarpus Van Rensselaer, Maunsell 1941-7-12 Orange about 3 miles South of Laguna Beach Comment
  RSA797657  Ceanothus oliganthus Robert F. Thorne, E. W. Lathrop 1977-5-18 49760 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail Comment
  SD247717  Ceanothus oliganthus R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49701 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  SD42370  Ceanothus oliganthus var. orcuttii P. C. Everett 1935-6-19 7234 Orange Santa Ana Mts., Main divide motorway junction with Tabuco Canyon Truck trail. 1219 Comment
  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
  UCR103213  Ceanothus spinosus Scott D. White 1997-2-19 4691 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA5269  Ceanothus tomentosus var. olivaceus Carl B. Wolf, B. D. Stark 1932-12-19 4436 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  UC1495811  Cenchrus ciliaris Jan West 1983-10-8 Orange Freeway right of way along the Newport Freeway (#55) at its intersection with Chapman Ave. Orange (city of Orange) Comment
  SD234768  Cenchrus longisetus R. E. Riefner Jr. 2003-11-30 03 486 Orange South Coast: Santa Ana, 55 Freeway near Brookhollow St. 32 Comment
  RSA562805  Centaurea melitensis Steve Boyd, Timothy S. Ross 1992-5-20 7477 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
Read comments Apr 29 2008
  UCR109767  Centaurea melitensis R. D. Goeden, Don W. Ricker 1965-6-21 s.n. Orange Dana Point 61 Comment
  UCR80034  Centaurea melitensis Scott D. White 1992-10-1 953 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
  SD245254  Centaurea melitensis R. F. Thorne, W. E. Lathrop, W. Wisura 1977-7-8 49610 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station. Comment
  UCD130042  Centaurea melitensis C. Davidson; G. Benny 1971-6-15 1549 Orange Brea Canyon, 1/2 mile north of Central Avenue, along Brea Cr, near bridge. Comment
  RSA391517  Centaurium venustum Albert J. Perkins 1916-6-15 s.n. Orange Santa Ana, Santiago Canyon. 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
  RSA761931  Centaurium venustum Suzanne Espino 2005-4-26 2 Orange Santa Ana Mountains, Caspers Wilderness Park, East Ridge Trial. Near water tank at E. 168 Comment
Read comments Jun 6 2020
  RSA0040038  Centranthus ruber Anonymous 1933-10-13 s.n. Orange Santa Ana. Comment
  UCSB69958  Centromadia fitchii Bramlet, D. 2008-9-17 Orange Coastal Plains and Basins; South Coastal Plain region; Upper Newport Bay, West Mesa, 76 m. E Irvine Ave. and 305 m. S of University Dr. 20 Comment
Read comments Jul 17 2016
  CAS-BOT-BC123545  Centromadia parryi subsp. australis David Daniels Keck 1933-9-29 2537 Orange Seal Beach. Comment
  SD218273  Centromadia parryi subsp. australis Mark A. Elvin 2003-8-24 3012 Orange Southern coastal: San Joaquin Hills, Irviine, UCI, 100 m north of the intersection of Shady Canyon Drive and Bonita Canyon Road. 71 Comment
  UC523555  Centromadia parryi subsp. australis David D. Keck 1933-9-17 2524 Orange Westminster Comment
  UCD20136  Centromadia parryi subsp. australis Donald W. Kyhos 1962-9-23 62- 225 Orange Along Pacific Coast Highway and Balboa Drive, about 1 mile south of Los Angeles- Orange County line. Comment
  RSA680733  Cerastium glomeratum Scott D. White 2003-3-21 8811 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  CAS-BOT-BC400156  Ceratophyllum demersum John Thomas Howell 1927-8-13 2987 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  RSA617695  Cercocarpus betuloides Scott D. White 1996-12-20 4637 Orange Above Modjeska Canyon: Proposed water tank site. 427 Comment
  RSA785759  Cercocarpus betuloides Doris Bowers 1966-4-3 637 Orange Black Star Canyon 305 Comment
  UCR100180  Cercocarpus betuloides Scott D. White 1996-12-20 4637 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  UCR231186  Cercocarpus betuloides A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39938 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1125 Comment
  CAS-BOT-BC142122  Cercocarpus betuloides var. betuloides John Thomas Howell 1927-6-26 2612 Orange Claymine Canyon, n. Santa Ana Mts. 243 Comment
  SEINET10686161  Cercocarpus minutiflorus Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 5 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  UC1584343  Cestrum nocturnum A. C. Sanders 1990-10-6 10187 Orange sw end Newport Bay (North Star County Beach area, ca 2 km inland of Hwy 1) Comment
Read comments Jul 24 2007
  RSA734595  Chaenactis artemisiifolia A. C. Sanders, Fred M. Roberts 2008-5-6 35224 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  SD225727  Chaenactis artemisiifolia R. K. Brummitt 1998-5-23 19996 Orange 22 km NE of San Juan Capistrano on Rte. 74; dry roadisde in rocky canyon 299 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
  UCR191239  Chaenactis glabriuscula A. C. Sanders, Fred M. Roberts 2008-4-22 34989 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
  HSC5295  Chaenactis glabriuscula var. glabriuscula J. W. Johnson 1961-3-29 Orange Newport Beach Comment
  LA203102  Chaenactis glabriuscula var. glabriuscula Lawrence M. Booth; 1932-5-18 1056 Orange Newport Bay Comment
  POM351784  Chaenactis glabriuscula var. glabriuscula M. B. Dunkle 1935-3-3 4350 Orange San Juan Canyon. 457 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
  RSA576457  Chamaesyce polycarpa var. polycarpa F. W. Peirson 1924-5-31 s.n. Orange 5 miles southeast of Laguna Beach. Comment
  IRVC846  Chamomilla suaveolens C. Weir 1965-4-17 Orange Newport Beach; Balboa Island. Southern Coastal Comment
  IRVC26715  Chasmanthe aethiopica Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3158 Orange UCI Arboretum Southern Coastal 15 Comment
  SEINET3869782  Cheilanthes clevelandii M. D. Windham 1998-3-31 98 -088 Orange Along tributary of Hot Spring Canyon in the Santa Ana Mts. ca. 3.00 km SE of Crow Spring. Cleveland N.F. Canada Gobernadora Quad ( 7 1/2 min. ).; 0 320 Comment
  RSA685783  Cheilanthes newberryi M. B. Dunkle 1934-6-18 3981 Orange San Juan Canyon; Southern Coastal 305 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
  RSA725963  Chenopodium album R. E. Riefner 2006-10-8 06 -484 Orange South Coast: Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Rd. 51 Comment
  RSA731927  Chenopodium album Fred M. Roberts, Sandy Leatherman 2007-11-27 6683 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  POM225561  Chenopodium album P. A. Munz 1936-6-30 14175 Orange 5 miles south of Garden Grove. Comment
  RSA184162  Chenopodium album I. L. Wiggins 1966-5-25 20664 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton. Comment
  RSA696210  Chenopodium album Keith E. Hoffmaster 1927-5-18 s.n. Orange Santa Ana. Comment
  RSA423411  Chenopodium ambrosioides Albert J. Perkins 1923-6-17 s.n. Orange Sycamore St., Santa Ana. 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
  UCR233741  Chenopodium berlandieri Fred M. Roberts 2008-6-26 7061 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
  POM201802  Chenopodium berlandieri var. sinuatum L. M. Booth 1933-9-2 1389 Orange Santa Ana River; flood bed near coast of Orange. 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
  RSA749307  Chenopodium californicum Fred M. Roberts, Linda Farley 2008-3-28 7035 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
Read comments Mar 23 2020
  UCR209380  Chenopodium californicum Fred M. Roberts, Linda Farley 2008-3-28 7035 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
Read comments Mar 23 2020
  POM201793  Chenopodium macrospermum var. farinosum L. M. Booth 1933-9-8 1390 Orange Anaheim Marsh. Comment
  RSA751792  Chenopodium murale A. C. Sanders, Fred M. Roberts 2008-7-3 35686 Orange upper Weir Canyon, along Windy Ridge Rd. at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  UCR154290  Chenopodium murale Mark A. Elvin 2004-5-2 3403 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR193780  Chenopodium murale A. C. Sanders, Fred M. Roberts 2008-7-3 35686 Orange Peninsular Range; Santa Ana Mtns., upper Weir Canyon, along Windy Ridge Rd. at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  UCR209345  Chenopodium murale Fred M. Roberts 2008-4-15 6901 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, east ridge, Conservation Trail, 1.6 km east-southeast of Rattlesnake Reservoir Dam and 2.7 km west-southwest of Bee Peak, Irvine Ranch Conservancy 172 Comment
  RSA650315  Chenopodium murale Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange 60 Comment
  UCR61247  Chlorogalum parviflorum Jeri Hirshberg 1988-7-7 s.n. Orange Santa Ana Mountains, Upper Blind Canyon, W-facing slopes below the transmission tower. Comment
  UCR233744  Chlorogalum pomeridianum Fred M. Roberts 2008-6-12 7045 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge, along 'Calochortus Ridge' near West Loma Ridge Road north of Haul Road, 2.6 km NW of Bee Peak, Irvine Ranch Land Conservancy 417 Comment
  UCR79271  Chorizanthe fimbriata Steve Boyd, T. S. Ross 1992-5-19 7423 Orange Santa Ana Mtns., San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) north into Aliso Canyon 457 Comment
  RSA743372  Chorizanthe procumbens Fred M. Roberts 2008-4-2 6842 Orange Dana Point: Dana Point Headlands, CNLM Preserve south of NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 45 Comment
  JEPS57639  Chorizanthe staticoides Lawrence M. Booth 1932-5-12 1031 Orange Newport Bay. Comment
  POM2200  Chorizanthe staticoides D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach Comment
  RSA392687  Chorizanthe staticoides M. B. Dunkle 1938-6-23 5378 Orange San Juan Canyon. Comment
  RSA548860  Chorizanthe staticoides Coleen Cory 1990-5-24 s.n. Orange Rancho Mission Viejo: Trampas Canyon, c.a. 1.5km S Hwy 74 (Township 8 S, Range 7 W, sec. 2). 150 Comment
  RSA588786  Chorizanthe staticoides Fred M. Roberts, Kathy Keane 1990-4-18 4576 Orange Rancho Mission Viejo: Chiquita Rdge, west of Canada Chiquita, 2.0 km N Median Rancho Survey Marker 152 Comment
  RSA588851  Chorizanthe staticoides Fred M. Roberts, Kathy Keane 1989-6-28 4392 Orange Laguna Niguel: Just beyond end of Le Conte Rd along ridge, 0.6 km SW summit of Niguel Hill. 195 Comment
  IRVC27934  Chrysanthemoides monilifera A. C. Sanders, Mark A. Elvin 2003-10-12 27324 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  IRVC17045  Chrysanthemum coronarium J. Schram 1965-4-14 Orange Calif. 1. Laguna Beach 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
  POM186287  Cicuta bolanderi Joseph A. Ewan 1932-7-29 7729 Orange Large colony (plants 4-8 ft.) in backwater of marsh. Newport Lagoon Comment
  POM48464  Cirsium arvense F. W. Peirson 1924-10-19 5248 Orange Wintersberg. Comment
  UC218029  Cirsium arvense Ethelbert Johnson 1922-6-12 Orange Xalisco; near Huntington Beach Comment
  RSA2092  Cirsium brevistylum B. D. Stark 1931-5-23 2230 Orange Santa Ana river bottom, SW of Ranch Houses, Rancho Santa Ana 122 Comment
  CAS-BOT-BC280089  Cirsium occidentale var. californicum John Thomas Howell 1927-6-26 2593 Orange Claymine Canon [Canyon], n. Santa Ana Mts. 243 Comment
  POM352203  Cirsium occidentale var. californicum M. B. Dunkle 1933-5-30 3580 Orange Santa Ana Canyon. Comment
  RSA68335  Cirsium occidentale var. occidentale G. R. Campbell 1951-5-30 16154 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest. 152 Comment
  IRVC22223  Cirsium vulgare H. Camp 1985-8-15 6 Orange Bell Canyon, 2.1km NNW Visitor Center, Casper's Regional Park 126 Comment
  RSA234513  Cirsium vulgare James Henrickson 1970-7-25 5066 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March. 0 Comment
  RSA643430  Cirsium vulgare R. D. Goeden, D. W. Ricker 1965-7-7 s.n. Orange Puente Hills: Brea Blvd. at Tonner Cyn Rd. confluence of Brea and Tonner Canyons, NE edge of Brea 146 Comment
  RSA0013962  Cistanthe monandra Fred M. Roberts, David E. Bramlet 2008-5-13 6954 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  UC373523  Clarkia bottae C. L. Hitchcock 1928-5-5 49 Orange mouth Santa Ana Canyon 150 Comment
  RSA652350  Clarkia deflexa Robert Lloyd 1948-5-22 s.n. Orange Santa Ana Canyon 226 Comment
  RSA751313  Clarkia purpurea A. C. Sanders, Fred M. Roberts 2008-5-6 35275 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  CAS-BOT-BC233842  Claytonia parviflora subsp. parviflora Ira L. Wiggins 1966-3-22 20548 Orange Bottom of Silverado Canyon, about 5 mi. above Ranger Station, Cleveland National Forest Comment
  RSA184092  Claytonia perfoliata subsp. mexicana I. L. Wiggins 1966-3-22 20548 Orange Silverado Canyon about 5 miles above Ranger Station, Cleveland National Forest. Comment
  RSA663157  Clematis lasiantha R. E. Riefner 2000-6-1 20 -455 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 473 Comment
  RSA787106  Clematis lasiantha Keith E. Hoffmaster 1932-4-17 500 Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  JEPS5750  Clematis ligusticifolia Lawrence M. Booth 1932-7-21 1290 Orange Anaheim Creek Comment
  UC537273  Clematis ligusticifolia Lawrence M. Booth 1932-7-21 1290 Orange Anaheim Marsh Comment
  POM499  Cleome isomeris D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  RSA607432  Cleome isomeris L. C. Wheeler 1932-6-25 868 Orange Newport Bay. 3 Comment
  RSA789221  Clinopodium chandleri Naomi S. Fraga, Duncan S. Bell 2009-5-11 2721 Orange Chiquita Trail 762 Comment
  SEINET945698  Clitoria mariana Paul O. Schallert 1949-1 4870 Orange Near Maitland. Comment
  RSA449087  Cneoridium dumosum Thekla Mohr 1920-6-1 s.n. Orange Laguna. Comment
  RSA702764  Cneoridium dumosum Scott D. White, Michael Honer 2004-5-17 10393 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  SEINET8726617 Image available Cneoridium dumosum Lytton J. Musselman 1977-1 5469 Orange above Pacific Ocean at Laguna Beach near Nyes Road. Comment
  RSA0117446  Collinsia concolor A. C. Sanders, Fred M. Roberts 2008-4-22 35026 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado. 1200 Comment
  RSA0117461  Collinsia concolor Naomi Fraga 2009-5-11 2713 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  SEINET10308068 Image available Collinsia heterophylla Norman C. Cooper 1944-6-4 1361 Orange [Peninsular Range; Santa Ana Mountains]; San Juan Canyon, lower camp ground 396 Comment
  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
  IRVC963  Convolvulus arvensis J. Morgan 1965-3-12 Orange Corona del Mar High School. Newport Beach Comment
  RSA603362  Convolvulus arvensis Scott D. White 1997-6-12 5346 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
  RSA643432  Convolvulus arvensis R. D. Goeden, D. W. Ricker 1965-6-15 s.n. Orange NW of El Toro: Tustin Township, near Borrego Canyon Wash, SE edge of El Toro M.C. Air Station. 107 Comment
  UCR109770  Convolvulus arvensis R. D. Goeden, Don W. Ricker 1965-6-15 s.n. Orange Santiago Blvd., Villa Park 91 Comment
  UCR267211  Convolvulus simulans Fred M. Roberts, Megan Lulow 2009-3-18 7136 Orange Santa Ana Mtns., LOMAS DE SANTIAGO: Loma Ridge, Lower Hicks Canyon, about 350 meters from south side of Haul Road, 1.9 km E Rattlesnake Cyn. Reservoir Dam and 2.1 km W Bee Peak 172 Comment
  RSA703142  Conyza bonariensis Fred M. Roberts 2003-9-11 6014 Orange Rancho Mission Viejo; Donna O'neill Land Conservancy, Cristianitos Cyn., 0.79 km N of Sycamore Gate, 0.23 km W of Christianitos Road. 126 Comment
  RSA573304  Conyza bonariensis Steve Boyd, Timothy S. Ross 1994-9-14 8361 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Aliso Canyon. 341 Comment
  CAS-BOT-BC286165  Conyza canadensis Ira L. Wiggins 1965-10-24 20286 Orange At corner of Yorba Linda Blvd. and State College Blvd., Fullerton Comment
  IRVC29827  Conyza canadensis Tom McCrainie, Mark A. Elvin 2006-9-23 1 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  RSA749046  Conyza canadensis A. C. Sanders, Fred M. Roberts 2008-8-7 36008 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
Read comments Dec 21 2010
  UC537038  Conyza canadensis Lawrence M. Booth 1932-12-13 1375 Orange Newport Bay Comment
  RSA743520  Conyza coulteri Fred M. Roberts, Carol A. Roberts 2008-9-28 7111 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 75 Comment
  UCR241916  Conyza coulteri Fred M. Roberts, Lee Ann Caranza 2009-9-23 7162 Orange Southern Coastal Plain, Dana Point, Dana Point Headlands, CNLM Dana Point Preserve, old Marguerite Road bed just west of the Nature Center and just east of the terminus of Dana Strands Road, 0.7 km west pier, Dana Point Harbor 73 Comment
  JEPS41844  Corethrogyne filaginifolia L. M. Booth 1932-7-29 1332 Orange Newport Bay Comment
  RSA93100  Corethrogyne filaginifolia F. W. Peirson 1924-8-29 5087 Orange Inland 2.5 miles from Balboa Beach Comment
  RSA703091  Corethrogyne filaginifolia var. virgata Fred M. Roberts, Arthur Davenport 2003-9-11 6004 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
  UC1719498  Coronopus didymus D. Atwood 1993-3-29 17727 Orange Huntington Beach along Beach Blvd. ca. 1/2 mi N of the beach Comment
  UCSB52470  Cotula australis 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
Read comments Jan 25 2020
  UCR102026  Cotula coronopifolia B. G. Pitzer 1997-4-15 3154 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
  RSA696770  Cotula coronopifolia Minor Warne 1934-5-13 s.n. Orange Santa Ana River Bank. Comment
  CAS-BOT-BC427770  Crassula connata C. B. Wolf 1931-3-6 1844 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope Santa Ana Mts. 457 Comment
  IRVC25399  Crassula connata Fred M. Roberts 1987-4-3 3338 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
  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
  RSA0135553  Crassula connata var. connata David E. Bramlet 2003-3-14 3345 Orange Coastal Plains & Basins; South Coastal Plain region: Newport Beach. 30.5m west of Avocado & 183m W of McArthur Blvd & 190m N of the Newport Beach Library. 49 Comment
  JEPS50009  Crassula connata var. erectoides Alice King April 1908 Orange Santa Ana Comment
  POM6361  Cressa truxillensis P. A. Munz 1919-5-4 2687 Orange Laguna 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
  RSA394756  Cressa truxillensis Ella M. Kennedy 1923-5-2 s.n. Orange Laguna Beach Comment
  IRVC16606  Cressa truxillensis Gordon A. Marsh 1970-7-17 Orange Santa Ana River, south bank near Coast Hwy. Newport Beach Comment
  RSA480686  Croton californicus Josephine Derigo 1941-7-18 s.n. Orange Anaheim Comment
  RSA697576  Croton californicus Kenneth Beard s.n. Orange East of S. A. River on Edinger Road Comment
  UC537263  Croton californicus Lawrence M. Booth 1934-5-26 1123 Orange Newport Bay Comment
  RSA715703  Croton setiger Fred M. Roberts, Robert L. Allen 2005-10-15 6314 Orange entrance to Falcon Group Camp, 2.1km ESE Los Pinos Peak and 0.3km NE campground. 1008 Comment
  RSA0043358  Crypsis schoenoides Fred M. Roberts, Laura Cohen 2012-10-31 7715 Orange San Joaquin HillsL Laguna Lake 1 (Upper Laguna Lake), north end. Laguna Coast Wilderness Park, ca. 5.1 km ENE Signal Hill. 113 Comment
  UCR197692  Crypsis schoenoides A. C. Sanders, Fred M. Roberts 2008-9-18 36076 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  RSA640  Cryptantha clevelandii J. T. Howell 1928-2-25 837 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA798545  Cryptantha clevelandii R. F. Thorne, E. W. Lathrop 1977-5-18 49747 Orange Santa Ana Mountains: summit of Santiago Peak 1733 Comment
  RSA6632  Cryptantha clevelandii P. A. Munz, L. T. Street, G. Williams 1919-5-3 2619 Orange Santa Ana River Canyon. Comment
  IRVC16220  Cryptantha intermedia Gordon A. Marsh 1978-5-17 Orange UCI Ecological Preserve, Irvine Comment
  IRVC22194  Cryptantha intermedia Fred M. Roberts 1985-4-8 1632 Orange San Joaquin Hills, Turtle Rock area, hill 1.1km SE French Hill, Irvine 196 Comment
  IRVC25394  Cryptantha intermedia Fred M. Roberts 1987-4-3 3343 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
  JEPS22385  Cryptantha intermedia John Thomas Howell 1927-6-5 2435 Orange Santa Ana Canyon 152 Comment
  RSA687518  Cryptantha intermedia Fred M. Roberts, D. E. Bramlet 2003-4-10 5651 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, ridge between Cristianitos Cyn. and Segunda Deshecha Canada, 1.54km W Gato Gate and 1.59km NW Edison substation. 262 Comment
  RSA699869  Cryptantha intermedia L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  IRVC1638  Cryptantha microstachys Fred M. Roberts 1985-4-8 1638 Orange San Joaquin Hills, Turtle Rock area, hill 1.1km SE French Hill, Irvine 196 Comment
  POM13831  Cryptantha microstachys P. A. Munz 1922-4-28 5042 Orange Leach Canyon, Santa Ana Mountains 670 Comment
  UCR191223  Cryptantha microstachys A. C. Sanders 2008-4-29 35127 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR209352  Cryptantha microstachys Fred M. Roberts 2008-4-8 7169 Orange Lomas de Santiago, Loma Ridge, Upper Dripping Springs Cnyn, 1.0 km northeast of Bee Peak, Irvine Ranch Conservancy 458 Comment
  UCR209382  Cryptantha microstachys Fred M. Roberts, Linda Farley 2008-3-28 6825 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  RSA0029035  Cryptantha microstachys Keith E. Hoffmaster 1934-4-22 349 Orange Santiago Canyon near Silverado. Comment
  POM201754  Cucurbita foetidissima L. M. Booth 1932-6-29 1227 Orange Newport Bay. Comment
  RSA487  Cucurbita foetidissima J. T. Howell 1927-7-28 504 Orange Near ranch houses, Rancho Santa Ana. 152 Comment
  RSA703679  Cucurbita foetidissima Fred M. Roberts, D. E. Bramlet 2004-11-5 6130 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.92 km SSW Gato Gate and 0.06 km W Cristianitos Road. 81 Comment
  UCR141347  Cupaniopsis anacardioides Robert DeRuff 2001-1 488 Orange Southern Coast, Newport Beach, Newport Back Bay, near edge of 23rd Street Creek 12 Comment
  RSA352380  Cupressus forbesii C. B. Wolf 1935-1-2 6279 Orange Slopes of Sierra Peak, west of Claymine Canyon, along road to Peak. 670 Comment
  UCR112935  Cupressus forbesii R. E. Riefner Jr. 2000-1-18 20- 101 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Main Divide Road, top of Gypsum Canyon at Windy Ridge 518 Comment
  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
  POM17859  Cuscuta californica P. A. Munz 1923-7-8 7330 Orange Santa Ana River Canyon Comment
  SD245330  Cuscuta californica Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49628 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station. Comment
  CDA39941  Cuscuta campestris T. C. Fuller 1958-8-5 5121 Orange North side of Orangethorpe Ave., east of Brookhurst Road, Anaheim. 0 Comment
  RSA503199  Cuscuta ceanothi G. D. Wallace, G. Cromwell 1966-4-16 457 Orange W edge of Cleveland Nat. For. about 5 mi. E of San Juan Capistrano, in the Santa Ana Mountains, in Hot Springs Canyon. Comment
  RSA697260  Cuscuta pentagona Keith E. Hoffmaster 1934-7-15 s.n. Orange Near Santa Ana Comment
  RSA0014999  Cuscuta subinclusa Fred M. Roberts, D. E. Bramlet 2008-5-13 6958 Orange Lomas de Santiago: Loma Ridge, north end, west of Sheriff Rd., 1.4 km SE Peters Canyon Reservoir dam. Irvine Ranch Conservancy. 263 Comment
  RSA751790  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts 2008-7-3 35688 Orange Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir. 275 Comment
  SD175815  Cuscuta subinclusa D. G. Kelch 2006-12-9 06 558 Orange Irvine. University Dr. along tidal creek just E of I-73. 9 Comment
  RSA0036642  Cuscuta subinclusa Robt. Allen 2007-8-11 s.n. Orange Peninsular Ranges; Santa Ana Mountains region: Western arm of Modjeska Peak, at junction of North Main Divide Road and road spur to the summit. 1531 Comment
  SD255135  Cuscuta subinclusa R. F. Thorne 1977-11-21 49989 Orange Santa Ana Mountains: San Juan Canyon ca. 2.0 miles above San Juan Fire Station. Comment
  RSA759248  Cyclospermum leptophyllum Robt. Allen 2008-4-9 s.n. Orange Irvine Valley College, N of N entrance to Student Services building. 45 Comment
  RSA761940  Cyclospermum leptophyllum Robt. Allen, Edward Read 2005-10-20 12531 Orange Fullerton, campus of California State University. West end of Science Laboratory Center building, in garden adjacent to Perimeter Road. 72 Comment
  IRVC14840  Cynara cardunculus B. Newman 1965-3-14 Orange Dana Point Comment
  UCR109772  Cynara cardunculus R. D. Goeden, Don W. Ricker 1965-6-15 s.n. Orange Canada de Los Alisos, El Toro 122 Comment
  CAS-BOT-BC190296  Cynodon dactylon John Thomas Howell 1927-7-27 2849 Orange Santa Ana River bottom, Santa Ana Canon [Canyon]. 152 Comment
  CAS-BOT-BC190298  Cynodon dactylon Ira L. Wiggins 1965-11-6 20353 Orange Kramer Oil Estates, near well No. 14, near end of county road to Rancho Santa Ana. Comment
  UCD60070  Cynodon dactylon Beecher Crampton 1965-10-27 7578 Orange 2 miles east of Irvine, Irvine Blvd. Comment
  UCR193008  Cynodon dactylon A. C. Sanders 2008-5-28 35443 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCR246515  Cynodon dactylon Fred M. Roberts 2013-5-30 7778 Orange Lomas de Santiago, Santiago Creek Wash, at Santiago Canyon Road bridge, south side, 0.3 km west of the junction of Silverado and Santiago Canyon Roads 299 Comment
  UCR80012  Cynodon dactylon Scott D. White 1992-10-20 972 Orange Vicinity of city of Brea, Immediately north of Carbon Canyon Rd & east of Placentia Avenue +-1mi (air) SSEof Tonner Canyon. 183 Comment
  RSA0043356  Cyperus erythrorhizos Fred M. Roberts, Laura Cohen 2012-10-31 7712 Orange San Joaquin Hills. Upper Laguna Lake, north end. Laguna Coast Wilderness Park, c. 5.1 km east northeast of Signal Hill. 113 Comment
  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
  RSA443819  Cyperus esculentus 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
  RSA92102  Cyperus esculentus F. W. Peirson 1923-9-6 4032 Orange Along canal east of Olive. Comment
  RSA5914  Cyperus laevigatus Carl B. Wolf 1932-7-2 3813 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  RSA5915  Cyperus laevigatus Carl B. Wolf 1932-7-2 3812 Orange Carbon Canyon, 1/8 mile below La Vida Springs [La Vida Mineral Springs]. 21 Comment
  UC838255  Cyperus odoratus P. A. Munz 1922-9-2 6359 a Orange Laguna Lake 45 Comment
  RSA0036013  Cyperus odoratus Robert F. Thorne 1977-11-21 50802 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  SD260849  Cyrtomium falcatum R. E. Jr. Riefner 2012-2-2 12 19 Orange City of Dana Point, cliff and rocky intertidal area N 0.2 mi of Salt Creek lagoon. 9 Comment
  SD260851  Cyrtomium falcatum R. E. Jr. Riefner 2012-1-16 12 5 Orange City of Newport Beach, Corona Del Mar, beach area west of Morning Canyon Road. 0 Comment
  UCD169744  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). 432 Comment
  JEPS12207  Datura stramonium Lawrence M. Booth 1932-7-30 1345 Orange near Newport Beach (Santa Ana River Basin); , near Newport Beach Comment
  RSA184130  Datura wrightii I. L. Wiggins 1965-10-27 20303 Orange Roadside and along creek bank, just SW of Los Angeles Co. line, on Brea Canyon Rd. Comment
  UCR192977  Datura wrightii A. C. Sanders, Fred M. Roberts 2008-6-17 35465 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA732273  Daucus pusillus A. C. Sanders 2008-4-29 35126 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
  RSA743377  Daucus pusillus Fred M. Roberts 2008-4-9 6857 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  UCD127408  Daucus pusillus Lawrence M. Booth 1932-5-12 1033 Orange Newport Bay. Comment
  UCR192465  Daucus pusillus A. C. Sanders, Fred M. Roberts 2008-3-25 34533 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR217459  Daucus pusillus Mark A. Elvin 2003-3-30 2383 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA0048655  Daucus pusillus Keith E. Hoffmaster 1934-4-22 189 Orange Santa Ana Mts. [Orange or Riverside County] Comment
  CAS-BOT-BC299321  Deinandra fasciculata Scott D. White; Brian Leatherman 1998-1-26 6069 Orange Site of proposed Research Park, southwest of main campus circle, ca. halfway between between Berkeley Ave. and new freeway (Bonita Cyn.), Univ. of Calif. Irvine Campus 36 Comment
  CAS-BOT-BC299323  Deinandra fasciculata C. B. Wolf 1932-7-2 3811 Orange Valencia Ave., Olinda opposite the Olinda Pilgrim Church 152 Comment
  CHSC26108  Deinandra fasciculata James Henrickson 1970-7-24 5001 Orange 3 miles NW of Huntington Beach near sandy 'Rabbit' Island in Bolsa Chica Salt Marsh near Inner Bolsa Bay. Roadside. 0 Comment
  CHSC26109  Deinandra fasciculata Roger Shelby 1970-8-22 Orange Ca. 4 mi. N. of Huntington Beach, 1 1/2 mi. So. of Warner Ave. off Pacific Coast Hwy. in Bolsa Bay area. 0 Comment
  CAS-BOT-BC299326  Deinandra fasciculata Joseph Andorfer Ewan 1932-7-28 7695 Orange Newport Bay near power house Comment
  CAS-BOT-BC299328  Deinandra fasciculata Palmer Stockwell 1934-5-12 60 Orange Laguna Beach Comment
  RSA657681  Deinandra fasciculata Michael J. Graeser 1988-5-8 29 Orange Orange. Santiago Canyon Road. 1 mile north of Chapman Ave. Across from Holy Sepulcher Cemetary. Comment
  UCR267218  Deinandra paniculata Fred M. Roberts 2014-7-25 7893 Orange South Coastal Plain, SAN JOAQUIN HILLS: Laguna Canyon, just west of Laguna Lake 1, 4.8 km ENE Signal Hill, Laguna Coast Wilderness Park 116 Comment
  UC527601  Delphinium cardinale B. D. Stark 1931-6-6 2231 Orange Rancho Santa Ana 137 Comment
  RSA48922  Delphinium parryi P. A. Munz 1949-5-26 13381 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  CAS-BOT-BC116420  Delphinium patens subsp. hepaticoideum C. B. Wolf 1931-3-6 1856 Orange 1/2 mile below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  RSA433238  Dendromecon rigida subsp. rigida Christopher Davidson 1977-5-18 5603 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  RSA627745  Descurainia pinnata Scott D. White 1998-1-26 6068 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, ca. halfway between Berkeley Av. and new freeway (Bonita Cyn.) 37 Comment
  CAS-BOT-BC43187  Descurainia pinnata subsp. brachycarpa Helen D. Geis 1902-3-1 s.n. Orange Santa Ana River. Comment
  RSA3133  Descurainia pinnata subsp. menziesii C. B. Wolf 1932-2-26 2663 Orange Native to area near Prunus ilicifolia bed, Rancho Sant Ana Botanic Garden. 137 Comment
  POM369419  Descurainia pinnata subsp. menziesii Albert J. Perkins 1921-3-15 s.n Orange Garden, Santa Ana. Comment
  RSA1322  Dicentra ochroleuca J. T. Howell 1928-7-10 1096 Orange Black Star Canyon, Santa Ana Mts. 701 Comment
  RSA794327  Dicentra ochroleuca Justin M. Wood 2010-3-31 1444 Orange [Santa Ana Canyon:] Santa Ana River floodplain, 0.25 miles north of Coal Canyon wildlife corrridor, west of Green River Golf Course on bluff south of the river. 122 Comment
  UCR192475  Dichelostemma capitatum A. C. Sanders, Fred M. Roberts 2008-3-25 34543 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCSB52467  Dichelostemma capitatum Roberts, Fred 1983-2-10 Orange Dana Point: hills, 0.7km NE Dana Hills High School 92 Comment
  RSA627752  Dichelostemma capitatum subsp. capitatum Scott D. White 1998-3-18 6215 Orange University of California, Irvine campus: Site of proposed Research Park. Southwwest of main campus circlu, ca. halfway between Berkely Avenue and new freeway (Bonita Canyon). 37 Comment
  POM48839  Dichondra occidentalis Stephen Grout 1904-08 s.n. Orange Three Arches, Laguna Comment
  RSA528053  Digitaria ciliaris A. C. Sanders 1990-10-6 10181 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Highway 1. 1 Comment
  RSA0019263  Dimorphotheca ecklonis R. E. Riefner 2000-3-14 20 -136 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N from Baker Cyn.Road. 304 Comment
  RSA699271  Diosma ericoides Ruth Greenwald, Virginia Pritchard 1938-05 s.n. Orange Santa Ana. 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
  SD247553  Diplachne fusca var. fascicularis R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49632 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs. Roadside ditch. Comment
  SEINET3412116 Image available Diplachne fusca var. uninervia Pat Sawyer 34 Orange from Back Bay area at Newport Beach Comment
  CHSC42169  Diplacus australis L. A. Hinman 1986-3-22 5 Orange Ca. 6 mi nw of San Juan Capistrano, Bell Canyon, 2 mi n of Hwy 74. Ca. 65 yds e of Bell Creek. 128 Comment
  CAS-BOT-BC151046  Diplacus brevipes A. C. Sanders 2008-4-29 35125 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
  CAS-BOT-BC152262  Diplacus clevelandii P. C. Everett 1936-8-28 8233 Orange Santa Ana Mts., Main Divide Motorway, head of Trabuco Canyon 1158 Comment
  CAS-BOT-BC150841  Diplacus puniceus F. W. Pennell; E. M. Harvey 1949-6-29 26803 Orange Ortega Highway, above San Juan Capistrano 365 Comment
  CAS-BOT-BC150843  Diplacus puniceus Alice Eastwood; John Thomas Howell 1937-4-24 3930 Orange 2 miles east of San Juan Hot Springs Comment
  RSA0045523  Diplacus puniceus Stephen Bruff s.n. Orange Lemon H[e]ights [a neighborhood of Tustin?]. PR8. Comment
  UCR91554  Diplotaxis muralis A. C. Sanders 1990-10-6 10186 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  UCR186585  Dipsacus fullonum Robert DeRuff 2001-9-18 516 Orange Southern Coast, Newport Beach, Newport Back Bay, 0.4 mi. north of Big Canyon on Backbay Dr. 1 Comment
  CAS-BOT-BC195674  Distichlis spicata Carl B. Wolf 1932-7-2 3816 Orange Carbon Canyon, 1/8 mi. below La Vida Springs 213 Comment
  RSA696324  Distichlis spicata Keith E. Hoffmaster 1927-5-22 s.n. Orange Santa Ana. Comment
  UCD64386  Distichlis spicata var. stolonifera C. B. Wolf Date Unknown 3815 Orange Orange Co. Comment
  POM488  Draba cuneifolia var. integrifolia C. F. Baker 1904-4-1 4126 Orange Anaheim. Comment
  RSA732165  Drymocallis glandulosa A. C. Sanders, Fred M. Roberts 2008-4-8 34762 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  UC1950970  Drymocallis glandulosa A. C. Sanders with Fred M. Roberts 2008-4-8 34762 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. El Toro 7.5' Quad. Comment
  HSC46674  Drymocallis glandulosa var. glandulosa Christopher Davidson 1977-5-18 5633 Orange Cleveland National Forest, Falcon campground 1006 Comment
  RSA124720  Dryopteris arguta E. K. Balls, Percy C. Everett 1957-11-25 22843 Orange Trabuco Canyon, 1.7 mi. w. of entrance to Holy Jim Canyon, 670 Comment
  UCR222640  Dryopteris arguta D. E. Bramlet 2008-4-1 4138 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, upper Hicks Canyon, 24 m south of the Haul Road 302 Comment
  RSA703678  Dryopteris arguta D. E. Bramlet 2003-5-1 3426 Orange Donna O'Neill Reserve. Ephemeral drainage north of the North Ridge trail 457m west of Cristianitos Rd. and 1.07 km north of the E-W access road. 128 Comment
  IRVC26522  Dudleya anthonyi Mark A. Elvin 2004-5-22 3451 Orange UCI Arboretum Southern Coastal 15 Comment
  CAS-BOT-BC109565  Dudleya blochmaniae subsp. blochmaniae Reid Moran 1950-4-24 3388 Orange San Clemente. Comment
  CAS-BOT-BC427990  Dudleya caespitosa John Thomas Howell 1927-6-9 2472 Orange North side Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC428265  Dudleya edulis Cecil Hart 1928-5-27 s.n. Orange Laguna Beach Comment
  RSA12839  Dudleya edulis C. B. Wolf 1934-12-29 2316 Orange San Clemente. Comment
  UC806718  Dudleya edulis R. V. Moran 1948-6-23 3097 Orange n-facing cliff near mouth Aliso Canyon (s of Laguna Beach); ; near mouth of Aliso Canyon, S of Laguna Beach, Orange Co. 7 Comment
  UC933265  Dudleya edulis Reid Moran 1949-5-28 3258 Orange Aliso Canyon Laguna Beach Comment
  UC2059977  Dudleya edulis K. Nakai 1978-7-17 391 Orange Aliso Canon, ca. 200 yards from California Highway 1. Comment
  CAS-BOT-BC411409  Dudleya lanceolata Reid Moran 1951-6-22 3495 Orange Aliso Canyon, Laguna Beach Comment
  UC1015136  Dudleya lanceolata Reid Moran 1951-6-22 3495 Orange Aliso Canyon Laguna Beach Comment
  UCR281568  Dudleya lanceolata Mitch Provance 2017-6-9 617- 87 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.25 miles NNE of intersection with Castlewood Dr. 164 Comment
  UCR59229  Dudleya lanceolata Robert McKernan 1989-5-18 s.n. Orange Santa Ana Mtns Foothills, Serrano Creek, 4 km north of Trabuco Rd. at the end of Lake Forest Rd. 6 km east of El Toro Military Base 274 Comment
  RSA552936  Dudleya multicaulis Fred M. Roberts 1989-5-7 4337 Orange Lomas De Santiago: 1.8km W Santiogo Reservoir Spilway, 4.0 km SW Sierra Peak. 213 Comment
  RSA584711  Dudleya multicaulis Fred M. Roberts 1989-6-7 4377 Orange Santa Ana Mountains: Upper Gypsum Canyon along ridge between Gypsum and Blind Canyon, c. 6.3 km WSW Sierra Peak. 411 Comment
  UC536908  Dudleya multicaulis Lawrence M. Booth 1932-5-18 1054 Orange Newport Bay Comment
  UCR52607  Dudleya multicaulis Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Canyon, head of Gypsum Canyon, along roadbanks 412 Comment
  CAS-BOT-BC417040  Dudleya pulverulenta John Thomas Howell 1927-7-26 2840 Orange SE fork of Claymine Canyon, N. Santa Ana Mts. 304 Comment
  RSA703883  Dudleya pulverulenta subsp. pulverulenta Fred M. Roberts, D. E. Bramlet 2004-7-30 6080 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Western slopes of Cristianitos Cyn., 0.25km W Sycamore Gate and Cristianitos Road. 151 Comment
  SEINET3089344  Dudleya stolonifera Reid Moran 1977-1 Orange Comment
  IRVC26520  Dudleya virens subsp. hassei Mark A. Elvin 2004-5-22 3448 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA562748  Dudleya viscida Steve Boyd, Timothy S. Ross 1992-5-19 7444 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
  RSA0045610  Echidiocarya californica Keith E. Hoffmaster 1935-2-9 841 Orange Santa Ana Mts., near El Toro. Comment
  POM1051  Echinochloa colona C. B. Bradshaw s.n. Orange Orange. Comment
  CAS-BOT-BC197174  Echinochloa crus-galli Ira L. Wiggins 1965-9-26 20254 Orange In Carbon Canyon about 3.5 mi. above its mouth Comment
  POM1011  Echinodorus berteroi I. M. Johnston 1918-9-3 2151 Orange Laguna Canyon (at the lakes) 107 Comment
  RSA69476  Echinodorus berteroi F. W. Peirson 1924-5-31 4650 Orange Laguna Canyon, near Laguna Beach 107 Comment
  UC814517  Echinodorus berteroi I. M. Johnston 1918-9-3 2151 Orange Laguna Canyon San Joaquin Hills, Laguna Canyon 106 Comment
  RSA0127350  Echium candicans Fred M. Roberts 2016-5-20 8058 Orange City of Irvine: San Joaquin Hills, Turtle Rock Community along Ridge Route Road, 1.0 km SE summit of French Hill and just NE intersection with Hillsborough Drive. 122 Comment
  RSA753028  Eclipta prostrata A. C. Sanders, Fred M. Roberts 2008-9-18 36069 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 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
Read comments Sep 8 2018
  UCR266405  Ehrharta erecta D. E. Bramlet 2010-3-3 s.n. Orange 1691 Mesa Dr., Newport Beach 16 Comment
  UC1543115  Elatine brachysperma Donald G. Nelson 1935-4-15 302 Orange on road from Garden Grove to Costa Mesa converging near Costa Mesa (toward main highway from Santa Ana) Comment
  POM2923  Elatine californica I. M. Johnston 1918-5-4 s.n. Orange Laguna Canon Comment
  UC1784198  Eleocharis coloradoensis Donald G. Nelson 1935-4-15 297 Orange on road from Garden Grove to Costa Mesa, converging near Costa Mesa, near the main highway from Santa Ana Comment
  UC1784199  Eleocharis macrostachya Donald G. Nelson 1935-4-15 307 Orange on road from Garden Grove to Costa Mesa, converging near Costa Mesa, toward main highway from Santa Ana Comment
  UC217855  Eleocharis macrostachya P. A. Munz 1922-9-2 6354 Orange Laguna Canyon, ponds in Comment
  UC306102  Eleocharis macrostachya Robinson and Crocker 1916-3-29 724 Orange Santa Ana Mountains, marshy regions in foothills Comment
  CAS-BOT-BC113330  Eleocharis montevidensis Helen D. Geis 1902-4-1 507 Orange Santa Ana Comment
  RSA723493  Eleusine coracana subsp. africana R. E. Riefner 2006-10-8 6 -474 Orange City of Irvine, San Diego Creek, between Alton Pwky. and 405 Fwy 51 Comment
  RSA542552  Eleusine indica Fred M. Roberts 1987-8-31 3599 Orange Santa Ana River: adjacent to Santa Ana., UTM 3736150m N 415900m E 27 Comment
  CAS-BOT-BC203834  Elymus X hansenii L. R. Abrams 1901-6-1 1814 Orange Santiago Pk. trail Comment
  RSA798184  Elymus glaucus R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49597 -a Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  UC537289  Elymus glaucus Lawrence M. Booth 1932-6-7 1156 Orange Newport Lagoon; Sidehill Comment
  RSA548877  Elymus multisetus Fred M. Roberts, K. Keane 1988-5-25 4583 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker., UTM 3710600m N, 443550m E. 91 Comment
  UCR93245  Elymus triticoides F. M. Reed 1928-5-10 5883 Orange Laguna Canyon below lakes 91 Comment
  RSA610  Emmenanthe penduliflora J. T. Howell 1927-6-9 72 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA734990  Emmenanthe penduliflora A. C. Sanders, Fred M. Roberts, Amber O Neal 2008-5-9 35280 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  RSA0043349  Encelia californica David Barrios 1991-5-8 30 Orange 1500 ft. northwest of Fairmont Ave and Quail Cir., Yorba Linda. 365 Comment
  RSA221019  Encelia californica E. W. Lathrop 1966-3-23 6082 Orange Skyline Drive between Tin Mine Canyon and Black Star Canyon, 6 miles W of Corona, Santa Ana Mts. 427 Comment
  RSA785305  Encelia californica Doris Bowers 1957-5-16 943 Orange Corona Del Mar 3 Comment
  SBBG60833  Encelia californica M. N. Ackley -Feb-1927 Orange Newport Beach Comment
  UCR223984  Encelia californica Dick Newell, Don Millar 2011-3-1 071 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  IRVC659  Encelia californica L. Burns 1965-5-2 Orange Comment
  RSA746042  Encelia californica Archie F. Iskaq 2006-2-4 1 Orange Southern Coastal: San Joaquin Marsh; NW edge of marsh. Comment
  UC1118064  Encelia californica H. E. Norton 1931-3-1 53 Orange Corona #1 Corona Quadrangle Comment
Read comments Apr 24 2014
  RSA650630  Epilobium adenocaulon var. parishii Daniel Truong 1991-5-13 33 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  CAS-BOT-BC166349  Epilobium canum subsp. canum John Thomas Howell 1927-7-28 2868 Orange Hills on n. side of Santa Ana [Canon] Canyon 182 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
  CAS-BOT-BC5221  Epilobium canum subsp. canum David Daniels Keck 1932-9-30 1905 Orange Dana Point, near San Juan Capistrano. Comment
  UCR182903  Epilobium ciliatum Pat Akers 2006-3-25 PA4 06 Orange Yorba Linda. Santa Ana River on a large (300-400 ft) sandy/cobbly flat. south of La Palma Dr, 0.6-0.9 mi. east of Yorba Linda Dr 122 Comment
  JEPS31485  Epilobium ciliatum subsp. ciliatum L. M. Booth 1932-6-28 1212 Orange Bolsas Creek Comment
  RSA666097  Epilobium pygmaeum Fred M. Roberts, Michelle Lee 2001-6-4 5481 Orange Rancho Mission Viejo: Chiquita Ridge, 0.2km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. 218 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
  UC1543089  Equisetum arvense Donald G. Nelson 1935-4-6 265 Orange e San Juan Capistrano (canyon 200-300 ft below main hwy. ca. 4 mi from summit); Santa Ana Mts., San Juan Canyon Comment
  SD245160  Equisetum arvense R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49566 Orange Santa Ana Mountains: San Joan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UC1543035  Equisetum laevigatum Donald G. Nelson 1935-4-6 263 Orange e San Juan Capistrano (canyon 200-300 ft below main Hwy., ca. 4 mi from Summit); San Juan Canyon Comment
  IRVC14871  Equisetum laevigatum Gordon A. Marsh, K. G. Marsh 1976-7-8 s.n. Orange Santa Ana mtns: 2.7 mi e of San Juan Guard Station on CA 74. Peninsular Ranges Comment
  POM17838  Equisetum telmateia var. braunii Philip A. Munz 1923-9-7 7731 Orange Holy Jim Canyon, Santa Ana Mountains 609 Comment
  SD236144  Eragrostis A. C. Sanders, Fred M. Roberts 2008-9-18 36091 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 299 Comment
  SEINET1908663  Eragrostis A. C. Sanders, Fred M. Roberts 2008-1 36091 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge. 1000 Comment
  RSA734342  Eragrostis barrelieri A. C. Sanders, Linda Farley, Fred M. Roberts, David E. Bramlet 2008-4-1 34633 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  POM21175  Eragrostis cilianensis Helen D. Geis 1902-6-6 s.n. Orange Roadside by Orange bridge. Comment
  CAS-BOT-BC412826  Eragrostis mexicana subsp. virescens R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49567 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA421545  Eremocarpus setiger Albert J. Perkins 1909-7-4 s.n. Orange Laguna Beach. Comment
  UC23530 Image available Eriastrum densifolium subsp. austromontanum C. W. Hamlin 1896-1 50 Orange Buena Park Comment
Read comments Nov 20 2013
  JEPS69115  Eriastrum sapphirinum John Thomas Howell 1927-6-9 2471 Orange Santa Ana Canyon Rancho Santa Ana 213 Comment
  UC947531  Eriastrum sapphirinum A. G. Vestal 1947-6-12 Orange along road bank near base of west facing chaparral slope; Tributary of Trabuco Canyon Comment
  RSA0013856  Eriastrum sapphirinum subsp. dasyanthum Fred M. Roberts 2012-5-10 7564 Orange San Joaquin Hills: Buck Gully, S Fork, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive. 183 Comment
  UCR208079  Eriastrum sapphirinum subsp. dasyanthum M. B. Dunkle 1938-6-23 5380 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon Comment
  CAS-BOT-BC514998  Eriastrum sapphirinum subsp. dasyanthum John Thomas Howell 1927-6-1 2408 Orange Southern Puente Hills in the Santa Ana Canyon 152 Comment
  SD28142  Ericameria pachylepis Carl B. Wolf 1931-10-30 2943 Orange Rancho Santa Ana. 206 Comment
  OBI45880  Ericameria palmeri var. pachylepis B. Pitzer, D. Hawks 1986-10-21 345 Orange Lomas de Santiago, ca. 10 mi E of Santa Ana, in hills N and E of south Coast Gun Club on Jeffrey Rd in Hicks Canyon 183 Comment
  RSA16663  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA16676  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA292464  Ericameria palmeri var. pachylepis James Henrickson 1972-10-21 8076 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. Irrigated grassland eventually to be used for large Newport Beach Business Center. 46 Comment
  RSA751525  Ericameria palmeri var. pachylepis A. C. Sanders, Fred M. Roberts 2008-8-7 35996 Orange Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  CAS-BOT-BC131637  Ericameria parishii var. parishii Robert F. Thorne; J. Olmsted 1963-7-26 32830 Orange In Santa Ana Mts., Cleveland Natl. Forest, Trabugo District 1188 Comment
  UC1118798  Ericameria parishii var. parishii A. Lewis 1934-5-1 414 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quad., Trabuco Canyon 1341 Comment
  CAS-BOT-BC293091  Ericameria pinifolia John Thomas Howell 1927-10-23 3172 Orange On n. side of Santa Ana Canon [Canyon] 152 Comment
  RSA699736  Erigeron foliosus Keith E. Hoffmaster 1934-5-13 s.n. Orange Santa Ana Mountains Comment
  RSA0013964  Erigeron foliosus var. foliosus Fred M. Roberts, David E. Bramlet 2008-5-13 6956 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  UCR277172  Eriobotrya japonica R. E. Riefner Jr. 2014-11-21 14- 390 Orange South Coast, city of Lake Forest, English Canyon, Aliso Creek, vicinity of Trabuco Road at Aliso Creek bridge crossing 146 Comment
  LA67535  Eriodictyon crassifolium David S. Verity; Fred Lang 1972-7-14 sn Orange hills behind South Laguna, at the top of Pacific Island Drive Comment
  RSA721834  Eriodictyon crassifolium Minor Warne 1934-4-14 s.n. Orange Laguna Canyon. Comment
Read comments Jun 24 2009
  RSA0041967  Eriodictyon crassifolium Paul Shirokawa 1998-5-7 23 Orange Cleveland National Forest: Trabuco Ranger District, 3.1 miles from Ortega Highway (State Highway 74) on Main Divide Road. 990 Comment
  RSA748172  Eriodictyon crassifolium var. crassifolium K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 1 Orange Cleveland National Forest, 0.5 mi. N Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mtns., ridge top. 917 Comment
  RSA211  Eriogonum elongatum J. T. Howell 1927-9-24 741 Orange Santa Ana Botany Garden 152 Comment
  POM201759  Eriogonum fasciculatum L. M. Booth 1932-5-18 1057 Orange Newport Bay Comment
  IRVC26729  Eriogonum fasciculatum subsp. foliolosum Peter A. Bowler 2003-4-26 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh. Southern Coastal 9 Comment
  UCR250868  Eriogonum fasciculatum subsp. polifolium Dick Newell, Judy Booth 2014-4-27 365 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Road 0.8 mi. ENE of lower gate 632 Comment
  UC536912  Eriogonum fasciculatum var. fasciculatum Lawrence M. Booth 1932-7-27 1326 Orange Ocean Bluff, Corona del Mar Newport Beach, Corona del Mar Comment
  UC635079  Eriogonum fasciculatum var. fasciculatum Herbert L. Mason 1926-4-25 2917 Orange 5 mi s Laguna Comment
  LA206859  Eriogonum fasciculatum var. foliolosum A. M. Johnson; 1932-4-23 4027 Orange N of Orange Comment
  RSA215  Eriogonum fasciculatum var. foliolosum J. T. Howell 1927-7-24 475 Orange Santa Ana River bottom near Rancho Santa Ana. 152 Comment
  RSA393426  Eriogonum fasciculatum var. foliolosum F. R. Fosberg 1931-6-21 S 5155 Orange Carbon Canyon, Punete Hills. Comment
  CLARK-A1528-3648  Eriogonum giganteum John C. Roos, Lucille Roos 1950-9-25 4992 Orange Santa Ana Canyon Comment
  CAS-BOT-BC253476  Eriogonum gracile Helen D. Geis 1902-3-1 s.n. Orange Santiago Canyon Comment
  CAS-BOT-BC253482  Eriogonum gracile John Thomas Howell 1927-7-24 2832 Orange Claymine Canyon, N. Santa Ana Mts. 152 Comment
  CAS-BOT-BC297332  Eriophyllum confertiflorum Helen D. Geis 1902-12-1 s.n. Orange Santiago Creek Comment
  HSC5621  Eriophyllum confertiflorum T. L. Ackerman 1964-3-28 17 Orange Irvine Park Dr. inside Irvine Park Comment
  RSA0013910  Eriophyllum confertiflorum Fred M. Roberts 2012-4-24 7523 Orange San Joaquin Hills: Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  RSA850  Eriophyllum confertiflorum J. T. Howell 1927-6-26 211 Orange Claymine Canon near Sierra Peak. [canyon] 244 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
  UC507177  Eriophyllum confertiflorum var. confertiflorum L. M. Booth 1932-5-12 1042 Orange Newport Bay Comment
  RSA732159  Erodium botrys A. C. Sanders, Fred M. Roberts 2008-4-22 35034 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado. 1200 Comment
  RSA583212  Erodium brachycarpum R. E. Riefner Jr. 1998-4-17 95 -72 Orange San Clemente State Beach. Comment
  UCR100458  Erodium cicutarium B. G. Pitzer 1996-4-30 2765 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA734609  Erodium moschatum Keith E. Hoffmaster 1927-2-19 413 Orange Santa Ana. Comment
  SD152833  Erodium moschatum Steve Boyd, Tim Ross 1992-5-19 7415 Orange Santa Ana Mts, San Mateo Canyon Wilderness Area. W. edge of wilderness along Lucas Canyon Trail from access road to Rcho Carrillo 7S06 N into Aliso Canyon Comment
  UCR192488  Erodium moschatum A. C. Sanders, Fred M. Roberts 2008-3-25 34555 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR230231  Erodium moschatum Dick Newell, Don Millar 2011-3-15 078 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 219 Comment
  RSA423  Erodium moschatum J. T. Howell 1928-2-7 824 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  IRVC22653  Erysimum capitatum L. Orsak 1973-5-10 Orange Upper Santiago Canyon, top of Joplin Trail, Santa Ana Mountains 1483 Comment
  SD136131  Erythranthe floribunda Dylan T. Hannon 1992-6-12 165 Orange Arroyo Trabuco, below Santa Margarita Parkway Bridge Comment
  RSA0069234  Eschscholzia californica Fred M. Roberts, Lee Ann Caranza 2009-4-7 7139 Orange Dana Point Headlands: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 65 Comment
  RSA0012822  Eucalyptus polyanthemos Fred M. Roberts, Sandy Leatherman 2007-11-9 6648 Orange San Juan Canyon along San Juan Creek, within the community of San Juan Hot Springs. 216 Comment
  OBI53671  Eucalyptus tereticornis Dave Goodward 1987-4-16 4 Orange Irvine Ranch, Boy Scout Camp in Peters Cyn E of Tustin, 1 mi NE of the Irvine Blvd/Myford rd intersection. In an old plantation 80 yrs old Comment
  RSA732086  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-3-25 34531 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  JEPS1722  Eucrypta chrysanthemifolia var. chrysanthemifolia John Thomas Howell 1927-6-21 2566 Orange Rancho Santa Ana; Santa Ana Canyon 152 Comment
  SEINET7073420  Eucrypta chrysanthemifolia var. chrysanthemifolia A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  IRVC25150  Euphorbia albomarginata Fred M. Roberts 1986-9-3 3134 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  CAS-BOT-BC202545  Euphorbia misella Joseph Andorfer Ewan 1932-7-28 7708 Orange Corona del Mar Comment
Read comments Oct 29 2020
  OBI82199  Euphorbia misera Unknown 2012-10-16 12 -518 Orange City of Dana Point, Dana Point Harbor, 'Bluff Top Trail' located near Camino Capistrano and Violet Latern Streets. 35 Comment
  SD126574  Euphorbia misera Virginia S. Moran, Karen L. Miner 1989-1-29 Orange city of Newport Beach, Corona de Mar State Beach, Little Corona, ca. 1000 meters east of Poppy Ave., on SSW-facing sandy ocean bluff 24 Comment
  UCR130485  Euphorbia misera R. E. Riefner Jr. 1999-8-21 99- 361 Orange South Coast, Laguna Beach, west of Pacific Coast Hwy., vicinity of Aliso Creek Park and south to West Drive 15 Comment
  UCR240164  Euphorbia misera R. E. Riefner Jr. 2012-12-5 12- 587 Orange South Coast, city of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road 9 Comment
  UCR240174  Euphorbia misera R. E. Riefner Jr. 2012-10-16 12- 518 Orange South Coast, city of Dana Point, Dana Point Harbor, 'Bluff Top Trail' located near Camino Capistrano and Violet Lantern Streets 35 Comment
  UCR267185  Euphorbia misera Fred M. Roberts 2010-3-12 7175 Orange Southeast Coast, DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c. 150 meters SE Interpretive Center 50 Comment
  RSA697594  Euphorbia peplus James Snow 1929-3-28 s.n. Orange SantaAna Gardens Comment
  RSA732073  Euphorbia polycarpa A. C. Sanders, Fred M. Roberts 2008-3-25 34560 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  UCD142717  Euphorbia polycarpa C. L. Hitchcock 1966-3-15 24140 Orange Stearns Lease, 1.5 miles east of Brea. Comment
  JEPS30706  Euthamia occidentalis Peter H. Raven 1961-10-15 16856 Orange just n of U.S. Highway 91 along dyke along road to Yorba Linda 114 Comment
  RSA151085  Euthamia occidentalis Peter H. Raven 1961-10-15 16856 Orange Dyke along road to Yorba Linda just north of US Hwy 91 114 Comment
  SEINET6186107  Euthamia occidentalis R. E. Riefner Jr. 2006-1 06 -666 Orange City of Newport Beach, urban creek draining into San Diego Creek at confluence with Newport Bay; San Diego Creek at SR-73 overpass. USGS QUAD: San Joaquin Gun Club, Tustin 6 Comment
  SD233799  Extriplex californica Hyrum B. Johnson 1973-10-27 Orange Pacific Coast: Bolsa Chica State Beach. Comment
  UCR102013  Festuca myuros var. myuros B. G. Pitzer 1997-3-25 3007 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 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
  SD127873  Festuca perennis Richard Marin 1971-5-11 M 71 83 Orange Corner of MacArthur Blvd. and University Drive, Irvine 0 Comment
  CAS-BOT-BC474723  Ficus microcarpa R. E. Riefner, Jr. 2014-6-14 14 -169 Orange City of Newport Beach, N side of Pacific Coast HIghway at Riverside Ave. 6 Comment
  CAS-BOT-BC502072  Ficus microcarpa R. E. Riefner, Jr. 2015-8-27 15 -360 Orange City of Newport Beach, Corona del Mar, long Marguerite Ave., S of Fourth Ave. 41 Comment
  RSA0088637  Ficus microcarpa R. E. Riefner Jr. 2015-8-27 15 -359 Orange City of Newport Beach, Corona del Mar, on Marguerite Ave. between Fifth Ave. and Fourth Ave. 41 Comment
  CAS-BOT-BC474735  Ficus rubiginosa R. E. Riefner, Jr. 2015-8-27 15 -356 Orange City of Laguna Beach, S side of Beach St. E of Broadway Ave (Hwy 133) 7 Comment
  CDA23581  Ficus rubiginosa Mark A. Elvin, D. G. Kelch 2006-12-9 5314 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  UCR114389  Filago arizonica D. E. Bramlet 2000-4-17 2986 Orange Santa Ana Mtns. Region, 1.9 km west of Blind Canyon and 366 m north of Irvine Park, 31 m SW of the MWD access road 268 Comment
  RSA797822  Filago gallica R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49811 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR106279  Filago gallica B. G. Pitzer, M. Georgiady 1997-4-5 3087 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  CHSC35808  Foeniculum vulgare James Henrickson 1972-10-21 8053 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. Along La Palma Ave., just N. of Santa Ana River. 60 Comment
  SEINET8465144 Image available Foeniculum vulgare Virginia Carlson 1967-10-11 Orange Near eastern boundary of Fullerton Golf Course north of Bastanchury Road. Comment
  SD247721  Frangula californica R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49673 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 456 Comment
  CAS-BOT-BC63071  Frangula californica subsp. californica P. C. Everett 1935-6-17 7137 Orange Santa Ana Mts., Coldwater Canyon, 1/2 mi. above Glen Ivy Resort. 457 Comment
  CAS-BOT-BC63074  Frangula californica subsp. californica Reid Moran 1975-7-18 22598 Orange Common near Yaeger Mine, upper Trabuco Canyon, Santa Ana Mountains. 725 Comment
  CAS-BOT-BC63075  Frangula californica subsp. californica Reid Moran 1975-7-18 22596 Orange Common in the bottom of upper Trabuco Canyon, Santa Ana Mountains. 725 Comment
  PASA433  Frankenia grandifolia var. campestris Frank W. Peirson 1924-8-29 Orange 4 miles south of Santa Ana Comment
  CAS-BOT-BC223806  Frankenia salina L. R. Abrams 1917-6-23 6562 Orange Balboa Comment
  IRVC1370  Frankenia salina A. S. Boughey, Pat Pembrook 1965-6-8 1020 Orange San Juaquin Hills; Los Trancos Cyn; fork at road bottom. Southern Coastal Comment
  LA103547  Frankenia salina Barry A. Prigge; 1983-12-17 5530 Orange Santa Ana Marsh and adjacent lowlands, southeasternmost part of oil field just N of Pacific Coast Highway between remnant Santa Ana River channel and dirt road 1 Comment
  SD82963  Frankenia salina C. Davidson 1970-7-25 1494 Orange Bolsa Chica; Signal oil field. Comment
  UCD99588  Frankenia salina E. Frost 1996-5-11 15 Orange Newport Back Bay, 25 yards in along bike path. 7 Comment
  RSA0039582  Franseria bipinnatifida Elbert Benjamine 1929-5-14 240 Orange Sunset Beach. Comment
  RSA696741  Franseria bipinnatifida Minor Warne 1934-04 s.n. Orange Corona Del Mar Comment
  RSA1068  Fraxinus dipetala J. T. Howell 1927-7-26 482 Orange Claymine Canyon near Sierra Peak. 213 Comment
  RSA12722  Fraxinus dipetala Carl B. Wolf 1934-9-21 6139 Orange Silverado canyon, 1/2 mile below Silverado Motorway, W slope of Santa Ana Mts. 640 Comment
  RSA5342  Fraxinus dipetala B. D. Stark, C. W. Tilforth 1933-1-4 4495 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  RSA295258  Fritillaria biflora H. W. Nixon 1932-04 2437 Orange San Juan Capistrano. Comment
Read comments Feb 20 2012
  UCR142544  Fritillaria biflora D. E. Bramlet 2000-4-12 2978 Orange Peninsular Ranges: Santa Ana Mountains, Tributary to Fremont Canyon, 396m northwest of the Edison Spur road and 1.2 km southeast of the Fremont ridge road; 305m southwest of knoll 1515 113 Comment
  RSA0036644  Fritillaria biflora Robt. Allen 2009-3-29 s.n. Orange Peninsular Ranges; Santa Ana Mountains regions: Near Santiago Canyon. Rancho Sonado (Orange County Department of Education). Entrance is along Santiago Canyon Road, 0.23 miles NW of turnoff to Williams Canyon, 1.55 air miles SE of turnoff to Silverado, Canyon. Wild Bill Trail. 364 Comment
  CAS-BOT-BC422452  Fumaria officinalis Ira L. Wiggins 1966-2-16 20445 -A Orange On N. side of Yorba Linda Blvd., near corner of Associated Road, Fullerton. Comment
  RSA184103  Fumaria parviflora I. L. Wiggins 1965-12-5 20366 Orange 2 miles east of Atwood on north side of Orangethorpe Ave. Comment
  UCR29049  Fumaria parviflora L. C. Erickson 1952-3-13 s.n. Orange Santa Ana Comment
  UCR99855  Fumaria parviflora Scott D. White 1993-3-5 1119 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 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
  RSA539416  Funastrum cynanchoides var. hartwegii Fred M. Roberts, D. Willick 1988-9-16 4133 Orange Peralta Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.1 km N Robbers Peak 177 Comment
  RSA708287  Galium angustifolium Scott D. White, Jennifer H. Jones 2005-3-31 10860 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  RSA636102  Galium angustifolium subsp. angustifolium Valerie L. Soza, LeRoy Gross 1999-6-7 490 a Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA67768  Galium angustifolium subsp. angustifolium G. R. Campbell 1951-5-30 16095 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest 152 Comment
  SD52383  Galium angustifolium subsp. angustifolium Benjamin C. Stone 1953-5-1 328 Orange Coal Creek Canyon of the Santa Ana Mountains 1219 Comment
  POM186338  Galium angustifolium subsp. angustifolium Joseph A. Ewan 1932-7-29 7736 Orange Road around Newport Lagoon. Comment
  POM256705  Galium angustifolium subsp. angustifolium W. Pequegnat 1940-6-15 s.n. Orange Santa Ana Mountains: Modjeska Flat. 1372 Comment
  RSA542397  Galium angustifolium subsp. angustifolium Fred M. Roberts, Dar A. Roberts 1989-3-22 4218 Orange Aliso-Wood Regional Park: Lower Wood Canyon, 3.6km SSE Moulton Peak. 38 Comment
  POM4414  Galium porrigens Philip A. Munz 1918-5-4 2215 Orange Laguna. Comment
  POM47660  Galium porrigens F. W. Peirson 1924-5-31 4665 Orange 5 miles southeast of Laguna Beach Comment
  RSA543971  Galium porrigens Steve D. Boyd, Orlando Mistretta 1991-5-9 6202 A Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA749290  Galium porrigens var. porrigens Fred M. Roberts 1999-4-2 5168 Orange Lomas de Santiago: Loma Ridge, Dripping Springs Spur Rd., 2.3 km W Silverado Sch. and 5.1 km NW Bolero Lookout. 450 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
  RSA700908  Galium siccatum Unspecified s.n. Orange Black Star Canyon Comment
  SBBG128667  Garrya flavescens R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49700 Orange Sierra Peak; n Santa Ana Mtns 900 Comment
  RSA790669  Garrya flavescens subsp. pallida Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49700 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  IRVC24957  Garrya flavescens var. pallida Fred M. Roberts, Gordon A. Marsh 1986-6-6 2931 Orange Santa Ana Mountains; ridge S of Mabey Canyon, just N of Skyline Dr. near Orange County line; 2.7km SE Sierra Peak. Peninsular Ranges 820 Comment
  CAS-BOT-BC282591  Gastridium phleoides F. W. Peirson 1923-9-7 4033 Orange Holy Jim trail to Santiago Peak, Santa Ana Mts. 1143 Comment
  RSA688864  Gastridium phleoides Fred M. Roberts, David E. Bramlet 2003-4-10 5643 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  SEINET179445 Image available Gastridium phleoides L. M. Booth 1932-5-19 1082 Orange Newport Bay Comment
  POM202591  Gastridium phleoides L. M. Booth 1932-5-19 1082 Orange Newport Bay. Comment
  UCR191247  Gastridium ventricosum A. C. Sanders 2008-4-29 35131 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  RSA39481  Gaura parviflora E. L. Paddock 1943-6-8 12730 Orange Whittier Road 1/4 mile west of Puente Street, Brea. Comment
  CDA5233  Gaura sinuata E. Dudley Aug 1939 Orange 0 Comment
  POM18088  Gayophytum diffusum subsp. parviflorum P. A. Munz 1923-9-7 7749 Orange Santiago Peak, Santa Ana Mountains. 1646 Comment
  UC284868  Gayophytum diffusum subsp. parviflorum P. A. Munz 1923-9-7 7749 Orange Santiago Peak Santa Ana Mts. (near summit) 1645 Comment
  SEINET10728263  Gazania David B. Dunn 1971-8-13 Dunn 18118 Orange Cultivated plants vicinity of Laguna Beach. Comment
  SEINET10728264  Gazania David B. Dunn 1971-8-13 Dunn 18119 Orange Cultivated plants vicinity of Laguna Beach. Comment
  RSA542392  Geranium carolinianum Fred M. Roberts 1988-3-15 3845 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark 149 Comment
  RSA732063  Geranium carolinianum A. C. Sanders, Fred M. Roberts 2008-4-8 34754 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  UCD170654  Geranium incanum R. E. Riefner Jr. 2012-12-5 12- 588 Orange South Coast, city of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road. 9 Comment
  UC2014872  Geranium incanum var. multifidum R. E. Riefner Jr. 2011-7-1 11 -78 Orange City of Laguna Beach, South Crescent Bay, vicinity of Circle Drive and Island Way. Comment
  UCR235520  Geranium incanum var. multifidum R. E. Riefner Jr. 2007-4-28 07- 189 Orange South Coast, city of Newport Beach Newport Bay, North Star Beach, vicinity of Morning Star Lane 2 Comment
  HSC16994  Gilia angelensis J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  SEINET5321189  Gilia angelensis A. G. Vestal, W. P. Vestal 1955-3-24 3460 Orange El Toro; About 5 miles east of El Toro Comment
  RSA698350  Gilia multicaulis R. H. McArthur s.n. Orange Gypsum Canyon. Comment
  RSA698352  Gilia multicaulis Dorothy Sammis s.n. Orange Santa Ana Canyon. Comment
  RSA708369  Githopsis diffusa subsp. candida Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6243 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 Comment
  RSA39115  Gladiolus italicus E. L. Paddock 1948-4-19 12289 Orange Walnut groves in Santa Ana (north side of Manchester midway between Flower and Main Sts.; and on east 17th St. one-fourth mile east of Grand. 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
  RSA91740  Gnaphalium beneolens F. W. Peirson 1923-9-7 4042 Orange Trail to Santiago Peak, Santa Ana Mts 991 Comment
  IRVC9383  Gnaphalium bicolor B. T. Gittins 1966-3-30 1113 Orange Upper Newport Bay; slope base near salt ponds. Newport Beach Comment
  IRVC454  Gnaphalium californicum D. Orr 1965-3-27 Orange Trabuco Rd. 3mi E El Toro Marine Base. El Toro Comment
  RSA736570  Gnaphalium californicum Keith E. Hoffmaster 1935-4-14 606 Orange Live Oak can. Comment
  RSA688869  Gnaphalium californicum Fred M. Roberts 2003-5-1 5671 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.49km S Gato Gate and just west of Cristianitos Rd. (San Clemente) 84 Comment
  POM196473  Gnaphalium chilense J. T. Howell 1927-10-29 3183 Orange Bryant Ranch near Long Beach. 15 Comment
  IRVC15124  Gnaphalium microcephalum var. microcephalum A. S. Boughey 1968-4-16 225 Orange Santiago Canyon/Lower Modjeska Cyn, Fleming Property. Santa Ana Mountains Comment
  POM201938  Gnaphalium palustre L. M. Booth 1932-5-24 1086 Orange Newport Lagoon. Comment
  CDA6068  Gnaphalium stramineum Walden 1951-5-24 Orange Dr. Beebe, southwest corner Gilbert & Orange, Anaheim. 0 Comment
  IRVC24748  Gnaphalium stramineum Fred M. Roberts 1986-4-29 2818 Orange Turtle Rock, above corner of Ridgerout Dr. and Turtle Rock Dr., 1.1km SE French Hill, Irvine 141 Comment
  RSA698231  Godetia bottae G. Gentges 1932-5-8 s.n. Orange Silverado Canyon Wash. Comment
  RSA698234  Godetia epilobioides R. H. McArthur 1934-4-14 s.n. Orange Laguna Canyon. Hillside. Comment
  IRVC26733  Grindelia Mark A. Elvin 2004-6-18 3522 Orange UCI Arboretum Southern Coastal 15 Comment
  UCR52299  Grindelia camporum B. G. Pitzer, D. C. Hawks 1986-12-17 0382 A Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, on Santiago Cyn Rd., c. 1.0 mi SW of [Irvine Lake] Santiago Reservoir 305 Comment
  IRVC745  Grindelia camporum var. bracteosa M. Savage 1965-4-2 Orange Corona del Mar, across from Irvine Terrace. Newport Beach Comment
  RSA17586  Grindelia camporum var. bracteosa C. B. Wolf 1936-7-8 8101 Orange Coast Hwy, Western end of Newport Bay. 9 Comment
  SEINET179462  Grindelia camporum var. bracteosa L. M. Booth 1932-5-24 1092 Orange Newport Bay Comment
  CAS-BOT-BC305205  Grindelia hirsutula Carl B. Wolf 1936-7-8 8101 Orange Coast Highway, Western end of Newport Bay 9 Comment
  CAS-BOT-BC305210  Grindelia hirsutula L. R. Abrams 1917-6-23 6566 Orange Balboa Comment
  JEPS41904  Grindelia hirsutula L. M. Booth 1932-5-24 1092 Orange Newport Bay Comment
  UC536899  Grindelia hirsutula Lawrence M. Booth 1932-5-24 1092 Orange Newport Bay Comment
  UC729956  Grindelia hirsutula Carl B. Wolf 1932-7-2 3810 Orange Valencia Ave opposite Olinda Pilgrim Church; Olinda 152 Comment
  IRVC8688  Gutierrezia californica Charles W. Sexton 1965-3-27 Orange Ortega Highway out of San Juan Capistrano Southern Coastal Comment
  SEINET2052347 Image available Gutierrezia californica B. Pitzer, D. Hawks 1986-10-21 346 Orange Lomas de Santiago, ca. 10.0 miles E. of Santa Ana, in hills N and E of South Coast Gun Club on Jeffrey Rd. in Hicks Canyon. 182 Comment
  RSA627787  Hainardia cylindrica Scott D. White 1998-6-26 6785 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  UCR103284  Haplopappus venetus B. G. Pitzer, T. Tennant 1997-11-8 3377 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. 30 Comment
  RSA0066594  Harpagonella palmeri Fred M. Roberts, D. E. Bramlet 2003-3-7 5563 Orange Donna O Neill Land Conservancy: West slopes of Christianitos Canyon, Middle Ridge Trail, 0.1km NW Gato Gate. 123 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
  RSA0066588  Harpagonella palmeri Fred M. Roberts, Carol A. Roberts, Dave Bontrager 1990-4-28 4587 Orange Rancho Mission Viejo: Christianitos Canyon, 4.0 km E Playa Survey Marker. 174 Comment
  RSA0066592  Harpagonella palmeri R. A. Hamilton 2001-5-17 s.n. Orange Crystal Cove State Park, near Pelican Point. The site is located 305m south of Pacific Coast Highway and 671m east of Cameo Shores Drive. 30 Comment
  RSA585059  Hedypnois cretica D. Atwood 1993-3-28 17716 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. Sea level. 0 Comment
  RSA732000  Hedypnois cretica A. C. Sanders, Fred M. Roberts 2008-4-22 35059 Orange Penisular Range; Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon. c. 3.5 mi. WSW of Silverado. 493 Comment
  SD42290  Hedypnois cretica C. B. Wolf 1938-5-2 9406 Orange Fullerton, Francis Street, 1200 block, east side in vacant lot 60 Comment
  LA204752  Helianthemum scoparium W. Pequegnat; 1936-9-8 102 Orange Santa Ana Mountains, Ortega Rd Comment
  RSA0013858  Helianthemum scoparium Fred M. Roberts 2012-5-10 7565 Orange San Joaquin Hills: Buck Gully, S Fork, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive. 183 Comment
  RSA0027782  Helianthemum scoparium var. aldersonii R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49679 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] 457 Comment
  RSA647889  Helianthus annuus Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 73 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  UC537024  Helianthus annuus Lawrence M. Booth 1932-6-29 1230 Orange Newport Bay Comment
  UCR228887  Helianthus annuus Dick Newell, Peter Wetzel, Cassie Backer 2011-7-5 201 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 242 Comment
  CAS-BOT-BC305442  Helianthus annuus E. L. Paddock 1943-5-29 12745 Orange South Pacific Electric Railway, 1/4 mile northwest of Brea-Olinda crossing Comment
  POM359985  Helianthus annuus subsp. lenticularis Josephine Derigo 1941-7-25 s.n. Orange Canyon road to Laguna Beach, California. open feilds and road side. Low lands Comment
  CAS-BOT-BC305655  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, n. of El Toro, ca. 11 mi. s.e. of Tustin Comment
  RSA573299  Helianthus gracilentus Steve Boyd, T. S. Ross 1994-9-14 8356 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucus Canyon Trail crossing near old mining camp. Comment
  RSA7440  Helianthus gracilentus C. B. Wolf 1933-8-24 5388 Orange Summit of Santiago Peak, Santa Ana Mountains. 1707 Comment
  SD140191  Helianthus gracilentus B. Pitzer 1992-5-27 1963 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 miles (airline) west of El Cariso Campground. 762 Comment
  RSA695823  Heliotropium curassavicum Kenneth Beard s.n. Orange Santa Ana riverbank Comment
  RSA5855  Heliotropium curassavicum var. oculatum C. B. Wolf 1932-6-28 3788 Orange Bryant Ranch, near fence., 100 ft. south of NW corner of NW 1/4 of S.E. 1/4 of sect 27. 9 Comment
  UCSB48227  Helminthotheca echioides Roberts, Jr., Fred 1981-7-8 Orange Rancho Mission Viejo; Calif. Rte. 74, 5.2 km. ENE San Juan Capistrano by road 100 Comment
  UCD132945  Helminthotheca echioides P. B. Kennedy 1924-2-13 s.n. Orange Huntington Beach District. Comment
  RSA254941  Hemizonia australis C. W. Tilforth 1975-9-6 1047 Orange Upper Bay, Newport Beach: North-east shoreline. Comment
  RSA30668  Hemizonia australis L. C. Wheeler 1932-6-25 849 Orange 5 miles west of Santa Ana. 22 Comment
  UCR1475  Hemizonia fasciculata B. L. Estes 1960-7-23 s.n. Orange South Coastal Plains Region, San Clemente, 5 ft. from pavement at corner of So. Calle Seville and West Ave. Victoria 30 Comment
  UCR239888  Hemizonia fasciculata O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  RSA684401  Hemizonia paniculata Scott D. White, Brian Leatherman 2003-10-30 9847 Orange Foothills; Oso Parkway crossing over Chiquita Canyon. 198 Comment
  UCR248971  Hemizonia parryi subsp. australis Jeremiah George, Audrey J. George 2013-11-21 s.n. Orange Los Alamitos, adjacent to Los Alamitos Racetrack, north end of Katella Ave. at junction with Enterprise Dr. 9 Comment
Read comments May 15 2019
  RSA562744  Hesperocnide tenella Steve D. Boyd, Tim S. Ross 1992-5-19 7440 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  CAS-BOT-BC143752  Heteromeles arbutifolia P. Everett; E. R. Johnson 1937-11-30 9380 Orange Santa Ana Mts., Bold Meadow at head of Claymine Canyon on slopes of Sierra Peak 762 Comment
  SEINET10685372  Heteromeles arbutifolia Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 3 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  RSA0072399  Heteromeles arbutifolia Carl B. Wolf, B. D. Stark 1932-12-19 4430 -A Orange Santa Ana Mts: 1/2 mile from Skyline Drive on firebreak road to Sierra Peak. 762 Comment
  UCSB17165  Heteromeles arbutifolia Gerhart, Janet 1963-2-22 Orange 1/2 mile south of Trabuco Canyon Road junction on Gubernadora Canyon Road, 11.4 miles east of U.S. Highway 101 at El Toro Marine Base 304 Comment
  RSA0075820  Heterotheca grandiflora Valerie L. Soza, Kim Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1120 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  SEINET2052420 Image available Heterotheca grandiflora Cesareo Perez 1971-5-12 Orange Huntington State Beach, Pacific Coast Highway at Brookhurst, Huntington Beach. Comment
  UCD150986  Heterotheca grandiflora D. S. Park 2010-4-25 32 -1 Orange Whiting Ranch Wilderness Park, along trail. 226 Comment
  UCSB44177  Heterotheca grandiflora Henneman, J. 1977-5-21 Orange Newport Back Bay 6 Comment
  RSA0074432  Heterotheca grandiflora James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. Station #1. Comment
  POM47593  Heterotheca sessiliflora subsp. echioides I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  RSA721136  Hieracium albiflorum Anonymous s.n. Orange Santa Ana Comment
  RSA743501  Hirschfeldia incana Fred M. Roberts 2008-7-10 7077 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 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
  UCD169748  Hoita macrostachya R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49564 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along San Juan Creek. 1859 Comment
  RSA548862  Holodiscus boursieri Fred M. Roberts, Carol A. Roberts 1988-6-10 4094 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit 1542 Comment
  RSA172272  Holodiscus discolor Robert F. Thorne 1963-7-26 32826 Orange Trabuco District, Santa Ana Mts., Cleveland National Forest. 1159 Comment
  UC1127989  Holodiscus discolor A. Lewis 1934-5-1 423 Orange Cleveland National Forest, Trabuco Canyon Trabuco Canyon; Cleveland National Forest, Trabuco Canyon 1280 Comment
  CAS-BOT-BC150006  Holodiscus discolor var. discolor P. C. Everett 1935-6-18 7221 Orange Santa Ana Mts., Summit of Santiago Pk. 1731 Comment
  RSA608538  Hordeum depressum D. E. Bramlet 1996-4-20 2458 A Orange Marsh adj. to Upper Newprot Bay, approx. 122m southeast of the end of University Dr. and 15.2m west of the Delhi channel., UTM 37 23 830mN, X 4 18 180m E 1 Comment
  UCSB52866  Hordeum depressum Roberts, Fred 1983-4-24 Orange Dana Point Headlands; south of Pacific Coast Hwy, 0.4km W Harbor; 0.7km SSW Richard Henry Dana Sch. 79 Comment
  RSA0042733  Hordeum glaucum David Barrios 1991-5-1 10 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  RSA642530  Hordeum intercedens D. E. Bramlet 1998-5-19 2621 Orange San Juan Hills. 4,400 ft. west of La Pata Ave. and 10,000 ft. north of Prima Deshecha Canada. On a ridgeline 500 ft. east of a small canyon., UTM 11S 04 41 529mE X 37 06 455mN. 91 Comment
  RSA642532  Hordeum intercedens D. E. Bramlet 1999-6-11 2808 Orange On slope 76m east of Cristianitos Creek and 488m northeast of the intersection of Avenida Pico and Cristianitos Road., UTM 11S 04 47 340mE X 37 02 080mN. 79 Comment
  UCR150373  Hordeum intercedens D. E. Bramlet 1998-5-20 2622 Orange Coastal Plains & Basins/Coastal Plains region, San Juan Hills: 488 m west of La Pata Ave. and 1.22 km N of Prima Deshecha Canada. A blue-line drainage 457 m east of the old ridgeline road 149 Comment
  UCR158227  Hordeum intercedens Adrian Wolf, David Charlton 1998-4-22 128 Orange South Coast, San Joaquin Hills, Shady Canyon east of Sand Canyon Reservoir, 1 mile [ESE] of French Hill, south of gravel road toward Sand Cyn. Rd 79 Comment
  UCR207598  Hordeum marinum subsp. gussoneanum O. F. Clarke 2004-5-19 s.n. Orange South Coast, Fairview Park, Costa Mesa 24 Comment
  RSA542550  Hordeum murinum subsp. leporinum Fred M. Roberts 1988-3-4 3810 Orange Anaheim, along Atchison Topeka RR parallel to Vine St., south of Broadway St., UTM 3743900m N, 416300m E 50 Comment
  UC582823  Horkelia cuneata subsp. puberula Philip A. Munz 1936-4-20 14606 Orange Laguna Beach Mt. Olympus 152 Comment
  UCR203977  Horkelia cuneata subsp. puberula D. E. Bramlet 2008-4-28 4250 Orange East fork of Upper Weir Canyon on the south side of the existing access road, 1.6 km east of the main canyon and 183 m west of the upper boundary of Gypsum Canyon 406 Comment
  RSA526  Hydrocotyle umbellata J. T. Howell 1927-8-13 624 Orange Santa Ana River Bottom 152 Comment
  UC1543186  Hypochaeris glabra Donald G. Nelson 1935-4-6 234 Orange e San Juan Capistrano; Cleveland National Forest Comment
  RSA678498  Hypochaeris radicata Fred M. Roberts, Robert Allen, Carol Roberts 2003-5-11 5844 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  UCR240185  Ipomoea cairica R. E. Riefner Jr. 2012-11-27 12- 563 Orange South Coast, city of laguna Beach, South Crescent Beach, Circle Way near Cliff Drive 3 Comment
  SD248402  Ipomoea purpurea R. E. Riefner Jr. 2012-9-7 12 504 Orange City of Dana Point, Dana Point Harbor Drive, vicinity of Island Way. 18 Comment
  UCR141342  Iris pseudacorus Robert DeRuff 2000-1 524 Orange Southern Coast, Newport Beach, Newport Back Bay, 23rd Street Creek on W side of the bay 12 Comment
  CAS-BOT-BC311675  Isocoma menziesii var. sedoides Helen D. Geis 1902-1-1 545 Orange Laguna Beach Comment
  CAS-BOT-BC311657  Isocoma menziesii var. vernonioides Ira L. Wiggins 1965-10-27 20305 Orange Along Brea Canyon Road just SW of Los Angeles County line Comment
  OBI41038  Isocoma menziesii var. vernonioides Melissa Thorme 1983-11-23 18 Orange Southern most housing tract in Corona Del Mar Comment
  OBI47601  Isocoma menziesii var. vernonioides B. Pitzer & L. F. LaPre, L. F. LaPre 1986-10-20 s.n. Orange Summit of Hicks cyn on a private road (continuation of Jeffrey rd) ca. 2.4 mi above the gun club. (Near 117d 43'W, 33d 44'N 274 Comment
  POM294112  Isocoma menziesii var. vernonioides Lyman Benson 1946-7-8 12105 Orange Corona del Mar. 15 Comment
  RSA5815  Isocoma menziesii var. vernonioides C. B. Wolf 1932-6-28 3807 Orange Edge of field on Bryant Ave., 300 ft. W. of N.E. corner of N.W. 1/4 of S.E. 1/4 sect27 T4S RNW 9 Comment
  RSA703094  Isocoma menziesii var. vernonioides Fred M. Roberts, Art Davenport 2003-9-11 6002 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
  RSA91276  Isocoma menziesii var. vernonioides F. W. Peirson 1919-11-8 1254 Orange South of Arch Beach, near Laguna Beach Comment
  RSA94  Isolepis cernua J. T. Howell 1927-7-6 278 Orange Santa Ana River bottom, Rancho Santa Ana 152 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
  CLARK-A1528-1975  Jaumea carnosa John C. Roos 1949-10-1 4682 Orange Doheney Beach Comment
  POM201735  Jaumea carnosa L. M. Booth 1932-6-9 1183 Orange Newport Bay. Comment
  IRVC24542  Jaumea carnosa John Johnson 1976-8-10 Orange Newport Back Bay; coastal salt marsh. Newport Beach Comment
  RSA539363  Jepsonia parryi Fred M. Roberts Jr., R. L. Allen 1988-11-30 4165 Orange Aliso-Woods Canyon Regional Park: Niguel Hill, 0.8 km NE Aliso Peak, in Seaview Park. 277 Comment
  CAS-BOT-BC426240  Jepsonia parryi F. W. Peirson 1919-11-8 1941 Orange Sea bluffs south of Arch Beach, near Laguna Beach Comment
  POM9770  Jepsonia parryi Gordon Nicholsen 1921-01 s.n. Orange Santa Ana Canyon. Comment
Read comments Aug 8 2010
  RSA594900  Jepsonia parryi Fred M. Roberts Jr. 1991-11-17 4824 Orange Lomas de Santiago: Foothill Ranch, north of El Toro Road, ca. 5.0km SSE Bolero Lookout. 274 Comment
  UCR16466  Juglans californica J. N. Bullock 1970-4-11 s.n. Orange a north side canyon of Tonner Canyon 168 Comment
  UCR229282  Juglans californica R. E. Riefner Jr. 2011-8-25 11- 113 Orange Trabuco Canyon, Trabuco Canyon Road c. 1 mi northwest of O'Neill Regional Park 319 Comment
  RSA0011059  Juglans californica I. L. Wiggins 1966-5-11 20660 Orange Carbon Canyon about 1 mile above its mouth. Comment
  UC1618043  Juglans californica var. californica Donald G. Nelson 1935-3-16 168 Orange hills n Fullerton 60 Comment
  CAS-BOT-BC334501  Juglans hindsii R. E. Riefner, Jr. 2010-9-8 10 -121 Orange City of Laguna Beach, Laguna Canyon, ca 0.15 mi S of El Toro Rd. on E side of Laguna Canyon Rd. 75 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
  RSA231137  Juncus acutus subsp. leopoldii Michael Ward 1970-8-22 V- 6 Orange 4 miles South of Seal Beach, NE of PCH amd Bolsa Chica State Park at Bolsa Chica Salt Marsh; Sea level 0 Comment
  UC1280019  Juncus acutus subsp. leopoldii Peter H. Raven 1957-9-28 11401 Orange just n Huntington Beach Comment
  UCR4761  Juncus acutus subsp. leopoldii Barbara T. Gittins 1966-5-29 1369 Orange Upper Newport Bay Comment
  RSA703734  Juncus arcticus Fred M. Roberts, David E. Bramlet 2004-11-5 6123 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Cristianitos Cyn., along creek, 0.73km N Sycamore Gate and 0.10 km W Cristianitos Road. 122 Comment
  POM7126  Juncus balticus subsp. ater Phillip A. Munz, L. T. Street, G. Williams 1919-5-3 2654 Orange Santa Ana River Canyon. Comment
  UCR97575  Juncus bufonius B. G. Pitzer 1997-4-15 3139 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
  RSA788923  Juncus dubius Fred M. Roberts 1999-6-23 5245 Orange Peninsular Range, Santa Ana Mtns. Region: Lomas de Santiago: tributary to Santiago Creek, ridge between Limestone Cyn, and Santiago Creek wash across from Pancho Canyon, 1.6 km ENE Bolero Spr. and 1.6 km NNW Bolero Lookout. 396 Comment
  UCSB47985  Juncus macrophyllus Roberts, Fred 1980-6-25 Orange Santa Ana Mtns; San Juan Canyon below Calif. Rte. 74; 2.4 km ENE San Juan Guard Station; 0.3 km WSW BM 1100 290 Comment
  SEINET10755887 Image available Juncus nodosus Coe F. Austin Austin s.n. Orange Comment
  SEINET6174580  Juncus phaeocephalus E. K. Balls 1949-5-9 13467 Orange Botanic Garden, Santa Ana River Canyon 198 Comment
  RSA603360  Juncus rugulosus Scott D. White 1997-6-12 5317 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  RSA699683  Juncus rugulosus Keith E. Hoffmaster 1935-4-14 s.n. Orange Trabuco creek., 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. Comment
  RSA788802  Juncus textilis Robert F. Thorne 1977-11-21 49984 -a Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  RSA21064  Juncus xiphioides Ramon Valverde 1938-8-4 9440 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  UCR193843  Juncus xiphioides A. C. Sanders, Fred M. Roberts 2008-7-16 35857 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  POM21178  Juncus xiphioides Helen D. Gels 1902-11 s.n. Orange Santa Ana [River?] Comment
  RSA17462  Juncus xiphioides Percy C. Everett 1936-9-19 8272 Orange Santa Ana Mountains, Silverado Canyon. 0.7 mile E of Shadybrook Resort. 701 Comment
  SEINET10932779  Juniperus chinensis Carlyle Wilson Bennett, David B. Dunn; Chester T. Dziekanowski 1976-7-21 Bennett 438 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 150 Comment
  RSA424818  Keckiella antirrhinoides Albert J. Perkins 1916-6-15 s.n. Orange Santa Ana. Comment
  UCR50731  Keckiella antirrhinoides Steve Hampson 1988-5-12 s.n Orange Santa Ana Mtns, Harding Canyon above Modjeska Reservoir. Streamside 488 Comment
  NY786525  Keckiella antirrhinoides var. antirrhinoides D. C. Michener 1980-6-5 3668 Orange Santa Ana Mountains. San Juan river valley, on terrace near abandoned mine(s). Comment
  SD245484  Keckiella antirrhinoides var. antirrhinoides Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49601 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  RSA293307  Keckiella cordifolia D. C. Michener 1980-6-21 3683 Orange Starr Audubon Sanctuary. Riparian woodland margin in Crow Creek ca. 1.5 mi. north of confluence with Bell Canyon. 250 Comment
  SEINET7067530  Keckiella cordifolia A. G. Vestal 1947-6-12 s.n. Orange Santiago Creek Valley 0.4 miles below Silverado Canyon fork. Coordinate datum: NAD27. UTM Zone 11, 438769mE, 3733678mN. Comment
  UC1294011  Keckiella cordifolia E. K. Balls 1958-6-27 23283 Orange 5 mi se Silverado (Gate); Santa Ana Mts., Silverado Canyon 1097 Comment
  UCR227628  Keckiella ternata subsp. ternata Robt. L. Allen 2003-6-22 12296 Orange Peninsular Range; Santa Ana Mountains, northeastern flank of Santiago Peak, along North Main Divide Road 1505 Comment
  RSA761793  Keckiella ternata subsp. ternata Robert Allen 2003-6-22 12295 Orange Northeastern flank of Santiago Peak, along North Main Divide Road. 1506 Comment
  RSA703685  Kickxia elatine Fred M. Roberts, David E. Bramlet 2004-7-30 6093 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., parking area at Gato Gate and 0.06 km W Cristianitos Road. 96 Comment
  RSA0013575  Kochia scoparia Maile Tanaka, Crystal Dickson 2009-8-11 s.n. Orange Huntington Beach: to SW of intersection of Magnolia and Hamilton. 3 Comment
  RSA708524  Koeleria macrantha Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6242 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 Comment
  CAS-BOT-BC340503  Lactuca serriola Ira L. Wiggins 1965-10-24 20288 Orange At corner of Yorba Linda and State College Blvd., Fullerton Comment
  RSA703140  Lactuca serriola Fred M. Roberts, Art Davenport 2003-9-11 6016 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
  CAS-BOT-BC340501  Lactuca serriola John Thomas Howell 1927-7-27 2855 Orange Hills on n. side of Santa Ana Canon [Canyon] 152 Comment
  SD240851  Laennecia coulteri T. B. Salvato 2010-10-27 5139 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St. overlooking Dana Point Harbor. 67 Comment
  RSA761938  Lagophylla ramosissima subsp. ramosissima Robt Allen, Linnell Allen, Charles Allen 2005-10-9 12530 Orange Los Pinos Potrero, opposite entrance to Falcon Group Camp. 1011 Comment
  CAS-BOT-BC272426  Lamarckia aurea Ira L. Wiggins 1966-3-5 20516 Orange In fallow field about 1/2 mi. W. of El Toro Post Office, along Highway S-18 Comment
  RSA687519  Lamarckia aurea Fred M. Roberts, David E. Bramlet 2003-4-10 5650 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, ridge between Cristianitos Cyn. and Segunda Deshecha Canada, 1.54km W Gato Gate and 1.59km NW Edison substation. 262 Comment
  UCR99880  Lamarckia aurea Scott D. White 1993-3-5 1130 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  SEINET2065733 Image available Lamium amplexicaule J. Harry Lehr 1973-4-21 909 Orange East Santa Anna St. W of State College Blvd, Anaheim 16 Comment
  UCR166703  Lantana camara Scott D. White, Jennifer H. Jones 2005-3-31 10854 Orange South Coast, City of Laguna Beach. 549 Nyes Place. Proposed home site on c. 0.5 acre. 91 Comment
  UCSB52935  Lastarriaea coriacea Roberts, Fred 1984-5-1 Orange Wagon Wheel Regional Park; Wagon Wheel Canyon; 3.1km NE Median Rancho Survey Mark; 1.2km NNW BM 422 165 Comment
  CAS-BOT-BC338903  Lasthenia californica C. B. Wolf 1931-3-6 1847 Orange 1 mile above Trabuco Oaks, Trabuco Canyon, west slope of the Santa Ana Mts. 518 Comment
  CAS-BOT-BC338906  Lasthenia californica Baker 1904-4-1 4088 Orange Anaheim 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
  CAS-BOT-BC329172  Lasthenia glabrata subsp. coulteri Carl B. Wolf 1932-3-8 2691 Orange Sunset Beach, near southern limits of city 1 Comment
  UCR240171  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2012-5-5 12- 85 Orange South Coast, city of San Clement, Antonio Parkway, c. 0.25 mi north of Hwy 74 88 Comment
Read comments Apr 7 2021
  POM48548  Lasthenia gracilis F. M. Reed 1925-5-14 4968 Orange Aliso Canon. Comment
Read comments May 1 2011
  RSA2082  Lasthenia gracilis C. B. Wolf 1931-3-6 1847 Orange Trabuco Canyon, 1 mile above Trabuco Oaks, W slope of Santa Ana Mts 518 Comment
  RSA3186  Lasthenia gracilis C. B. Wolf 1932-3-8 2677 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  UC2061417  Lasthenia gracilis Rachael L. Olliff Yang with Alice J. Olliff 2017-3-30 13 Orange UC Irvine Ecological Reserve, about 100 m West of Los Trancos Drive, along the trail. Comment
  RSA659554  Lathyrus vestitus P. Shirokawa 1998-5-7 20 Orange Cleveland National Forest- Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road 960 Comment
  UCR209357  Lathyrus vestitus subsp. vestitus Fred M. Roberts 2008-4-8 6850 Orange Lomas de Santiago, Loma Ridge, Upper Dripping Springs Cnyn, 1.0 km northeast of Bee Peak, Irvine Ranch Conservancy 458 Comment
  UCR97637  Lathyrus vestitus var. vestitus George K. Helmkamp, E. A. Helmkamp 1997-4-24 1649 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 1.6 mi. SE of Ortega Hwy (Calif. Hwy 74) on Rd. 7-S14 549 Comment
  UCSB47580  Lathyrus vestitus var. vestitus Roberts, Fred 1980-4-3 Orange San Juan Canyon, Hwy. 74, 0.4 km. NNE Lower San Juan Picnic Ground, Santa Ana Mtns. 420 Comment
  SBBG12352  Lathyrus vestitus var. vestitus E. R. Blakley 1957-4-26 2070 Orange State Hwy 140, 5 mi E of Mission San Juan Capistrano 121 Comment
  UCR141338  Laurus nobilis Robert DeRuff 1990-3-31 391 Orange Southern Coast, Newport Beach, Newport Back Bay, East Bluff 9 Comment
  RSA782062  Lavatera cretica Mark A. Elvin 2003-2-23 2308 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  IRVC22071  Layia platyglossa Fred M. Roberts, D. A. Roberts 1983-3-22 934 Orange San Juan Canyon, above Hwy 74, 2.7km ENE San Juan Guard Sta.; 3.6km SSW Sugar Loaf Pk., Santa Ana Mountains 407 Comment
  POM6370  Layia platyglossa subsp. campestris P. A. Munz, L. T. Street, Williams 1919-5-3 2646 Orange Santa Ana River Canyon. 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
  UCR196897  Leonurus sibiricus O. F. Clarke, A. C. Sanders 2008-2-19 s.n. Orange South Coast, Fullerton; weeds at Calif. St. Univ. Fullerton Arboretum 80 Comment
  IRVC16187  Lepechinia cardiophylla Gordon A. Marsh, Karlin G. Marsh 1978-5-13 s.n. Orange Santa Ana Mtns: Claymine Canyon; road to Coal Canyon Peninsular Ranges 433 Comment
  RSA1076  Lepechinia cardiophylla J. T. Howell 1927-6-26 225 Orange Claymine Canyon, near Sierra Peak 610 Comment
  RSA171015  Lepechinia cardiophylla Robert F. Thorne 1963-7-26 32853 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Cleveland National Forest. 732 Comment
  RSA443836  Lepechinia cardiophylla Gordon Marsh, Karlin G. Marsh 1978-5-13 s.n. Orange Claymine Canyon Road; above Claymine Canyon center on west ridge and near road. Comment
  UCR125978  Lepechinia cardiophylla Fred M. Roberts, D. E. Bramlet 2002-6-6 5524 Orange Santa Ana Mtns., Main Divide Truck Trail, Upper Indian Canyon, 1.7 km W Trabuco Peak 1268 Comment
  RSA697418  Lepidium didymum J. R. Bruff s.n. Orange Fifth St. Bridge. Santa Ana. Comment
  UCR237845  Lepidium lasiocarpum Mark A. Elvin 2003-2-2 2274 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  CDA23129  Lepidium latifolium Mary H. White, Mark A. Elvin 2006-9-23 923064 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
  RSA753033  Lepidium latifolium A. C. Sanders, Fred M. Roberts 2008-9-18 36090 Orange Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  CAS-BOT-BC12522  Lepidium nitidum Carl B. Wolf 1932-3-8 2683 Orange 0.5 mile north of Corona Del Mar borders of Newport Bay. 7 Comment
  RSA429969  Lepidium nitidum Albert J. Perkins 1913-3-6 s.n. Orange Near San Juan Hot Springs, Orange County Comment
  RSA184170  Lepidium nitidum I. L. Wiggins 1966-3-5 20511 Orange 1/2 mile W of El Toro along Hwy 18 Comment
  RSA697453  Lepidium nitidum Pomeroy 1929-2-23 79 Orange Near El Toro. Comment
  JEPS53733  Lepidium perfoliatum R. H. Holland 1913-5-15 Orange Orange Comment
  UC1543107  Lepidium virginicum Donald G. Nelson 1935-3-23 180 Orange just s E. Orange Thorpe Ave. (e Fullerton); Fullerton Comment
  UCR4054  Lepidium virginicum Carole Sims 1965-3-25 s.n. Orange Santa Ana River Canyon, hillside at 24000 Santa Ana Canyon Road (= State Hwy 91), 150 yards north of hwy; also called Gypsum Canyon. West side of gravel company's trucking road. 221 Comment
  CAS-BOT-BC60084  Lepidium virginicum var. menziesii Helen D. Geis 1902-1-1 531 Orange Santiago Creek. Comment
  CAS-BOT-BC60085  Lepidium virginicum var. menziesii Helen D. Geis 1902-1-1 531 Orange Santiago Creek. Comment
  POM202605  Lepidium virginicum var. pubescens L. M. Booth 1932-5-24 24 Orange West Side of Newport Lagoon. Comment
  OBI77796  Lepidospartum squamatum J. & B. Sample, B. Sample 1991-8-12 5591 Orange E of San Juan Capistrano on hwy 74 610 Comment
  RSA734396  Lepidospartum squamatum Keith E. Hoffmaster 1935-4-14 598 Orange Trabuco creek., 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. Comment
  UCSB48209  Lepidospartum squamatum Roberts, Jr., Fred 1981-7-8 Orange Rancho Mission Viejo; Calif. Rte. 74, 10 km. by road ENE San Juan Capistrano 101 Comment
  CAS-BOT-BC274367  Leptochloa Ira L. Wiggins 1965-11-5 20336 Orange Along west side of village of Atwood Comment
  RSA703196  Leptochloa fusca subsp. uninervia R. E. Riefner Jr. 2004-8-8 4 -373 Orange City of Anaheim, Santa Ana River bottom, E of 57 Freeway between Orangewood Street and Chapman Avenue. 41 Comment
  CDA1048  Leptochloa uninervia D. G. Kelch 2006-12-9 6 .552 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  CLARK-A1528-4716  Leptochloa uninervia John C. Roos 1936-10-9 2509 Orange Olive 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
  RSA574  Leptosiphon androsaceus J. T. Howell 1928-4-7 905 Orange Botany Garden, Rancho Santa Ana. [original location] Comment
  SD87568  Leptosiphon floribundus F. W. Peirson 1925-4-10 5741 Orange Silverado Canyon 609 Comment
  SD28081  Leptosiphon liniflorus Carl B. Wolf 1932-5-19 3637 Orange Rancho Santa Ana Botanic Garden, west of the tennis court. 198 Comment
  CAS-BOT-BC283709  Leymus condensatus L. R. Abrams 1901-6-1 s.n. Orange San Joaquin Hills Comment
  RSA734905  Leymus condensatus A. C. Sanders 2008-5-28 35433 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  RSA108341  Leymus triticoides Frank W. Gould 1943-4-12 2101 Orange About 7 miles northeast of Anaheim, on sand railroad siding. Comment
  CAS-BOT-BC130582  Lilium humboldtii John Thomas Howell 1927-7-26 2841 Orange SE. fork of Claymine [Canon] Canyon, n. Santa Ana Mts. 304 Comment
Read comments Mar 27 2018
  UCR231348  Lilium humboldtii A. C. Sanders, Kent Beaman 2011-9-27 39901 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347 deg. ) of Santiago Peak 903 Comment
  RSA125  Lilium humboldtii subsp. ocellatum J. T. Howell 1927-7-26 479 Orange Claymine Canon near Sierra Peak. 244 Comment
Read comments Apr 8 2018
  UC1789093  Limonium R. E. Riefner Jr. 2005-9-16 05 -667 Orange Upper Newport Bay, E of Bayside Dr. at Big Canyon Creek. 6 Comment
Read comments Jan 7 2016
  RSA0045186  Limonium commune var. californicum Keith E. Hoffmaster 1934-10-7 237 Orange Near Santa Ana. Comment
  RSA723489  Limonium duriusculum R. E. Riefner 2006-11-12 6 -67 Orange City of Newport Beach, San Diego Creek near confluence with Newport Bay near SR73 overpass. 6 Comment
  UCR200663  Limonium ramosissimum Daniel Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel, Dana Point Highlands, Crown Valley Parkway at Pacific Island Drive 70 Comment
  IRVC29782  Limonium sinuatum Mark A. Elvin, Dean Kelch 2006-12-9 5294 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  RSA783375  Linanthus J. D. Olmsted 1959-4-17 399 Orange Rattlesnake Rock north of Hidden Ranch along Black Star Canyon Road: 0.5 mile WSW of Beacon Pines Ranch. 747 Comment
  UCSB47635  Linanthus californicus Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, on north side of road, 0.3km SE Trabuco Peak, Santa Ana Mtns. 1340 Comment
Read comments Jan 23 2015
  CLARK-A1528-3471  Linanthus dianthiflorus John C. Roos 1937-2-23 1306 Orange Laguna Beach Comment
  JEPS58363  Linanthus dianthiflorus Alice King Mar 1908 Orange Anaheim Comment
  RSA773510  Linanthus dianthiflorus Fred M. Roberts 1999-4-26 5198 Orange Lomas de Santiago: Lomas Ridge, tributary to Santiago Canyon Wash on ridge between Limestone Canyon and the wash, 1.4 km SE Silverado School, and 2.7 km N Bolero Lookout. 358 Comment
  SBBG98236  Linanthus dianthiflorus C. B. Wolf 1932-3-8 2675 Orange 0.5 mi N of Corona del Mar, borders of Newport Bay 7 Comment
  SD254679  Linanthus liniflorus D. E. Bramlet 2008-5-20 4278 Orange Peninsular Range: Santqa Ana Mountains Foothills: Northern Loma Ridge, 305 m west of Hwy 241, 975 m south of Santiago Canyon Road, 61 m north of access road (Black Star Canyon 7.5'Q) 355 Comment
  UCR266676  Linanthus liniflorus D. E. Bramlet 2008-5-20 4278 Orange Peninsular Range; Santa Ana Mtns. Foothills, northern Loma Ridge, 305 m west of Hwy 241, 975 m south of Santiago Canyon Rd., 61 m north of access road 355 Comment
  UCD123913  Lindernia dubia G. D. Barbe 1973-8-9 1693 Orange Bordier's Nursery, 7231 Irvine Blvd., Santa Ana (Tustin). Comment
  CAS-BOT-BC432276  Lithophragma affine D. E. Breedlove 1962-3-9 1790 Orange 14.3 miles E of San Juan Capistrano on State 74 335 Comment
  UCSB47587  Lithophragma affine Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, 1.9km WNW of Trabuco Peak, Santa Ana Mountains 1250 Comment
  RSA468223  Lithophragma affine subsp. mixtum Albert J. Perkins 1913-4-27 s.n. Orange Trabuco Canon. Comment
  IRVC298  Lobelia dunnii var. serrata R. Acevedo 1965-4-3 Orange east bluff. Newport Beach Comment
  IRVC1113  Lobularia maritima J. Pierce 1965-4-27 Orange Corona del Mar. Newport Beach Comment
  UCR217465  Lobularia maritima Mark A. Elvin 2003-2-23 2313 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  CAS-BOT-BC283494  Lolium multiflorum Carl B. Wolf 1932-7-7 3858 Orange Bryant Ranch, Bryant Ave, at pump house, 0.5 mile E of Los Alamitos Blvd Comment
  CAS-BOT-BC269106  Lolium perenne Ira L. Wiggins 1965-10-24 20290 Orange At corner of Yorba Linda and State College Boulevards, Fullerton Comment
  CAS-BOT-BC269108  Lolium perenne Scott D. White 1997-3-26 4810 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
  RSA688868  Lolium perenne Fred M. Roberts 2003-5-1 5670 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
  RSA699306  Lolium perenne subsp. multiflorum Keith E. Hoffmaster 1927-5-26 107 Orange Santa Ana Comment
  CLARK-A1528-4720  Lolium temulentum John C. Roos 1937-5-21 2068 Orange Santa Ana Comment
  RSA0105951  Lomatium lucidum Alan Romspert 1998-5-9 s.n. Orange Gypsum Cyn, Fremont Cyn by road, Santa Ana Mountains. Comment
  RSA697262  Lonicera subspicata Keith E. Hoffmaster 1934-4-22 s.n. Orange Santa Ana Mountains. Comment
  RSA753969  Lonicera subspicata A. C. Sanders, Fred M. Roberts 2008-7-16 35858 Orange Lomas de Santiago, upper Hangmans Tree Canyon. 395 Comment
  UCSC001314  Lonicera subspicata Peter Kamb 1948-6-19 1104 Orange Holy Jim Canyon, Santa Ana Mts. 610 Comment
  CAS-BOT-BC234845  Lonicera subspicata var. denudata Helen D. Geis 1902-5-1 s.n. Orange Santiago Canon [Canyon] Comment
  POM18126  Lonicera subspicata var. denudata P. A. Munz 1923-9-7 7738 Orange Santiago Peak, Santa Ana Mountains 1677 Comment
  UC1125290  Lonicera subspicata var. denudata A. Lewis Apr 1934 404 Orange Verdugo Canyon Cleveland National Forest, Corona Quadrangle Comment
  UC864942  Lotus I. W. Clokey 1932-3-1 5329 Orange Laguna Beach Comment
  RSA681023  Lotus hamatus Fred M. Roberts, David E. Bramlet 2003-3-13 5582 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 207 Comment
  RSA603367  Lotus heermannii Scott D. White, Brian Leatherman 1997-6-12 5338 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  UCR193022  Lotus heermannii A. C. Sanders, Mitch Provance 2008-5-20 35418 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  IRVC15129  Lotus heermannii var. heermannii A. S. Boughey 1968-7-9 383 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA621863  Lotus heermannii var. heermannii R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  UCR191350  Lotus salsuginosus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34637 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
  POM201833  Lotus scoparius L. M. Booth 1932-5-12 1025 Orange Newport Bay. Comment
  HSC98259  Lotus scoparius J. J. Wagoner 1965-4-11 14 Orange 6 mi. N of Modjeska Canyon near Irvine Lake off of Irvine Rd. 152 Comment
  RSA303527  Lotus scoparius Jim Shevock 1970-12-20 568 Orange Newport Back Bay. 11 Comment
  UCR252212  Lotus scoparius subsp. scoparius Amanda C. Swanson 2013-4-21 28 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  POM50643  Lotus strigosus L. R. Abrams 1901-06 s.n. Orange Laguna Comment
  RSA629056  Lotus strigosus Valerie L. Soza, LeRoy Gross 1999-6-10 523 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road. 1554 Comment
  IRVC21682  Lotus strigosus var. strigosus Fred M. Roberts 1975-5-7 75 60 Orange Dana Point: 0.7km N Dana Hills High School southern coastal 91 Comment
  PASA1114  Lotus subpinnatus Frank W. Peirson 1922-5-18 Orange Santa Ana 137 Comment
  UCR207792  Ludwigia hexapetala O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  UCR239881  Ludwigia peploides 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
  RSA38193  Ludwigia peploides subsp. peploides P. A. Munz 1946-10-2 11557 Orange Bank of Santa Ana River, Rancho Santa Ana. 122 Comment
  RSA162776  Ludwigia peploides subsp. peploides J. D. Olmsted 1959-9-22 985 Orange Along Santa Ana River N of Sycamore Park along Hwy. 8-9mile WSW of Corona, betw Santa Ana Mts and Puente Hills to Pacific Ocean 137 Comment
  RSA698718  Lupinus albifrons L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA681016  Lupinus bicolor Fred M. Roberts, David E. Bramlet 2003-3-13 5576 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 197 Comment
  RSA34611  Lupinus bicolor subsp. microphyllus N. C. Cooper 1944-6-4 1334 Orange San Juan Canyon, lower camp ground. 457 Comment
  RSA542580  Lupinus bicolor subsp. microphyllus Fred M. Roberts 1988-3-15 3849 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark 149 Comment
  IRVC8531  Lupinus bicolor subsp. umbellatus Charles W. Sexton 1973-3-19 s.n. Orange Irvine: Bonita Canyon Rd. Southern Coastal Comment
  RSA542582  Lupinus concinnus subsp. concinnus Fred M. Roberts, Carol A. Williams 1988-4-2 3891 Orange Santa Ana Mtns. hillside SE of Falcon Group Camp, 2.1km ESE Los Pinos Peak. 1012 Comment
  RSA594823  Lupinus concinnus subsp. concinnus Fred M. Roberts Jr., Sandra Leatherman, Brian Leatherman 1994-4-24 4917 Orange Santa Ana Mtns.: Lower Hot Springs Canyon, ca. 1 km NNW Juan Rancho Survey mark. 268 Comment
  CAS-BOT-BC216677  Lupinus excubitus subsp. hallii B. D. Stark 1933-2-3 1780 Orange Atwood, 8/9 miles e. of Atwood on the south side of santa Fe R.R. 106 Comment
  CAS-BOT-BC216694  Lupinus excubitus var. excubitus Carl B. Wolf 1930-3-25 1936 Orange 1 mile W of Esperanza siding of Santa Fe RR 106 Comment
  RSA2098  Lupinus excubitus var. hallii B. D. Stark 1931-4-18 1939 Orange Mouth of Gypsum Canyon, Santa Ana Mts, Santa Ana Canyon opposite the Botanic Garden. 152 Comment
  RSA503878  Lupinus excubitus var. hallii N. C. Cooper 1949-5-1 3942 Orange San Juan Canyon 610 Comment
  RSA6197  Lupinus excubitus var. hallii Carl B. Wolf 1932-5-27 3698 Orange Santa Fe R R, 3/4 mile West of Orange County. 91 Comment
  RSA798188  Lupinus excubitus var. hallii Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49597 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station Comment
  HSC14829  Lupinus hirsutissimus S. M. Clapp 1966-4-7 17 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  UCR177285  Lupinus microcarpus Scott D. White, Amanda Duchardt 2003-5-1 9152 Orange Santa Ana Mountains, Slopes above the west side of Canada Gobernadora and adjacent small canyon to the west 122 Comment
  JEPS65102  Lupinus microcarpus var. densiflorus Alice King June 1908 Orange Santa Ana Comment
  UC1129703  Lupinus sparsiflorus A. Lewis 1934-3-1 361 Orange Silverado Canyon; Cleveland National Forest, Corona Quad., Silverado Canyon Comment
  IRVC16565  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
  IRVC2302  Lupinus sparsiflorus subsp. sparsiflorus B. Newman 1965-4-14 s.n. Orange Dana Point. Southern Coastal Comment
  IRVC14753  Lupinus sparsiflorus subsp. sparsiflorus A. S. Boughey 1968-4-16 227 Orange Lower Modjeska Canyon, Fleming property. Sana Ana Mountains Comment
  RSA86962  Lupinus sparsiflorus subsp. sparsiflorus F. W. Peirson 1923-3-18 s.n. Orange Cypress Canyon, Santa Ana Mts. 122 Comment
  IRVC24496  Lupinus succulentus Fred M. Roberts, Gordon Marsh 1986-2-28 2621 Orange Mission Viejo: N of Oso Parkway; 4.2km NNE Saddleback Community College. Southern Coastal 200 Comment
  RSA685924  Lupinus succulentus Fred M. Roberts, D. E. Bramlet 2003-3-27 5623 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Chistianitos Cyn., 0.79km N Sycamore Gate, 0.23km W Chistianitos Rd. 122 Comment
  RSA701206  Lupinus succulentus Keith E. Hoffmaster 1928-3-5 s.n. Orange Santa Ana Mountains Comment
  UC1287106  Lupinus succulentus C. L. Hitchcock 1966-3-15 24133 Orange 1/2 mi e Brea; e of Brea Comment
  UCR223430  Lupinus succulentus Dick Newell, Don Millar 2011-2-15 062 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  UCR281555  Lupinus succulentus Mitch Provance, Jeremiah George 2017-3-20 317- 120 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
  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
  RSA0059075  Lupinus succulentus CNPS Accuracy Assessment Team 2014-5-8 9027 Orange Limestone Canyon. Comment
  SEINET12154823  Lupinus succulentus J. F. Bright, Wyman, C. 1933-1 8101 Orange Santa Ana foothills Comment
  UCR52603  Lupinus truncatus Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 Comment
  IRVC15186  Lupinus truncatus Gordon A. Marsh, K. Conrey 1975-4-14 s.n. Orange Lomas de Santiago: Lomas Ridge, 1/4mi NNW Rattlesnake Canyon Reservoir Dam Southern Coastal Comment
  IRVC8858  Lupinus truncatus Charles W. Sexton 1964-4-23 s.n. Orange Newport Beach. Southern Coastal Comment
  RSA719471  Lycium brevipes R. E. Riefner Jr. 2004-12-23 04 -558 Orange City of San Clemente, vicinity of San Clemente Pier at Ave. Del Mar. 3 Comment
  CAS-BOT-BC233467  Lycium californicum Frank W. Peirson 1924-2-10 4526 Orange Balboa, near bridge Comment
  CDA25998  Lycopersicon esculentum Mark A. Elvin, B. S. Nerhus 2006-11-4 5248 Orange Southern Coastal; Huntington Beach; 1.5 km southwest of Wintersburg, southwest of junction Slater and Goldenwest; Shipley Nature Center. Comment
  UC536934  Lythrum californicum Lawrence M. Booth 1932-6-4 1147 Orange Newport Lagoon Comment
  RSA0014840  Lythrum californicum F. W. Peirson 1924-8-29 5066 Orange 4 miles south of Santa Ana. Comment
  RSA0014841  Lythrum californicum Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49631 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  SD247671  Lythrum californicum R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49631 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Psrings. Shallow water of raodside ditch. Comment
  UC537266  Lythrum hyssopifolia Lawrence M. Booth 1932-7-19 1282 Orange Bolsas March Comment
  RSA0036648  Madia elegans subsp. elegans Robt. Allen, Chris Boever 2009-5-23 s.n. Orange Peninsular Ranges; Santa Ana Mountains region: Audubon Starr Ranch, west slope of Pruesker Peak, 431 air meters (0.27 air miles) northwest of View Rancho Survey Mark. 462 Comment
  CAS-BOT-BC206238  Malacothamnus fasciculatus Ethel H. Campbell 1921-5-1 88 Orange Between Oceanside and San Juan Capistrano. Comment
  SD87624  Malacothamnus fasciculatus F. W. Pearson 1924-5-31 4662 Orange sea bluffs, Laguna Comment
Read comments Jul 15 2013
  RSA714451  Malacothrix saxatilis var. saxatilis R. E. Riefner 1999-8-21 99 -360 Orange Laguna Beach, west of Pacific Coast Hwy., vicinity of Aliso Creek Park and south to West Drive. 0 Comment
  RSA0027428  Malacothrix saxatilis var. tenuifolia Fred M. Roberts 2013-7-18 7661 Orange San Joaquin Hills: Newport Beach, Buck Gully, along Buck Gully Trail, about 0.7 km from the north terminus of Poppy Street and 1.8 km WNW summit of Pelican Hill. 52 Comment
  RSA234493  Malacothrix saxatilis var. tenuifolia James Henrickson 1970-7-25 5039 Orange 2.5 miles NE of Huntington beach, 1 mile SE of Warner Ave. on sandy slope of E. Pacific Coast Hwy. at border of Bolsa Chica Salt Marsh. 0 Comment
  CDA8326  Malacothrix saxatilis var. tenuifolia T. C. Fuller 1962-6-7 8875 Orange Brea Canyon Road to Pomona, 1.2 miles north of Brea. 0 Comment
  POM201684  Malosma laurina L. M. Booth 821 Orange Santa Ana Canyon. Comment
  RSA702984  Malosma laurina D. E. Bramlet 2004-5-27 3594 Orange Donna O Neill Reserve. Southwest corner of the reserve, just east of the Telaga development. The site is 1.43km west of Cristianitos Rd. and 1.37km north of Pico. 183 Comment
  UCR109662  Malva parviflora G. S. Nuessly 1980-11-27 s.n. Orange Tustin. SE corner of 17th St. and Yorba Ave. 52 Comment
  RSA699278  Malvella leprosa Keith E. Hoffmaster 1933-5-22 631 Orange Santa Ana Comment
Read comments Jan 22 2008
  UC729853  Malvella leprosa Carl B. Wolf 1932-7-7 3855 Orange Bryant Ave., 0.1 mi. e. of Los Alamitos Blvd., 0.1 mi. e. of n.w. corner of SE 160 of Sect. 30 Bryant Ranch Comment
  CDA35815  Malvella leprosa Robert L. Pope 1957-5-17 Orange [No other data] 0 Comment
  UCSB16370  Marah macrocarpa Gerhart, Janet 1963-2-22 Orange 0.5 miles above locked gate on dirt road, Trabuco Canyon, 17.5 miles by road E of U.S. Highway 101 at El Toro Marine Base; 2.5 miles SE of Santiago Peak 396 Comment
  HSC14233  Marrubium vulgare D. W. Snell 1964-3-3 30 Orange 1 mi. E of Brea on Deadora Rd. Comment
  RSA666090  Marsilea vestita Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5429 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker., PCR Vernal Pool 4. 226 Comment
  UC1532996  Matricaria discoidea Robert F. Thorne 1975-4-5 45566 Orange near Irvine and coast; San Joaquin Marsh Comment
  RSA202176  Matricaria occidentalis L. M. Booth 1932-5-12 1011 Orange Newport Bay. Comment
  CAS-BOT-BC60301  Matthiola incana E. K. Balls 1955-4-4 20423 Orange West end of Newport Beach. 3 Comment
  JEPS13969  Matthiola incana D. L. Crawford 1922-8-3 743 Orange Aliso Point; Laguna Beach Region, Aliso Point Comment
  RSA594896  Meconella denticulata Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4909 Orange Santa Ana Mountains: San Juan Canyon, CA route 74, Lower San Juan Picnic Ground. 354 Comment
  RSA797820  Meconella denticulata Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49809 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  SD168148  Medicago lupulina R. L. Allen 1983-4-13 A 638 Orange Santa Ana,. 3030 Camille at Arapaho Comment
  IRVC2375  Medicago polymorpha Janet Bryant 1965-3-14 s.n. Orange Newport Beach; [Newport] Back Bay. Southern Coastal Comment
  IRVC2382  Medicago polymorpha Tony Price 1965-4-18 s.n. Orange Coasta Mesa; Santa Isabel St. Southern Coastal Comment
  JEPS65509  Medicago polymorpha Lawrence M. Booth 1932-5-19 1079 Orange Newport Bay Comment
  IRVC2378  Medicago polymorpha I. L. Wiggins 1966-3-31 20568 Orange Fullerton; associated road 200m S of Imperial Highway on shoulder. Southern Coastal Comment
  POM348035  Medicago polymorpha E. S. Spalding 1923-1-1 s.n. Orange Laguna Beach. Comment
  UCR192459  Medicago rigidula A. C. Sanders, Fred M. Roberts 2008-3-25 34527 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR208446  Medicago rigidula R. E. Riefner Jr. 2008-5-22 08- 120 Orange South Coast, unincorporated land between the cities of Lake Forest and Rancho Santa Margarita, El Toro Road near Meadow Ridge Drive 362 Comment
  IRVC10699  Medicago sativa B. T. Gittins 1963-4-20 177 Orange Jamboree and Palisades. Newport Beach Comment
  SBBG126176  Medicago truncatula A. C. Sanders with F. M. Roberts 2008-3-25 34521 Orange Weir Cyn, 4 mi ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
Read comments Feb 28 2016
  SD260949  Medicago truncatula A. C. Sanders, Fred M. Roberts 2008-4-8 34739 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir. Ridge top. 351 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
  UC1929696  Melaleuca viminalis R. E. Riefner Jr. 2007-4-1 07 -163 Orange City of Laguna Niguel, Oso Creek, ca. 1.5 mi N from Paseo De Colinas St. on Camino Capistrano St. Comment
  RSA725517  Melia azedarach Fred M. Roberts, Robert L. Allen 2007-9-28 6613 Orange Lomas de Santiago: above lower Santiago Cyn. wash along Santiago Cyn. Rd. just south of Irvine Mesa, 3.3 km N Bolero Lookout. 332 Comment
  UCR188928  Melianthus major Robert DeRuff 2007-11-24 s.n. Orange Newport Beach, Upper Newport Bay, above Back Bay Drive in the vicinity of the Narrows, c. 0.8 km north of Big Canyon 26 Comment
  CAS-BOT-BC281595  Melica imperfecta John Thomas Howell 1927-6-17 2547 Orange N side of Santa Ana Canon 152 Comment
  RSA74  Melica imperfecta J. T. Howell 1928-3-17 877 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  POM7085  Melica imperfecta var. flexuosa P. A. Munz, L. T. Street, G. Williams 1919-5-3 2659 Orange Santa Ana River Canyon. Comment
  IRVC2397  Melilotus albus Anonymous 1965-3-14 s.n. Orange Dana Point. Southern Coastal Comment
  CDA25989  Melilotus indicus Mark A. Elvin 2004-5-2 3410 Orange Southern Coastal; Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7km (air) NNW UC Irvine campus center Comment
  RSA678511  Melilotus indicus Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1128 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA698034  Melilotus indicus Unspecified s.n. Orange Roadside-Near Orange Co. Park. Comment
  RSA734339  Melilotus indicus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34636 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  UCD108069  Melilotus indicus E. Frost 1996-5-11 14 Orange Newport Back Bay, 70 yards in along bike path. 7 Comment
  SEINET12147961  Melilotus indicus Unknown 1933-1 8177 Orange Laguna Beach Comment
  UCSB42714  Melilotus indicus Teramura, A. 1970-4-4 Orange Along the R.R. tracts N of the Old Rancho Santa Ana Botanical Gardens 121 Comment
  RSA0014074  Mentzelia micrantha Fred M. Roberts 2008-5-28 7011 Orange Lomas de Santiago: Loma Ridge, south fork Rattlesnake Cyn., 2.0km above Rattlesnake Reservoir dam and 2.2km WNW Bee Peak. 230 Comment
  UC149125  Mesembryanthemum nodiflorum LeRoy Abrams 1903-4-20 3280 Orange near San Juan (along the seashore); Southern California Comment
  UCR237912  Mesembryanthemum nodiflorum Mark A. Elvin 2003-2-2 2277 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  POM156685  Mesembryanthemum nodiflorum L. R. Abrams 1903-4-20 3280 Orange Along the seashore, near San Juan. Comment
  RSA18535  Mesembryanthemum nodiflorum C. B. Wolf 1927-7-23 662 Orange Along the coast just north of San Clemente. Comment
  RSA625807  Microseris douglasii subsp. platycarpha Scott D. White, Noel Davis 1998-4-24 6345 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
  RSA799939  Microseris douglasii subsp. platycarpha Justin M. Wood 2011-4-12 3650 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA789582  Microseris heterocarpa R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49654 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA598918  Microseris lindleyi Scott D. White 1997-3-28 4846 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  JEPS87331  Mimulus David M. Thompson 1992-5-16 1066 b Orange 2.4 mi n and w Hwy 74 (along USFS Road 3S04 (n side of paved loop allowing access to Main Divide Road)); Santa Ana Mts. 950 Comment
  UC1424855  Mimulus Bennett, Dunn and Dziekanowski 1976-7-21 439 Orange Pacific Island Estates condominium Laguna Hills Comment
  UC943890  Mimulus H. E. McMinn, M. Van Rensselaer 1945-6-9 1910 AB Orange ca. 5 mi e Laguna Beach (on Laguna Canyon Highway) Comment
  UCD122219  Mimulus aurantiacus Steve Mason; Pam Rector 1993-4-16 1 Orange Laguna Niguel, Sea View Park Trail, end of trail behind blue rails and Ceanothus sp. Coastal sage scrub on bluff near housing development overlooking canyon and coastline. 182 Comment
  POM305825  Mimulus aurantiacus var. pubescens Henry J. Ramsey, Henry J. Ramsey 1937-4-2 1075 Orange Capistrano Canyon. Comment
Read comments Dec 17 2011
  RSA0013911  Mimulus aurantiacus var. pubescens Fred M. Roberts 2012-4-24 803784 Orange San Joaquin Hills: Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  UCR97815  Mimulus aurantiacus var. pubescens Scott D. White 1997-3-28 4833 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  UCSB52448  Mimulus aurantiacus var. pubescens Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills; Carbon Canyon; Carbon Canyon Rd; 0.3km by road SW county line; 2.5km NNW Gilman Peak 260 Comment
  UCSB56675  Mimulus aurantiacus var. pubescens Roberts, Fred 1984-2-4 Orange Laguna Beach; South Laguna; Temple Hill; Upper Hobo Canyon; 1.2km NNE Goff Island; 2.4 km S Top of the World School 200 Comment
  OBI9518  Mimulus aurantiacus var. puniceus H. E. McMinn 1949-6-9 5617 Orange About 3 mi E of San Juan Capistrano on hwy 74 Comment
  RSA454329  Mimulus aurantiacus var. puniceus N. C. Cooper 1949-5-1 3946 Orange San Juan Canyon. 610 Comment
  RSA747634  Mimulus aurantiacus var. puniceus Fred M. Roberts 2008-5-16 6981 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
  UCR16001  Mimulus aurantiacus var. puniceus Steven Holzhey 1966-3-9 s.n. Orange Peninsular Range; Santa Ana Mtns., Along San Juan Capistrano Hwy Comment
  RSA0054841  Mimulus brevipes Keith E. Hoffmaster 1934-4-8 150 Orange Santa Ana mts. Comment
  RSA712936  Mimulus cardinalis Fred M. Roberts 2005-10-3 6291 Orange San Juan Capistrano: San Juan Creek wash, La Novia Road Bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA726130  Mimulus cardinalis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33017 Orange Peninsular Range; Santa Ana Mtns.: San Juan Canyon, from Lower San Juan Picnic Area to ca. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 366 Comment
  RSA753971  Mimulus cardinalis A. C. Sanders, Fred M. Roberts 2008-7-16 35835 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin. 391 Comment
  UCR193808  Mimulus cardinalis A. C. Sanders, Fred M. Roberts 2008-7-16 35835 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  POM256712  Mimulus clevelandii W. Pequegnat 1940-6-15 s.n. Orange Trabuco Peak 1220 Comment
  RSA124722  Mimulus clevelandii E. K. Balls, Percy C. Everett 1957-11-25 22845 Orange 4.7 miles E of Silverado 1341 Comment
  UC718440  Mimulus clevelandii P. C. Everett 1935-6-18 7200 Orange 7 mi from Santiago Peak Lookout Station (Mian Divide Motorway); Santa Ana Mts. 1310 Comment
  UCR230839  Mimulus clevelandii Dick Newell, Judy Booth 2011-6-19 181 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, above Santiago Canyon 1086 Comment
  POM193491  Mimulus floribundus Helen E. Sweet 1928-08 s.n. Orange Santiago Canyon. Comment
  RSA727  Mimulus floribundus Thomas Howell 1927-7-27 492 Orange Santa Ana River bottom. Comment
  UCSB69276  Mimulus floribundus Sanders, A.; Salvato, T. 2008-5-13 Orange Peninsular Range; Santa Ana Mtns; Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn; c. 1/2 mile below Modjeska Canyon confluence; in Hangman Tree and in open sand along Santiago Cr. wash 366 Comment
  UCR193318  Mimulus guttatus A. C. Sanders, T. B. Salvato 2008-5-13 35387 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA423690  Minuartia californica M. B. Dunkle 1935-2-10 4335 Orange Laguna Creek; Coastal Southern California. 61 Comment
  POM6462  Minuartia douglasii P. A. Munz, L. T. Street, G. Williams 1919-5-3 2615 Orange Santa Ana River Canyon. Comment
  UCR192489  Mirabilis laevis A. C. Sanders, Fred M. Roberts 2008-3-25 34556 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR281547  Mirabilis laevis Mitch Provance, Jeremiah George 2017-3-20 317- 123 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
  RSA0113242  Mirabilis laevis Lyman Benson 1946-4-27 12050 Orange Corona del Mar. 15 Comment
  RSA465231  Mirabilis laevis var. crassifolia M. B. Dunkle 1933-3-5 3078 Orange San Juan Canyon 305 Comment
  RSA585058  Mirabilis laevis var. crassifolia D. Atwood 1993-3-27 17707 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  UCR239628  Mirabilis laevis var. crassifolia Fred M. Roberts 2012-4-24 7501 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  CAS-BOT-BC434668  Mirabilis laevis var. crassifolia John Thomas Howell 1927-6-21 2562 Orange North side of Santa Ana Canon [Canyon] 152 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
  RSA191948  Monardella hypoleuca Robert F. Thorne 1963-7-26 32858 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Cleveland National Forest. 732 Comment
Read comments Aug 13 2012
  IRVC22034  Monardella hypoleuca subsp. hypoleuca Fred M. Roberts 1983-9-26 1128 Orange Lion Canyon, Chiquito Basin Trail, 3.5km NNE Lower San Juan Picnic Ground; 4.2km SSE Los Pinos Peak, Santa Ana Mountains 815 Comment
Read comments Sep 18 2012
  SD220682  Monardella hypoleuca subsp. hypoleuca Lisa Young 2009-6-18 Orange East end of the town of Silverado, on old mine trail heading south between Pine and Halfway Canyons. On top of a ridge. 835 Comment
  RSA0005447  Monardella hypoleuca subsp. hypoleuca Fred M. Roberts, R. E. Riefner 1988-7-19 4117 Orange Santa Ana Mtns: Upper Silverado Canyon, Maple Springs Truck Trail, 2.1km NNW Modjeska Peak. 1260 Comment
  SD239801  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31613 Orange Santa Ana Mountains: near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak (Santiago Peak 7.5'Q) 997 Comment
  UC1995348  Monardella hypoleuca subsp. intermedia Carl B. Wolf 1936-6-22 8003 Orange 3 mi above F. S. Gate (along truck trail to Modjeska Pk.); Santa Ana Mts., Santiago Canyon 762 Comment
  UCR158808  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31607 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 820 Comment
  UCR199794  Monardella hypoleuca subsp. intermedia Justin M. Wood 2008-6-23 15 Orange Santa Ana Mountains, foothills, on the Irvine Ranch, south of Limestone Canyon, c. 1/2 mi south of the sinks 351 Comment
  RSA401628A  Monardella macrantha subsp. hallii Albert J. Perkins 1914-5-30 s.n. Orange Summit of Santiago Peak Comment
Read comments Jan 12 2011
  RSA592097  Monardella macrantha subsp. hallii R. E. Riefner Jr. 1993-6-28 93 -143 Orange W slope Modjeska Peak along main jeep trail. 1300 Comment
  RSA7408  Monardella macrantha subsp. hallii Carl B. Wolf 1933-8-24 5406 Orange Santa Ana Mountains:along main divide motorway on west slope of Modjeska Peak 1372 Comment
  IRVC26422  Moraea bipartita Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3157 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC26702  Moraea karroica Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3168 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC26728  Moraea tricuspidata Mark A. Elvin 2004-4-4 3224 Orange UCI Arboretum Southern Coastal 15 Comment
  CAS-BOT-BC275294  Muhlenbergia microsperma John Thomas Howell 1927-6-5 2436 Orange Santa Ana Canon, N side 152 Comment
  LA9673  Muhlenbergia microsperma LeRoy Abrams; 1903-4-18 3260 Orange near San Juan Capristrano Comment
  POM193518  Muhlenbergia microsperma J. B. Feudge 1929-4-7 2035 Orange Rancho Santa Ana, N.E. Orange County. 305 Comment
  RSA542545  Muhlenbergia microsperma Fred M. Roberts 1988-2-18 3802 Orange Lomas de Santiago: Ridge west of Irvine Lake, 1.0 km NW Santiago Dam spillway 244 Comment
  RSA562732  Muhlenbergia microsperma Steve Boyd, Timothy S. Ross 1992-5-19 7448 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
  UCR190991  Muhlenbergia microsperma A. C. Sanders, Fred M. Roberts 2008-4-22 35009 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
  UCR235509  Muhlenbergia microsperma R. E. Riefner Jr. 2011-8-16 11- 99 Orange South Coast, Newport Beach, Orange County Parks and Recreation lands, along Newport Coast Drive, between Vista Ridge Road and Alteza Road 281 Comment
  UCR2585  Muhlenbergia microsperma F. M. Reed 1922-4-30 4721 Orange Arch Beach 229 Comment
  UCR192222  Muhlenbergia rigens A. C. Sanders, Fred M. Roberts 2008-5-6 35273 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 379 Comment
  RSA0010808  Myoporum laetum A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23335 Orange Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 0 Comment
  UCR239624  Myoporum rapense Fred M. Roberts 2012-4-24 7496 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  CAS-BOT-BC219359  Nama stenocarpa Le Roy Abrams 1901-6-13 1770 Orange Laguna Comment
  RSA562730  Narcissus tazetta Steve Boyd, Timothy S. Ross 1992-5-20 7466 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. 304 Comment
Read comments Feb 4 2016
  CAS-BOT-BC259820  Nassella cernua Ira L. Wiggins 1966-3-16 20527 Orange Near entrance to Firestone Boy Scout Reservation Comment
  RSA3181  Nassella lepida C. B. Wolf 1932-3-8 2682 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA450846  Nassella lepida Fred M. Roberts 1983-3-10 886 Orange Dana Point headlands, S of Scenic Dr, 0.3km W Dana Point Harbor, 0.8km S Richard Henry Dana School. 45 Comment
  RSA700190  Nassella lepida Anonymous s.n. Orange Siverado. Comment
Read comments Oct 7 2013
  RSA734340  Nassella lepida A. C. Sanders, Linda Farley, Fred M. Roberts, David E. Bramlet 2008-4-1 34635 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  RSA91618  Nassella lepida F. W. Peirson 1923-3-25 5362 Orange Aliso Creek, near Laguna Beach. Comment
  UCD87541  Nassella pulchra C. L. Hitchcock 1966-3-15 24142 Orange Stearns Lease, 1.5 miles east of Brea. Comment
  POM201688  Navarretia atractyloides L. M. Booth 816 Orange Santa Ana Canyon Comment
  RSA469868  Navarretia hamata M. B. Dunkle 1934-6-18 3966 Orange Upper San Juan Canyon open road, Southern Coastal. Comment
  UCR24248  Navarretia hamata subsp. leptantha Alfred R. Roos 1941-6-14 s.n. Orange Corona del Mar 91 Comment
  RSA603289  Navarretia hamata subsp. leptantha R. E. Riefner 1997-7-18 97 -240 Orange Near Fullerton Nature Park. Comment
  RSA678514  Nemacaulis denudata var. denudata Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1131 Orange Bolsa Chica Beach State Park and Bolsa Chica Ecological Reserve Boundary, alongside Pacific Coast Highway. 3 Comment
  RSA734280  Nemacladus ramosissimus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34643 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  RSA773546  Nemacladus ramosissimus Fred M. Roberts 1999-4-26 5196 Orange Lomas de Santiago: Lomas Ridge, tributary to Santiago Canyon Wash on ridge between Limestone Canyon and the wash, 1.4 km SE Silverado School, and 2.7 km N Bolero Lookout. 358 Comment
  UCR190983  Nemacladus ramosissimus A. C. Sanders, Fred M. Roberts 2008-4-22 34999 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
  UCR191357  Nemacladus ramosissimus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34643 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
  RSA721840  Nemophila aurita Unspecified s.n. Orange Orange County park. Comment
  RSA749469  Nemophila menziesii subsp. menziesii Fred M. Roberts 1999-4-22 5189 Orange Lomas de Santiago: tributary to Santiago Creek wash along spur road on ridge between Limestone Cyn. and Santiago Creek wash opposite Williams Cyn., 1.8 km SE Silverado Sch. and 2.3 km NNW Bolero Lookout. 396 Comment
  CAS-BOT-BC465565  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. 80 Comment
  CAS-BOT-BC533010  Nephrolepis cordifolia R. E. Riefner, Jr. 2016-5-24 16 -155 Orange City of Laguna Niguel, Alicia Pkwy S of Seabird Way 96 Comment
  UCR266153  Nephrolepis cordifolia R. E. Riefner Jr. 2014-6-14 14- 171 Orange South Coast, city of Newport Beach, Cliff Drive Park, along Cliff Drive near Beacon Street 44 Comment
  IRVC155  Nephrolepis exaltata var. bostoniensis Lance McCabe 1965-5-4 HS 536 Orange Corona del Mar. Southern Coastal Comment
  IRVC154  Nephrolepis exaltata var. bostoniensis L. Burns 1965-5-1 s.n. Orange Corona del Mar; Cameo Shores. Southern Coastal Comment
  RSA741478  Nerium oleander R. E. Riefner 2008-5-30 8 -124 Orange Near City of Orange, Santiago Creek, vicinity of Jackson Ranch Rd. , at Santiago Creek Rd., Irvine Ranch Reserve, Management Area 15. Comment
  RSA687  Nicotiana bigelovii var. wallacei J. T. Howell 1927-7-5 266 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  RSA0020230  Nicotiana clevelandii Philip A. Munz 1923-4-4 s.n. Orange Laguna Beach. Comment
  RSA0020231  Nicotiana clevelandii Philip A. Munz 1921-4-16 4408 Orange 1 mi. N. of Laguna Beach. Comment
  HSC21278  Nicotiana glauca J. J. Wagoner 1965-4-11 15 Orange 6 mi. N of Modjeska Canyon near Irvine Lake off of Irvine Rd. 152 Comment
  RSA718957  Nicotiana glauca Fred M. Roberts, Robert L. Allen 2006-10-8 6423 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  UCD126659  Nicotiana glauca P. B. Kennedy 1925-1-12 11 Orange Irvine Ranch. Comment
  RSA0060156  Nicotiana quadrivalvis Fred M. Roberts 1999-4-21 5177 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
  RSA0060158  Nicotiana quadrivalvis A. C. Sanders, Fred M. Roberts 2008-4-22 34986 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
  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
  RSA759249  Nolina cismontana Robt. Allen, Celia Kutcher 2007-5-19 s.n. Orange San Juan Trail, circa 3.4 air miles (5458m) below (southwest of) trailhead at southern edge of Blue Jay Campground, circa 1.3 air miles (2121m) above (northeast of) trailhead at Hot Springs Canyon. 736 Comment
  RSA759277  Nolina cismontana Robt. Allen, Lori Whalen 2008-7-5 s.n. Orange Dry foothills along a SW-facing ridge, slong Santiago Truck Trail, 0.5 air miles E of USPF Forest Gate at Modjeska Grade Road. Comment
  UCR152711  Nolina cismontana James C. Dice 1985-5-23 593 Orange Santa Ana Mtns, Upper Borrego Canyon along Santiago Canyon Rd., 1.8 km south of Modjeska Canyon Rd 440 Comment
  UC501522  Nolina parryi Frank W. Peirson 1922-5-18 3026 Orange canyon heading e at river Santa Ana River 228 Comment
Read comments Nov 26 2007
  SD234443  Nothoscordum gracile A. C. Sanders 2008-7-3 35714 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn, at Agustine Staging Area (Black Star Canyon 7.5' Q) 259 Comment
  RSA698247  Oenothera pallida var. californica Unspecified s.n. Orange Santa Ana Comment
  IRVC2711  Oenothera speciosa Bonnie Simpson 1965-4-2 HS 387 Orange Santa Ana Mtns: Silverado, Silverado Cyn. Peninsular Ranges Comment
  CDA6652  Oldenlandia corymbosa W. Humphrey 1973-7-19 Orange 7231 Irvine Boulevard, Santa Ana. 0 Comment
  RSA680344  Oncosiphon piluliferum Scott D. White, Jeff Lincer 2003-7-7 9616 Orange Former El Toro Marine Corps Air Stn. East of El Toro Marine Sch. and Irvine Blvd.; site of former dump. 140 Comment
  UCR155808  Oncosiphon piluliferum Robert Noll 2005-4-29 s.n. Orange South Coast, El Toro, Marine Corps Air Station, along road to archery range 107 Comment
  POM279574A  Opuntia X occidentalis Lyman Benson 1950-4-29 14339 Orange South end of San Clemente. Hill 1/2 mile from ocean. 152 Comment
Read comments Oct 21 2009
  POM285338  Opuntia X occidentalis Lyman Benson 1955-10-17 15599 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  POM284094B  Opuntia littoralis Lyman Benson 1955-10-17 15598 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 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
  UCR223965  Opuntia littoralis Fred M. Roberts 2008-10-27 7127 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8 km west northwest of Marine Institute, Dana Point Harbor 65 Comment
Read comments Nov 20 2018
  UCR263408  Opuntia littoralis A. C. Sanders 2008-4-29 35122 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
  RSA542651  Opuntia littoralis var. vaseyi Fred M. Roberts, Carol A. Williams 1988-4-12 3924 Orange Lomas de Santiago: Loma Ridge, 3.3 km NW Bolero Lookout. 475 Comment
  IRVC14194  Opuntia prolifera J. W. Johnson 1976-8-11 Orange Irvine; UCI, 300ft. south of Medical Center; on heavy clay soil in grazing climax of mediterranean grasses. Destroyed by construction. Southern Coastal Comment
  POM285342  Opuntia prolifera Lyman Benson 1955-10-17 15594 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  RSA0066512  Orobanche fasciculata Le Roy Abrams 1901-6-15 1847 Orange Santiago Peak. Comment
  POM17442  Orthocarpus purpurascens Philip A. Munz 1923-4-1 6599 Orange Laguna Canyon. 122 Comment
  CAS-BOT-BC254369  Oryza sativa Ira L. Wiggins 1965-11-6 20335 Orange Near railroad right of way, along W side of Atwood Comment
  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-BC355773  Osmadenia tenella Munz; Street; Williams 1919-5-3 2631 Orange Santa Ana River Canon [Canyon] Comment
  CAS-BOT-BC355776  Osmadenia tenella Agnes M. Bowman 1899-6-1 s.n. Orange Santiago Cr. Comment
  CAS-BOT-BC355778  Osmadenia tenella John Thomas Howell 1927-7-28 2867 Orange On n. side of Santa Ana Canon [Canyon] 182 Comment
  RSA684330  Osmadenia tenella Scott D. White, Amanda Duchardt 2003-4-10 9023 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  UCR281571  Osmadenia tenella Mitch Provance 2017-6-9 617- 85 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.25 miles NNE of intersection with Castlewood Dr. 164 Comment
  IRVC15628  Osmorhiza brachypoda J. W. Johnson 1977-5-28 Orange Santiago Canyon, Fleming Property at E end of Modjeska; shaded bank of canyon side below chaparral. Santa Ana Mountains Comment
  POM8753  Osmorhiza brachypoda P. A. Munz, R. D. Harwood 1920-4-25 3722 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  RSA97393  Osmorhiza brachypoda F. W. Peirson 1923-5-6 3502 Orange From Trabuco Canyon to Santiago Peak 1646 Comment
  SD255070  Osmorhiza brachypoda R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49790 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA782192  Osteospermum fruticosum Mark A. Elvin 2003-2-23 2315 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 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
  UCR193383  Oxalis californica A. C. Sanders, Mitch Provance 2008-5-20 35391 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
  POM196704  Oxalis pes-caprae E. Johnson 1930-2-25 s.n. Orange About Orange Comment
  RSA571473  Oxalis pes-caprae Steve Boyd, Tim S. Ross 1994-3-22 8203 -B Orange San Juan Canyon along San Juan Creek near confluence with Hot Springs Canyon. Entire area burned in extensive fire the previous fall. 229 Comment
  SBBG105032  Oxalis pes-caprae S. Boyd, T. Ross 1994-3-22 8203 B Orange San Juan Cyn along San Juan Crk near confluence with Hot Springs Cyn 228 Comment
  POM353419  Oxalis wrightii F. R. Fosberg 1931-6-21 S 5097 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA501314  Paeonia californica S. Zona, G. A. Allen, A. Liston, L. Rieseberg 1989-2-5 304 Orange San Juan Hot Springs along Ortega Hwy, alt 230m. 230 Comment
  RSA650648  Paeonia californica D. E. Bramlet 2000-4-7 2945 Orange This site is 30m south of the SCE maintenace road and 1km east of Weir Canyon. The locality is 1.5km west of Blind Canyon. 287 Comment
  RSA700032  Paeonia californica L. C. Hull 1934-3-11 s.n. Orange Ortega Highway Comment
  SD247679  Paeonia californica R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49715 Orange Santa Ana Mountains: Bedrod Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail. Comment
  UC2014867  Pallenis maritima R. E. Riefner Jr. 2012-5-25 12 -393 Orange City of Dana Point, rocky shore between Mussel Cove and Salt Creek Beach Comment
  RSA60  Panicum capillare J. T. Howell 1927-7-27 489 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA92454  Panicum capillare F. W. Peirson 1924-10-19 5230 Orange Wintersberg Comment
  RSA724124  Panicum dichotomiflorum subsp. dichotomiflorum R. E. Riefner 2005-9-20 5 -674 Orange City of Huntington Beach, Huntington Central Park at Goldenwest St. 1 Comment
  RSA731536  Panicum dichotomiflorum subsp. dichotomiflorum R. E. Riefner 2007-9-30 7 -417 Orange City of Yorba Linda, N floodplain of Santa Ana River near Yorba Linda Regional Park. 98 Comment
  UCD89738  Panicum miliaceum Beecher Crampton 1965-10-27 7585 Orange 2 miles E of Irvine, UC South Coast Field Station. Comment
  RSA724059  Panicum virgatum R. E. Riefner 2006-10-8 6 -482 Orange City of Irvine, San Diego Creek near 405-Freeway. 49 Comment
  POM202594  Parapholis incurva L. M. Booth 1932-5-12 1009 Orange Newport Bay. Comment
  RSA753165  Parietaria floridana D. E. Bramlet 2008-5-15 4272 A Orange Upper Borrego Cyn. 152m east of the access road and 1.7km west of Santiago Cyn Road 450 Comment
  UCSB52898  Parietaria hespera Roberts, Fred; Roberts, Dar 1983-3-22 Orange Santa Ana Mtns.: San Juan Canyon, Calif. Rte. 74, south side, 4.3km by road E San Juan Guard Station; 2.3km WNW Sitton Peak 407 Comment
  POM2138  Parietaria hespera var. hespera D. L. Crawford 1916-5-15 991 Orange Languna Canyon. Shade Comment
  UCR16077  Paspalum dilatatum N. J. Moriarty 1973-5-26 730526- 01 Orange South Coast, Huntington Beach, vacant lot at the corner of Beach Blvd. and Memphis Avenue 15 Comment
  UCSB68449  Paspalum dilatatum Anderson, J. 1966-5-16 Orange Bayview Ave. and Zenith Ave. Comment
  CAS-BOT-BC259735  Paspalum distichum Frank W. Peirson 1924-5-31 4648 Orange Laguna Canon. 350 Comment
  POM1056  Paspalum distichum Daniel J. Crawford 1916-7-26 750 Orange Aliso Canyon Comment
  UC455153  Paspalum distichum I. J. Condit 1908-7-21 Orange Los Alamitos Comment
  RSA733056  Paspalum vaginatum R. E. Riefner 2008-1-13 41855 Orange City of Laguna Beach, Aliso Creek at Pacific Coast Hwy. 9 Comment
  SBBG125948  Paspalum vaginatum R. E. Riefner Jr., K. Campbell 2008-8-31 08 -267 Orange tidal portion of San Diego Crk, immediately E of Hwy 73 overpass; City of Irvine 1 Comment
  SBBG132293  Paspalum vaginatum R. E. Riefner Jr. 2008-8-31 08 -267 Orange San Diego Crk, E side of Hwy. 73 overpass; Irvine 0 Comment
  SBBG133631  Paspalum vaginatum R. E. Riefner Jr. 2008-7-29 08 -256 Orange Salt Crk Beach, near Ritz Carlton Hotel; Dana Point 0 Comment
  RSA737240  Paspalum virgatum R. E. Riefner, K. Campbell 2008-8-31 08 -267 Orange Orange County: city of Irvine, San Diego Creek, E side of Hwy 73 overpass, alt 2ft. 1 Comment
  CDA25877  Pelargonium Mark A. Elvin 2005-5-14 4313 Orange Southern Coastal; UCI Arboretum Comment
  UCR218457  Pelargonium X hortorum Robert DeRuff 2009-1 35 Orange South Coast, Upper Newport Bay, below intersection of Back Bay Dr. and East Bluff Dr. 12 Comment
  RSA686730  Pellaea andromedifolia M. B. Dunkle 1935-2-23 4339 Orange Dana Point. 9 Comment
  RSA773505  Pellaea andromedifolia Fred M. Roberts 1999-5-14 5225 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon, 0.7 km NW Bolero Spring and 2.6 km SW Silverado School 490 Comment
  RSA640077  Pellaea andromedifolia var. andromedifolia E. Robinson, Crocker 1916-3-29 s.n. Orange Santa Ana Mts. Miller's Canyon, near Murrietta. Comment
  UCR113460  Pellaea mucronata subsp. mucronata R. E. Riefner Jr. 2000-8-8 20- 719 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, NE property, E slope of upper Fremont Canyon, south of Donaldson Ranch and south of powerline/ National Forest boundary 454 Comment
  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
  POM11678  Pellaea mucronata var. mucronata P. A. Munz, Johnston 1922-5-18 5305 Orange Santa Ana River Canyon, side of canyon 304 Comment
  LA102210  Pennisetum ciliare J. West; 1983-10-8 sn Orange freeway right of way along Newport Freeway (#55) at its intersection with Chapman Ave Comment
  CDA2296  Pennisetum setaceum T. C. Fuller 1961-10-17 7156 Orange East side of Hwy. 101 Alt., opposite 2787 So. Pacific Coast Highway, Laguna Beach. 0 Comment
  RSA725933  Pennisetum villosum R. E. Riefner 2003-11-30 3 -486 Orange South Coast: Santa Ana, 55 Freeway near Brookhollow St. 32 Comment
  UCR236680  Pennisetum villosum Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7102 Orange Peninsular Ranges, Santa Ana River Canyon: Yorba Linda Regional Park adjacent to Santa Ana River, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river 87 Comment
  RSA0054891  Penstemon cordifolius Keith E. Hoffmaster 1941-7-14 1251 Orange At Blanding Nursery, Santa Ana. Comment
  UCR227629  Penstemon grinnellii Robt. L. Allen 2003-6-22 12273 Orange Santa Ana Mountains, west-facing flank of Santiago Peak, along North Main Divide Road 1555 Comment
  UC1011907  Penstemon heterophyllus F. W. Pennell and E. M. Harvey 1949-6-29 26804 Orange Ortega Highway above San Juan Capistrano; above San Juan Capistrano Comment
  UCR230831  Penstemon heterophyllus Dick Newell, Judy Booth 2011-6-19 179 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, above Santiago Canyon 1086 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
  UCR97636  Penstemon heterophyllus var. heterophyllus George K. Helmkamp, E. A. Helmkamp 1997-4-24 1647 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 1.6 mi. SE of Ortega Hwy (Calif. Hwy 74) on Rd. 7-S14 549 Comment
  UCR241073  Penstemon spectabilis Dick Newell, Don Millar 2013-4-16 325 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago; lower Hangman's Tree Canyon at Santiago Canyon wash, 300 ft. west of Santiago Canyon Rd. 361 Comment
  CAS-BOT-BC330488  Pentachaeta aurea Theodore Payne 1910-4-17 s.n. Orange El Toro, near the epot Comment
Read comments Apr 24 2021
  POM50883  Pentachaeta aurea L. R. Abrams 1901-06 1787 Orange San Joaquin Hills Comment
  UC718583  Pentachaeta aurea P. C. Everett 1935-4-22 6463 Orange 1/4 mi w Horseshoe Bend; Santa Ana Canyon 121 Comment
  UCR192220  Pentachaeta aurea subsp. allenii A. C. Sanders, Fred M. Roberts 2008-5-6 35272 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 379 Comment
  UCR222664  Pentachaeta aurea subsp. allenii R. E. Riefner Jr. 2008-6-25 08- 169 Orange Peninsular Range; Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Lakeview SCE Road 480 Comment
  RSA741730  Pentachaeta aurea subsp. allenii R. E. Riefner 2008-6-25 08 -169 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Lakeview SCE Road. 480 Comment
  IRVC20439  Pentagramma triangularis subsp. triangularis Fred M. Roberts, K. G. Marsh 1983-5-26 1093 Orange Dana Point Headlands: 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School Southern Coastal 82 Comment
  SD145971  Peritoma arborea var. globosa R. D. Goeden, D. W. Ricker 1965-6-21 Orange Dana Point 60 Comment
  RSA710822  Persea cinerascens R. W. Scora 1997-5-13 5142 Orange Zentmyer Avocado Collection, Field 3, South Coast Field Station, Irvine. 21 Comment
  SBBG61477  Persicaria amphibia J. Ewan 1931-7-31 Orange Westfall near Huntington Beach Comment
  POM4185  Petunia parviflora Philip A. Munz 1918-5-4 2203 Orange Laguna Beach. Comment
  UCR193020  Phacelia A. C. Sanders, Mitch Provance 2008-5-20 35416 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA539386  Phacelia brachyloba Fred M. Roberts, Carol A. Roberts 1988-6-2 4043 Orange Santa Ana Mtns: Maple Spirngs Truck Trail, 8.7km above Silverado Gate, 2.4km N Modjeska Peak. 1155 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
  VVC263  Phacelia brachyloba P. J. MacKay 1990-5-25 s.n. Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  POM49691  Phacelia cicutaria var. hispida L. R. Abrams 1902-1 512 Orange Santiago Creek Canyon. Comment
  RSA749315  Phacelia cicutaria var. hispida Fred M. Roberts, Linda Farley 2008-3-28 6820 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
  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
  RSA708371  Phacelia curvipes Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6239 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 Comment
  RSA426057  Phacelia davidsonii Christopher Davidson 1977-5-18 5608 Orange Cleveland National Forest; Santiago Peak (on Orange-Riverside Co. line) 1707 Comment
  RSA3175  Phacelia distans Carl B. Wolf 1932-3-8 2688 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  UCR215310  Phacelia distans Fred M. Roberts 2008-3-26 6800 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
  UCR224037  Phacelia distans Justin M. Wood 2010-3-31 1445 Orange Santa Ana Canyon, Santa Ana River floodplain, 0.25 mi north of Coal Canyon wildlife corridor, west of Green River Golf Course on bluff south of the river 122 Comment
  RSA0041601  Phacelia distans Albert J. Perkins 1913-4-22 s.n. Orange Trabuco Canyon. Comment
  RSA650516  Phacelia distans Shlomo Gat 1959-03 20 Orange Santa Ana Canyon. Comment
  RSA759105  Phacelia imbricata Robt. Allen, Genevieve K. Walden, Lisa W. Young 2008-6-26 s.n. Orange Modjeska Peak, W-facing slope within 2 m of the access road up Modjeska Peak. Approximately midway between the peak's south-facing slope and the sharp bend in the extreme N end of the road. 1643 Comment
  HSC13724  Phacelia parryi S. M. Clapp 1966-4-7 15 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  POM49699  Phacelia parryi Helen D. Geis 1902-1 511 Orange Santiago Canyon, Orange County. Comment
  POM8648  Phacelia parryi P. A. Munz, R. D. Harwood 1920-4-24 3780 Orange Sierra [Freemont] Canyon 366 Comment
Read comments Sep 17 2011
  RSA681269  Phacelia parryi Scott D. White, Michael Honer 2003-5-29 9434 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
  CAS-BOT-BC144974  Phacelia ramosissima var. austrolitoralis John Thomas Howell 1927-7-24 2825 Orange Floor of Claymine Canyon, northern Santa Ana Mts. 152 Comment
  RSA562749  Phacelia ramosissima var. latifolia Steve Boyd 1992-5-19 7445 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
  IRVC22183  Phalaris minor Fred M. Roberts 1985-4-11 1642 Orange Dana Point Headlands; Weyerhaeuser Horticultural Research Station property. Southern Coastal 61 Comment
  RSA0027433  Phalaris minor Fred M. Roberts 2013-7-18 7667 Orange San Joaquin Hills: Newport Beach, Buck Gully, along Buck Gully Trail, about 0.7 km from the north terminus of Poppy Street and 1.8 km WNW summit of Pelican Hill. 52 Comment
  UCR97073  Phalaris minor Scott D. White 1993-4-28 1286 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  IRVC19911  Phalaris paradoxa Karlin G. Marsh 1983-5-29 s.n. Orange Irvine Ranch on ridge between South and Bommer cyns. Southern Coastal Comment
  IRVC21804  Phalaris paradoxa B. L. Parry, Fred M. Roberts 1985-5-21 141 Orange San joaquin Hills: Central Moro Cyn, Crystal Cove St Pk, 3.5km S of Signal Peak, 1.7km NE of El Morro Sch. Southern Coastal 20 Comment
  RSA781939  Phoenix canariensis Mark A. Elvin 2003-2-23 2318 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  LA205660  Pholistoma auritum var. auritum A. M. Johnson; 1934-4-15 4418 Orange Laguna Beach Comment
  CAS-BOT-BC413831  Phoradendron leucarpum subsp. macrophyllum Andrew Townesmith; Karen M. Meyer; Tracy Scott 2007-3-11 675 Orange Cleveland National Forest. Off Long Canyon Road, NW of intersection with Route 74 752 Comment
  RSA0061169  Phyla nodiflora Robt. Allen, Trish Smith, Mike Kahle 2006-10-27 s.n. Orange Santa Ana Mountains region: Foothills along Santiago Creek, north side of Irvine Regional Park. 174 Comment
  RSA759260  Phyla nodiflora Robert Allen, Vicky Malton, Raul Murillo Jr. 2008-5-11 s.n. Orange Lomas de Santiago, Whiting Ranch Wilderness Park. Along Santiago Ranch Road. 436 Comment
  RSA683932  Phyllospadix scouleri E. Yale Dawson 1957-2-14 16149 Orange Laguna Beach, Orange County Comment
  RSA683962  Phyllospadix torreyi N. C. Cooper 1942-11-8 890 Orange Laguna Beach. Comment
  RSA683970  Phyllospadix torreyi E. Yale Dawson 1956-12-2 15646 Orange Corona del Mar, Station no 9, 230-260 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
  RSA684065  Phyllospadix torreyi E. Yale Dawson 1958-1-5 18117 Orange E side of Crystal Cove. Station no 42. 140-150 ft from shore base point. Comment
  UC813911  Phyllospadix torreyi F. R. Fosberg July, 1928 S 1525 Orange Laguna Beach Comment
  UC570695  Physalis crassifolia Herbert L. Mason 1926-4-25 2933 Orange 5 mi s of Laguna Comment
  RSA759536  Pickeringia montana var. tomentosa Robert Allen, Nancy Heuler 2007-5-19 s.n. Orange San Juan Trail, circa 3.1 air miles below (SW of) trailhead at southern edge of Blue Jay Campground, circa 1.6 air miles above (NE of) trailhead at Hot Springs Canyon. 782 Comment
  RSA549230  Picris echioides Scott D. White 1992-9-23 843 a Orange Vicinity of Olinda, near city of Brea, immediately N of Carbon Cyn Rd & E of Placentia Ave.; ca. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  CAS-BOT-BC76994  Pilularia americana H. H. Tracy 1935-4-10 s.n. Orange North of Costa Mesa Comment
  UC545832  Pilularia americana H. H. Tracy 1935-4-10 Orange n Costa Mesa Comment
  MACF019826  Pinus attenuata T. Pringle 1966-5-20 124 Orange In Ranch Santa Ana, at the end of Orangethorpe Ave. Yorba Linda in full sun. Comment
  SD13290  Pinus attenuata Carl B. Wolf 1934-12-21 Orange Santa Ana Mountains, saddle northwest of Sugarloaf Peak (Pleasants Peak), south slope of main ridge, 1.3 mile south of summit of Skyline Drive 1160 Comment
  UCSB41932  Pinus coulteri Ramirez, Richard 1971-3-29 Orange About 8 mi. inland on Saddleback Canyon Rd., from Tucker Wildlife Sanctuary Comment
Read comments May 8 2015
  CDA38703  Pinus halepensis D. G. Kelch 2006-12-9 6 .553 Orange Newport Bay, Back Bay Dr. betweeen marsh and steep bluff. Comment
  SD236116  Pinus halepensis A. C. Sanders, Fred M. Roberts 2008-9-18 36082 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  SD236117  Pinus halepensis A. C. Sanders, Fred M. Roberts 2008-9-18 36082 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  RSA539395  Pinus radiata Fred M. Roberts, Carol A. Roberts 1988-11-3 4163 Orange Santa Ana Mtns.: Upper Trabuco Canyon near Main Divide Truck Trail, 1.3km NE Los Pinos Peak 1268 Comment
  UCR193465  Piptatherum miliaceum A. C. Sanders, T. B. Salvato 2008-5-13 35352 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
  UCSB48027  Piptatherum miliaceum Roberts, Fred 1980-7-7 Orange Santa Ana Mts.; San Juan Canyon, Calif. Rte. 74, 2.2 km. ENE San Juan Guard Station; 0.6 km. W Bench Mark 1100 305 Comment
  RSA716096  Plagiobothrys acanthocarpus Fred M. Roberts, Melissa Ervin 2001-3-21 5385 Orange San Joaquin Hills: Upper San Canyon, c..a. 2km SE French Hill, within the Shady Cyn. Development. 98 Comment
  UC881311  Plagiobothrys acanthocarpus Alice Eastwood and John Thomas Howell 1937-4-24 3934 Orange Dana Point Comment
  RSA733873  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-4-8 34742 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UCR191345  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-4-8 34742 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA696205  Plagiobothrys collinus var. californicus Minor Warne 1934-3-10 s.n. Orange Wash near El Toro Comment
  RSA542654  Plagiobothrys nothofulvus Fred M. Roberts 1988-4-10 3903 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  RSA0045607  Plagiobothrys nothofulvus Keith E. Hoffmaster 1935-2-9 840 Orange Santa Ana Mts., El Toro. Comment
  SBBG63887  Plagiobothrys nothofulvus E. Rockwell -Feb-1920 59 b Orange Santiago Cyn 365 Comment
  RSA666092  Planodes virginica Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5430 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. 226 Comment
  SD181425  Plantago coronopus Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, 2001-4-4 1121 a Orange Anaheim Bay: Seal Beach U.S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  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
  RSA759  Plantago erecta J. T. Howell 1928-3-17 868 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA764441  Plantago erecta Doris Bowers 1971-4-19 1684 Orange Black Star Canyon Indian Site 762 Comment
  UC28039  Plantago erecta C. W. Hamlin 1820-1 10 Orange Buena Park Comment
  RSA730990  Plantago lanceolata Fred M. Roberts 2006-11-15 6464 Orange Santa Ana Cyn., 1.0 km ENE Imperial Hwy bridge, between La Palma Ave. and Santa Ana River near Big Springs St. 89 Comment
  RSA698380  Plantago lanceolata C. H. Mueller 1932-6-2 s.n. Orange Cor. Almond + Pine-Orange along roadside. 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
  UCR102035  Plantago major B. G. Pitzer 1997-4-15 3151 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
  UCR137450  Plantago major Scott D. White, Brian Leatherman 1997-6-12 5334 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  CAS-BOT-BC92244  Platystemon californicus D. E. Breedlove 1962-3-9 1799 Orange 4.4 miles east of San Juan Capistrano on State 74. 112 Comment
  CAS-BOT-BC92245  Platystemon californicus Carl B. Wolf 1932-3-14 2713 Orange Rancho Santa Ana Botanic Garden, near the Chrysothamnus beds. 192 Comment
  CAS-BOT-BC356094  Plecostachys serpyllifolia R. E. Riefner, Jr. 2009-7-18 09 -151 Orange City of Dana Point, beach near Salt Creek, vicinity of Ritz Carlton Resort 2 Comment
  SD218281  Plecostachys serpyllifolia R. E. Riefner Jr. 2006-7-26 06 319 Orange City of Irvine, north side of Irvine Blvd. at SR 133 on ramp. Comment
  SD218289  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-12-23 08 381 Orange City of Laguna Beach, Mountain Rd. at Pacific Coast Highway. 21 Comment
  RSA751411  Plecostachys serpyllifolia R. E. Riefner Jr. 2006-7-26 06 -319 Orange City of Irvine, along N side of Irvine Blvd. at SR 133 on-ramp. 62 Comment
  RSA131096  Pluchea odorata E. K. Balls, E. R. Blakley 1958-10-15 23721 Orange In Narrow Canyon E oif Laguna Canyon, S side Santa Cruz Island. 5 Comment
Read comments Jun 27 2013
  UCR150568  Pluchea purpurascens Scott D. White, Matt Carlton 2003-11-20 9871 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  LA203865  Pluchea sericea J. A. Ewan; 1932-7-9 7488 Orange Santa Ana River, 4 mi. below Rincon Comment
  UC1070061  Pluchea sericea A. Lewis Mar 1934 333 Orange Santa Ana Canyon Corona Quad. 121 Comment
  IRVC1624  Poa annua E. McRae 1965-3-30 s.n. Orange Corna del Mar High School. Newport Beach Comment
  RSA685929  Poa annua Fred M. Roberts 2003-3-27 5628 Orange Rancho Mission Viejo:Donna O'Neill Land Conservancy, Chistianitos Canyon, along North Ride Trail, 1.37 km N Sycamore Gate, 0.36 km W Chistianitos Rd. 114 Comment
  SD144113  Poa annua Scott D. White 1993-3-5 1115 Orange Tustin, Marine Corps Ait Stn: SE of Red Hill Ave and NE os Barranca, roadsides 14 Comment
  UCSB47947  Poa fendleriana Roberts, Dar 1980-5-3 Orange .6 km East by S.E. of Los Pinos Spring, on Main Divide Truck Trail 1000 Comment
  IRVC19543  Poa pratensis R. L. Allen 1983-1 s.n. Orange Irvine: near NE corner of Culver at Irvine Blvd. Southern Coastal Comment
  IRVC20648  Poa scabrella Charles W. Sexton 1973-3-29 s.n. Orange Newport Beach, Upper Newport Bay, hillside beside Back Bay Rd. Southern Coastal Comment
  IRVC24561  Poa secunda Fred M. Roberts 1986-4-11 2782 Orange San Juan Canyon, Hwy 74, 1.2km SSW Lower San Juan Picnic Ground, Santa Ana Mountains 378 Comment
  UCR191666  Podocarpus gracilior Robert DeRuff 2006-1 565 Orange South Coast, Upper Newport Bay, Back Bay Drive, c. 0.1 km from Eastbluff Drive 8 Comment
  CAS-BOT-BC225238  Polemoniaceae E. W. Lathrop 1974-6-27 7420 Orange Trabuco Oaks, Trabuca Canyon, Cleveland Nat'l Forest 396 Comment
  CLARK-A1528-919  Polygonum aviculare Patricia A. Andrews 1975-6-26 5916 Orange Capistrano Bay Beach 9 Comment
  UCR193820  Polygonum aviculare A. C. Sanders, Fred M. Roberts 2008-7-16 35866 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  UCR96858  Polygonum aviculare Scott D. White 1993-4-28 1284 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  UCR99858  Polygonum aviculare Scott D. White 1993-3-5 1126 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  RSA466307  Polygonum coccineum J. Ewan 1931-7-31 4754 Orange Wesefall near Hungtinton Beach. Comment
  UCR150564  Polygonum hydropiperoides Scott D. White, Matt Carlton 2003-11-20 9868 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  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
  RSA751267  Polygonum lapathifolium A. C. Sanders, Fred M. Roberts 2008-7-16 35872 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon. 358 Comment
  UC729856  Polygonum lapathifolium Carl B. Wolf 1932-7-7 3835 Orange Bixby Ave. 100 ft w Hansen Road; Bryant Ranch Comment
  IRVC20324  Polypodium californicum Fred M. Roberts 1982-12-10 848 Orange Laguna Beach: Upper Park Canyon, west flank of Temple Hill, 1.8km NEof Thurston School, 0.8km WNW of Top of the World School. Southern Coastal 240 Comment
  POM12349  Polypodium californicum P. A. Munz 1921-4-16 171 Orange Laguna Beach. Comment
  RSA689928  Polypodium californicum Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  UCSB62524  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Laguna Beach, Aliso Canyon, ca. 100 yards up canyon from Aliso Beach parking area, Hwy 101. 45 Comment
  IRVC3040  Polypodium californicum B. Reynolds 1965-4-19 HS0573 Orange Newport Beach; Upper Newport Bay. Southern Coastal Comment
  CAS-BOT-BC237266  Polypogon monspeliensis John Thomas Howell 1927-6-21 2570 Orange On N side of Santa Ana Canon [Canyon] 152 Comment
  CLARK-A1528-4840  Polypogon monspeliensis John C. Roos 1949-10-1 4674 Orange Doheney Beach 1-3 Comment
  IRVC12897  Polypogon monspeliensis B. T. Gittins 1966-11-25 1704 Orange Silverado Canyon: 2 miles above historical marker. Santa Ana Mountains Comment
  IRVC14816  Polypogon monspeliensis A. S. Boughey 1968-7-9 399 Orange Upper Santiago Canyon. Santa Ana Mountains Comment
  IRVC15372  Polypogon monspeliensis J. B. Anderson 1966-4-22 607 Orange San Joaquin Hills: Los Trancos Canyon, along dirt road and near spring. Santa Ana Mountains 122 Comment
  IRVC1813  Polypogon monspeliensis C. Hooven 1965-4-10 s.n. Orange Spruce and Palisades (sic). southern coastal Comment
  IRVC22900  Polypogon monspeliensis Fred M. Roberts 1985-6-12 1903 Orange Laguna Niguel: Alicia Pkwy, 2.1km by road SW La Paz Rd., 1.0km W Sulphur Creek Reservoir. Southern Coastal 67 Comment
  JEPS70690  Polypogon monspeliensis L. M. Booth 1932-5-12 1044 Orange Newport Bay Comment
  RSA697712  Polypogon monspeliensis J. Russell Bruff 1930-10-19 s.n. Orange Santa Ana River bed. Comment
  UCR16076  Polypogon monspeliensis N. J. Moriarty 1973-5-20 730520- 6 Orange Huntington Beach, 0.4 miles south of Newland Street on the east side of Pacific Coast Hwy Comment
  UCR220032  Polypogon monspeliensis 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
  UCR99548  Polypogon monspeliensis B. G. Pitzer 1996-4-30 2799 B Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  CAS-BOT-BC237511  Polypogon viridis L. R. A. 1901-6-1 1805 Orange Santiago Peak trail Comment
  POM1140  Polypogon viridis Le Roy Abrams 1901-06 1805 Orange Santiago Peak trail. Comment
  POM202525  Polypogon viridis L. M. Booth 1932-6-7 1163 Orange Newport Lagoon. Comment
  SEINET182351 Image available Polypogon viridis Lawrence M. Booth 1932-6-7 1163 Orange Newprt Lagoon. Comment
  SEINET10959318  Polypogon viridis LeRoy R. Abrams Abrams s.n. Orange Santa Ana River, Santa A. Comment
  IRVC176  Polystichum imbricans Mike Munier 1965-4-20 HS 545 Orange Costa Mesa. Southern Coastal 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
  IRVC27726  Populus fremontii subsp. fremontii Mark A. Elvin 2004-5-2 3430 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA603349  Populus trichocarpa Scott D. White, B. Leatherman 1997-6-12 5327 Orange East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi. E of I-15 / Hwy 74 jtn. 46 Comment
  RSA588881  Potamogeton foliosus Fred M. Roberts, D. Bontrager 1990-6-5 4674 Orange Rancho Mission Viejo: Upper Gabino Canyon, 3.7km ESE Point Rancho Survey Market. 245 Comment
  UC217958  Potamogeton pectinatus P. A. Munz 1922-9-2 6348 Orange Laguna Canyon 45 Comment
  RSA613774  Prunus caroliniana B. Pitzer, M. Georgiady 1997-4-5 3078 Orange San Joaquin Hills Crystal Cove State Park, along No Dogs Trail (from parking area, along western bottom edge of ridge between Muddy Canyon and Moro Canyon), to just below intersection with Poles trail 152 Comment
  RSA0126623  Pseudognaphalium californicum Fred M. Roberts 2012-4-24 7506 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
  SBBG119614  Pseudognaphalium leucocephalum F. M. Roberts 2003-7-24 5963 Orange San Juan Crk, ca. 0.1 km NE of La Novia Bridge, San Juan Capistrano 27 Comment
  UCR222661  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2008-8-5 08- 259 Orange Peninsular Range; Santa Ana Mtns., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, lower Fremont Canyon, main drainage 223 Comment
  UC1922340  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-3-21 07 -157 Orange City of San Juan Capistrano, vicinity of Calle Arroyo/Paseo Esteban at San Juan creek. Comment
  UCR193493  Pseudognaphalium luteoalbum A. C. Sanders, T. B. Salvato 2008-5-13 35358 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  CAS-BOT-BC356983  Pseudognaphalium luteoalbum Alice Eastwood 1936-4-5 s.n. Orange Bixby Botanic Garden, Santa Ana Comment
  UC520305  Pseudognaphalium ramosissimum Joseph Andorfer Ewan 1932-7-28 7689 Orange Corona del Mar Comment
  UCSB52899  Pseudognaphalium stramineum Roberts, Jr., Fred 1983-5-4 Orange Laguna Beach; upper Rancho Laguna Canyon, 1.7 km. SSW Top of the World School; 1.4 km. ENE Cactus Point 200 Comment
  IRVC1817  Pseudosasa japonica V. Riley 1967-2-21 Orange Balboa Island. southern coastal Comment
  RSA741703  Pseudotsuga macrocarpa Richard E. Riefner Jr. 2008-6-3 08 -134 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, E fork Fremont Canyon, Black Star SCE Rd. 646 Comment
  UCR201597  Pseudotsuga macrocarpa June Latting, F. Shropshire 1972-4-28 s.n. Orange Peninsular ranges/ Santa Ana Mountains, Silverado Canyon, 6.3 mi from Silverado Forest Station [presumably up canyon from Silverado] at 'S' curve in road 1220 Comment
  RSA587887  Psilocarphus brevissimus Fred M. Roberts 1990-5-7 4612 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  UCR158022  Psilocarphus brevissimus Adrian Wolf 1998-7-1 417 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
  RSA599408  Psilocarphus tenellus R. E. Riefner 1997-4-15 97 -128 Orange San Clemente State Beach, south bluff area 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
  SD245373  Psoralea macrostachya Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49564 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along creek. Comment
  IRVC3171  Pteridium aquilinum var. pubescens T. Baskin 1965-4-29 Orange Doheney St. Pk. Dana Point or Capistrano Beach Comment
  RSA392941  Pterostegia drymarioides Albert J. Perkins 1913-4-27 s.n. Orange Trabuco Canon. Comment
  RSA698490  Pterostegia drymarioides R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  UCR149385  Pulicaria paludosa Scott D. White, Matt Carlton 2003-11-20 9863 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  UCR174206  Pulicaria paludosa A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33059 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
  UCR186137  Pulicaria paludosa T. B. Salvato, Katie Kurtz 2006-10-15 1923 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  UCR53764  Pulicaria paludosa Bonnie Busenberg, W. Wisura 1987-7-23 4170 Orange Newport Bay at junction of Back Bay Drive and San Joaquin Hills Road Comment
  UCSB52444  Pulicaria paludosa Roberts, Fred; Ferren, Wayne 1982-7-21 Orange Newport Beach; Upper Newport Backbay, near jct. of Back Bay Dr. and San Joaquin Hills Rd., 2.6 km. E Newport Harbor High School Comment
Read comments Dec 12 2018
  UCR188933  Punica granatum Robert DeRuff 2007-11-24 s.n. Orange Newport Beach, Upper Newport Bay, lower Big Canyon near Back Bay Drive 3 Comment
  RSA573294  Pycnanthemum californicum Steve Boyd, T. S. Ross 1994-9-14 8351 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucus Canyon Trail crossing. 311 Comment
  RSA12361  Quercus X grandidentata E. R. Johnson 1934-1-6 5561 Orange Santa Ana Mts., on slopes of Sierra Peak at about the head of Claymine Canyon. 762 Comment
  CAS-BOT-BC61813  Quercus agrifolia C. B. Wolf 1931-3-6 1832 Orange 1.5 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  IRVC22517  Quercus agrifolia var. agrifolia Fred M. Roberts 1985-4-30 1677 Orange Laguna Beach: Temple Hill; at margin of "Dripping Springs Canyon"; 0.4km NNE Top of the World School. Southern Coastal 255 Comment
  RSA751190  Quercus agrifolia var. agrifolia A. C. Sanders 2008-7-3 35684 Orange Upper Weir Canyon, along Windy Ridge Road at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  RSA638960  Quercus chrysolepis Valerie L. Soza, LeRoy Gross 1999-6-7 485 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA584719  Quercus dumosa Fred M. Roberts, Wade 1989-6-21 4391 Orange San Joaquin Hills; Los Trancos Canyon, 1km E summit of Pelican Hill. 98 Comment
Read comments Oct 16 2013
  SEINET12031055  Quercus dumosa S. A. Thompson, Rawlins, J. E. 1988-1 5259 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  RSA684303  Quercus engelmannii Fred M. Roberts, David E. Bramlet 2003-3-13 5597 Orange Donna O'Neill Land Conservancy: Shady Cyn. tributary to Cristianitos Canyon, 1,200m NW Sycamore Gate and 914m W Cristianitos Rd. 177 Comment
  UCD46641  Quercus kelloggii G. A.; K. G. Marsh 1976-12-15 s.n. Orange Santa Ana Mts: Silverado Truck Trail, 0.2 mi N of Main Divide junction. Comment
  UCR231344  Quercus wislizeni A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39934 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1152 Comment
  RSA598966  Rafinesquia californica Scott D. White 1997-3-28 4838 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 Comment
  UCR209061  Rafinesquia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35049 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slopes of south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado 488 Comment
  POM296378B  Ranunculus californicus Lyman Benson 1947-4-27 12338 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  POM6265  Ranunculus hebecarpus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2630 Orange Santa Ana River Canyon. Comment
  IRVC1130  Raphanus raphanistrum L. McCabe 1965-4-17 Orange Laguna Canyon. Laguna Beach Comment
  RSA0023267  Raphanus sativus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49780 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR186423  Rauvolfia samarensis Robert DeRuff 1996-4-28 492 Orange Southern Coast, Newport Beach, Newport Back Bay, along Backbay Dr., 0.6 mi. north of Big Canyon 2 Comment
  UCR188929  Rauvolfia samarensis Robert DeRuff 2007-11-24 s.n. Orange Newport Beach, Upper Newport Bay, above Back Bay Drive in the vicinity of the Narrows, c. 0.8 km north of Big Canyon 26 Comment
  CDA25895  Rhamnus alaternus Mark A. Elvin, D. G. Kelch 2006-12-9 5300 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  SEINET3075984 Image available Rhamnus californica Reid Moran 1975-7-18 725 Orange Common in bottom of upper Trabuco Canyon, Santa Ana Mountains. 725 Comment
  RSA734887  Rhamnus californica subsp. californica A. C. Sanders 2008-5-28 35441 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  UC592828  Rhamnus californica subsp. californica Carl B. Wolf and E. R. Johnson 1933-11-3 Orange base of Silverado Motorway Santa Ana Mts., Silverado Canyon 731 Comment
  RSA716719  Rhamnus crocea Fred M. Roberts 2004-6-16 6055 Orange San Joaquin Hills: Temple Hill, slopes above Hobo Cyn., adj. to 591 Balboa Ave.; 1.0km NNE Golf Island Survey Mark. 175 Comment
  CAS-BOT-BC56039  Rhamnus ilicifolia C. B. Wolf 1931-3-6 1845 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope of the Santa Ana Mts. 457 Comment
  RSA5340  Rhamnus ilicifolia B. D. Stark 1933-1-4 4492 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  RSA638962  Rhamnus ilicifolia Valerie L. Soza, LeRoy Gross 1999-6-7 483 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA790661  Rhamnus ilicifolia Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49703 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  SBBG27250  Rhamnus ilicifolia C. B. Wolf, E. R. Johnson 1933-11-3 Orange Silverado Cyn at base of Silverado Motorway 731 Comment
  SBBG52716  Rhamnus ilicifolia C. Davidson 1977-5-18 5620 Orange Bear Springs, Santa Ana Mtns 121 Comment
  UCR193004  Rhamnus ilicifolia A. C. Sanders, Mitch Provance 2008-5-20 35403 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  POM9767  Rhamnus ilicifolia P. A. Munz 1921-2-26 4681 Orange Brea Canyon. 305 Comment
  IRVC68  Rhus integrifolia A. S. Boughey, P. Pembrook 1965-7-16 1011 Orange Los Trancos Canyon, near spring, ; chaparral. San Joaquin Hills Comment
  RSA0073655  Rhus integrifolia Fred M. Roberts 2010-3-12 7184 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
  RSA678717  Rhus integrifolia Fred M. Roberts, Laura Cohen 2000-3-24 5271 Orange Rancho Mission Veijo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 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
  UCR193787  Rhus integrifolia A. C. Sanders, Fred M. Roberts 2008-7-3 35693 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  UCR230234  Rhus integrifolia Dick Newell, Don Millar 2011-3-22 092 Orange Peninsular Range; Santa Ana Mtns., entrance gate to Weir Canyon, 1/3 mile NW of Outdoor Education Center, 2.4 miles NW (309 deg. ) of Irvine Lake dam 173 Comment
  UCR37790  Rhus integrifolia Steve Boyd, L. LaPre 1981-5-27 s.n. Orange Santa Ana Mtns., Northern end of the Santa Ana Mtns., along powerline road on ridges east of Weir Canyon & at the head of Gypsum Canyon. Comment
  SEINET12235089  Rhus integrifolia Unknown 1933-1 8218 Orange Back of LaGuna Beach Comment
  SEINET12240101  Rhus laurina S. A. Thompson, Rawlins, J. E. 1988-8-27 5257 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  CAS-BOT-BC167929  Rhus ovata B. Pitzer; S. Hemstreet 1992-5-27 1960 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 mi. (airline) W of El Cariso Campground 762 Comment
  RSA444  Rhus ovata J. T. Howell 1927-7-26 481 Orange Claymine Canyon near Sierra Peak. 213 Comment
  RSA696478  Rhus ovata Anonymous 1933-5-6 s.n. Orange Black Star Canyon [county not specified] Comment
Read comments Jun 10 2012
  SEINET5642638  Rhus ovata Shelby J. Wood 2013-3-6 6 Orange Laguna Hills.; 0 Comment
  SEINET6669779 Image available Rhus ovata T. C. Arambula 1966-1 35 Orange Silverado Canyon Comment
  OBI20443  Rhus ovata Elisabeth Norland 1941-11-5 11185 Orange Nursery Lahthouse in falt 732 Comment
  RSA543964  Ribes indecorum Steve Boyd, Orlando Mistretta 1991-5-9 6195 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  LA205476  Ribes malvaceum var. viridifolium W. Pequegnat; 1938-4-3 sn Orange Santa Ana Mountains, Trabuco Canyon Comment
  UC2042139  Ribes malvaceum var. viridifolium R. F. Thorne and C. W. Tilforth, E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  RSA184097  Ribes speciosum I. L. Wiggins 1966-2-25 20472 Orange Firestone Boy Scout Reservation in hills E. of Brea. Comment
  SBBG54070  Ribes speciosum Townsend 1939-12-29 166 Orange upper Telegraph Cyn Comment
  RSA797435  Ricinus communis Keith E. Hoffmaster 1935-2-17 s.n. Orange Near Costa Mesa Comment
  JEPS51547  Romneya coulteri John Thomas Howell 1927-7-22 2833 Orange Santa Ana Mountains, Claymine Canyon Claymine Canyon; Santa Ana Mountains, Claymine Canyon 182 Comment
  RSA658201  Romneya coulteri T. A. Daubert 1991-5-19 656 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island. Comment
  UCD96083  Romneya coulteri H. M. Hall 1913-5-28 9401 Orange Santiago Canon. 182 Comment
  UCR23130  Romneya coulteri Sue Damon 1981-5-31 32 Orange One half mile SW of intersection of Peralta Hills Dr. and Cerro Vista Rd 335 Comment
  CAS-BOT-BC92180  Romneya coulteri var. coulteri Helen D. Geis 1902-5-1 s.n. Orange Santa Ana River Canon [Canyon]. Comment
  RSA446207  Romneya coulteri var. trichocalyx Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. Comment
  POM7014  Rosa californica Philip A. Munz, L. T. Street, G. Williams 1919-5-4 2683 Orange Laguna Canyon. Comment
  RSA375  Rosa californica J. T. Howell 1927-6-6 s.n. Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA550606  Rosa californica Fred M. Roberts 1989-4-26 4324 Orange Lower Blind Canyon near mouth, 9.2 km SW Sierra Peak, 1.0 km N Irvine Lake spillway. 207 Comment
  UCR141339  Rubus discolor Robert DeRuff 1990-6-3 397 Orange Southern Coast, Newport Beach, Newport Back Bay, Big Canyon, bank below the Newporter Apartments 8 Comment
  RSA699216  Rubus ursinus R. H. McArthur 1934-2-27 s.n. Orange Santa Ana River at 1st Street Comment
  UCR193809  Rubus ursinus A. C. Sanders, Fred M. Roberts 2008-7-16 35833 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, canyon c. 0.12 mi. below Dripping Spring, c. 7.5 mi. ESE of Tustin 360 Comment
  UCSC000946  Rubus ursinus Peter Kamb 1948-6-19 1089 Orange Santa Ana Mts., Holy Jim Canyon 610 Comment
  RSA0035069  Rubus vitifolius K. Kneen 1933-4-8 s.n. Orange Pacific Palisades. Comment
  RSA681861  Rumex acetosella Scott D. White, Michael Honer 2003-6-12 9540 Orange Southwestern Santa Ana Mtn. Foothills: Rancho Mission Viejo. Upper end of Trampas Canyon. 152 Comment
  RSA39335  Rumex acetosella E. L. Paddock 1943-5-26 12741 Orange Near Santa Fe Railway 1/8 mile east of Northam Station. Buena Park. Comment
  CAS-BOT-BC421795  Rumex conglomeratus Carl B. Wolf 1932-7-2 3823 Orange Carbon Canyon, 1/8 mi. below La Vida Springs. 213 Comment
  RSA5814  Rumex conglomeratus Carl B. Wolf 1932-6-28 3806 Orange Bryant Ranch: Edge of field on Bixby Ave. 9 Comment
  UCR99558  Rumex crispus B. G. Pitzer 1996-4-30 2804 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  POM201758  Rumex crispus L. M. Booth 1932-5-12 s.n. Orange Newport Bay. Comment
  UCR107444  Rumex maritimus B. G. Pitzer, M. Georgiady 1997-4-5 3084 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  POM186339  Rumex maritimus Joseph A. Ewan 1932-7-29 7734 Orange Lagoon in back of Newport Beach, above Tule marsh. Comment
  RSA65452  Rumex maritimus F. W. Peirson 1924-8-29 s.n. Orange 3 miles from Balboa Beach. Comment
  POM201765  Rumex salicifolius L. M. Booth 1932-7-4 s.n. Orange Newport Lagoon. Comment
  RSA610241  Rumex salicifolius Fred M. Roberts, Tony Bomkamp 1997-3-13 4984 Orange Rancho Mission Viejo: Christianitos Canyon near confluence of Gabino Canyon, 5.1km NE Clemente Survey Mark. 85 Comment
  RSA65365  Rumex salicifolius J. T. Howell 1927-7-5 7689 Orange Rancho Santa Ana, Santa Ana River Canyon. 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
  UCR173934  Rumex salicifolius A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33054 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA383650  Ruppia maritima V. Newsom 1932-7-4 16946 Orange Laguna - Aliso canyon, Orange County Comment
  SEINET5471003 Image available Ruppia maritima James Henrickson 1970-7-24 5023 Orange 3 mi. NW of Huntington Beach- Inner Bolsa Bay- froming very dense stand along margins of bay. Comment
  UCR141340  Ruta graveolens Robert DeRuff 1997-1 502 Orange Southern Coast, Newport Beach, Newport Back Bay, Upper Big Canyon 14 Comment
  RSA478908  Salicornia bigelovii F. R. Fosberg 1931-8-19 7286 Orange Newport Bay. 0 Comment
  UCSB13412  Salicornia pacifica Whittington, M. 1962-4-20 Orange South side of back Newport Bay about one mile south of saltworks, Newport Comment
  JEPS73723  Salicornia subterminalis L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2046 Orange just s. Bolsa Chica State Park (Salt Marsh (s. end of Bolsa Bay)); Bolsa Bay Comment
  UCR112761  Salicornia subterminalis A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23340 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  UCR14054.1  Salicornia subterminalis Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  RSA232235  Salicornia virginica James Henrickson 1970-7-25 5036 Orange 3.5 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along PCH; at sea level. 0 Comment
  RSA254977  Salicornia virginica C. W. Tilforth 1975-9-6 1046 Orange Northeast shoreline of Upper Bay, Newport Beach. Comment
  RSA33609  Salicornia virginica N. C. Cooper 1942-11-9 887 Orange Balboa. Comment
  RSA478904  Salicornia virginica Albert J. Perkins 1917-10-14 s.n. Orange Salt marsh at mouth of Aliso Canyon. Comment
  UCR158157  Salicornia virginica Adrian Wolf 1998-5-27 341 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
  RSA478901  Salicornia virginica Anstruther Davidson 1907-09 1780 Orange Newport. Comment
  OBI5926  Salix exigua Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Cyn 120 Comment
  POM182044  Salix exigua Carl B. Wolf 1932-7-7 3845 Orange Bixby Ave., 1 km. W of Hansen road near town of Los Alamitos. 8 Comment
  POM362552  Salix exigua Albert J. Perkins 1920-6-12 s.n. Orange Near Serra. Comment
Read comments Nov 1 2013
  RSA0042767  Salix exigua Fred M. Roberts 2012-7-18 7675 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill. 37 Comment
  RSA4496  Salix exigua Carl B. Wolf 1932-3-16 2714 Orange Santa Ana River bottom, Rancho Santa Ana (between pear and walnut groves). 122 Comment
  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
  SD1027  Salix exigua var. hindsiana Carl B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  UC492355  Salix exigua var. hindsiana Carl B. Wolf 1932-4-15 2953 Orange near Santa Ana R. Rancho Santa Ana (along river s of pear orchard); Santa Ana Canyon 120 Comment
  UC492440  Salix exigua var. hindsiana Carl B. Wolf 1932-7-7 3843 Orange near town of Los Alamitos (Rancho Santa Ana along ditch on Bixby Ave., 1 km. w of Hansen Rd., Bryant Ranch) Comment
  CAS-BOT-BC108131  Salix gooddingii L. R. Abrams 1901-6-1 1763 Orange Santa Ana River west of Santa Ana Comment
  CAS-BOT-BC108133  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  CAS-BOT-BC108136  Salix gooddingii Le Roy Abrams 1903-4-16 3256 Orange Santa Ana River, near Orange Comment
  CAS-BOT-BC108138  Salix gooddingii John Thomas Howell 1927-7-14 2772 Orange Santa Ana River bottom, Santa Ana Canyon [Canon] 152 Comment
  LA208663  Salix gooddingii Carl B. Wolf; 1932-4-8 2950 Orange Santa Ana Canyon, Rancho Santa Ana, near Santa Ana River, at SE corner of pear orchard in Botanic Garden 36 Comment
  RSA137  Salix gooddingii J. T. Howell 1927-7-24 394 Orange Santa Ana River bottom near Rancho Santa Ana. 152 Comment
  RSA5308  Salix gooddingii B. D. Stark 1933-1-7 4509 Orange Rancho Santa Ana, river bottom below ranch houses. 122 Comment
  RSA6449  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon, at southeast corner of pear orchard. 120 Comment
  SJSU207  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange SE corner of pear orchard, Rancho Santa Ana, near R, Santa Ana Canyon 137 Comment
  UCR100182  Salix gooddingii Scott D. White 1993-5-5 1109 Orange Marine Corps Air Stn: SE of Red Hill Ave and NE of Barranca 15 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
  RSA0030838  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange Rancho Santa Ana, near Sant Ana River, Sasnta Ana Canyon. 120 Comment
  CAS-BOT-BC108204  Salix hindsiana Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  LA208698  Salix laevigata Carl Hedin; Joseph Ewan 1933-3-19 7684 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  PASA2674  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  RSA357007  Salix laevigata Robert F. Thorne 1975-4-6 45570 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  UC492485  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange near Santa Ana River, at s.e corner of pear orchard Rancho Santa Ana; Santa Ana Canyon, Rancho Santa Ana 120 Comment
  UC506445  Salix laevigata Carl Hedin and Joseph Ewan 1933-3-19 7686 Orange Comment
  UC506455  Salix laevigata Carl Hedin and Joseph Ewan 1932-7-9 7680 Orange 8 km. below Prado (Rincon) (Santa Ana River); Santa Ana River Comment
  UCR138398  Salix laevigata Scott D. White, Brian Leatherman 1997-6-12 5323 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  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
  POM122787  Salix lasiolepis Marcus E. Jones 1926-3-10 s.n. Orange Near Santa Ana Canyon. Comment
  POM362784  Salix lasiolepis Louis C. Wheeler 1934-1-14 2365 Orange Aliso Creek near Laguna. 76 Comment
  UCR102629  Salix lasiolepis B. G. Pitzer 1997-4-15 3152 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
  UCR193009  Salix lasiolepis A. C. Sanders 2008-5-28 35444 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCSB47979  Salix lasiolepis Roberts, Fred 1980-2-17 Orange Along Camino Capstrano road, 1.0 km south of Avary Parkway, southern Mission Viejo 48 Comment
  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
  RSA737855  Salix lucida subsp. lasiandra R. E. Riefner 2008-5-20 8 -108 Orange Irvine Ranch Reserve, North Irvine Ranch, S Donaldson Ranch ca. 0.75 mi along West Fork of upper Fremont Canyon. 405 Comment
  CAS-BOT-BC126312  Salix sessilifolia Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  CAS-BOT-BC403758  Salpichroa origanifolia E. L. Paddock 1943-5-28 12744 Orange Little Tia Juana Campsite, sunny hills Ranch, Fullerton Comment
  RSA783248  Salsola J. D. Olmsted 1959-9-22 983 Orange Along industrial waste waters bank from 3 miles clay works just N of Hwy 8-9 miles WSW of Corona, N of Santa Ana Mts. to Santa Ana River 140 Comment
  UCR197705  Salsola australis A. C. Sanders, Fred M. Roberts 2008-9-18 36080 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  UCR199271  Salsola australis R. E. Riefner Jr. 2006-11-14 06- 672 Orange South Coast, Irvine, along San Diego Creek at Campus Avenue and University Drive 4 Comment
  CDA25746  Salsola tragus A. C. Sanders, Fred M. Roberts 2008-9-18 36080 Orange Peninsular Range; Santa Ana Mountains Foothills; Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. Comment
  RSA270  Salsola tragus J. T. Howell 1927-7-27 499 Orange Near ranch houses, Rancho Santa Ana 152 Comment
  RSA542480  Salvia apiana Fred M. Roberts, G. A. Marsh, K. G. Marsh 1988-4-26 3941 Orange San Joaquin Hills: Pelican Hill, 0.5km SE summit. 165 Comment
  RSA562812  Salvia apiana Steve Boyd, T. S. Ross 1992-5-20 7484 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building). 350 Comment
  RSA658204  Salvia apiana T. A. Daubert 1991-5-19 660 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  HSC14342  Salvia columbariae J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  RSA0127603  Salvia columbariae Fred M. Roberts 2016-3-25 8033 Orange San Joaquin Hills: Bommer Canyon, west slope near south end fo Nature Loop Trail, 0.1 km NW Cattle Camp and 1.6 km NE summit of Signal Peak. 146 Comment
  RSA401440  Salvia columbariae M. B. Dunkle 1933-3-5 3079 Orange San Juan Canyon 305 Comment
  RSA542482  Salvia columbariae Fred M. Roberts, Teresa Sholars 1988-3-29 3881 Orange Santa Ana Mountains: Hot Springs Canyon, 0.5 km by road north Hwy 74, 0.9 km ESE Juan Rancho Survey Marker. 223 Comment
  RSA733974  Salvia columbariae Keith E. Hoffmaster 1927-4-8 423 Orange Santa Ana Mountains. Comment
  RSA434097  Salvia leucophylla M. B. Dunkle 1933-5-30 3567 Orange Carbon Canyon Comment
  SD72780  Salvia leucophylla F. R. Fosberg 1931-6-19 S 5157 Orange Carbon Canyon, Puente Hills. Comment
  CAS-BOT-BC229979  Salvia mellifera John Thomas Howell 1927-6-8 2460 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 213 Comment
  RSA550593  Salvia mellifera Fred M. Roberts 1989-4-26 4321 Orange Santa Ana Mtns.: Lower Blind Canyon near mouth, 9.2km SW Sierra Peak, 1.0km N Irvine Lake spillway. 213 Comment
  UCR230238  Salvia mellifera Dick Newell, Don Millar 2011-3-15 087 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
  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
  UCR83406  Salvia mellifera Jan West 1994-4-5 s.n. Orange Upper Bluebird Canyon, SE of Laguna Beach, at a park in the hills east of the head of Bluebird Canyon Road and east of housing developments. Comment
  UCSB47582  Salvia mellifera Roberts, Fred 1980-4-3 Orange San Juan Canyon;, HWY 74; 0.4km NNE Lower San Juan Picnic Ground; Santa Ana Mountains 420 Comment
  RSA724121  Salvinia molesta Richard E. Riefner 2005-9-30 5 -700 Orange City of Huntington Beach, Huntington Central Park at Goldenwest St. 1 Comment
  RSA0043352  Sambucus mexicana David Barrios 1991-5-8 26 Orange 1500 ft. northwest of Fairmont Ave and Quail Cir., Yorba Linda. 365 Comment
  RSA3157  Sambucus mexicana C. B. Wolf 1931-7-24 2292 Orange lower end of Carbon Canyon. 152 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
  UCR177691  Sambucus mexicana Fred M. Roberts 2003-5-1 5684 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.60 km SSW Gato Gate and 0.16 km west of Cristianitos Rd. 93 Comment
  RSA747631  Sambucus nigra Fred M. Roberts 2008-5-8 6944 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  RSA542457  Samolus parviflorus Fred M. Roberts, Kathy Keane 1988-5-25 3987 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Mark. 82 Comment
  UCR205956  Sanicula arguta Scott D. White 2003-3-21 8813 Orange Peninsular Range/Santa Ana Mtns, Foothills [above] Rancho Mission Viejo; E-facing slopes above an unnamed tributary to San Juan Creek 183 Comment
  RSA263760  Sanicula crassicaulis E. W. Lathrop 1970-1-28 7128 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat l Forest. 396 Comment
  UCR97818  Sanicula crassicaulis Scott D. White 1997-3-28 4832 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  RSA802286  Sanicula menziesii Keith E. Hoffmaster 1937-4-25 753 Orange Ladd can., Santa Ana Mts. PR8. Comment
  RSA609760  Sarcocornia pacifica L. C. Wheeler 1946-9-28 6384 Orange Newport Bay. Comment
  JEPS27447  Sarcostemma cynanchoides subsp. hartwegii John Thomas Howell 1927-7-24 2819 Orange Santa Ana Canyon, Rancho Santa Ana 152 Comment
  SD122678  Satureja chandleri Reid Moran 1979-5-9 27197 Orange Locally common on north slope, San Juan Canyon, Santa Ana Mountains (mak 10/07) 380 Comment
  SD41969  Satureja chandleri Darley F. Howe 1947-4-29 1555 Orange San Juan Creek Comment
  UCR175518  Satureja chandleri Mark A. Elvin, A. C. Sanders 2005-9-2 4499 Orange Peninsular Ranges, Santa Ana Mtns: Mouth of Lion Canyon, just upstream from Lower San Juan Campground 457 Comment
  RSA729933  Schefflera actinophylla A. C. Sanders, Mark Elvin 2006-12-22 33275 Orange South Coast: Irvine, UCI campus SW of intersection of Jamboree Blvd. and Campus Dr., just outside entrance to UCI Herbarium 15 Comment
  RSA734917  Schinus molle A. C. Sanders, Fred M. Roberts 2008-6-17 35473 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  CAS-BOT-BC243418  Schismus barbatus Ira L. Wiggins 1966-2-19 20458 Orange Hillside on W side of road, Carbon Canyon about 220 m. SW of Orange County Survey bench mark RCE 7872 Comment
  UCR192493  Schismus barbatus A. C. Sanders, Fred M. Roberts 2008-3-25 34561 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 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
  SD127867  Schoenoplectus americanus Richard Marin 1971-5-11 M 71 81 Orange Corner of MacArthur Blvd. and University Drive, Irvine. (IPB 11/07) 0 Comment
  CAS-BOT-BC111264  Schoenoplectus californicus Mrs. M. T. Bradshaw 1901-11-1 s.n. Orange Orange, Orange County. Comment
  CHSC26101  Schoenoplectus californicus James Henrickson 1970-7-24 4985 Orange 2 miles NNW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  RSA234484  Schoenoplectus californicus James Henrickson 1970-7-25 5070 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March 0 Comment
  RSA697525  Schoenoplectus californicus Minor Warne 1934-5-13 s.n. Orange Talbert Drainage. Comment
  RSA91  Schoenoplectus californicus J. T. Howell 1927-6-30 243 Orange Bryant Ranch near Long Beach. 15 Comment
  POM50488  Schoenoplectus tabernaemontani Helen D. Geis 1902-11 s.n. Orange Unspecified. Comment
  IRVC29809  Scirpus californicus Laura D. Lyons, Mark A. Elvin 2006-9-23 423 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  UCSB48201  Scirpus microcarpus Roberts, Fred 1981-6-26 Orange Santa Ana Mtns.; San Juan Canyon; 0.1 km. N Lower San Juan Picnic Ground 390 Comment
  RSA0135521  Scirpus robustus David E. Bramlet 2005-7-1 3889 Orange Upper Newport Bay, west side of the Bay approximately 61m east of the end of Mariners Drive. Some 611m NW of the Big Canyon area. 0 Comment
  RSA733713  Scrophularia californica Kenneth Beard 1934-05 s.n. Orange Ladd Canyon. Comment
Read comments Oct 31 2011
  UCR102628  Scrophularia californica B. G. Pitzer 1997-4-15 3148 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
  RSA650906  Scrophularia californica Diane T. Liggett 1981-5-16 4 Orange Riverside Freeway (91) east to Imperial Hwy, South to Nohl Ranch Road, east to Serrano Ave., south on Hidden Cyn. Road., .6 km into Weir Cyn. Comment
  RSA749356  Scrophularia californica subsp. floribunda Fred M. Roberts 2008-4-22 6919 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn.,along Haul Rd. near asphalt plant, 2.2 km ENE Rattlesnake Reservoir dam and 2.2 km WNW Bee Peak, Irvine Ranch Conservancy. 188 Comment
  RSA723967  Secale cereale R. E. Riefner 2004-5-1 04 -154 Orange City of Irvine; Jeffrey Rd. near Bryan Rd. 73 Comment
  CAS-BOT-BC61962  Selaginella John Thomas Howell 1927-6-26 2611 Orange Claymine Canyon, n. Santa Ana Mts. 457 Comment
  RSA678518  Selaginella asprella Fred M. Roberts, Kirsten Winter, Leanne Naue 1997-6-5 5041 Orange Santa Ana Mtns.: Modjeska Peak, above Main Divide Truck Trail, 0.5km (aerial) W summit. 1483 Comment
  IRVC3587  Selaginella bigelovii A. S. Boughey 143 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  RSA301980  Selaginella bigelovii James R. Shevock 1970-12-20 573 Orange Silverado Canyon 579 Comment
  SEINET179622 Image available Selaginella bigelovii J. T. Howell 1927-7-22 2834 Orange Claymine Canyon Santa Ana Mtns 183 Comment
  IRVC25398  Selaginella cinerascens Fred M. Roberts 1987-4-3 3339 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
Read comments Oct 17 2017
  UCSB56506  Senecio aphanactis Marsh, K. 1978-3-16 Orange U.C. Irvine Ecological Preserve: Hill #1 51 Comment
  CAS-BOT-BC363480  Senecio californicus P. C. Everett 1935-3-15 6294 Orange Rancho Santa Ana, Santa Ana Canyon near Corner Post 3938 182 Comment
  RSA17008  Senecio californicus P. C. Everett 1936-3-19 7733 Orange Santa Ana Botanic Garden. 183 Comment
  RSA650644  Senecio californicus D. E. Bramlet 2000-4-7 2948 Orange Upper Blind Canyon. The site is found beside the SCE maintenance road and 762m west of the mainstem of Blind Canyon. This locality is 1.7km east of Weir Canyon. 354 Comment
  IRVC901  Senecio flaccidus var. douglasii E. Cowper 1965-4-9 Orange [Newport] Back Bay. Newport Beach Comment
  RSA700498  Senecio linearifolius Scott D. White 2004-6-7 10606 Orange S Coast; Laguna Miguel. Along Pacific Island Dr. 61 Comment
Read comments Oct 23 2007
  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
  CAS-BOT-BC364601  Senecio vulgaris Ira L. Wiggins 1966-3-4 20490 Orange Shoulder of Peralta Avenue, near junction of Newport Freeway and Riverside Highway Comment
  CAS-BOT-BC364603  Senecio vulgaris Ira L. Wiggins 1966-3-31 20569 Orange Shoulder of Associated Road, 200 m. S of Imperial Highway, Fullerton Comment
  SD247606  Senecio vulgaris R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49646 Orange Northeern Santa Ana Mountains; Coal Canyon (NW of Sierra Peak). Comment
  SEINET11237911 Image available Senna marilandica Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7080 Orange Yorba Linda, Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave 113 Comment
  RSA5954  Sesuvium verrucosum C. B. Wolf 1932-7-7 3847 Orange Bryant Ranch, 100 ft. N of Bixby Ave. & 7/10 miles W of Hansen road., (100 ft. N & 2/10 mi. W of SE corner of NE 1/4 of NW 1/4 of sect. 34 T4S R11W) Comment
  RSA724100  Setaria adhaerens R. E. Riefner 2004-8-8 4 373 a Orange City of Anaheim, Santa River bottom near 57-Freeway between Orangewood St. and Chapman Ave. 41 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-BC243593  Setaria parviflora Miss. H. D. Geis 1902-5-1 s.n. Orange Santa Ana Comment
  RSA6048  Setaria parviflora C. B. Wolf 1932-6-13 3725 Orange Fullerton, Rose Drive 53 Comment
  SD245216  Setaria parviflora R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49619 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station. Dry, rocky bluffs above San Juan Creek. Comment
  CAS-BOT-BC240116  Setaria sphacelata Ira L. Wiggins 1965-9-26 20266 Orange Just south of Letters and Science Building, California State College at Fullerton Comment
  RSA0028739  Setaria verticilliformis R. E. Riefner Jr. 2004-12-12 4 -554 Orange City of Irvine, near Irvine Valley College, strawberry fields along Jeffrey Road near Irvine Center Drive. 37 Comment
  UCR236682  Setaria viridis Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7104 Orange Peninsular Ranges, Santa Ana River Canyon: Yorba Linda Regional Park adjacent to Santa Ana River, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river 87 Comment
  JEPS67287  Sidalcea neomexicana Alice King June, 1908 Orange betw Santa Ana and Newport; betw Santa Ana and Newport Comment
  CAS-BOT-BC205741  Sidalcea neomexicana subsp. thurberi I. Johnston 1917-5-30 1127 Orange Chino Creek south of Ontario 152 Comment
  CAS-BOT-BC205743  Sidalcea neomexicana subsp. thurberi LeRoy Abrams 1903-4-17 3257 Orange Between Tustin and Myford Comment
  POM156679  Silene antirrhina L. R. Abrams 1903-4-18 3272 Orange Trabuco arroyo, near San Juan Capistrano. Comment
  SD241797  Silene antirrhina Mark A. Elvin 2003-3-30 2384 Orange South Coast: north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73. 46 Comment
  POM202105  Silene gallica L. M. Booth 1932-5-12 1016 Orange Newport Bay. Comment
  RSA650328  Silene gallica Diane T. Liggett 1981-5-16 7 Orange Riverside Freeway (91) east to Imperial Hwy, south to Nohl Ranch Road, east to Serrano Ave., south on Hidden Cyn. Road, 1 km into Weir Cyn. Comment
  UCSB47971  Silene gallica Roberts, Fred 1980-2-17 Orange Dana Bluffs; along Scenic Drive Rd.; NW and above Dana Point Harbor, Dana Point 58 Comment
  CAS-BOT-BC174885  Silene laciniata Munz; Street; Williams 1919-5-3 2671 Orange Santa Ana River [Canon] Canyon Comment
  RSA704077  Silene laciniata D. E. Bramlet 2004-5-27 3595 Orange Donna O Neill Reserve. Southwest corner of the reserve, just east of the Telaga development. The site is 1.43km west of Cristianitos Rd. and 1.37km north of Pico. 183 Comment
  UCR16182  Silene laciniata Kenneth Hibberd 1966-5-8 660508- 2 Orange Santa Ana Mountains, Modjeska Canyon, 2 mi. north of the El Toro Road [S18] junction 396 Comment
  IRVC20496  Silene laciniata subsp. major Fred M. Roberts 1983-5-4 1026 Orange Temple Hill, Upper Rancho Laguna Canyon, 1.7km SSW Top of the World Sch.; 1.4km ENE Cactus Point, Laguna Beach 200 Comment
  RSA175135  Silene laciniata subsp. major R. F. Thorne 1963-7-26 32842 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Santa Ana Mountains, Cleveland National Forest. 762 Comment
  UCR232770  Silene multinervia Robt. L. Allen, Trisha Smith, Mike Kahle 2006-6-21 s.n. Orange Peninsular Range; Santa Ana Mtns., upper Fremont Canyon, ridge along SE, along unpaved Lakeview Rd. 638 Comment
  UCR150906  Silene verecunda subsp. platyota Valerie Soza, LeRoy Gross 1999-6-10 514 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1524 Comment
  UCR227633  Silene verecunda subsp. platyota Robt. L. Allen 2003-6-22 12380 Orange Santa Ana Mountains, Modjeska Peak, southwestern arm, 0.6 air mi southwest of the summit 1512 Comment
  IRVC906  Silybum marianum B. Savage 1963-5-15 Orange Newport Beach Comment
  IRVC1181  Sisymbrium irio B. Mawdsley 1965-4-5 Orange between Laguna Beach and San Clemente. Pacific Coast Hwy Comment
  CAS-BOT-BC75237  Sisymbrium irio Ira L. Wiggins 1966-2-12 20430 Orange North side of La Palma Avenue near Harbor Boulevard, Anaheim. Comment
  RSA184172  Sisymbrium irio I. L. Wiggins 1966-2-12 20430 Orange N. side of La Palma Ave. near Harbor Blvd., Anaheim. Comment
  HSC7000  Sisymbrium officinale S. M. Clapp 1966-4-7 28 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  RSA789587  Sisymbrium officinale R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49659 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  IRVC1189  Sisymbrium orientale D. Pfirrmann 1965-4-21 Orange 2179 Orange Ave. Costa Mesa Comment
  UCR230834  Sisymbrium orientale Dick Newell, Don Millar 2011-6-18 177 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon, just north of the Lake Irvine dam 204 Comment
  HSC13926  Sisyrinchium bellum S. M. Clapp 1966-4-10 32 Orange 4 mi. into Black Star Canyon 183 Comment
  RSA0127338  Sisyrinchium bellum Fred M. Roberts 2016-3-17 8020 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
  RSA699166  Sisyrinchium bellum G. Gentges 1932-3-27 s.n. Orange Above Irvine Park. In Santiago Canyon. Comment
Read comments Dec 6 2011
  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
  UCR256944  Sisyrinchium bellum Naomi Fraga 2009-5-11 2716 Orange Santa Ana Mountains, Cleveland National Forest, San Juan Loop Trail just west of Sugarloaf Spur Trail 912 Comment
  RSA234565  Solanum americanum James Henrickson 1970-7-25 5046 Orange 2.5 miles NE of Huntington beach, 1 mile SE of Warner Ave. on sandy slope of E. Pacific Coast Hwy. at border of Bolsa Chica Salt Marsh. 0 Comment
  RSA682757  Solanum americanum Scott D. White, Amanda Duchardt 2003-3-27 8851 Orange Santa Ana Mountain Foothills: Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA79906  Solanum americanum F. W. Peirson 1924-2-9 4523 Orange Between Wintersberg and the sea. Comment
  UCSB17923  Solanum americanum Gerhart, Janet 1963-2-22 Orange Trabuco Canyon, 1/2 miles above locked gate on dirt road, 17.5 miles east of U.S. Highway 101 at El Toro Marine Base 396 Comment
  RSA549241  Solanum douglasii Scott D. White 1992-9-29 845 -a Orange Vicinity of City of Brea, immediately N of Carbon Canyon Road and E of Placentia Avenue, +/- 1 mi (airline) S/SE of Tonner Canyon. 183 Comment
  UC12096  Solanum douglasii Lawrence M. Booth 1932-5-19 1075 Orange Newport Bay Comment
  UC494729  Solanum douglasii Philip A. Munz 1932-3-29 12190 Orange Costa Mesa Comment
  UCD126938  Solanum douglasii B. Pitzer 1996-4-30 2762 Orange Upper Newport Bay: California Department Fish and Game Ecological Reserve, off (W of) Jamboree Rd. 6 Comment
  UCR137188  Solanum douglasii M. B. Dunkle 1933-3-5 3093 Orange Southern Coast, San Juan Canyon 305 Comment
  HSC21302  Solanum douglasii D. W. Snell 1964-3-27 27 Orange 1 mi. S of Brea Reservoir on Reservoir Rd. 120 Comment
  UCSB41752  Solanum douglasii Rowlands, Peter 1970-3-6 Orange Trabuco Cyn.; approx 2 mi up cyn from O'Neil Park 396 Comment
  POM311835  Solanum lanceolatum Karen Hosterman 1957-1-19 825 Orange Laguna Beach City, near cultivated area. 11 Comment
  SD43527  Solanum rostratum E. Johnson 1946-8-22 11531 Orange sandy river bottom, Rancho Santa Ana, Santa Ana Canyon 399 Comment
  CAS-BOT-BC156711  Solanum umbelliferum C. B. Wolf 1931-3-6 1850 Orange 1/2 [milea] miles below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  HSC21322  Solanum umbelliferum S. M. Clapp 1966-4-7 19 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  HSC25250  Solanum umbelliferum R. W. Spjut 1972-2-21 2215 Orange Santa Ana Mts., Cleveland Nat'l Forest, along Hwy. 74 305 Comment
  RSA507482  Solanum umbelliferum Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment
  RSA733735  Solanum umbelliferum Jeanne Paxton 1934-2-25 s.n. Orange Sugar Loaf Canyon, Arch Beach Comment
  RSA80386  Solanum umbelliferum F. W. Peirson 1925-4-10 5737 Orange In Silverado Canyon. 610 Comment
  UCSB18243  Solanum umbelliferum Daniel, Dick 1964-3-28 Orange Silverado Canyon Road, 5.1 miles NW from junction with Santiago Canyon Road, approximately 10 miles W of Irvine Lake, 17 miles by air E of Orange 365 Comment
  UCSB52472  Solanum umbelliferum Roberts, Fred 1983-1-7 Orange Laguna Beach: Park Canyon along west flank of Temple Hill, 1.7km NE Thurston High School; 1.7km SE Bench Mark 104 205 Comment
  RSA788807  Solidago californica R. F. Thorne 1977-11-21 49980 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  UCR194991  Solidago californica A. C. Sanders, Fred M. Roberts 2008-8-7 35998 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, 1.15 mi. (air) SSE of Walnut Canyon Reservoir 225 Comment
  LA204214  Solidago spectabilis P. P. Kennedy; 1912-8-2 1889 Orange Hunter Creek 1828 Comment
  RSA793260  Sonchus oleraceus R. F. Thorne 1984-1 s.n. Orange Newport Back Bay Comment
  UCR26160  Sonchus oleraceus John C. Roos 1949-10-1 4686 Orange South Coast, Doheny Beach 0 Comment
  UCD136209  Sonchus oleraceus Ira L. Wiggins 1965-11-6 20334 Orange west side of Atwood. Comment
  HSC10988  Sorghum halepense D. W. Snell 1964-3-24 7 Orange 1 mi. E of Brea on Birch St. Comment
  IRVC1830  Sorghum halepense I. L. Wiggins 1965-9-26 20 257 Orange Roadside about 1.5mi above the mouth of Carbon Canyon. southern coastal Comment
  RSA699061  Sparganium eurycarpum Minor Warne 1934-5-17 s.n. Orange Greenville Drainage. Comment
  RSA305846  Spartina foliosa James R. Shevock 1972-9-27 2286 Orange Newport Back Bay, Orange County 2 Comment
  UCR240099  Spartina foliosa Dick Newell 2012-9-29 297 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 2 Comment
  SEINET10452464  Spartium junceum James S. Miller 1992-5-8 Miller 7449 Orange 2 mi E of the border of Cleveland National on California route 74. 310 Comment
  IRVC367  Spergula arvensis E. P. Cowper 1965-4-11 Orange [Newport] Back Bay, Bayside Dr. Newport Beach Comment
  RSA801710  Spergula arvensis D. M. McF 1953-4-3 s.n. Orange Irvine Coast G.C. Corona Del Mar. Comment
  UCR157693  Spergularia Adrian Wolf 1998-5-15 277 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  RSA0097853  Spergularia bocconi Scott D. White, Brian Leatherman 1997-6-12 5339 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e. ca. 2-4 miles E of I-15/Highway 74 junction. 46 Comment
  UCR137445  Spergularia bocconi Scott D. White, Brian Leatherman 1997-6-12 5339 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  CAS-BOT-BC390856  Spergularia marina L. R. Abrams 1917-6-23 6565 Orange Balboa Comment
  UCR12123  Spergularia marina Art Whistler 1966-5-5 s.n. Orange South Coast, Laguna Beach 'near Camp Pendleton Comment
  UCR20401  Spergularia rubra Albert J. Perkins 1926-4-27 s.n. Orange Pacific slope, City of Santa Ana, in a yard. Comment
  RSA478077  Spergularia rubra Albert J. Perkins 1922-5-27 s.n. Orange Dr. Whi...(?) garden Comment
  IRVC24744  Spergularia villosa Fred M. Roberts 1986-4-29 2822 Orange Turtle Rock, above corner of Ridgerout Dr. and Turtle Rock Dr., 1.1km SE French Hill, Irvine 141 Comment
  RSA0098709  Spergularia villosa L. M. Booth 1932-7-18 1266 A Orange Costa Mesa, inland from Newport Bay. 30 Comment
  UCD63552  Sphaeralcea ambigua var. rosacea D. Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel. Dana Point Highlands. Pacific Island Drive. 70 Comment
Read comments Mar 23 2010
  UCR207566  Sporobolus indicus O. F. Clarke 2004-1 s.n. Orange South Coast, Yorba Regional Park, between Yorba Linda and Anaheim Hills 91 Comment
  RSA0028740  Sporobolus indicus R. E. Riefner Jr. 2004-12-12 4 -553 Orange City of Irvine, near Irvine Valley College, strawberry fields along Jeffrey Road near Irvine Center Drive. 37 Comment
  UCR274181  Stachys Dick Newell, Peter Wetzel 2016-6-7 429 Orange Peninsular Range; Santa Ana Mtns., Silverado Canyon, 0.1 mile NE of Blackstar Canyon Rd. intersection, near Silverado Creek 297 Comment
  UC284865  Stachys ajugoides var. rigida P. A. Munz 1923-9-7 7756 Orange trail from Holy Jim Canyon Santiago Peak; Santa Ana Mts. 1310 Comment
  RSA679  Stachys rigida subsp. quercetorum J. T. Howell 1928-4-14 910 Orange Aliso Canyon, Rancho Santa Ana. 229 Comment
  RSA717155  Stachys rigida subsp. rigida Fred M. Roberts, Chris M. Barnhill 2005-9-27 6284 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4 km E Mission San Juan Capistrano. 27 Comment
  CAS-BOT-BC393825  Stellaria media C. B. Wolf 1931-3-6 1854 Orange Trabuco Camp Grounds, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  IRVC370  Stellaria media I. L. Wiggins 1965-6-5 20329 Orange north side of Chapman Ave. near Kraemer Rd.; orange grove, common to very abundant beneath trees, full sun to partial shade. Placentia Comment
  IRVC9287  Stellaria media B. Gittins 1963-3-29 108 Orange corner of Dorothy Lane and State College Blvd. Fullerton Comment
  UCR191016  Stellaria media A. C. Sanders, Fred M. Roberts 2008-4-22 35033 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  RSA184167  Stellaria media I. L. Wiggins 1966-3-1 20484 Orange Orange grove at corner of South Campus Dr. and State College Blvd. Fullerton Comment
  UCR150569  Stenotaphrum secundatum Scott D. White, Matt Carlton 2003-11-20 9867 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  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
  UCR231058  Stephanomeria cichoriacea A. C. Sanders, Kent Beaman 2011-9-27 39916 Orange Peninsular Range; Santa Ana Mtns., 1.7 km NW (307 deg. ) of Santiago Peak along the road 1460 Comment
  UCR240091  Stephanomeria cichoriacea Dick Newell, Judy Booth 2012-10-14 306 Orange Peninsular Range; Santa Ana Mtns., Trabuco Canyon, 2 miles north of Live Oak Cyn. Rd. 457 Comment
  JEPS36878  Stephanomeria diegensis L. M. Booth 1933-10-18 Orange Newport Comment
  RSA684404  Stephanomeria diegensis Scott D. White, Matt Carlton 2003-11-20 9878 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 37 Comment
  SD240904  Stephanomeria diegensis T. B. Salvato 2010-10-27 5129 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Drive and west of Green Lantern Street, overlooking Dan Point Harbor (Dana Point 7.5'Q) 75 Comment
  UCR222876  Stephanomeria diegensis T. B. Salvato 2010-10-27 5129 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  JEPS36839  Stephanomeria exigua subsp. coronaria L. M. Booth 1932-8-5 1361 Orange Newport Bay Comment
  POM201781  Stephanomeria exigua subsp. coronaria L. M. Booth 1932-7-27 1325 Orange Corona del Mar, Newport Beach, Bluff Ravine Comment
  RSA95206  Stephanomeria exigua subsp. exigua F. W. Peirson 1923-3-18 3354 Orange Santa Ana River Canyon 122 Comment
  IRVC21311  Stephanomeria virgata subsp. virgata Fred M. Roberts 1983-12-9 1153 Orange UCI Ecological Preserve, 0.8km SSW campus center, Irvine 70 Comment
  OBI23448  Stipa cernua Unknown 1970-3-23 2166 Orange 2 mi from San Juan Capistrano on State 74 Comment
  UCR190994  Stipa coronata A. C. Sanders, Fred M. Roberts 2008-4-22 35006 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  SD245221  Stipa miliacea R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49569 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along San Juan Creek. Comment
  HSC79001  Stipa pulchra Steve Boyd 1981-5-13 Orange Pelican Hill, Irvine Ranch property in the San Joaquin Hills S of Corona del Mar Comment
  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
  UCR2802  Stipa pulchra F. M. Reed 1927-1 5474 Orange Cliffs at Arch Beach 15 Comment
Read comments Nov 4 2017
  RSA0048676  Stipa pulchra Keith E. Hoffmaster 1935-3-17 551 Orange Near El Toro (Trabuco Road). Comment
  RSA0113483  Stipa pulchra Lyman Benson 1946-5-13 12100 Orange Bluffs at Corona del Mar. 15 Comment
  RSA383489  Stuckenia pectinata Anstruther Davidson 1921-9-1 s.n. Orange Laguna Beach, Orange County Comment
  RSA0011014  Stylocline gnaphaloides Fred M. Roberts 2012-5-10 7570 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  UCR158027  Stylocline gnaphaloides Adrian Wolf 1998-5-15 293 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  RSA171931  Styrax redivivus Robert F. Thorne 1963-7-26 32849 Orange Near Beek's Spring; Tin Mine Canyon; Trabuco District, Santa Ana Mountains, Cleveland National Forest. 716 Comment
Read comments Apr 25 2011
  UCD169760  Styrax redivivus R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49686 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UCSB10703  Styrax redivivus Lloyd, Robert 1959-4-17 Orange 8.5 miles south of West Corona on the Oak Flats Fire Road 883 Comment
  RSA5854  Suaeda calceoliformis C. B. Wolf 1932-6-28 3789 Orange Bryant Ranch, near fence., 100 ft. south of NW corner of NW 1/4 of S.E. 1/4 of sect 27. 9 Comment
  LA204737  Suaeda esteroa Carl B. Wolf; 1934-7-29 6043 Orange Newport Bay Tide Flats 0 Comment
  CAS-BOT-BC110410  Suaeda taxifolia L. R. Abrams 1917-6-25 6557 Orange Balboa. Comment
  POM17616  Suaeda taxifolia P. A. Munz 1923-4-2 7320 Orange Laguna Beach Comment
  POM259532  Suaeda taxifolia A. C. Keller 1938-7-29 s.n. Orange 1/4 mile north of Highway 101 Alter. on east shore of Newport Bay Comment
  POM695  Suaeda taxifolia P. A. Munz 1918-5-5 2179 Orange Laguna Comment
  RSA438588  Suaeda taxifolia N. C. Cooper 1942-11-9 883 Orange Balboa Comment
  RSA438589  Suaeda taxifolia Anstruther Davidson 2990 Orange Newport Comment
  UCR66368  Suaeda taxifolia A. C. Sanders 1990-10-6 10180 Orange South Coast, Newport Back Bay, Westcliff Park area on the southwest end of the bay, c. 1 mile inland from Hwy 1 (Pacific Coast Hwy). 6 Comment