Search Results — 2000 specimen records retrieved (1623 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
  RSA1554  Abronia maritima J. T. Howell 1928-7-10 1087 Orange Capistrano Beach. 0 Comment
  RSA460928  Abronia maritima E. S. Spalding 1923-11-29 s.n. Orange Near San Juan Capistrano Comment
  RSA585055  Abronia maritima D. Atwood 1993-3-28 17715 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. 0 Comment
  RSA461006  Abronia umbellata E. S. Spalding 1923-12-1 s.n. Orange Opposite San Juan Capistrano Comment
  SBBG69894  Abronia umbellata M. N. Ackley 1928-9-22 716 Orange Sunset Beach 8 Comment
  SEINET893157  Abronia umbellata Charles T. Mason Jr. 1943-1 108 Orange Along Coast Highway 101, one miles southeast of Huntington Beach. Comment
  SEINET7067537  Abronia villosa A. G. Vestal 1947-6-12 s.n. Orange Santa Ana River Wash northwest of Orange. Coordinate datum: NAD27. UTM Zone 11, 418667mE, 3739612mN. Comment
  SEINET893740  Abronia villosa P. C. Everett 1935-1 7260 Orange Lower Sonoran. 8/10 miles east of Atwood, south of Railroad tracks. 107 Comment
  POM47584  Abronia villosa var. aurita I. M. Johnston 1924-8-29 s.n. Orange Santa Ana River bed, between Aneheim and Santa Ana. Comment
  POM742  Abronia villosa var. aurita C. F. Baker 1903-4-1 4125 Orange Anaheim Comment
  RSA700927  Abronia villosa var. aurita Keith E. Hoffmaster 1933-4-5 s.n. Orange Near Newport Comment
Read comments
Aug 27 2011
  CDA23153  Acacia cyclops Mark A. Elvin, D. G. Kelch 2006-12-9 5291 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  SEINET10487478  Acacia farnesiana Charlene A. Bennett 1976-7-22 Bennett 443 Orange Cultivated and native plants collected around the San Clemente Beach area. 3 Comment
  UCR239623  Acacia redolens Fred M. Roberts 2012-4-24 7497 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
  CDA3995  Acacia retinodes D. G. Kelch 2006-12-9 6 .554 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  IRVC16141  Acer macrophyllum R. Meinzer, T. Mulroy 1971-4-25 s.n. Orange Santa Ana Mountains: Upper Trabuco Canyon. Peninsular Ranges Comment
  RSA456  Acer macrophyllum J. T. Howell 1927-7-26 478 Orange Claymine Ca - on near Sierra Peak. 244 Comment
  RSA751317  Achillea millefolium A. C. Sanders, Fred M. Roberts 2008-5-6 35271 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  RSA539341  Achnatherum coronatum Fred M. Roberts, Karlin G. Marsh 1989-3-7 4193 Orange Lomas de Santiago: Loma Ridge, Hicks Canyon, 2.3km W Bee Survey Mark., UTM 37 32 200mN, 4 32 900mE 165 Comment
  RSA548853  Achnatherum coronatum Fred M. Roberts, Helen Camp 1987-3-10 3231 Orange Casper's Regional Park: San Juan Canyon, north of Hwy 74, ca. 1.9km WSW San Juan Hot Springs. 335 Comment
  RSA758893  Achnatherum coronatum A. C. Sanders, Fred M. Roberts 2008-4-22 35006 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
  RSA0028970  Achnatherum coronatum Keith E. Hoffmaster 1935-4-14 603 Orange Live Oak can. Comment
  SBBG103893  Acmispon americanus B. Pitzer, S. Hemstreet 1992-5-27 1966 Orange USFS Rd 3S04 to Blue Jay Group Cmpgrd, off St Hwy 74, ca. 2 air mi W of El Cariso Cmpgrd 762 Comment
  LA48030  Acmispon glaber var. glaber A. M. Johnson; 1927-12-30 2760 Orange Laguna Comment
  SBBG120830  Acmispon heermannii var. heermannii A. C. Sanders, F. M. Roberts, M. Balk 2006-7-20 33005 Orange San Juan Cyn from Lower San Juan Picnic Area to ca. 1 mi downstream, parallel to Hwy 74 366 Comment
  SBBG3414  Acmispon heermannii var. heermannii J. M. Tucker 1941-5-30 261 Orange Ortega Hwy, 2 to 3 mi E of western boundary of Cleveland Nat Forest Comment
  UCSB69277  Acmispon maritimus Sanders, A.; Farley, Linda; Roberts, Fred; Bramlet, D. 2008-4-1 Orange Peninsular Range; Santa Ana Mtns.; Lomas de Santiago, upper Hicks Canyon, along haul road, c. 1.75 mi. NE of Rattlesnake Reservoir (El Toro 7.5' Q.) 396 Comment
  RSA699138  Actaea spicata Unspecified s.n. Orange Brook Bank. Comment
  POM122866  Adiantum jordanii Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon Comment
  RSA689447  Adiantum jordanii Scott D. White, Amanda Duchardt 2003-4-10 9009 Orange Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  IRVC21220  Adiantum jordanii Fred M. Roberts 1964-3-9 1247 Orange cyn, 2.9km NE Median Rancho Survey Mark; 1.6km NW Bench Mark 422, Wagon Wheel Regional Park 165 Comment
Read comments
Aug 1 2009
  UC1595640  Agoseris grandiflora Steve Boyd and Orlando Mistretta 1991-5-9 6198 Orange Santa Ana Mountains, crest of range at Oak Flat, SE of Sierra Peak, just W of Riverside County line. Comment
  RSA679216  Agoseris grandiflora var. grandiflora Fred M. Roberts 2003-6-17 5917 Orange Just NE of Falcon roup Camp, 2.1km ESE Los Pinos Peak just west of main road. 1009 Comment
  CAS-BOT-BC13326  Agoseris retrorsa L. R. Abrams 1901-6-15 1845 Orange Santiago Peak Comment
  UCR242709  Agrostis Chris E. True 2013-5-2 s.n. Orange Bommer Canyon, NW of Aliso Viejo 137 Comment
  RSA734668  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-6-17 35490 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  SEINET3916500  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-7-16 35851 Orange Penninsular Range; Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon.; 0 325 Comment
  UCR242117  Agrostis pallens D. E. Bramlet 1983-5-28 1378 Orange South Coastal Plains, Dana Point, SW of Pacifc Coast Highway 73 Comment
  UCR56319  Agrostis pallens Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 Comment
  CDA1694  Agrostis viridis M. K. Bellue, Johnson 1945-5-8 Orange Right and Hazzard, about 1/2 mile south of Garden Grove. 0 Comment
  UCR193762  Agrostis viridis A. C. Sanders, Fred M. Roberts 2008-7-3 35703 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA725525  Ailanthus altissima Fred M. Roberts, Robert L. Allen 2007-9-28 6599 Orange Foothill Trabuco area: Upper Aliso Creek at SE corner of El Toro Road and Valle Vista Way, c.a. 1.8 km NE Upper Oso Reservoir. 308 Comment
  RSA759145  Ailanthus altissima Robert Allen, D. Taylor 2008-7-19 s.n. Orange Eastern arm of Bedford Peak, along North Main Divide Road, 2.2 road miles N of junction with Bedford Road, 5.9 miles N of junction with Maple Springs Road. 1155 Comment
  UCR116052  Albizia lophantha Donna Krucki 2001-2-24 s.n. Orange Peninsular Range; Santa Ana Mtns., Caspers Regional Park; San Juan Canyon near confluence of Hot Springs Canyon, Sitton Peak Truck Trail 213 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
  RSA367034  Allium Marion Verhusen 1946-05 s.n. Orange Santa Ana Canyon. Comment
  RSA573292  Allium ampeloprasum Steve Boyd, Timothy S. Ross 1994-9-14 8349 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Lucas Canyon. 317 Comment
  UCSB52871  Allium haematochiton Roberts, Fred; Marsh, G. 1983-3-30 Orange UC Irvine Ecological Preserve, 0.8 km. SSW UCI campus center 60 Comment
  RSA79414  Allium haematochiton E. K. Balls 1952-5-22 17248 Orange 2 mi. S. of Sierra Peak 610 Comment
  UCSB57138  Allium haematochiton Marsh, G.; Marsh, K. 1978-5-13 Orange Santa Ana Mts; Coal Canyon; Ridge along Main Divide Road, S portion of acreage 731 Comment
  CAS-BOT-BC132051  Allium peninsulare var. peninsulare P. C. Everett; E. R. Johnson 1935-5-29 7092 Orange Santa Ana Mts., Summit of Claymine Canyon 762 Comment
  POM180165  Allium praecox W. D. Baker, Joseph A. Ewan 1930-3-22 s.n. Orange Brea Canyon, one mile above Brea. Comment
  RSA0051391  Allium praecox Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49664 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA70218  Allium praecox F. W. Peirson 1923-3-18 4095 Orange Santa Ana River Canyon 122 Comment
  RSA16496  Allophyllum glutinosum Percy C. Everett 1935-6-18 7211 Orange Santa Ana Mts., summit of Santiago Pk. 1732 Comment
  UC718489  Allophyllum glutinosum Carl B. Wolf 1933-8-24 5399 Orange summit Santiago Peak; Santa Ana Mts. 1731 Comment
  POM177826  Alnus rhombifolia Marcus E. Jones 1930-1-26 26226 Orange Wildwood Camp, Santa Ana River. Comment
Read comments
Nov 18 2013
  RSA184109  Alnus rhombifolia I. L. Wiggins 1966-1 20411 Orange along immediate margin of stream above ranger station, Trabuco Canyon Comment
  UCR231356  Alnus rhombifolia A. C. Sanders, Kent Beaman 2011-9-27 39910 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail, 3.4 km NNW (340 deg. ) of Santiago Peak 1088 Comment
  UCR243182  Alnus rhombifolia Chris E. True 2013-4-22 s.n. Orange Aliso Canyon, Aliso and Wood Canyons Park, south of Aliso Viejo 25 Comment
  RSA562809  Aloe arborescens Steve Boyd, Timothy S. Ross 1992-5-20 7481 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon. 351 Comment
  UCR142295  Alopecurus saccatus D. E. Bramlet 1998-5-17 2618 Orange Fairview Park, City of Costa Mesa; c. 366m N of the intersection of Wilson and Canyon Dr. and 152 m west of the Canyon School, on a mesa overlooking the Santa Ana River 24 Comment
  UCR152756  Alopecurus saccatus D. E. Bramlet 2003-6-8 3462 Orange South Coast, Fairview Park in Costa Mesa, 152 m west of Canyon School and 396 m NW of intersection of Wilson & Canyon Dr. 24 Comment
  RSA798189  Amaranthus albus R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49593 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  POM201929  Amaranthus albus L. M. Booth 1932-5-12 s.n. Orange Newport Bay. Comment
  RSA542440  Amaranthus blitoides Fred M. Roberts 1988-10-21 4162 Orange Irvine: Alton Parkway at corner of Jeffrey Rd., 1.5km NNE French Survey Mark. 35 Comment
  POM201880  Amaranthus hybridus L. M. Booth 1932-7-25 s.n. Orange Santa Ana River, 1 1/2 miles from ocean. Comment
  RSA1306  Amaranthus hybridus J. T. Howell 1928-9-20 1210 Orange Rancho Santa Ana, near ranch houses. 152 Comment
  JEPS54319  Amaranthus retroflexus Lawrence M. Booth 1932-7-25 1307 Orange Santa Ana River, near coast Santa Ana River Comment
  POM202121  Amblyopappus pusillus Philip A. Munz 1934-3-26 13135 Orange Newport Beach. 15 Comment
  RSA93934  Ambrosia acanthicarpa F. W. Peirson 1919-11-8 5275 Orange Road south of Arch Beach. Comment
  RSA643441  Ambrosia chamissonis R. D. Goeden, D. W. Ricker 1970-4-29 s.n. Orange Pacific Coast: Newport Beach, NW edge of town between Seashore Dr., Neptune Ave. 56th and 58th Streets. 2 Comment
  RSA678452  Ambrosia chamissonis Valerie L. Soza, Kenneth Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1115 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UC2030078  Ambrosia chamissonis Valerie Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1115 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. Comment
  UC523553  Ambrosia chamissonis David D. Keck 1933-9-8 2522 Orange Sunset Beach Comment
  RSA696743  Ambrosia confertiflora Kenneth Beard s.n. Orange Wasteland E. of Placentia. Comment
  CAS-BOT-BC45063  Ambrosia psilostachya Ira L. Wiggins 1965-10-18 20272 Orange Vacant lot, NE corner of Chapman Ave. and Victor Dr., Fullerton Comment
  CDA10047  Ambrosia psilostachya D. G. Kelch 2006-12-9 6 .551 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  POM122758  Ambrosia psilostachya Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  POM201785  Ambrosia psilostachya L. M. Booth 1932-7-19 1277 Orange Bolsas Marsh. Comment
  RSA743386  Ambrosia psilostachya Fred M. Roberts 2008-7-10 7066 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  CDA25799  Ammannia coccinea A. C. Sanders, Fred M. Roberts 2008-9-18 36095 Orange Peninsular Range; Santa Ana Mountains Foothills; Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 mile above the highway bridge. Comment
  POM256962  Amorpha californica W. Pequegnat 1940-6-15 s.n. Orange Santa Ana Mountains: Modjeska Flat. 1372 Comment
  CAS-BOT-BC180619  Amorpha californica var. californica P. C. Everett 1935-6-19 7235 Orange 1/2 mi. below (W.) head of canyon, Trabuco Canyon, Santa Ana Mts. 1066 Comment
  RSA3304  Amorpha fruticosa B. D. Stark 1931-10-17 1332 Orange Rancho Santa Ana, Santa Ana Canyon. 137 Comment
  RSA603352  Amorpha fruticosa Scott D. White, Brian Leatherman 1997-6-12 5329 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  UCR138407  Amorpha fruticosa Scott D. White, Brian Leatherman 1997-6-12 5329 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
  UC1191048  Amsinckia intermedia Francia Chisaki 1957-4-3 925 Orange 3 mi s Irvine (Hwy 101) Comment
  UCR222382  Amsinckia intermedia Mark A. Elvin 2003-1-26 2236 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA0089627  Amsinckia intermedia Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. Comment
  RSA184105  Amsinckia intermedia I. L. Wiggins 1966-3-5 20501 Orange Among grasses and weeds on grazed hillside, along hwy S-18, about 4.5 mi. E of Laguna Beach Comment
  UCD119275  Amsinckia intermedia Francia Chisaki 1957-4-3 925 a Orange On Highway 101, ca. 3 miles S of Irvine. Comment
  UCD119709  Amsinckia intermedia Ira L. Wiggins 1966-3-4 20495 Orange Along Riverside Highway, 4.5 mi. E. of Newport Freeway exit. Comment
  IRVC204  Amsinckia menziesii var. intermedia L. Aldis 1965-4-27 Orange Irvine Park Comment
  IRVC9355  Amsinckia menziesii var. intermedia B. T. Gittins 1963-4-21 179-A Orange Newport Back Bay. Newport Beach Comment
  IRVC25566  Amsinckia menziesii var. menziesii Fred M. Roberts 1989-3-17 4212 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 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
  RSA450866  Andropogon glomeratus Gordon Marsh, Karlin G. Marsh 1978-10-11 s.n. Orange Santa Ana Mountains: San Juan Hot Springs. 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
  SD41483  Anemopsis californica Edith A. Purer 1932-8-31 4873 Orange Orange County near Route #101, moist depression in sand Comment
  IRVC26961  Anemopsis californica Peter A. Bowler 2003-4-20 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; in marsh at Nedge of marsh beside UCI Arboretum. Southern Coastal 3 Comment
  RSA247341  Anemopsis californica G. D. Wallace 1966-4-16 472 Orange Ca. 10 mi. N of Camp Pendleton along Hwy 5. Comment
  RSA716663  Anisodontea scabrosa Fred M. Roberts, Amber Oneal 2004-8-18 6097 Orange San Juan Capistrno: Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  RSA4797  Anthemis cotula James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. South East 1/4 Section 25, Township 4S, Range 12 W, Station #1 plant #3. [ or T5S R12W sec.1 SW/4] Comment
  RSA542472  Anthemis cotula Fred M. Roberts 1988-4-14 3926 Orange IRVINE: south of the San Diego Freeway, 1.2 km. ENE French Hill. 41 Comment
  RSA17218  Antirrhinum coulterianum Carl B. Wolf 1936-6-22 s.n. Orange Santa Ana Mtns, 3 miles above FS gate IN Santiago Canyon, along truck trail to Modjeska Peak. 762 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
  UCR192725  Antirrhinum coulterianum A. C. Sanders, Fred M. Roberts 2008-5-6 35225 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  UCR657  Antirrhinum coulterianum Geoffrey Matthews, Jim Hearne, Robin Maetche 1971-5-15 s.n. Orange Peninsular Range; Santa Ana Mtns., 3 mi north of Morrill Valley on Hwy 74 Comment
  POM354854  Antirrhinum coulterianum H. L. Bauer 1929-5-10 s.n. Orange Santa Ana Canyon Comment
  CLARK-A1528-4161  Antirrhinum coulterianum subsp. orcuttianum John C. Roos 1937-5-10 2082 Orange San Juan Capistrano Comment
  UCR175056  Antirrhinum nuttallianum Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  POM184317  Antirrhinum nuttallianum subsp. nuttallianum L. M. Booth 1932-7-4 1260 Orange On permantant dunes back from beach Mouth of Santa Ana River 0 Comment
  UCR203989  Aphanisma blitoides Fred M. Roberts 2008-3-12 6736 Orange South Coast, Dana Point Headlands Center for Natural Lands Mgmt. Preserve, west side, c. 0.8 km west of Marine Institute, Dana Point Harbor 50 Comment
  UCR138386  Apium graveolens Scott D. White, Brian Leatherman 1997-6-12 5314 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
  RSA0031754  Apium graveolens R. F. Thorne 1977-11-21 50820 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UCR241665  Apocynum cannabinum Dick Newell, Judy Booth 2013-5-28 331 Orange Peninsular Range; Santa Ana Mtns., Agua Chinon Wash, 1.12 mi. due west of Bolero Point, Limestone Canyon Rd. 269 Comment
  RSA542587  Aralia californica Fred M. Roberts, R. E. Riefner 1988-7-19 4114 Orange Santa Ana Mountains; Maple Springs Truck Trail, Upper Silverado Canyon, 1.9km N Modjeska Peak. 1128 Comment
  SD254523  Araujia sericifera Eric Focht 2016-7-8 1 Orange South Coast: University of California Research and Extension Center, 7601 Irvine Blvd., Irvine Field 6 (El Toro 7.5'Q) 13 Comment
  LA42394  Arctostaphylos glandulosa W. Pequegnat; 1938-3-19 sn Orange Santa Ana Mountains, Holy Jim Trail 1219 Comment
  RSA629318  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15525 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  RSA629323  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15504 Orange Road to Blue Jay Campground, 1 km south of Hotshot Camp, north of Ortega Hwy. (Hwy. 74). 800 Comment
  RSA629331  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15513 Orange Rd. 6S06, 1km northeast of Blue Jay Campground, north of El Cariso (Hwy 74) 1050 Comment
  SD247631  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49708 Orange Northern Santa Ana Mountains; Sierra Peak. 900 Comment
  UCR281857  Arctostaphylos glandulosa subsp. leucophylla A. C. Sanders, Yi Huang 2017-3-3 42697 Orange Peninsular Range; Santa Ana Mtns., North Main Divide Road, 3.5 km north of Hwy 74 959 Comment
  RSA167732  Arctostaphylos glandulosa subsp. zacaensis R. F. Thorne, John Olmsted 1963-7-26 32838 Orange In Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mts., Cleveland National Forest. 854 Comment
Read comments
Apr 25 2011
  SEINET10449341  Arctostaphylos glandulosa var. glandulosa James S. Miller 2001-12-15 Miller 10653 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
  UCR145984  Arctostaphylos glauca June Latting 1977-1-12 s.n. Orange Chino Hills, Tonner Canyon 213 Comment
  SEINET12524586 Image available Arctostaphylos glauca J. Taylor 1963-1 753 Orange Hills above laguna beach. 122 Comment
  UCD170239  Arctostaphylos otayensis K. M. Meyer; A. Townesmith and T. Scott 2007-3-10 6 Orange Cleveland National Forest, 2 mi. N of Main Divide Rd./NF3S04, off Hwy. 74. 957 Comment
  UCR27108  Argemone munita subsp. robusta T. P. Krantz 1981-6-18 s.n. Orange Santa Ana Mtns, Main Divide Truck Trail near the head of the canyon Comment
  SEINET4085709  Argemone munita var. robusta G. B. Ownbey, F. Ownbey 1954-1 2177 Orange Between Modjesca Peak and Santiago Peak. 1524 Comment
  RSA588884  Aristida adscensionis Fred M. Roberts, D. Bontrager 1990-6-5 4670 Orange Rancho Mission Viejo: Uper Gabino Canyon, near Orange County line, 3.9 kilometers E Point Ranch Survey Marker; UTM Z11 37 10 300m N, 4 52 100m E. 280 Comment
  UCR215291  Aristida adscensionis Fred M. Roberts, D. E. Bramlet 2008-5-13 6953 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  RSA39  Aristida adscensionis var. modesta J. T. Howell 1928-2-7 817 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA0048677  Aristida divaricata Keith E. Hoffmaster 1935-4-14 04 Orange Live Oak Can. Santa Ana Mts. Comment
  RSA542513  Aristida purpurea var. parishii Fred M. Roberts 1987-3-31 3314 Orange Lomas de Santiago: Lomas [Loma] Ridge, Upper Serrano Canyon, east fork, reservoir, 2.2 kilometers SE Bolero Lookout, UTM 37 28 500m N, 4 41 200m E. 406 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
  RSA776  Artemisia biennis J. T. Howell 1927-10-29 784 Orange Bryant Ranch near Long Beach. 15 Comment
  UC111237  Artemisia biennis Theodore W. Minthorn 1907-8-18 7 Orange Laguna Comment
  POM293902  Artemisia biennis Robert M. Muir 1946-10-24 s.n. Orange Midway between Corona del Mar and Santa Ana. Comment
  CDA23141  Artemisia californica R. E. Riefner Jr. 2006-8-25 06 -410 Orange City of Dana Point, Salt Creek Beach Park, vicinity of Dana Strand Road and Selva Road. Comment
  IRVC21707  Artemisia californica Fred M. Roberts, G. A. Marsh 1984-10-16 1419 Orange east bluff, Newport Back Bay, 3.6km W UCI campus center; 0.1km S Camp Survey Mark, Newport Beach 15 Comment
  LA202978  Artemisia californica Joseph Andorfer Ewan; 1932-7-28 7710 Orange above salt marsh flat, E end of Newport Bay Comment
  RSA756323  Artemisia californica A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37191 Orange Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  SEINET10757879  Artemisia californica Andrew Townesmith, Karen M. Meyer; Tracy Scott 2007-3-11 Townesmith 676 Orange Cleveland National Forest. Off Long Canyon Road (Forest Service road 6S05), at mile post 2 (2.0 miles NW of route 74). 967 Comment
  SEINET227962  Artemisia californica Leila M. Shultz 1980-5-2 4040 Orange Orange County: foothills south of Diamond Bar, Chaparral. 213 Comment
  CAS-BOT-BC90267  Artemisia douglasiana John Thomas Howell 1927-8-13 2989 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  CHSC35807  Artemisia dracunculus James Henrickson 1973-10-21 8052 Orange Eastern Anaheim, 2 blocks E of Imperial Hwy along La Palma Ave., just N of Santa Ana River. 60 Comment
  UCR193027  Artemisia dracunculus A. C. Sanders, Fred M. Roberts 2008-6-17 35514 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR247920  Artemisia palmeri Fred M. Roberts 2012-7-18 7669 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill 37 Comment
  LA204707  Arthrocnemum subterminale J. Warren; sn Orange Anaheim Slough 0 Comment
  RSA0059638  Arthrocnemum subterminale Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1107 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  POM48005  Arthrocnemum subterminale I. M. Johnston 1924-8-29 s.n. Orange Corona Del Mar Comment
  RSA0104746  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-6-17 35489 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff s Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261. 357 Comment
  UCR192989  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-6-17 35489 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  UCR193766  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-7-3 35672 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA683219  Asparagus asparagoides Scott D. White, Matt Carlton 2003-11-20 9873 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 37 Comment
  UCR100449  Asparagus asparagoides B. G. Pitzer 1996-4-30 2787 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR141345  Asparagus asparagoides Robert DeRuff 1994-2-24 436 Orange Southern Coast, Newport Beach, Newport Back Bay, below Eastbluff North 9 Comment
  RSA701806  Asphodelus fistulosus Fred M. Roberts 2000-6-5 5337 Orange Yorba Linda, along Hidden Hills Dr. near Sunbeam Lane, on ridge above Box Canyon 376 Comment
  RSA739319  Aspidotis californica Keith E. Hoffmaster 1933-3-2 30 Orange Orange County: Santa Ana Mts Comment
  POM201855  Aster bernardinus L. M. Booth 1933-9-8 1392 Orange Anaheim Marsh. Comment
  POM201791  Aster hesperius L. M. Booth s.n. Orange Newport Beach Comment
  IRVC25156  Aster subulatus var. ligulatus Fred M. Roberts 1986-9-3 3129 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  RSA782  Aster subulatus var. ligulatus J. T. Howell 1927-10-29 775 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA784  Aster subulatus var. ligulatus J. T. Howell 1927-9-24 750 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  IRVC24275  Aster subulatus var. ligulatus Fred M. Roberts, G. A. Marsh 1985-10-26 2525 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  CAS-BOT-BC180453  Astragalus brauntonii B. D. Stark 1933-6-1 4997 Orange Santa Ana Mts., No. slopes of Sierra Peak Comment
  RSA701753  Astragalus brauntonii Elisabeth Landis, Valentin Arvizu, Cliff McLean, Kadest Ketsella 2004-9-6 s.n. Orange Specimen located against wooden cofferdam in wet sand in CalTrans debris basin on S side of 91 Freeway in Coal Canyon. Comment
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Nov 22 2011
  POM21172  Astragalus didymocarpus Helen D. Geis 1902-03 s.n Orange Santiago Creek bed. Comment
  UCR192500  Astragalus gambelianus A. C. Sanders, Fred M. Roberts 2008-3-25 34547 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  SEINET892558  Astragalus leucophyllus Leslie Freeman 1963-1 128 Orange Diamond Bar Ranch in Brea Canyon. Santa Ana Mt. Range. Pacific drainage area. 304 Comment
  UCR234155  Astragalus trichopodus var. lonchus Dick Newell, Don Millar 2012-2-28 229 Orange Peninsular Range; Santa Ana Mtns. Region, Lomas de Santiago, along Hangmans Tree Rd. at Santiago Creek 357 Comment
  UCR203891  Atriplex R. E. Riefner Jr. 2006-10-19 06- 546 Orange city of Lake Forest, c. 0.5 mi north of Alton Parkway on east side of SR-241 230 Comment
  CAS-BOT-BC248871  Atriplex amnicola R. E. Riefner, Jr. 2006-2-12 06 -21 Orange South Coast: N end of City of San Clemente, along N-bound I-5, immediately S of Camino de Estrella exit ramp 66 Comment
  RSA737375  Atriplex amnicola R. E. Riefner 2006-5-7 06 -180 Orange N end of City of San Clemente, along I5, N side, immediately S of Camino De Estrella exit ramp. 66 Comment
  JEPS59563  Atriplex californica L. M. Booth 1932-5-19 1068 Orange Newport Bay Comment
  POM17484  Atriplex californica P. A. Munz 1923-4-1 6912 Orange Laguna Lakes. 61 Comment
  POM293188  Atriplex californica Lyman Benson 1946-5-13 12092 Orange Corona del Mar, Pacfic Ocean drainage area 50 Comment
  RSA542649  Atriplex californica Fred M. Roberts 1988-10-12 4159 Orange San Clemente State Park: c.a. 0.2 km SE end of Ave. California along Santa Fe RR. 3 Comment
  POM47599  Atriplex canescens I. M. Johnston 1924-8-29 s.n. Orange Corona Del Mar Comment
  SD40182  Atriplex canescens Edith A. Purer 1932-8-31 4869 Orange Near Route 101. Comment
  CAS-BOT-BC170195  Atriplex canescens subsp. canescens John Thomas Howell 1927-10-22 3163 Orange In hills on n. side of Santa Ana Canyon. 152 Comment
  IRVC24454  Atriplex canescens subsp. canescens Fred M. Roberts 1985-11-20 2560 Orange Newport Back Bay, near Camp Survey Mark, Newport Beach 2 Comment
  RSA737241  Atriplex glauca R. E. Riefner 2006-3-19 06 /01/1952 Orange City of Newport Beach, near Avocado Ave, and San Nicolas Dr. W of McAthur Blvd. 77 Comment
  RSA741477  Atriplex halimus R. E. Riefner 2008-12-23 8 -375 Orange City of Laguna Beach, S Crescent Bay, Cliff Dr. at Circle Way. 5 Comment
  UCR46556  Atriplex lentiformis B. G. Pitzer, D. C. Hawks 1986-10-21 0354 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, c. 10 mi. east of Santa Ana, along Jeffrey Road in Hicks Canyon, c. 1.5 mi. north of the South Coast Gun Club 274 Comment
  RSA5271  Atriplex lentiformis subsp. breweri B. D. Stark 1932-12-9 1676 Orange Capistrano Beach at Doheny Palisades. Comment
  CLARK-A1528-2529  Atriplex leucophylla John C. Roos 1937-2-23 1307 Orange Laguna Beach Comment
  UC219363  Atriplex pacifica D. L. Crawford 1916-5-5 Orange Laguna Beach Laguna Beach (bluffs along shore, Southern California) Comment
  RSA700320  Atriplex rhagodioides Roger Reinke 2003-2-18 s.n. Orange South Coast: Newport Back bay, Big Canyon 30 Comment
  POM201893  Atriplex rosea L. M. Booth 1932-8-5 s.n. Orange West Newport Beach Comment
  POM47596  Atriplex rosea I. M. Johnston 1924-8-29 s.n. Orange 4 miles S of Santa Ana Comment
  RSA232240  Atriplex rosea James Henrickson 1970-8-29 s.n. Orange 2 iles north of Huntington Beach, along Pacific Coast Highway. ca. 1 3/4 mile SE of Warner Ave. 0 Comment
  UCR222630  Atriplex semibaccata T. B. Salvato 2010-10-27 5105 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
  RSA478406  Atriplex semibaccata N. C. Cooper 1942-11-9 889 Orange Balboa. Comment
  RSA5853  Atriplex serenana C. B. Wolf 1932-6-28 3790 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
  RSA720295  Atriplex suberecta Tom Perring, Tracy Pinkard 1994-3-2 s.n. Orange South Coast: Tustin, Marine Helicopter Station at the corner of Moffett Dr and Hamboree Rd. 11 Comment
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Jul 19 2010
  RSA528044  Atriplex subspicata A. C. Sanders 1990-10-6 10189 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Highway 1. 1 Comment
  RSA65356  Atriplex truncata F. W. Peirson 1924-8-29 5073 Orange 4 miles south of Santa Ana. Comment
  HSC24443  Atriplex watsonii Christopher Davidson 1970-7-27 1502 Orange Bolsa Chica salt marsh, 1 mi. S of Warner Ave., opposite Seal Beach Comment
  RSA65426  Atriplex watsonii F. W. Peirson 1924-2-10 4533 Orange Corona Del Mar Comment
  RSA678508  Atriplex watsonii Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1100 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  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
  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
  UCR193000  Avena barbata A. C. Sanders, T. B. Salvato 2008-5-13 35378 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR99871  Avena barbata Scott D. White 1993-3-5 1114 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  CDA22566  Avena fatua E. McRae 1965-4-8 HS 0068 Orange Costa Mesa. 0 Comment
  RSA697311  Avena fatua Keith E. Hoffmaster 1936-4-14 s.n. Orange Santa Ana Comment
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Nov 20 2011
  UCSB47968  Avena fatua Roberts, Fred 1980-3-3 Orange Hills 1.5 km ENE of Dana Hills High School; Dana Point 85 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
  IRVC18080  Baccharis emoryi Gordon A. Marsh 1980-10-24 Orange Irvine: San Joaquin Frreshwater Marsh, south end, earth dam, pond 4. southern coastal 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
  UCR210317  Baccharis glutinosa A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37201 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  UCSB48035  Baccharis glutinosa Roberts, Fred 1981-9-26 Orange Huntington Beach; Calif. Rte. 1, near mouth of Santa Ana River, 0.1 km. N jct. Brookhurst Ave.; 0.1 km. SW Bench Mark 7 2 Comment
  CAS-BOT-BC99442  Baccharis pilularis B. D. Stark 1933-1-21 4523 Orange San Clemente 91 Comment
  RSA12829  Baccharis pilularis C. B. Wolf 1934-12-26 6262 Orange Hills and ravines near ocean, S end of town of San Clemente 15 Comment
  RSA719421  Baccharis pilularis Fred M. Roberts, Lee Ann Caranza 2006-10-25 6456 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 Comment
  RSA731920  Baccharis pilularis Fred M. Roberts, Sandy Leatherman 2007-11-27 6659 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  UCD129430  Baccharis pilularis B. Pitzer 1997-11-8 3373 Orange Crystal Cove State Park: Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. Open areas adjacent to parking lot. 30 Comment
  UCR66992  Baccharis pilularis A. C. Sanders 1990-10-6 10200 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  IRVC9314  Baccharis pilularis subsp. consanguinea B. T. Gittins 1963-3-8 20 Orange Newport Bay; slope base. Newport Beach Comment
  IRVC27500  Baccharis salicifolia Mark A. Elvin 2004-5-2 3414 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  UCR215309  Baccharis salicifolia Fred M. Roberts, Eliza L. Maher 2008-3-26 6799 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Strands Road gate, 0.8 km west of Marine Institute, Dana Point Harbor 71 Comment
  JEPS21857  Baccharis salicifolia subsp. salicifolia Annette Waters 1958-3-30 161 Orange 3.2 mi ne of, on State Highway 91, 18 Atwood Placentara turnoff Comment
  CAS-BOT-BC106667  Baccharis salicina Peter H. Raven 1957-9-28 11382 Orange In moist spot, salt marshes at north limits of Surfside Comment
  UCD129397  Baccharis salicina Ira L. Wiggins 1965-11-6 20338 Orange Kraemer Oil Estates, near well no. 15, near end of county road constituted by continuation of Orangethorpe Ave. Comment
  UCR207594  Baccharis salicina O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCR240108  Baccharis sarothroides Dick Newell, Don Millar, Riley Pratt, Larry Robbins 2012-9-18 286 Orange Peninsular Range; Santa Ana Mtns., mouth of Black Star Canyon, on Red Rock Ridge Road, 0.25 mi southwest of Baker Canyon Road 288 Comment
  SEINET7003043  Baeria chrysostoma Wanda P. Vestal, A. G. Vestal 1955-3-24 3451 C Orange Bank along road, Trabuco Canyon, about 5 miles east of El Toro. Comment
  CAS-BOT-BC16365  Barbarea orthoceras E. K. Balls 1955-4-4 20427 Orange 2.7 miles southwest from Orange-Riverside County line, along Highway 74, San Juan Capistrano to Elsinore. 304 Comment
  LA105119  Batis maritima Barry A. Prigge; 1988-6-30 8118 Orange eastern edge of Newport Beach, NE of Pacific Coast Hwy bridge over Santa Ana River/Greenville-Banning channels 0 Comment
  UCSB21665  Batis maritima Keefe, Joseph 1967-3-26 Orange West edge of Bolsa Bay, on California Highway 1, 0.4 mile south of junction with Warner Avenue, Sunset Beach 1 Comment
  RSA5334  Bebbia juncea B. D. Stark 1933-1-3 4480 Orange Rancho Santa Ana near pear orchard. 122 Comment
  CAS-BOT-BC106377  Bebbia juncea var. aspera Helen D. Geis 1902-12-6 s.n. Orange Santiago Creek Comment
  SD255114  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
  RSA627788  Beta vulgaris Scott D. White 1998-6-26 6784 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  RSA696877  Bidens laevis J. Russell Bruff 1930-10 s.n. Orange Santa Ana River Bed. Comment
  CAS-BOT-BC128000  Bidens pilosa Ira L. Wiggins 1965-10-24 20287 Orange Bank of storm drain at corner of Yorba Linda and State College Blvds., Fullerton Comment
  UC536947  Bidens pilosa Lawrence M. Booth 1932-7-19 1276 Orange Bolsas Marsh Comment
  CAS-BOT-BC127998  Bidens pilosa Ira L. Wiggins 1965-12-18 20426 Orange upper edge of Hillcrest Park, Fullert6on Comment
  RSA732246  Bloomeria crocea A. C. Sanders, Fred M. Roberts 2008-4-22 34997 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
  SD236124  Bloomeria crocea A. C. Sanders, Fred M. Roberts 2008-5-6 35266 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, slope SE of road junction along ridge road, near head of Aqua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UCR190981  Bloomeria crocea A. C. Sanders, Fred M. Roberts 2008-4-22 34997 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
  UCR192225  Bloomeria crocea A. C. Sanders, Fred M. Roberts 2008-5-6 35266 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  RSA548869  Bloomeria crocea var. crocea Bernard Jaroslow 1989-5-29 B 25 Orange Santiago Canyon: Along the Morrow Trail out of Live Oak Canyon, below truck trail. Comment
  CAS-BOT-BC31013  Bolboschoenus maritimus LeRoy Abrams 1901-6-12 1764 Orange Salt Marsh west of Westminster. Comment
  CAS-BOT-BC31017  Bolboschoenus maritimus Helen D. Geis 1902-3-1 s.n. Orange Peat Lands Comment
  UCSB36205  Bolboschoenus maritimus Ferren, Wayne; Whitmore, S. 1980-8-27 Orange Along tidal ditch, in salt marsh of Newport Backbay; just W of Backbay Drive; ca. 3 km. NE of Rt. 1, Newport Beach Comment
  SD127868  Bolboschoenus maritimus subsp. paludosus Richard Marin 1971-5-11 M 71 80 Orange Corner of MacArthur Blvd. and University Drive, Irvine 0 Comment
  UCR100445  Bolboschoenus maritimus subsp. paludosus B. G. Pitzer 1996-4-30 2772 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UC536806  Bolboschoenus robustus Lawrence M. Booth 1932-5-24 1105 Orange Newport Lagoon Comment
  RSA702687  Bothriochloa barbinodis Scott D. White, Michael Honer 2004-5-17 10396 Orange City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  RSA735168  Bothriochloa barbinodis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35281 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCD56817  Bothriochloa barbinodis F. M. Reed 1926-4-10 6583 Orange North of Dana Point. Comment
  UCR190974  Bothriochloa barbinodis A. C. Sanders, Fred M. Roberts 2008-4-22 35003 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
  UCR192080  Bothriochloa barbinodis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35281 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  CAS-BOT-BC95400  Bowlesia incana Scott D. White; Noel Davis 1998-4-24 6339 Orange Mission Viejo Area: Aliso Creek watershed, E of El Toro Rd., N of jct. with Valley Vista Way 500 Comment
  JEPS12252  Bowlesia incana Lawrence 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
  CAS-BOT-BC420395  Boykinia rotundifolia R. J. Smith 1903-6-1 79 Orange Mill Creek and Santa Ana River 914 Comment
  RSA734975  Brachychiton populneum A. C. Sanders, Fred M. Roberts 2008-6-17 35479 Orange Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  CDA22564  Brachypodium distachyon J. B. Anderson 1966-4-22 615 Orange San Joaquin Hills: Central Los Trancos Canyon. 0 Comment
  CDA22511  Brassica nigra D. Nguyen, C. Nguyen 2006-2-4 3 Orange Southern Coastal; San Joaquin Marsh; northwest edge of marsh. Comment
  RSA0015953  Brassica nigra A. C. Sanders 2012-5-2 7688 Orange Lomas de Santiago: Loma Ridge, Las Flores Canyon at west end of ridge 0.4 km ESE Orange County Emergency Operations Center (hill 1311) and 2.4 km WSW Irvine Lake Park. 362 Comment
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Nov 17 2018
  UCR191363  Brassica nigra A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34626 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  CAS-BOT-BC30255  Brassica nigra Alice Eastwood 1936-4-5 s.n. Orange Santa Ana. Bixby Botanic Garden. Comment
  OBI17601  Brassica rapa Kurt R. Neisess 1975-12-19 s.n. Orange In Yorba Linda Comment
  UCR102002  Brassica rapa B. G. Pitzer 1997-3-25 3036 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  CAS-BOT-BC36769  Brassica rapa Ira L. Wiggins 1966-2-12 20427 Orange North side of La Palma Avenue near Harbor Boulevard, Anaheim. Comment
  RSA482936  Brassica rapa Freda Detmers 1933-11-1 s.n. Orange Near Fullerton. Comment
  UCD114851  Brassica rapa Ira L. Wiggins 1965-12-5 20365 Orange Orange grove 2 mi. E. of Atwood on N. side of Orangethorpe Ave. Comment
  RSA751984  Brassica tournefortii Fred M. Roberts, Lee Ann Carranza 2008-3-26 6801 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 50 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
  UCR222629  Brickellia californica T. B. Salvato 2010-10-27 5102 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  UCR132993  Briza minor Adrian Wolf 2001-7-16 456 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Baker Canyon Road 305 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
  RSA0127606  Brodiaea terrestris subsp. kernensis Fred M. Roberts 2016-4-14 8036 Orange University of California, Irvine campus: western edge of School of Medicine Complex, about 0.9 km W center of campus. 27 Comment
  CAS-BOT-BC144328  Bromus Ira L. Wiggins 1966-3-5 20519 Orange About 0.5 mile west of El Torro Post Office, along Highway S-18. Comment
  RSA734118  Bromus carinatus A. C. Sanders 2008-4-29 35144 Orange Peninsular Range;Santa Ana Mtns.: Lomas de Santiago, western end of Loma Ridgeon road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR138441  Bromus carinatus R. E. Riefner Jr. 2000-6-22 20 575 Orange Santa Ana Mountains, North Ranch Policy Plan Area, NE property, along National Forest boundary, at powerline 756 Comment
  UCR193046  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-6-17 35486 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  UC204884  Bromus carinatus var. carinatus R. L. Pendleton, F. M. Reed 1907-7-25 1195 Orange near Modjeska Falls (Lake Tahoe Region); Lake Tahoe Region Comment
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Sep 11 2013
  RSA184072  Bromus catharticus I. L. Wiggins 1965-11-5 20326 Orange In orange grove on N side of Chapman Avenue, near Kraemer Road. Comment
  UC1131180  Bromus diandrus A. Lewis Apr 1934 393 Orange San Joaquin Hills 60 Comment
  UCD58824  Bromus hordeaceus B. Pitzer 1996-4-30 2760 Orange Upper Newport Bay: Calif. Dept. Fish and Game Ecological Reserve, off (W of) Jamboree Rd. 6 Comment
  RSA542558  Bromus hordeaceus Fred M. Roberts 1987-4-21 3380 Orange Aliso Viejo: Aliso Creek, Aliso Creek bike trail, 3.0 kilmeters ENE Moulton Peak., UTM 3715500m N, 433650m E 73 Comment
  RSA708447  Bromus hordeaceus Mark Elvin 2004-5-2 3408 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  UC1146066  Bromus madritensis subsp. rubens C. L. Hitchcock, C. V. Muhlick 1964-3-17 23060 Orange 8 mi e of Yorba Linda (Santa Ana Canyon); Santa Ana Canyon Comment
  UCSB47581  Bromus madritensis subsp. rubens Roberts, Fred 1980-4-3 Orange Along Hwy 74, 0.2 km SW of Orange-Riverside Co. line, 0.4 km NNE Lower San Juan Picnic Ground, San Juan Cyn; Santa Ana Mtns 128 Comment
  CAS-BOT-BC161818  Bromus rubens Ira L. Wiggins 1966-3-5 20507 Orange Along Highway S-18, about 4.5 miles east of Laguna Beach. Comment
  RSA732169  Bromus rubens A. C. Sanders, Fred M. Roberts 2008-3-25 34539 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA42  Bromus rubens J. T. Howell 1928-2-26 857 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA0022428  Bromus tectorum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49786 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UC124604  Cakile edentula A. Davidson, M. D. 1908-5-2 1789 Orange s Newport Bay Newport Bay Comment
  CAS-BOT-BC36894  Cakile edentula var. edentula L. R. Abrams 1917-6-23 6574 Orange Balboa. Comment
  RSA649676  Calamagrostis koelerioides R. E. Riefner 2000-6-26 20 -579 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N and W of Black Star Canyon Road at powerline tower. 631 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
  RSA699295  Calandrinia R. H. McArthur 1934-3-10 s.n. Orange Tomatoe Springs Comment
  RSA734964  Calandrinia breweri A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35314 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  SBBG133600  Calandrinia breweri R. E. Riefner Jr. 2008-3-5 08 -31 Orange Irvine Ranch Reserve, N Irvine Ranch, S of Windy Ridge Rd ca. 0.5 mi from W Fork of upper Fremont Cyn 495 Comment
  RSA737235  Calandrinia breweri R. E. Riefner 2008-4-15 08 -70 Orange Irvine Ranch Reserve, North Irvine Ranch, S of Windy Ridge Rd. ca. 0.5 mi from West Forst of upper Fremond Canyon. 496 Comment
  RSA681015  Calandrinia ciliata Fred M. Roberts, David E. Bramlet 2003-3-13 5578 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 197 Comment
  SD234997  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-3-25 34576 Orange Peninsular Range: Santa Ana Mountains; saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mile N of (Santiago Reservoir) Irvine Lake (Black Star Canyon7.5' Q) 405 Comment
  UCR191452  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-4-8 34757 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
  IRVC29833  Callistemon Tom McCrainie, Mark A. Elvin 2006-9-23 7 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
  CDA9410  Callistemon citrinus D. G. Kelch 2006-12-9 6 .571 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA756071  Callistemon viminalis T. B. Salvato, Billy Deane 2006-10-16 1942 Orange Irvine, San Diego Creek flood control channel, between Michelson Driveand the 405 Fwy. 9 Comment
  SEINET6654150  Callistemon viminalis R. E. Riefner Jr. 2006-11-14 06 -674 Orange City of Irvine, San Diego Creek, vicinity of Campus Ave at University Dr.; 0 5 Comment
  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
  RSA708813  Callitriche marginata Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6162 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  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
  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
  RSA747612  Calochortus catalinae Fred M. Roberts 2000-4-27 5302 Orange Lomas de Santiago: Lomas Ridge, Agua Chinon Wash, 1.5 km S Bolero Spr. and 2.1 km WSW Bolero Lookout. 281 Comment
  POM17811  Calochortus invenustus Philip A. Munz, D. D. Keck 1923-6-14 7093 Orange Santiago peak, Santa Ana Mountains. 1616 Comment
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Apr 1 2013
  CAS-BOT-BC492707  Calochortus splendens A. M. White 1974-6-1 1429 Orange 20 Miles E of Santa Ana, N of Silverado Canyon 822 Comment
  RSA629047  Calochortus splendens Valerie L. Soza, LeRoy Gross 1999-6-10 525 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1555 Comment
  CAS-BOT-BC492704  Calochortus splendens Agnes M. Bowman 1899-3-1 s.n. Orange El Modena Comment
  RSA369038  Calochortus splendens N. C. Cooper 1944-6-4 1316 Orange Elsinore Mountain. 1067 Comment
  RSA0014077  Calochortus weedii var. intermedius Fred M. Roberts 2008-5-27 7003 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., c.a. 0.2km beyond Hicks Cyn., Gate, 2.2km WNW Bee Peak, Irvine Ranch conservancy 213 Comment
  RSA581433  Calochortus weedii var. intermedius Fred M. Roberts 1989-6-7 4376 Orange Santa Ana Mountains: Upper Gypsum Canyon along divide between Gypsum and Blind Canyon, 6.3 kilometers WSW Sierra Peak. 411 Comment
  RSA588984  Calochortus weedii var. intermedius D. E. Bramlet 1994-6-2 2382 Orange San Joaquin Hills. Emerald Canyon 1.2 km. north of Pacific Coast hwy. In the lower portion of the canyon 150 m W of the existing access road. 92 Comment
  RSA649683  Calochortus weedii var. intermedius R. E. Riefner 2000-6-26 20 -580 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N and W of Black Star Canyon Road at powerline tower. 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
  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
  RSA733841  Calycadenia tenella A. C. Sanders 2008-4-29 35130 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
  IRVC977  Calystegia macrostegia subsp. intermedia E. Cowper 1965-4-16 Orange between Trabuco and [Santiago Canyon]. Santa Ana Mountains Comment
  LA50068  Calystegia macrostegia subsp. intermedia C. B. Wolf; 1931-3-6 1865 Orange 2 mi. from Orange County Park on the road to Anaheim 152 Comment
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Feb 5 2015
  RSA697156  Calystegia occidentalis subsp. occidentalis Kenneth Beard s.n. Orange Between Irvine & S.J. Capistrano. Comment
  RSA0013578  Camissonia D. E. Bramlet 2008-3-26 4120 Orange Bee Canyon. Bowerman landfill site. 202m S of the Bee Cyn. Access Road, 151m west of landfill entrance. Comment
  UCR190999  Camissonia bistorta A. C. Sanders, Fred M. Roberts 2008-4-22 35044 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
  UCR281498  Camissonia bistorta Mitch Provance, Jeremiah George 2017-3-20 317- 100 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Road W of Gilbert Street and N of Rosecrans Ave., on land previously occupied by oil fields. 131 Comment
  RSA731977  Camissonia californica A. C. Sanders 2008-4-1 34658 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 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
  RSA542490  Camissonia micrantha Fred M. Roberts, T. Sholars, B. Stechmeyer 1988-3-29 3880 Orange Santa Ana Mountains: Hot Springs Canyon, 0.5 km by road north Hwy 74, 0.9 km ESE Juan Rancho Survey Marker. 223 Comment
  RSA5804  Camissonia micrantha Carl B. Wolf 1932-6-28 3778 Orange Along western half of no. boundary of 40 acre Valencia Orange grove at Bryant Ave. and Hansen Road. 9 Comment
  JEPS31570  Camissoniopsis bistorta Alice King March 1908 Orange Anaheim Plain Comment
  UC635390  Camissoniopsis bistorta H. L. Mason 1926-4-25 2928 Orange 5 mi s Laguna Comment
  UCSB48375  Camissoniopsis bistorta Roberts, Fred 1982-5-22 Orange Dana Point: jct. of Stone Hill Dr. and Selva Road, 1.0km ESE Dana Hills High School; 1.7km SW Marco Forster Junior High School 40 Comment
  UC1607988  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Donald G. Nelson 1935-4-14 270 Orange Newport Beach. Comment
  UCSB22957  Camissoniopsis cheiranthifolia subsp. suffruticosa McMinn, H. 1924-7-19 Orange Sunset Beach Comment
  JEPS31778  Camissoniopsis lewisii Alice King 1908-1 Orange Santa Ana Comment
  UCR224398  Cannabis sativa Robt. L. Allen, Reginald I. Durant 2008-5-9 s.n. Orange Santa Ana Mountains, Silverado Canyon, 1.6 road miles east northeast above Maple Springs Forest Gate, between Lost Woman Canyon and Spruce Canyon 766 Comment
  CAS-BOT-BC37592  Cardamine californica C. B. Wolf 1931-1-30 1826 Orange Santa Ana Mountains. Claymine Canyon. 304 Comment
  UCR241061  Cardamine californica Dick Newell, Don Millar 2013-2-5 313 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon at mouth, 1/2 mi. NE of Irvine Dam spillway 213 Comment
  UCR262008  Cardamine californica Dick Newell, Don Millar 2015-2-10 387 Orange South Coast, Laguna Canyon, on Willow Canyon Trail, 0.14 mi. due west of Laguna Canyon Rd. 80 Comment
  JEPS53317  Cardaria draba L. M. Booth 1932-5-15 1197 Orange s of Huntington Beach Comment
  RSA696167  Cardaria draba Keith E. Hoffmaster 1932-5-30 s.n. Orange Santa Ana. Comment
  POM202106  Cardionema ramosissimum L. M. Booth 1932-5-24 1093 Orange West Side of Newport Lagoon. Comment
  RSA441726  Cardionema ramosissimum Albert J. Perkins 1923-03 s.n. Orange Santa Ana. Near Cottege, Arch Beach. Comment
  UCR215305  Cardionema ramosissimum Fred M. Roberts, Eliza L. Maher 2008-3-26 6794 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of Marine Institute, Dana Point Harbor 60 Comment
  RSA732227  Carduus pycnocephalus A. C. Sanders, Fred M. Roberts 2008-4-22 35019 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 1200 Comment
  RSA699322  Carduus pycnocephalus Fred M. Roberts 2003-5-1 5682 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
  RSA88648  Carex barbarae F. W. Peirson 1924-2-9 4524 Orange Between Wintersberg and the sea. Comment
  UCR13444  Carex barbarae J. M. Pearia 1973-5-13 730513 4 Orange Peninsular Range; Santa Ana Mtns., c. 14 mi east of San Juan Capistrano on Hwy 74 along the bank of San Juan Creek 244 Comment
  HSC46673  Carex globosa Christopher Davidson 1977-5-18 5621 Orange Santa Ana Mts. Cleveland Nat. Forest. Bear Springs 1220 Comment
  CAS-BOT-BC118495  Carex praegracilis Helen D. Geis 1902-4-1 502 Orange Near Santa Ana Comment
  CAS-BOT-BC118500  Carex praegracilis Helen D. Geis 1902-4-1 506 Orange Santa Ana Comment
  UC971745  Carex praegracilis L. M. Booth 1932-7-1 1234 Orange Anaheim Creek Comment
  RSA0026256  Carex spissa Fred M. Roberts 2013-6-12 7794 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  SEINET10447212  Carpobrotus aequilaterus Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7130 Orange In vicinity of Laguna Beach. 152 Comment
  UCD96837  Carpobrotus chilensis Gordon Pilone 1961-3-14 110 Orange Little Corona Del Mar. 30 Comment
  UCR196320  Carpobrotus chilensis Mark A. Elvin, Dean Kelch 2006-12-9 5292 Orange South Coast, Newport Backbay, Big Canyon, lower end 3 Comment
  UCR42449  Carpobrotus chilensis A. C. Sanders 1986-5-31 6530 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
  POM6405  Castilleja affinis Philip A. Munz, Street, Williams 1919-5-3 2616 Orange Santa Ana River Canyon. Comment
  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
  UCR150610  Castilleja affinis Scott D. White 1997-5-6 5044 Orange Peninsular Ranges; Santa Ana Mountains, Lomas de Santiago. Santiago Canyon area: Ridgetop road N and west of Bolero Lookout 488 Comment
  UCR191447  Castilleja affinis A. C. Sanders, Fred M. Roberts 2008-4-8 34759 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
  RSA0010904  Castilleja affinis Mabel Harvey s.n. Orange Modjeska's Home Comment
  RSA539361  Castilleja affinis Fred M. Roberts, Karlin G. Marsh 1989-3-7 4179 Orange Lomas de Santiago: Lomas Ridge, tributary to Hicks Canyon, 2.3 km W Bee Canyon. 157 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
  LA209078  Castilleja affinis subsp. affinis Carl Epling; Harlan Lewis 1940-4-21 Orange Hills 6 mi E of San Juan Capistrano Comment
  SD247731  Castilleja affinis subsp. affinis R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49649 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] Comment
  RSA305821  Castilleja applegatei subsp. martinii James R. Shevock 1970-4-25 160 Orange Near Irvine Lake. 305 Comment
  SBBG52723  Castilleja applegatei subsp. martinii C. Davidson 1977-5-18 5628 Orange Bear Springs, Santa Ana Mtns 1219 Comment
  RSA743515  Castilleja exserta subsp. exserta Fred M. Roberts 2008-4-9 6866 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  UCSB17560  Castilleja exserta subsp. exserta Cummings, R. 1963-5-11 Orange 9 miles from San Juan Capistrano on U.S. Highway 101 alternate Comment
  HSC20518  Castilleja foliolosa S. M. Clapp 1966-4-10 31 Orange 4 mi. into Black Star Canyon 183 Comment
  RSA705  Castilleja foliolosa J. T. Howell 1928-2-25 848 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA512755  Castilleja minor subsp. spiralis Walter Wisura, Bart O'Brien, Durant 1990-6-12 4448 Orange Along forest rd. 3SO4 fr. 2.15 miles Ortega Hwy. to Santiago Peak. Comment
  RSA734200  Castilleja minor subsp. spiralis Keith E. Hoffmaster 1934-7-15 117 Orange Santa Ana Mts (Modjeska) Comment
  RSA749793  Caulanthus heterophyllus D. E. Bramlet 2008-4-1 4145 Orange Ridgeline in Upper Hicks Canyon, 162m S of the Haul Road. 346 Comment
  CAS-BOT-BC48490  Ceanothus crassifolius D. O. Burge 2007-3-22 805 b Orange Santa Ana Mountains, Cleveland National Forest, 2.3 road miles (3.7 km) from Hwy 74 on USFS Road 3S04, Comment
  RSA542417  Ceanothus crassifolius Fred M. Roberts 1988-3-15 3854 Orange Rancho Mission Viejo: Verdugo Canyon, 0.8 km SE Lucas Survey Mark. 247 Comment
  RSA594804  Ceanothus crassifolius Fred M. Roberts 1992-2-26 4835 Orange Santa Ana Mts. Ridge west of Black Star Canyon and north of confluence of Black Star Canyon and Santiago Canyon, 4.3 km ESE Irvine Lake spillway. 353 Comment
  SD220711  Ceanothus crassifolius Jim Riley 2012-2-3 sjc 1 Orange San Juan Creek Arroyo 607 Comment
  SD41968  Ceanothus crassifolius Darley F. Howe 1947-4-29 Orange Santa Ana Mts. 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
  RSA659543  Ceanothus leucodermis P. Shirokawa 1998-5-7 19 Orange Cleveland National Forest- Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road 960 Comment
  SD134389  Ceanothus megacarpus Craig Reiser 1987-6-26 Orange Anaheim, Wallace Ranch near Wier Canyon Road Comment
  IRVC26730  Ceanothus megacarpus subsp. megacarpus 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
  CAS-BOT-BC50507  Ceanothus megacarpus var. megacarpus John Thomas Howell 1927-6-26 2609 Orange Claymine Canyon, n. Santa Ana Mts. 701 Comment
  SBBG45051  Ceanothus megacarpus var. megacarpus J. T. Howell 1927-6-26 228 Orange Claymine Cyn near Sierra Pk 701 Comment
  UC1070886  Ceanothus megacarpus var. megacarpus H. E. Norton and J. B. Spring 1931-3-28 50 Orange sw of Niguel Hill; Corona quad. 914 Comment
  UCSB22737  Ceanothus megacarpus var. megacarpus Van Rensselaer, Maunsell 1941-7-12 Orange about 3 miles South of Laguna Beach Comment
  RSA16340  Ceanothus oliganthus Percy C. Everett 1935-6-18 7194 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 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
  UCSB48364  Ceanothus oliganthus var. oliganthus Roberts, Fred 1982-4-18 Orange SANTA ANA MTNS.: Upper Hot Springs Cyn., 0.1km SW Falcon Group Camp; 2.0km SE Los Pinos Peak 1075 Comment
  CAS-BOT-BC63562  Ceanothus oliganthus var. orcuttii Carl B. Wolf 1941-8-15 11158 Orange Santa Ana Mts. along main divide motorway just no. of head of Trabuco truck trail. 1219 Comment
  UCSB3954  Ceanothus oliganthus var. orcuttii Kamb, Peter 1948-6-19 Orange Holy Jim Canyon, Santa Ana Mts. 609 Comment
  SEINET10852447  Ceanothus oliganthus var. sorediatus Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 7 Orange Cleveland National Forest, 2 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. 957 Comment
  CLARK-A1528-3898  Ceanothus papillosus subsp. roweanus John C. Roos 1962-5-5 Orange Santa Ana Mountains Comment
  HSC46608  Ceanothus papillosus var. roweanus Christopher Davidson 1977-5-18 5598 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line) 1220 Comment
  LA42097  Ceanothus spinosus Carl B. Wolf; 1936-7-8 8098 Orange Santa Ana Mountains, along Ortega Hwy, San Juan Canyon, 0.2 mi. W of Riverside County line 274 Comment
  UC718318  Ceanothus spinosus Carl B. Wolf 1936-6-17 7950 Orange along Ortega Highway 2/10 mi w Riverside Co. Line (San Juan Canyon); Santa Ana Mts., San Juan Canyon 274 Comment
  CAS-BOT-BC184957  Cenchrus longispinus John Thomas Howell 1927-7-18 2795 Orange Santa Ana River bottom, Santa Ana Canon [Canyon]. 152 Comment
  RSA697730  Cenchrus spinifex J. Vlahos 1933-10-5 s.n. Orange Santa Ana River Bed by 17th St. bridge. Comment
  CAS-BOT-BC277101  Centaurea melitensis John Thomas Howell 1927-6-20 2558 Orange On north side of Santa Ana Canon [Canyon] 228 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
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Apr 29 2008
  RSA735173  Centaurea melitensis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35276 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  SD143577  Centaurea melitensis R. D. Goeden, D. W. Ricker 1965-6-21 Orange Dana Point 75 Comment
  SD152950  Centaurea melitensis Steve Boyd, Tim Ross 1992-5-20 7477 Orange Southern Santa Ana Mountains; western edge of the wilderness in Lucas Canyon, along foot trail upstream from end of old roadgrade to upper homestead. 349 Comment
  CLARK-A1528-916  Centaurea melitensis Patricia A. Andrews 1975-6-25 5927 Orange Capistrano Bay Beach 9 Comment
  RSA226629  Centaurea melitensis Christopher Davidson, Gerald L. Benny 1971-6-15 1549 Orange Brea Canyon, 0.5 mi. N of Central Ave, along Brea Cr, near bridge. Comment
  RSA5829  Centaurea melitensis C. B. Wolf 1932-6-28 3793 Orange Bryant Ranch, north boundary of field, N.E. corner of N-E 1/4 S.W. 1/4 sect 27 9 Comment
  SEINET10842519  Centaurea melitensis Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7129 Orange In vicinity of Laguna Beach. 152 Comment
  RSA573296  Centaurium venustum Steve Boyd, T. S. Ross 1994-9-14 8353 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucas Canyon Trail crossing. 305 Comment
  RSA759266  Centranthus ruber Robert Allen, Reginald Durant 2008-5-9 s.n. Orange Silverado Canyon, USFS Maple Springs Forest Gate 562 Comment
  CAS-BOT-BC288844  Centromadia parryi subsp. australis David D. Keck 1932-9-30 1897 Orange Ca 5 miles S of Santa Ana on road to Newport Beach Comment
  SD134529  Centromadia parryi subsp. australis Craig Reiser 1991-3-19 Orange Newport Beach Bay, W of Delhi Channel Comment
  CAS-BOT-BC288842  Centromadia parryi subsp. australis David D. Keck 1933-9-17 2524 Orange Westminster Comment
  RSA172271  Cercocarpus betuloides Robert F. Thorne 1963-7-26 32844 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Cleveland National Forest 854 Comment
  RSA660285  Cercocarpus betuloides Orlando Mistretta 1992-6-2 452 Orange Vicinity of Sierra Peak. (Historical Locality). On old roadcut heading down to power lines at 2280'. Comment
  RSA787496  Cercocarpus betuloides var. betuloides Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49704 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  IRVC23289  Chaenactis artemisiifolia Fred M. Roberts, K. G. Marsh 1985-7-18 2053 Orange Temple Hill, Goff Ridge, 0.9km NE Goff Island off Nye Place Laguna Beach 168 Comment
  RSA16347  Chaenactis artemisiifolia Percy C. Everett 1935-6-18 7186 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  IRVC588  Chaenactis fremontii B. Mawdsley 1965-4-4 Orange Corona del Mar. Newport Beach Comment
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Dec 20 2006
  RSA443832  Chaenactis glabriuscula var. glabriuscula Gordon Marsh 1978-5-22 s.n. Orange Santa Ana Mts, Upper Trabuco Canyon, gravel floodplain near live oak canyon road Comment
  RSA638968  Chaenactis glabriuscula var. glabriuscula Valerie L. Soza, LeRoy Gross 1999-6-8 499 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  UC149240  Chaenactis glabriuscula var. glabriuscula LeRoy Abrams 1903-4-13 3254 Orange Buena Park Comment
  LA203171  Chaenactis glabriuscula var. glabriuscula Robert G. Engman; sn Orange Dana Point Comment
  RSA648946  Chamaesyce albomarginata Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 62 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  POM2858  Chamaesyce polycarpa var. polycarpa D. L. Crawford s.n. Orange Aliso Pt. (Laguna Beach region) Comment
  RSA2070  Chamaesyce polycarpa var. polycarpa C. B. Wolf 1931-3-6 s.n. Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  IRVC846  Chamomilla suaveolens C. Weir 1965-4-17 Orange Newport Beach; Balboa Island. Southern Coastal Comment
  RSA685784  Cheilanthes newberryi H. H 1915-3-15 s.n. Orange Santiago Canyon 367 Comment
  RSA797474  Cheilanthes newberryi R. F. Thorne 1977-11-21 49987 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  UCD137350  Cheilanthes newberryi Beecher Crampton 1963-5-7 6788 Orange Santa Ana Mountains, Lower San Juan Canyon, ca. 11 miles northeast of San Juan Capistrano, State Hwy. 74. Comment
  RSA685771  Cheilanthes newberryi T. R. Pray 1961-2-14 1825 Orange San Juan Canyon along Ortega Hwy, near bridge just west of Cleveland National Forest Comment
  UC1543076  Chenopodium Donald G. Nelson 1936-5-29 428 Orange S. Grand Ave. s Buena Park; Bob Barnes Ranch Comment
  UCR179762  Chenopodium album R. E. Riefner Jr. 2006-10-8 06- 484 Orange South Coast, Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Road 51 Comment
  RSA5936  Chenopodium album C. B. Wolf 1932-7-7 3838 Orange Bryant Ranch, along drainage ditch on Bixby Ave.; 100 ft. W. of Hansen Rd.; 100 ft W of corner of NE 1/4 9 Comment
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Apr 9 2014
  IRVC21735  Chenopodium ambrosioides Fred M. Roberts 1984-10-18 1423 Orange San Juan Canyon, 2.5km ENE San Juan Guard Station; 4.0km WNW Sitton Peak, Santa Ana Mountains 310 Comment
  POM201674  Chenopodium ambrosioides L. M. Booth 830 Orange Santa Ana Canyon. Comment
  POM6323  Chenopodium ambrosioides L. T. Street, G. Williams 1919-5-10 2750 Orange Turnbull Canyon. Near Whittier 305 Comment
  RSA5964  Chenopodium ambrosioides C. B. Wolf 1932-9-13 4036 Orange Bryant Ranch, No. boundary between San Gabriel River Flood Control Dike & Well in SE 1/4 sect. 25., 1300 ft W of n.E. corner of S.E. 1/4 Sect. 25. T4S R12W. 6 Comment
  POM122892  Chenopodium berlandieri var. sinuatum Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA234491  Chenopodium berlandieri var. sinuatum James Henrickson 1970-8-29 5304 Orange 3 miles NW of Huntington Beach; north end of Bolsa Chica Marsh near pasture. 0 Comment
  RSA725467  Chenopodium berlandieri var. sinuatum Fred M. Roberts, Megan Lulow 2007-7-30 6551 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  POM183953  Chenopodium californicum P. A. Munz 1932-3-29 12186 Orange Costa Mesa. Comment
  RSA732153  Chenopodium californicum A. C. Sanders, Fred M. Roberts 2008-4-22 35022 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 1200 Comment
  UCR192453  Chenopodium californicum A. C. Sanders, Fred M. Roberts 2008-3-25 34577 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
  RSA793261  Chenopodium macrospermum R. F. Thorne 1984-1 s.n. Orange Newport Back Bay Comment
  CLARK-A1528-976  Chenopodium rubrum Patricia A. Andrews 1975-6-26 5926 Orange Capistrano Bay Beach 9 Comment
  UCSB48358  Chlorogalum parviflorum Roberts, Fred 1982-7-1 Orange South Laguna; Niguel Hill, at end of Sea Island Dr., 1.9 km. SE Aliso Peak 210 Comment
  RSA0036641  Chlorogalum pomeridianum var. pomeridianum Robt. Allen 2009-3-29 s.n. Orange Peninsular Ranges; Santa Ana Mountains region: 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
  UCR147627  Chorizanthe parryi var. fernandina Helen D. Geis 1902-3 541 Orange Coastal Plains & Basins; South Coastal Plain region, 'hills near Santa Ana Comment
  RSA678497  Chorizanthe procumbens Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5845 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive. 76 Comment
  UCR143496  Chorizanthe procumbens D. E. Bramlet 1994-6-2 2379 Orange Coastal Foothills, San Joaquin Hills; ridgeline north of Little Sycamore Canyon, 244m NE of Little Sycamore Canyon and 488m west of Laguna Cyn. Road 165 Comment
  CAS-BOT-BC255246  Chorizanthe staticoides Herbert L. Mason 1926-4-25 2913 Orange 5 miles below Laguna Comment
  POM201761  Chorizanthe staticoides L. M. Booth 1932-5-12 s.n. Orange Newport Bay. Comment
  RSA13173  Chorizanthe staticoides Percy C. Everett 1935-4-29 6711 Orange 7/10 of a mile west of Esperanza, Santa Ana canyon.. 152 Comment
  RSA182  Chorizanthe staticoides J. T. Howell 1927-6-8 61 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA542528  Chorizanthe staticoides Fred M. Roberts, G. A. Marsh, K. G. Marsh 1988-4-26 3942 Orange San Joaquin Hills: Pelican Hill, 0.5 kim SE Summit. 165 Comment
  RSA584709  Chorizanthe staticoides Fred M. Roberts, Scott Wade 1989-6-21 4390 Orange San Joaquin Hills: Pelican Hill, c.a. 0.4km ESE summit. 194 Comment
  RSA702986  Chorizanthe staticoides D. E. Bramlet, Fred Roberts 2003-5-1 3424 Orange Donna O'Neill Reserve. Drainage north of the North Ridge trail, 457m west of Cristianitos Rd. and 1.2km north of the E-W access road. 134 Comment
  RSA734593  Chorizanthe staticoides A. C. Sanders, Fred M. Roberts 2008-5-6 35221 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  UCR192985  Chorizanthe staticoides A. C. Sanders, Fred M. Roberts 2008-5-6 35214 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  POM202172  Cirsium brevistylum L. M. Booth 1932-5-15 1199 Orange Santa Ana River, 1/2 miles from ocean Comment
  RSA721121  Cirsium occidentale Anonymous s.n. Orange Lower Trabuco. Comment
  UCR281520  Cirsium occidentale var. californicum Mitch Provance 2017-6-9 617- 93 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  RSA788908  Cirsium occidentale var. occidentale Fred M. Roberts 2008-6-26 7060 Orange Lomas de Santiago: Loma Ridge along West Loma Ridge Road, c.a. 1 km N Haul Rd., 2.5 km NNW Bee Peak, Irvine Ranch Land Conservancy. 382 Comment
  RSA184137  Cirsium vulgare I. L. Wiggins 1965-11-3 20311 Orange Margin of orange grove, east side of California State College at Fullerton campus, near Placentia Ave., Fullerton Comment
  SDSU3806  Cirsium vulgare Curtis B. Kendall 1994-5-18 18 V94F Orange Intersection of Bell Canyon Road and North Prusker Road in he National Audubon Starr Ranch Sanctuary. 268 Comment
  CAS-BOT-BC162647  Clarkia E. W. Lathrop 1974-6-27 7408 Orange 5 miles est of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l. Forest, Santa Ana Mountains 396 Comment
  POM6345  Clarkia bottae P. A. Munz, L. T. Street, G. Williams 1919-5-3 2647 Orange Santa Ana River Canyon. Comment
  RSA0013955  Clarkia bottae Fred M. Roberts 2008-5-7 6942 Orange Lomas de Santiago: Loma Ridge, Limestone Ridge between Dripping Spr. and Limestone Cyn., 3.5 km NW Bolero Lookout and 1.7 km E Bee Peak. Irvine Ranch Conservancy. 481 Comment
  RSA500  Clarkia bottae J. T. Howell 1927-6-17 155 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA631396  Clarkia deflexa Valerie L. Soza, LeRoy Gross 1999-6-7 475 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  UCR79273  Clarkia deflexa Steve Boyd, T. S. Ross 1992-5-19 7441 Orange S Santa Ana Mtns, San Mateo Canyon Wilderness Area. W edge of the wilderness in Lucas Canyon from crossing of creek by Lucas Canyon trail, downstream to confluence with Aliso Canyon. 335 Comment
  RSA493805  Clarkia dudleyana Jeri Hirshberg 1988-6-2 s.n. Orange Upper Gypsum Canyon. 274 Comment
  POM3136  Clarkia epilobioides P. A. Munz 1918-5-4 2175 Orange Laguna Beach Comment
  UC1280309  Clarkia epilobioides John M. Tucker 1941-5-30 258 Orange 2-3 mi e of w boundary Cleveland National Forest (Ortega Highway) Comment
  UCR132980  Clarkia purpurea Adrian Wolf 2000-4-15 461 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Baker Canyon Road 335 Comment
  RSA17221  Clarkia purpurea subsp. quadrivulnera Carl B. Wolf 1936-6-22 8001 Orange Santa Ana Mts. Slopes of Modjeska Pk. at abouit the Head of Harding Canyon. 1220 Comment
  RSA448293  Clarkia purpurea subsp. quadrivulnera N. C. Cooper 1945-6-4 1333 Orange San Juan Canyon 762 Comment
  RSA637490  Clarkia purpurea subsp. quadrivulnera Valerie L. Soza, LeRoy Gross 1999-6-8 507 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA747620  Claytonia parviflora subsp. parviflora Fred M. Roberts 2008-4-16 6905 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  SFV16197  Claytonia perfoliata R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 46 Orange Newport Beach, Upper Newport Bay on Back Bay Drive about 0.5 miles north of Shellmaker Island. Mesic roadside at base of coastal bluff adjacent to semi-disturbed coastal sage scrub area. Comment
  HSC17702  Claytonia perfoliata subsp. mexicana S. M. Clapp 1966-4-10 35 Orange 10 mi. into Silverado Canyon 183 Comment
  UC1136736  Claytonia perfoliata subsp. mexicana A. Lewis 1934-4-1 378 Orange Coal Mine; Corona Quad. 243 Comment
  RSA16489  Clematis lasiantha Percy C. Everett 1935-6-18 7218 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  UC1125960  Clematis lasiantha H. E. Norton 1931-3-3 32 Orange 1 mi. s. Sierra Peak; Corona Quad. Comment
  UCD169739  Clematis lasiantha R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49689 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  UCSB29146  Clematis lasiantha Copp, Joseph 1962-3-9 Orange San Juan Can; Calif. 74; 8.8 rd. mi. northeast of US 101 Comment
  POM305824  Clematis pauciflora Henry J. Ramsey, Henry J. Ramsey 1937-4-2 1074 Orange Capistrano Canyon. Comment
Read comments
Dec 17 2011
  RSA386282  Clematis pauciflora M. B. Dunkle 1936-3-14 4701 Orange San Juan Canyon. Comment
  UC1201823  Clematis pauciflora R. W. 1933-4-1 Orange near Capistrano Comment
  POM499  Cleome isomeris D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  RSA234519  Cleome isomeris James Henrickson 1970-7-24 4958 Orange 1.5 miles NW of Huntington Beach, along border of Bolsa Chica Salt Marsh at SW end of Huntington Beach Mesa. 2 Comment
  UCR256937  Clinopodium chandleri Naomi Fraga, Duncan S. Bell 2009-5-11 2721 Orange Peninsular Range; Santa Ana Mountains, Chiquita Trail, Lion Canyon 762 Comment
  UCSB50632  Clinopodium chandleri Roberts, Fred 1982-7-9 Orange Santa Ana Mtns.: San Juan Canyon, 0.l km N Lower San Juan Picnic Ground 415 Comment
  POM49164  Cneoridium dumosum I. M. Johnston 1924-7-10 s.n. Orange 1/2 mi. S. of Aliso Canyon. Comment
  RSA449087  Cneoridium dumosum Thekla Mohr 1920-6-1 s.n. Orange Laguna. Comment
  RSA542394  Cneoridium dumosum Fred M. Roberts Jr. 1984-2-4 1173 Orange Temple Hill: Upper Hobo Canyon, 1.2km NNE Goff Island; 2.4km S Top of the World School. 200 Comment
  RSA77080  Cneoridium dumosum F. W. Peirson 1919-11-18 2031 Orange South of Arch Beach, Comment
  UCD116910  Cneoridium dumosum Raymond A. Evans 1951-3-23 s.n. Orange South of Laguna. 60 Comment
  RSA0045604  Collinsia bicolor Lucille Crawford 1932-5-1 981 Orange Silverado Canon. PR8. Comment
  RSA33582  Collinsia heterophylla N. C. Cooper 1944-6-4 1361 Orange San Juan Canyon, lower camp ground. 457 Comment
  RSA0018459  Collinsia heterophylla J. D. Olmsted 1959-5-1 532 Orange 100 yrds NW of Rattlesnake Rock. 0.75 mi N of Hidden Ranch in Black Star Canyon. 4-5 mi E of Irvine Lake Reservoir. Drainage area to Santa Ana River. 732 Comment
  RSA305753  Collinsia heterophylla James R. Shevock 1313 Orange Newport Beach Bay. 11 Comment
  RSA0051387  Comarostaphylis diversifolia subsp. diversifolia Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49607 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  IRVC29723  Conium maculatum Mark A. Elvin, Barry S. Nerhus 2006-11-4 5254 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA521  Conium maculatum J. T. Howell 1927-7-19 447 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  IRVC970  Convolvulus arvensis R. Hobson 1965-4-10 Orange Santa Ana Heights, 2431 Mesa Dr. Southern Coastal Comment
  RSA5875  Convolvulus arvensis C. B. Wolf 1932-9-13 4024 Orange 3/10 mi. W of Los Alamitos Blvd. and 200 ft. So. of Bryant Ave. Comment
  UCSB52934  Convolvulus arvensis Roberts, Jr., Fred 1984-8-2 Orange Irvine; along Adobe Circle Road, UC Irvine, 0.9 km. ENE campus center; 2.3 km. W French Hill 30 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
  RSA718958  Conyza bonariensis Fred M. Roberts, Robert L. Allen 2006-10-8 6422 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
  CAS-BOT-BC286162  Conyza canadensis Ira L. Wiggins 1965-11-6 20341 Orange Kraemer Oil Estates, near Well No. 14, near end of county road leading to Rancho Santa Ana (extension of Orangethorpe Blvd.) Comment
  CAS-BOT-BC133229  Conyza coulteri T. B. Salvato 2010-10-27 5139 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  CDA23616  Conyza coulteri T. McCrainie, Mark A. Elvin 2006-9-23 9 Orange Southern Coastal; Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives, 1.7 km (air) north-northwest of UC Irvine campus center. Comment
  RSA725944  Conyza floribunda R. E. Riefner 2006-10-8 06 -481 Orange South Coast: Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Rd. 51 Comment
  UCR192729  Conyza floribunda A. C. Sanders, Fred M. Roberts 2008-5-6 35210 B Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  RSA254979  Cordylanthus maritimus C. W. Tilforth 1975-9-3 1040 Orange Northeast shoreline of Upper Bay, Newport Beach Comment
  RSA412315  Cordylanthus maritimus subsp. maritimus F. R. Fosberg 1930-7-10 S 3176 Orange Anaheim Landing. [Now Seal Beach, Orange County. Los Angeles Co. on label] 1 Comment
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Nov 5 2007
  RSA486865  Cordylanthus maritimus subsp. maritimus P. R. Atsatt 1971-6-15 s.n. Orange Newport Beach, Back Bay Comment
  UC537013  Cordylanthus maritimus subsp. maritimus Lawrence M. Booth 1932-7-19 1273 Orange Bolsas Marsh Comment
  RSA506432  Cordylanthus rigidus subsp. setiger Kathy Harper 1988-7-16 s.n. Orange Cleveland National Forest, on Hwy 74 near El Cariso. SE of Hwy Comment
  UCSB48241  Cordylanthus rigidus subsp. setiger Roberts, Fred 1981-7-21 Orange Santa Ana Mts.: 0.8km SE Blue Jay Camp Ground 934 Comment
  UCR246474  Cordyline R. E. Riefner Jr. 2012-11-6 12- 532 Orange South Coast, city of Newport Beach, Newport Bay, North Star Beach, near Newport Aquatic Center, White Cliffs Drive/North Star Lane 9 Comment
  CAS-BOT-BC101297  Corethrogyne filaginifolia Marcus E. Jones 1924-8-26 s.n. Orange Newport Comment
  RSA752895  Corethrogyne filaginifolia A. C. Sanders, Fred M. Roberts 2008-8-7 35970 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  UCR217460  Coronopus didymus Mark A. Elvin 2003-2-23 2307 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  SD133232  Cortaderia selloana A. C. Sanders 1990-10-6 10196 Orange Newport Bay; North Star County Beach area on the southwest end of bay; ca 2 km inland of highway 1; on sandy flats and bluffs 0 Comment
  UCD59799  Cortaderia selloana A. C. Sanders 1990-10-6 10196 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2 km inland of Hwy. 1. 1 Comment
  SEINET3926228  Cortaderia selloana Pamela G. Jones 1967-12-30 93 Orange 4571 Rose Dr., Yorba Linda. (Part 2- goes with Sheet Number 66186); 0 Comment
  UC31282  Cotula coronopifolia C. W. Hamlin 1896-1 7 Orange Buena Park Comment
  UCR106873  Cotula coronopifolia Michael A. Patten, Steve Myers 1993-3-9 s.n. Orange Tustin, Marine Corps Air Station 107 Comment
  CAS-BOT-BC291358  Cotula coronopifolia C. W. Tilforth; John Dourley 1969-4-22 184 Orange San Clemente Comment
  RSA696059  Cotyledon lanceolata Keith E. Hoffmaster 1928-5-29 s.n. Orange San Onofre. CP5. Comment
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Dec 20 2019
  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
  RSA542645  Cressa truxillensis Fred M. Roberts, Kathy Keane, Carol A. Roberts 1988-5-25 4580 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.4 kilometers SSE Medium Rancho Survey Mark. 69 Comment
  UC729953  Cressa truxillensis Carl B. Wolf 1932-6-28 3800 Orange 25 ft. w. of n.-s. rd. at e. side of Sect 29 & 600 ft. n. of s.e. corner of s.e. 160 of Sect. 29 Bryant Ranch Comment
  UCR157706  Cressa truxillensis Adrian Wolf 1998-7-1 420 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
  RSA394757  Cressa truxillensis Albert J. Perkins 1917-11-3 s.n. Orange Santa Ana. Comment
  UCSB47973  Croton californicus Roberts, Jr., Fred 1980-2-17 Orange Along north side of Dana Strand Road, on the bluffs west of Dana Mrina, Dana Point 56 Comment
  RSA0011251  Croton californicus Fred M. Roberts Jr. 1989-5-9 4340 Orange Santa Ana Mts: Gypsum Canyon, west fork, 5.6 km WNW Sierra Peak, c.a. 1 km S Highway 91. 146 Comment
  RSA648656  Crypsis schoenoides R. E. Riefner 2000-8-23 20 -731 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  RSA641  Cryptantha clevelandii J. T. Howell 1927-7-22 460 Orange North of Botany Garden, Rancho Santa Ana. 274 Comment
  IRVC255  Cryptantha intermedia C. Hinesly Orange Trabuco Canyon Santa Ana Mountains Comment
  RSA732088  Cryptantha intermedia A. C. Sanders, Fred M. Roberts 2008-3-25 34546 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR192499  Cryptantha intermedia A. C. Sanders, Fred M. Roberts 2008-3-25 34546 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR157485  Cryptantha leiocarpa A. C. Sanders 1986-5-31 6529 Orange Southern Coast, Balboa Island at Newport Beach. Dunes at the back edge of the beach, from 6th St. S to the harbor entrance 1 Comment
  POM13831  Cryptantha microstachys P. A. Munz 1922-4-28 5042 Orange Leach Canyon, Santa Ana Mountains 670 Comment
  POM6631  Cryptantha microstachys P. A. Munz, L. T. Street, G. Williams 1919-5-3 2620 Orange Santa Ana River Canyon. Comment
  UCR209368  Cryptantha microstachys Fred M. Roberts, Linda Farley 2008-3-28 6829 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  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
  RSA1698  Cryptantha muricata C. B. Wolf 1931-3-6 1839 Orange Trabuco Canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  CHSC37640  Cucurbita foetidissima T. B. Devine 1981-7-30 737 Orange At junction of Santiago Canyon Road and road to O'Neal Park. 335 Comment
  RSA487  Cucurbita foetidissima J. T. Howell 1927-7-28 504 Orange Near ranch houses, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC506647  Cupaniopsis anacardioides R. E. Riefner, Jr. 2014-11-28 14 -407 Orange Cit of Newport Beach, SW corner Jamboree Rd. at MacArthur Blvd. 16 Comment
  CAS-BOT-BC80573  Cupressus forbesii John Thomas Howell 1927-6-26 2607 Orange at head of [Claymine Canon] Clay Mine Canyon, n. Santa Ana Mts. 701 Comment
  RSA7201  Cupressus forbesii B. D. Stark 1933-3-17 4532 -C Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  UC1281345  Cupressus forbesii H. E. McMinn 1935-6-22 3926 Orange at head Clay Mine Canyon (n end of Santa Ana Mts.); Santa Ana Mts., Clay Mine Canyon Comment
  NY16674  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6278 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA562766  Cuscuta californica Steve Boyd, Timothy S. Ross 1992-5-19 7420 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon. 366 Comment
  RSA570  Cuscuta californica J. T. Howell 1927-6-3 24 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR258625  Cuscuta campestris Fred M. Roberts 2014-7-25 7890 Orange South Coast, SAN JOAQUIN HILLS: Upper Laguna Canyon, Laguna Lake 1 (Upper Laguna Lake), north basin, c.a. 5.1 kn ENE summit Signal Hill. Laguna Coast Wilderness Park 113 Comment
  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
  RSA394864  Cuscuta salina Anstruther Davidson 1907-9-1 1780 a Orange Newport Comment
  RSA70998  Cuscuta salina F. W. Peirson 1924-8-29 5080 Orange 2.5 miles from Balboa on road inland along creek. Comment
  RSA751521  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts 2008-8-7 35992 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 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
  SD51889  Cycloloma atriplicifolium Peter H. Raven 1961-10-15 16848 Orange Santa Ana River bed at Anaheim Street crossing, Anaheim. 60 Comment
  RSA478739  Cycloloma atriplicifolium Joseph A. Ewan 1932-7-29 7729 Orange Santa Ana River near Costa Mesa. Comment
  RSA65888  Cycloloma atriplicifolium F. W. Peirson 1924-8-29 5061 Orange Santa Ana River, bridge near Santa Ana. Comment
  IRVC14840  Cynara cardunculus B. Newman 1965-3-14 Orange Dana Point Comment
  UCR4614  Cynara cardunculus John Dean 1965-1 s.n. Orange Hwy between Corona Del Mar & Santa Ana 23 Comment
  RSA0042531  Cynodon dactylon Fred M. Roberts 2013-5-30 7778 Orange Lomas de Santiago: Santiago Creek wash, at Santiago Canyon Road bridge (south side), 0.3km W jct. Silverado and Santiago Canyon Roads. 299 Comment
  RSA678742  Cynodon dactylon Valerie L. Soza, Kenneth Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1112 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA232217  Cynodon dactylon James Henrickson 1970-7-24 4992 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  POM201509  Cyperus eragrostis L. M. Booth 836 Orange Santa Ana Canyon. Comment
  RSA798098  Cyperus eragrostis Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49572 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  OBI17023  Cyperus erythrorhizos Carl B. Wolf 1937-9-23 9366 Orange Rancho Santa Ana, Santa Ana Cyn 122 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
  RSA725529  Cyperus esculentus Fred M. Roberts 2007-9-11 6573 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  POM210903  Cyperus esculentus L. M. Booth 1932-7-25 1310 Orange Santa Ana River, 1 1/2 miles from ocean. Comment
  RSA92102  Cyperus esculentus F. W. Peirson 1923-9-6 4032 Orange Along canal east of Olive. Comment
  RSA153444  Cyperus laevigatus F. R. Fosberg 1931-6-19 746 Orange Carbon Canyon, Puente Hills. Comment
  UC729958  Cyperus laevigatus Carl B. Wolf 1932-7-2 3812 Orange 1/8 mi. below La Vida Springs (Carbon Canyon); Carbon Canyon 213 Comment
  RSA797602  Cyperus niger var. capitatus Robert F. Thorne 1977-11-21 49999 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA713567  Cyperus odoratus R. E. Riefner Jr. 2005-7-9 5 -551 Orange City of Huntington Beach, Huntington Central Park, Goldenwest St. near Slater Ave. 2 Comment
  RSA725964  Cyperus odoratus R. E. Riefner 2005-10-27 05 -728 Orange South Coast: Huntington Beach, Huntington Central Park near Goldenwest St. 1 Comment
  CAS-BOT-BC538087  Cyrtomium falcatum R. E. Riefner, Jr. 2012-1-16 12 -5 Orange City of Newport Beach, Corona Del Mar, beach area W of Morning Canyon Rd 1 Comment
  RSA739276  Cyrtomium falcatum R. E. Riefner 2009-1-3 83 Orange Orange County: city of Newport Beach, N Star Beach, vicinity of N Star Ln and White Cliffs Dr. 4 Comment
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Dec 20 2012
  SD260850  Cyrtomium falcatum R. E. Jr. Riefner 2012-1-26 12 11 Orange City of Laguna Beach, Aliso Creek Beach, rocky intertidal area. 2 Comment
  UC2031956  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-16 12 -5 Orange City of Newport Beach, Corona Del Mar, beach area west of Morning Canyon Road Comment
  UCD169091  Cyrtomium falcatum R. E. Riefner Jr. 2011-7-7 11- 87 Orange City of Dana Point, S of Mussel Cove, N of Salt Creek Beach Park. 4 Comment
  UCR182824  Cyrtomium falcatum R. E. Riefner Jr. 2006-9-5 06- 417 Orange Southern Coast, Corona del Mar, Ocean Blvd. near Iris Ave. 11 Comment
  UCR241041  Cyrtomium falcatum Robert DeRuff 2010-1 487 Orange South Coast, Upper Newport Bay, near Back Bay Dr., below Eastbluff North 5 Comment
  RSA790026  Datisca glomerata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49563 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCR174179  Datisca glomerata A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33019 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
  SD245347  Datisca glomerata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49618 Orange Santa Ana Mountains: Bluffs above San Juan Creek, about 1 mile above San Juan Fire Station. Comment
  SEINET8731612 Image available Datura meteloides Jean Coulson 1959-1 s.n. Orange Santa Anna Mts.; 2.1 miles E. on Esperanz Road from Orangethorpe. On S. side of road. Comment
  CDA23138  Datura stramonium Mark A. Elvin, D. G. Kelch 2006-12-9 5321 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  IRVC29795  Datura stramonium Mark A. Elvin, Dean Kelch 2006-12-9 5321 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  RSA421912  Datura wrightii Albert J. Perkins 1922-11-22 s.n. Orange Laguna heights 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
  CAS-BOT-BC299324  Deinandra fasciculata Carl B. Wolf 1932-7-2 3811 Orange Valencia Ave., Olinda opposite the Olinda Pilgrim Church 152 Comment
  CAS-BOT-BC299327  Deinandra fasciculata David D. Keck 1932-9-29 1898 Orange Ca. 5 mi. S. of Santa Ana on road to Newport Beach Comment
  CAS-BOT-BC299330  Deinandra fasciculata H. M. Hall 1930-11-4 12994 Orange South of Capistrano on mesa about one mile from the sea Comment
  RSA0073652  Deinandra paniculata Fred M. Roberts 2014-7-25 7882 Orange South Coastal Plain: San Joaquin Hills: Laguna Canyon, Nix Nature Center, Laguna Coast Wilderness Park, about 4.4 km E Signal Peak. 126 Comment
  UCSB57556  Deinandra paniculata Roberts, Fred 1986-6-27 Orange Mission Viejo; Cabot Rd. across from Nellie Gail Rd., UTM 3716250mN, 437500mE 100 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
  UCR132978  Delphinium parryi Adrian Wolf 2000-4-15 460 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Baker Canyon Road 335 Comment
  UCR192230  Delphinium parryi A. C. Sanders, Fred M. Roberts 2008-5-6 35262 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  CAS-BOT-BC82948  Dendromecon rigida P. C. Everett 1935-6-19 7233 Orange Santa Ana Mountains, Main Divide Motorway 7 miles from summit Santiago Peak (Southeast). 1280 Comment
  UC1126384  Dendromecon rigida J. B. Spring 1931-3-18 25 Orange Black Star Canyon Corona Quadrangle 609 Comment
  UCSB47986  Dendromecon rigida Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, 0.2km west of Trabuco Peak, Santa Ana Mtns. 1347 Comment
  CAS-BOT-BC43190  Descurainia pinnata subsp. brachycarpa Carl B. Wolf 1932-3-8 2681 Orange 0.5 mile north of Corona Del Mar. Borders of Newport Bay. 7 Comment
  POM202601  Descurainia pinnata subsp. halictorum L. M. Booth 1932-5-12 1047 Orange Newport Bay. Comment
  UCR267190  Descurainia pinnata subsp. halictorum Fred M. Roberts 2010-3-12 7183 Orange Southeast Coast, DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c. 150 meters SE Interpretive Center 50 Comment
  RSA1322  Dicentra ochroleuca J. T. Howell 1928-7-10 1096 Orange Black Star Canyon, Santa Ana Mts. 701 Comment
  RSA681019  Dichelostemma capitatum subsp. capitatum Fred M. Roberts, David E. Bramlet 2003-3-7 5567 Orange Donna O Neill Land Conservancy; West slopes of Christianitos Canyon, Middle Ridge Trail, 0.1km NW Gato Gate. 123 Comment
  UCSB12534  Dichelostemma capitatum subsp. capitatum Whittington, M. 1962-4-20 Orange Back Newport Bay about 250 yards south of salt works, Newport Comment
  UCR67008  Digitaria sanguinalis A. C. Sanders 1990-10-6 10181 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  RSA0019266  Dimorphotheca ecklonis Fred M. Roberts 2008-10-9 7122 Orange Dana Point: Dana Point Headlands, CNLM Preserve, at base of cliff adjacent to Dana Strands Beach, 0.8km WNW Marine Institute (Dana Point Harbor). 3 Comment
  IRVC27449  Diospyros lycioides A. C. Sanders, Mark A. Elvin 2003-10-12 27331 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 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
  SEINET3412116 Image available Diplachne fusca var. uninervia Pat Sawyer 34 Orange from Back Bay area at Newport Beach Comment
  CAS-BOT-BC152059  Diplacus longiflorus John Thomas Howell; Alice Eastwood 1937-4-24 3929 Orange 2 miles east of San Juan Hot Springs Comment
  CAS-BOT-BC152060  Diplacus longiflorus H. E. McMinn 1949-7-9 5598 Orange Ca. 2 miles east of San Juan Capistrano, San Juan Pass, Highway 74 Comment
  SEINET8733132 Image available Diplacus longiflorus Jean Coulson 1959-1 s.n. Orange Santa Anna Mts. Orange County California. 1.1 mi. W. of Orange & Riverside County line on Highway 18. On S. side of road in small depression. 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
  CAS-BOT-BC43551  Diplotaxis muralis Peter H. Raven 1962-3-27 16992 Orange Site of Rancho Santa Ana, near Anaheim. 182 Comment
  CAS-BOT-BC43561  Diplotaxis tenuifolia Helen D. Geis 1902-1-1 544 Orange Santa Ana. Comment
  CDA3678  Diplotaxis tenuifolia Margaret Bellue, Tubbs, Johnson Oct 1944 Orange Bataxia Street Crossing, Santa Fe. 0 Comment
  POM20994  Diplotaxis tenuifolia J. Valdes 1924-1-25 s.n. Orange Between Tustin and Santa Ana. Comment
  UC284738  Distichlis spicata Carl B. Wolf 1932-6-28 3785 Orange Bryant Ranch, edge of field on Bryant Ave. west of northeast corner of NW 40 of SE 160 91 Comment
  UCR158165  Distichlis spicata Adrian Wolf 1998-5-27 338 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  UCSB47954  Distichlis spicata Roberts, D. 1980-5-4 Orange North end of Camino Capistrano Rd; 2nd telephone pole from the end 30 Comment
  UC2062535  Distichlis spicata subsp. spicata Hester L. Bell with Anna L. Bell 2002-5-1 259 Orange Shellmaker Road in Lower Newport Bay, near Shellmaker Island and Upper Newport Bay Reserve. Comment
  LA208047  Drymocallis glandulosa W. Pequegnat; 1938-6-15 sn Orange Santa Ana Mountains, Santiago Peak 1734 Comment
  RSA699860  Drymocallis glandulosa Minor Warne 1934-04 s.n. Orange Laguna Canyon Forks 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
  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
  RSA311324  Dryopteris arguta R. F. Thorne 1963-7-26 32847 Orange Near Beek's Spring; Tin Mine Canyon; Trabuco District, Santa Ana Mountains, Cleveland National Forest. 716 Comment
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Apr 25 2011
  RSA749640  Dryopteris arguta D. E. Bramlet 2008-4-1 4138 Orange Upper Hicks Canyon, 24m S of the Haul Road 302 Comment
  UCR138439  Dryopteris arguta R. E. Riefner Jr. 2000-3-26 20 149 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Fremont Canyon, north of major stream fork along west channel drainage 335 Comment
  NY387869  Dudleya R. V. Moran 1948-6-23 3097 Orange North-facing cliff near mouth of Aliso Canyon, south of Laguna Beach. 7.6 Comment
  SD45413  Dudleya blochmaniae subsp. blochmaniae Reid Moran 1950-4-24 3388 Orange San Clemente, atop sea bluffs. Comment
  UCSB52867  Dudleya blochmaniae subsp. blochmaniae Roberts, Fred 1983-4-24 Orange Dana Point Headlands: south of Pacific Coast Hwy.; 0.5 km. NW Dana Point Harbor; 0.5 km. SSW Richard Henery Dana Sch. 85 Comment
  UCR159829  Dudleya cymosa Valerie Soza, LeRoy Gross 1999-6-7 473 Orange Santa Ana Mountains, West side of Modjeska Peak, along Main Divide Road 1448 Comment
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Jun 15 2013
  POM296489  Dudleya lanceolata Lyman Benson 1950-4-29 I- 4339 Orange South end of San Clemente. Hill 1/2 mile from ocean. 152 Comment
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Oct 23 2014
  RSA278324  Dudleya lanceolata C. W. Tilforth, W. Wisura 1979-5-23 s.n. Orange Mouth of Aliso Canyon, south Laguna. Comment
  RSA346  Dudleya lanceolata J. T. Howell 1927-7-3 255 Orange Claymine Canyon near Sierra Peak. 305 Comment
  UC933255  Dudleya lanceolata Reid Moran 1950-4-24 3390 Orange San Clemente Comment
  CAS-BOT-BC411406  Dudleya lanceolata K. Nakai 1978-2-5 211 Orange Aliso Canyon, ca. 200 m E of Calif. Hwy 1 on N facing cliffs 10 Comment
  RSA773547  Dudleya multicaulis Fred M. Roberts 2008-6-10 7037 Orange Lomas de Santiago: Loma Ridge, above and to the west of the Haul Road, 2.3 km NNW Bee Peak. Irvine Ranch Conservancy 429 Comment
  RSA0062957  Dudleya pulverulenta subsp. pulverulenta Fred M. Roberts 2008-7-10 7076 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  CAS-BOT-BC109742  Dudleya stolonifera R. V. Moran 1949-7-2 3287 Orange Near mouth of Aliso Canyon, south of Laguna Beach. Comment
  IRVC25030  Dudleya stolonifera Fred M. Roberts 1984-4-29 1360 Orange Temple Hill above Laguna Canyon, 6.5km SE Signal Peak; 0.6km E Bench Mark 104, Laguna Beach 195 Comment
  SEINET3089344  Dudleya stolonifera Reid Moran 1977-1 Orange Comment
  CAS-BOT-BC109744  Dudleya stolonifera Reid Moran 1950-5-24 3411 Orange Laguna Canyon, 1.5 miles above canyon mouth and 1.7 mile below Toro Road junction. 243 Comment
  CAS-BOT-BC109771  Dudleya viscida E. K. Balls 1936-6-17 19736 Orange Santa Ana Mountains, San Juan Canyon, along Ortega Highway, 0.6 mile below San Juan Hot Springs. Comment
  RSA17568  Dudleya viscida C. B. Wolf 1936-6-17 2596 Orange Santa Ana Mts., along Ortega Hwy, 6/10 mi below San Juan Hot Springs. 182 Comment
  SD236267  Dysphania multifida A. C. Sanders, Fred M. Roberts 2008-6-17 35476 Orange Peninsular Range; Santa Ana Mountains: Lomas de Santiago, Agustine staging area near Limestone Canyon Rd gate at Santiago Canyon Road (Black Star Canyon 7.5'Q) 259 Comment
  CAS-BOT-BC197032  Echinochloa colona E. R. Johnson 1936-7-10 8104 Orange Rancho Santa Ana, Santa Ana Canyon Vegetable Garden 121 Comment
  CAS-BOT-BC197034  Echinochloa colona E. R. Johnson 1936-7-10 8104 Orange Rancho Santa Ana, Santa Ana Canyon Vegetable Garden 121 Comment
  UCD60916  Echinochloa crus-galli Ira L. Wiggins 1965-9-26 20261 Orange Roadside at west end of Orangethorpe Estates subdivision, near Atwood. Comment
  UCR154271  Echinochloa crus-galli Mark A. Elvin 2004-5-2 3426 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  CAS-BOT-BC445609  Echinodorus berteroi Le Roy Abrams 1901-6-1 1777 Orange Laguna Comment
  RSA443824  Echinodorus berteroi 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
  RSA794758  Echinodorus berteroi Justin M. Wood, Dustin M. Ray 2010-10-1 2775 Orange Santa Ana Canyon: Santa Ana River plus/minus 1 mi downstream of Gypsum Canyon Bridge, just upstream of large commercial development. Near drain outflow from Flood Control Levee on south side of channel. 110 Comment
  UCR113444  Echinodorus berteroi R. E. Riefner Jr. 2000-8-21 20- 728 Orange Santa Ana Mountains: Irvine Lake [Santiago Reservoir], first cove southeast of the dam 238 Comment
  RSA724039  Ehrharta erecta R. E. Riefner 2004-5-31 4 -194 Orange City of Lake Forest; Serrano Creek, SE of Bake Pkwy. 107 Comment
  SBBG128733  Ehrharta erecta R. E. Riefner Jr. 2012-2-1 12 -15 Orange Dana Point Harbor, vicinity of Puerto Pl and Dana Point Harbor Drive; Dana Point 2 Comment
  UC1116258  Eleocharis montevidensis F. R. Fosberg 1931-6-21 748 Orange Silverado Canyon Santa Ana Mountains Comment
  UC455131  Eleocharis montevidensis I. J. Condit 1908-7-21 Orange Los Alamitos Comment
  RSA799616  Eleocharis palustris Justin M. Wood 2011-4-12 3661 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  CAS-BOT-BC112163  Eleocharis radicans Steve Boyd; Timothy S. Ross 1994-9-14 8354 Orange Lucas Canyon just downstream of Lucas Canuyon Trail Crossing. 304 Comment
  UCR174194  Eleocharis radicans A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33024 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
  RSA735119  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
  RSA735124  Eleusine coracana subsp. africana R. E. Riefner 2005-10-5 5 -718 Orange City of Yorba Linda, near Horseshoe Bend along the Santa Ana River. 102 Comment
  RSA743554  Eleusine coracana subsp. africana R. E. Riefner 2005-9-20 5 -671 Orange City of San Clemente, along El Camino Read ca. 0.15 mi S of intersection with Los Molinos Rd. 35 Comment
  POM365352  Elymus glaucus subsp. glaucus H. L. Bauer 1925-4-20 s.n. Orange Trabuco Canyon., [33 deg 40'05N, 117 deg 33'45W] Comment
  RSA539385  Emmenanthe penduliflora Fred M. Roberts, Carol A. Roberts 1988-6-10 4093 Orange Santa Ana Mtns: Main Divede Truck Trail, Modjeska Peak, 1.1 km SW summit. 465 Comment
  RSA552942  Emmenanthe penduliflora Fred M. Roberts, Carol A. Roberts 1989-4-20 4299 Orange Santa Ana Mtns.: upper Lion Canyon along San Juan Trail just south of Blue Jay Campground, 2.5km SE Los Pinos Peak. 980 Comment
  HSC5474  Encelia californica J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  IRVC14677  Encelia californica A. S. Boughey 1968-7-16 423 Orange road to Signal Peak. San Joaquin Hills Comment
  LA202459  Encelia californica Lawrence M. Booth; 1932-5-12 1029 Orange Newport Bay Comment
  RSA696885  Encelia californica Kenneth Beard 1934-03 s.n. Orange Waste land along road near Placentia. Comment
  RSA732174  Encelia californica A. C. Sanders, Fred M. Roberts 2008-3-25 34544 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA799951  Encelia californica D. M. Ray 2011-1-19 3 Orange South Coast: Santa Ana River: along right of way road just west of Least Tern Island. 0 Comment
  UCR197671  Epilobium brachycarpum A. C. Sanders, Fred M. Roberts 2008-9-18 36094 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  CAS-BOT-BC166349  Epilobium canum subsp. canum John Thomas Howell 1927-7-28 2868 Orange Hills on n. side of Santa Ana [Canon] Canyon 182 Comment
  RSA72094  Epilobium canum subsp. canum F. W. Peirson 1923-9-7 4040 Orange Summit of Santiago Peak. Santa Ana Mountains. 1723 Comment
  LA206111  Epilobium canum subsp. latifolium W. E. Pequegnat; August 1937 7 Orange Santa Ana Mountains, Santiago Peak, 8 mi. S of Corona 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
  POM201878  Epilobium ciliatum subsp. ciliatum L. M. Booth 1932-6-4 1145 Orange Newport Lagoon. Comment
  POM6436  Epilobium ciliatum subsp. ciliatum P. A. Munz, L. T. Street, G. Williams 1919-5-4 2680 Orange Laguna Canyon. Comment
  RSA799940  Epilobium pygmaeum Justin M. Wood 2011-6-28 4303 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. Just W of parking area. 25 Comment
  RSA698282  Epilobium watsonii var. franciscanum Snow 1929-3-18 39 Orange Santa Ana River. Comment
  UCR193837  Epipactis gigantea A. C. Sanders, Fred M. Roberts 2008-7-16 35844 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  RSA0051389  Epipactis gigantea Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49608 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  CAS-BOT-BC57385  Equisetum laevigatum Crawford; Johnston 1917-6-9 1216 Orange Santa Ana River near Corona Comment
  UC1543090  Equisetum laevigatum Donald G. Nelson 1935-4-6 266 Orange e San Juan Capistrano (canyon 200-300 ft below main Hwy., ca. 4 mi from Summit); Santa Ana Mts., San Juan Canyon Comment
  POM21175  Eragrostis cilianensis Helen D. Geis 1902-6-6 s.n. Orange Roadside by Orange bridge. Comment
  POM298879  Eragrostis mexicana subsp. virescens Frank W. Gould 1944-6-25 2362 Orange Tournat Ranch, Garden Grove. Comment
  CHSC116469  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
  SD245210  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
  UCD64312  Eragrostis pectinacea Beecher Crampton 1965-10-27 7583 Orange 2 miles E of Irvine, UC South Coast Field Station. Comment
  UCD33246  Eremalche exilis Beecher Crampton 1967-5-23 7956 Orange Orange County, 4 miles east of Irvine, UC South Coast Field Station. Comment
  UC23530 Image available Eriastrum densifolium subsp. austromontanum C. W. Hamlin 1896-1 50 Orange Buena Park Comment
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Nov 20 2013
  RSA0119699  Eriastrum densifolium subsp. sanctorum J. T. Howell 1927-8-13 2985 Orange Santa Ana Canyon Comment
  UCR193057  Eriastrum sapphirinum A. C. Sanders, Fred M. Roberts 2008-6-17 35505 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA0121318  Eriastrum sapphirinum subsp. dasyanthum Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment
  RSA759242  Ericameria cuneata Robt Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak. W Facing slope within 2 meters of the access road up Modjeska Peak. Approximately midway between the peak's south-facing slope and the sharp bend in extreme N end of the road. 1643 Comment
  CAS-BOT-BC299499  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 2943 Orange Rancho Santa Ana, Santa Ana Canyon 207 Comment
  RSA0126613  Ericameria palmeri var. pachylepis Fred M. Roberts 2012-4-27 7537 Orange Lomas de Santiago: Loma Ridge, west of SR 241, tributary to Las Flores Cyn., near East Loma Ridge Road, 1.9 km SW Irvine Lake Park Campground & 1.2 km ESE Orange Co. Emergency Operations Center (Hill 1311). 350 Comment
  UCR239618  Ericameria palmeri var. pachylepis Fred M. Roberts 2012-4-27 7537 Orange Lomas de Santiago, Loma Ridge, west of SR 241, tributary to 'Las Flores' Canyon, 1.9 km southwest of Irvine Lake Park Campground and 1.2 km east-souteast of Orange County Emergency Operations Center, Hill 1311 350 Comment
  UCR45136  Ericameria palmeri var. pachylepis B. G. Pitzer, L. F. LaPre 1986-10-20 s.n. Orange Santa Ana Mtns, Summit of Hicks Canyon on a private road (continuation of Jeffrey Road), c. 2.4 mi. above the gun club 274 Comment
  RSA0061165  Ericameria parishii Robt. Allen 2007-8-11 s.n. Orange Santa Ana Mountains region: Silverado Canyon. Along Maple Springs Road (5S04). 1227 Comment
  JEPS19148  Ericameria pinifolia John Thomas Howell 1927-10-23 3172 Orange Rancho Santa Ana Santa Ana Canyon, Rancho Santa Ana 152 Comment
  RSA842  Ericameria pinifolia J. T. Howell 1927-10-23 770 Orange On road to Aliso Canyon Rancho Santa Ana. 152 Comment
  UC1118806  Ericameria pinifolia A. Lewis 1934-4-1 397 Orange San Joaquin Hills Corona Quad., San Joaquin Hills 304 Comment
  UCSB52475  Ericameria pinifolia Roberts, Fred 1982-10-14 Orange Laguna Beach; Temple Hill, east flank, 1.0km NNW Top of the World School; 1.9km ESE Bench Mark 104 244 Comment
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Jan 25 2020
  POM6358  Erigeron foliosus var. stenophyllus P. A. Munz 1919-5-3 2656 Orange Santa Ana River Canyon. Comment
  LA205566  Eriodictyon crassifolium A. M. Johnson; 1932-4-23 4020 Orange Orange Comment
  RSA455040  Eriodictyon crassifolium Theodore Payne 1909-01 2338 Orange Santa Ana Mt. Comment
  RSA550599  Eriodictyon crassifolium Fred M. Roberts 1989-4-26 4315 Orange Lomas de Santiago: Lower Santiago Canyon, 10.1 km SW Sierra Peak, ca. 1.3 km NW Irvine Lake spillway. 195 Comment
  UCD169761  Eriodictyon crassifolium R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49682 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  UCSB47628  Eriodictyon crassifolium Roberts, Jr., Fred 1980-5-3 Orange Santa Ana Mtns.; Main Divide Truck Trail, 1.1 km. SE Blue Jay Campground; 2.6 km. WSW El Cariso Guard Station 902 Comment
  CAS-BOT-BC189120  Eriodictyon crassifolium var. crassifolium Agnes M. Bowman 1899-6-1 s.n. Orange In Santiago Canyon 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
  RSA5321  Eriodictyon trichocalyx B. D. Stark 1932-12-30 4474 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  IRVC27014  Eriogonum cinereum Peter A. Bowler 2003-4-20 s.n. Orange UCI Arboretum Southern Coastal 15 Comment
  UCR103282  Eriogonum elongatum B. G. Pitzer, T. Tennant 1997-11-8 3369 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
  UCR193828  Eriogonum elongatum A. C. Sanders, Fred M. Roberts 2008-7-16 35829 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  CAS-BOT-BC249759  Eriogonum elongatum var. elongatum James L. Reveal; Caroline G. Reveal 1972-8-6 2845 Orange Along California Highway 74, San Juan Canyon, Santa Ana Mountains, 2.8 miles east of the Cleveland National Forest line and about 14 miles east-northeast of San Juan Capistrano Comment
  POM201739  Eriogonum fasciculatum L. M. Booth 1932-7-27 s.n. Orange Corona del Mar, Newport Beach, Bluff Ravine Comment
  SEINET182348  Eriogonum fasciculatum Lawrence M. Booth 1932-5-18 1057 Orange Newport bay Bluff Slopes Comment
  CAS-BOT-BC253219  Eriogonum fasciculatum var. fasciculatum D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach Comment
  SEINET11946392  Eriogonum fasciculatum var. foliolosum S. A. Thompson, Rawlins, J. E. 1988-8-27 5266 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  SBBG62090  Eriogonum gracile J. T. Howell 1927-7-16 2791 Orange N side of Santa Ana Cyn 152 Comment
  UCSB48007  Eriogonum gracile 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
  UCSB56685  Eriogonum gracile Roberts, Fred 1982-9-20 Orange Santa Ana Mts; Chiquito Basin, San Juan Trail; 2.2km SW Blue Jay Campground; 3.0km S Los Pinos Peak 905 Comment
  RSA759257  Eriogonum nudum subsp. pauciflorum Robt. Allen, D. Taylor 2008-7-19 s.n. Orange Upper Silverado Canyon, along Maple Springs Truck Trail, 5.7 road miles up from Maple Springs forest gate, 0.8 road mi down from junction with Main Divide Truck Trail. Near entrance tp short road spur 1313 Comment
  CAS-BOT-BC257874  Eriogonum parvifolium David D. Keck 1932-9-30 1904 Orange 2 mi. W. of Laguna Beach Comment
  UCR46823  Eriogonum parvifolium T. R. Van Devender, R. K. Van Devender 1986-11-16 86- 214 Orange 3.2 miles northwest of Laguna Beach on Highway 1 at Pelican Point Comment
  CAS-BOT-BC263017  Eriogonum thurberi Helen D. Geis 1902-1-1 532 Orange Santiago Cr. Comment
  RSA0054886  Eriogonum virgatum Keith E. Hoffmaster 1933-10-29 485 Orange Santa Ana mts. [Orange or Riverside]. Comment
  UCR252207  Eriophyllum confertiflorum Amanda C. Swanson 2013-4-21 23 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  IRVC15150  Eriophyllum confertiflorum var. confertiflorum A. S. Boughey 1968-7-9 380403 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  LA203539  Eriophyllum confertiflorum var. confertiflorum W. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA590950  Erodium botrys Fred M. Roberts 1991-5-2 4774 Orange San Joaqui Hills, Laguna Canyon, Laguna Laurel, Just W of Laguna Canyon Road, 2km N jct El Toro Road, 4.5km E Signal Peak. 110 Comment
  HSC8470  Erodium cicutarium C. L. Hitchcock 1966-3-15 24137 Orange 1/2 mi. E of Brea Comment
  HSC8494  Erodium cicutarium J. W. Johnson 1961-3-29 Orange Newport Beach, along upper Newport Bay Comment
  UCR241908  Erodium cicutarium Fred M. Roberts 2012-4-24 7527 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  RSA696171  Erysimum capitatum Keith E. Hoffmaster 1932-4-17 s.n. Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  UCR104608  Eschscholzia californica B. G. Pitzer 1996-4-30 2759 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCSB18078  Eschscholzia californica Shaw, Merrilee 1963-4-10 Orange Fernlead Drive, at intersection with Bayshore Drive, 1/2 mile S of U.S. Highway 101, Corona del Mar 24 Comment
  IRVC29095  Eschscholzia californica var. peninsularis Fred M. Roberts 1989-3-17 4210 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  UC1608074  Eucalyptus amplifolia Dave Goodward 1987-4-16 5 Orange e. Tustin (1 mi. n.e. of Irvine Blvd./Myford Rd. intersection, Boy Scout Camp in Peters Canyon, Irvine Ranch, s. of tree 4 by 3 trees); Irvine Ranch, Peters Canyon, Boy Scout Camp 121 Comment
  RSA0010837  Eucalyptus camaldulensis T. B. Salvato, Billy Deane 2006-10-16 1928 Orange Irvine, San Diego Creek flood control channel, between Michelson Driveand the 405 Fwy. 9 Comment
  RSA603249  Eucrypta chrysanthemifolia R. S. Woglum 1939-5-14 s.n. Orange Peninsular Ranges: Santa Ana Mountains, Trabuco Canyon. Comment
  JEPS1726  Eucrypta chrysanthemifolia var. chrysanthemifolia Alice King 1908-1 Orange Anaheim Comment
  RSA657747  Eucrypta chrysanthemifolia var. chrysanthemifolia Ken Greby 1985-4-18 11 Orange alongside Laguna Canyon Rd. 100 m. N of L. C. R., 2.5 km. NE of El Toro Rd. 53 Comment
  POM346910  Euphorbia crenulata Marcus E. Jones 1926-3-13 s.n Orange Santa Ana Canyon. Comment
  RSA2077  Euphorbia crenulata C. B. Wolf 1931-3-6 1852 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  CAS-BOT-BC413812  Euphorbia misera R. E. Riefner, Jr. 2013-11-15 13 -340 Orange City of Newport Beach, Inspiration Point, vicinity of Orchard St. and Ocean Blvd., NW of Little Corona Beach 7 Comment
  SEINET7249217  Euphorbia misera R. E. Riefner Jr. 2012-1 12 -518 Orange City of Dana Point, Dana Point Harbor, 'Bluff Top Trail' located near Camino Capistrano and Violet Latern Streets. 35 Comment
  UCD170387  Euphorbia misera R. E. Riefner Jr. 2012-12-5 12- 587 Orange City of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road. 8 Comment
  UCR193325  Euphorbia peplus A. C. Sanders, T. B. Salvato 2008-5-13 35371 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
  RSA697596  Euphorbia polycarpa Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  UCR191355  Euphorbia polycarpa A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34642 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
  RSA0104833  Euphorbia polycarpa var. polycarpa A. S. Boughey 140 Orange Santa Ana Mountains: Ortega Hwy., ca 1 mi east of San Juan Guard Sta. Comment
  RSA0126620  Euphorbia polycarpa var. polycarpa Fred M. Roberts 2012-4-24 7514 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
  RSA0104831  Euphorbia polycarpa var. polycarpa C. Thompson 1965-2-20 s.n. Orange Cameo Shores, Corona Del Mar. Comment
  RSA0020540  Euphorbia serpens Fred M. Roberts 2007-8-6 6559 Orange San Joaquin Hills: Laguna Beach, Laguna Cyn. on east side of Laguna Cyn. Rd. adj. to dog park, 1.2 km S (air) from El Toro Road and 1.8 km WSW Moulton Survey Mk. 52 Comment
  RSA234503  Euthamia occidentalis James Henrickson 1970-9-5 5343 Orange 3 miles NW of Huntinton Beach; NW of Bolsa Chica Salt Marsh. Sea level. 0 Comment
  RSA942  Euthamia occidentalis J. T. Howell 1927-10-22 765 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA944  Euthamia occidentalis J. T. Howell 1927-10-29 777 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA696043  Felicia amelloides Anonymous 1933-10-13 s.n. Orange Santa Ana Comment
  UCR191422  Festuca myuros A. C. Sanders, Fred M. Roberts 2008-4-8 34772 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  UCR191325  Festuca octoflora A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34608 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  SD28080  Festuca temulenta E. R. Johnson 1932-5-18 3638 Orange Rancho Santa Ana Botanic Garden, east edge of grain field bordering Rancho. 198 Comment
  CDA23120  Ficus carica Mark A. Elvin, D. G. Kelch 2006-12-9 5315 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  CAS-BOT-BC487556  Ficus microcarpa R. E. Riefner, Jr. 2014-2-24 14 -66 Orange City of Dana Point, W ca 0.1 mi from Island Way along Dana Point Harbor Dr., cliff immediately S of Santa Clara Ave. and Amber Lantern St. 11 Comment
  CAS-BOT-BC502096  Ficus microcarpa R. E. Riefner, Jr. 2015-8-30 15 -382 Orange City of Anaheim, Pearson Park, SE section of park, N of N. Helena St, and W. Cypress St., near jct. of N. Lemon St., and W. Cypress St. 44 Comment
  RSA0116290  Ficus microcarpa R. E. Riefner Jr. 2014-7-14 14 -169 Orange City of Newport Beach, N side of Pacific Coast Highway at Riverside Ave. 6 Comment
  UC2046888  Ficus microcarpa R. E. Riefner Jr. 2015-8-27 15 -359 Orange City of Newport Beach, Corona del Mar, on Marguerite Ave. between Fifth Ave. and Fourth Ave. Comment
  UCR267279  Ficus microcarpa R. E. Riefner Jr. 2015-8-27 15- 359 Orange City of Newport Beach, Corona del Mar, on Marguerite Ave. between 5th Ave. and 4th Ave. 41 Comment
  IRVC22037  Filago californica Fred M. Roberts 1983-5-4 1028 Orange Temple Hill, Upper Rancho Laguna Canyon, 1.7km SSW Top of the World Sch.; 1.4km ENE Cactus Point, Laguna Beach 200 Comment
  UCR238211  Filago californica Mark A. Elvin 2003-3-30 2390 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 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
  SD120876  Frangula californica subsp. cuspidata Reid Moran 1975-7-18 22596 Orange Bottom of Trabuco Canyon, Santa Ana Mountains 725 Comment
  RSA391396  Frankenia grandifolia Albert J. Perkins 1908-5-30 s.n. Orange Laguna Mesa Comment
  RSA697030  Frankenia grandifolia Keith E. Hoffmaster 1927-6-13 s.n. Orange Near Santa Ana. Comment
  RSA80823  Frankenia grandifolia var. campestris F. W. Peirson 1924-5-31 4659 Orange Laguna Canyon near Laguna Beach 91 Comment
  CAS-BOT-BC223804  Frankenia salina Joseph Andorfer Ewan 1932-7-28 7701 Orange Corona del Mar Comment
  IRVC1371  Frankenia salina Dorleene Van Gorden 1965-5-1 s.n. Orange Newport Back Bay Southern Coastal Comment
  IRVC15189  Frankenia salina Helen Smith 1975-4-21 s.n. Orange Upper Newport Bay; near opening of Delhi Channel. Southern Coastal Comment
  IRVC21007  Frankenia salina J. B. Anderson 1966-4-12 566 Orange Newport Beach; Backbay, by mud flats above Newport Dunes State Aquatic Park, boat launch platform. Southern Coastal Comment
  IRVC24106  Frankenia salina Fred M. Roberts 1985-9-6 2220 Orange Laguna Beach; Sycamore Hills along Laguna Cyn Rd; N of jct with El Toro Road. Southern Coastal 75 Comment
  IRVC27495  Frankenia salina Mark A. Elvin 2004-5-2 3402 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  SD82963  Frankenia salina C. Davidson 1970-7-25 1494 Orange Bolsa Chica; Signal oil field. Comment
  RSA652040  Fremontodendron californicum L. M. Anderson 1948-2-11 s.n. Orange On property at Rt 1, Box 239A, Santa Ana 183 Comment
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Oct 28 2014
  RSA649055  Fritillaria biflora D. E. Bramlet 2000-4-12 2978 Orange Tributary to Fremont Canyon. the site is 396m northwest of the Edison Spur road and 1.2km southeast of the Fremont ridge road. The locality is 305m southwest of knoll 1515. 372 Comment
  RSA749449  Fritillaria biflora Fred M. Roberts 2009-4-11 6885 Orange Lomas de Santiago: Loma Ridge, upper Dripping Springs Cyn., 0.9 km NE Bee Peak and 1.2 km WNW Dripping Springs. 448 Comment
  SD143727  Galium angustifolium Scott D. White 1997-3-28 4850 Orange Santa Ana Mts; above Modjeska Canyon: Proposed water tank site 424 Comment
  UCR140808  Galium angustifolium Robin G. Marushia 2004-4-16 018 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
  UCR192101  Galium angustifolium A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35287 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR223428  Galium angustifolium Dick Newell, Don Millar 2011-2-15 060 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  RSA632422  Galium angustifolium subsp. angustifolium Valerie L. Soza, LeRoy Gross 1999-6-10 519 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road. 1555 Comment
  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
  SBBG47439  Galium angustifolium subsp. angustifolium N. C. Cooper 1944-6-4 1372 Orange San Juan Cyn 304 Comment
  UCR227752  Galium angustifolium subsp. angustifolium R. F. Thorne 1963-7-26 32825 Orange Santa Ana Mountains, Cleveland National Forest, [vicinity of road from Beek's Spring to Pleasants Peak], Trabuco District 1159 Comment
  POM256705  Galium angustifolium subsp. angustifolium W. Pequegnat 1940-6-15 s.n. Orange Santa Ana Mountains: Modjeska Flat. 1372 Comment
  RSA221069  Galium aparine E. W. Lathrop 1966-5-1 6261 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  RSA752  Galium nuttallii J. T. Howell 1927-6-26 219 Orange Claymine Canyon near Sierra Peak 366 Comment
  RSA704936  Galium nuttallii subsp. nuttallii Fred M. Roberts, David E. Bramlet 2004-4-21 6036 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Shady Canyon, tributary to Cristianitos Cyn., 0.65 km NW Sycamore Gate, 0.70 km W of Cristianitos Road. 148 Comment
  IRVC26431  Galvezia speciosa Mark A. Elvin 2004-2-22 3153 Orange UCI Arboretum Southern Coastal 15 Comment
  UCR193262  Gamochaeta pensylvanica A. C. Sanders, Fred M. Roberts 2008-6-17 35523 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 230 Comment
  UC1122732  Garrya veatchii A. Lewis May 1934 428 Orange Los Pinos Peak; Cleveland National Forest, Elsinore Quad. 1066 Comment
  RSA761932  Gastridium phleoides Suzanne Espino 2005-4-26 3 Orange Santa Ana Mountains, Caspers Wilderness Park, East Ridge Trial. Near water tank at E. 168 Comment
  SEINET179445 Image available Gastridium phleoides L. M. Booth 1932-5-19 1082 Orange Newport Bay Comment
  CDA5174  Gaura drummondii Margaret Bellue 1943-9-1 Orange Sterns, 3 miles east of Yorba Linda. 0 Comment
  CDA5233  Gaura sinuata E. Dudley Aug 1939 Orange 0 Comment
  JEPS61411  Geranium carolinianum Alice King Apr 1908 Orange Santa Ana Mts. Comment
  UC1929937  Geranium carolinianum Scott D. White, Brian Leatherman 1997-5-6 5037 Orange SANTA ANA MTNS: Santiago Canyon area. Unnamed tributary to Santiago Ck. flowing from the SW, directly west of Pancho Canyon. Lomas de Santiago S179. El Toro 7.5' Quad. Comment
  RSA588801  Geranium dissectum Fred M. Roberts 1990-5-7 4597 Orange Rancho Mission Viejo: Ridge south of Blind Canyon, TRW Lease Holding, 4.9 km NE Clemente Survey Marker. 152 Comment
  UCD170631  Geranium incanum 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
  UCR253009  Geranium incanum Robert DeRuff 2012-3-9 580 Orange South Coast, Newport Back Bay, Northstar Beach park near Newport Aquatic Center 5 Comment
  UCR241091  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-16 12- 404 Orange South Coast, City of Dana Point, Dana Point Harbor Drive at Island Way 11 Comment
  RSA470122  Gilia angelensis Anstruther Davidson 1910-03 2474 Orange Corona Del Mar. Comment
  RSA610228  Gilia angelensis Fred M. Roberts, Annie Hoecker, Tony Bomkamp 1997-3-29 4989 Orange Rancho Mission Viejo: Canada Gobernadora, east slope, 1.7 km SW Cliff Survey Mark, 1.7 km N Calif. Rte. 74. 122 Comment
  RSA769341  Gilia angelensis E. W. Lathrop 1974-6-27 7421 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UC133970  Gilia angelensis C. F. Baker 1904-4-1 4111 Orange Anaheim Comment
  UCR219853  Gilia angelensis Fred M. Roberts 1999-4-26 5199 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, tributary to Santiago Canyon Wash on ridge between Limestone Cyn and the wash, 1.4 km SE Silverado School, 2.7 km north Bolero Lookout 358 Comment
  UCR119296  Gilia capitata subsp. abrotanifolia R. E. Riefner Jr. 2000-4-27 20- 388 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running south from Baker Canyon Road to Silverado Road 335 Comment
  UCSB48124  Glebionis coronaria Roberts, Fred 1981-4-11 Orange Highway 74: 5.2km E San Juan Capistrano, near crossing of San Juan Creek 52 Comment
  POM358937  Gnaphalium californicum N. C. Cooper 1949-5-1 3945 Orange San Juan Canyon 610 Comment
  RSA696916  Gnaphalium californicum Mabel Harvey s.n. Orange Silverado Canyon Comment
  RSA663155  Gnaphalium canescens subsp. beneolens R. E. Riefner 2000-8-8 20 -724 Orange NCCP North Ranch Policy Plan Area. NE property; E slope of upper Fremont Cyn.; S of Donaldson Ranch area and S of powerline / National Forest boundary. 454 Comment
  RSA731759  Gnaphalium canescens subsp. microcephalum Fred M. Roberts, Sandy Leatherman 2007-11-9 6646 Orange San Juan Canyon along San Juan Creek, within the community of San Juan Hot Springs. 216 Comment
  RSA603356  Gnaphalium luteoalbum Scott D. White 1997-6-12 5313 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
  RSA701689  Gnaphalium luteoalbum Fred M. Roberts, David E. Bramlet 2003-6-6 5899 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Canyon, 0.86 km SSW Gato Gate and 0.39 km W of Cristianitos Road. 149 Comment
  RSA718964  Gnaphalium luteoalbum Fred M. Roberts, Robert L. Allen 2006-10-8 6416 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
  RSA666098  Gnaphalium palustre Fred M. Roberts, Michelle Lee 2001-6-4 5482 Orange Rancho Mission Viejo: Chiquita Ridge, 0.2km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. 218 Comment
  RSA698232  Godetia bottae Kenneth Beard 1934-05 s.n. Orange Ladd Canyon. Comment
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Oct 31 2011
  RSA698236  Godetia purpurea Kenneth Beard s.n. Orange East of Irvine Park. Comment
  UCR1483  Grindelia camporum B. L. Estes 1960-7-24 s.n. Orange San Clemente, NE corner of Avenida Santa Barbara and Ola Vista. 46 Comment
  UCR193363  Grindelia camporum A. C. Sanders 2008-5-28 35430 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 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
  JEPS41904  Grindelia hirsutula L. M. Booth 1932-5-24 1092 Orange Newport Bay Comment
  UCSB48220  Grindelia hirsutula Roberts, Fred 1981-6-20 Orange Dana Point: 0.7km ENE Dana Hills High School 76 Comment
  RSA753161  Guillenia lasiophylla D. E. Bramlet 2008-3-31 4133 Orange 305m E of Upper Hicks Haul Rd, in Trib to Limestone Cyn., 1km S of Santiago Cyn. Rd. 311 Comment
  RSA638193  Gutierrezia californica Scott D. White 1998-10-15 7188 Orange Yorba Linda: 1/2 mile south of Telegraph Cyn. Between Ohio St. and Fairmont. Proposed for development. 152 Comment
  RSA867  Gutierrezia californica J. T. Howell 1927-9-24 746 Orange Santa Ana Botany Garden 152 Comment
  CAS-BOT-BC302138  Gutierrezia sarothrae John Thomas Howell 1927-7-22 2816 Orange In hills on north side of Santa Ana Canon [Canyon] 182 Comment
  JEPS18975  Gutierrezia sarothrae John Thomas Howell 1927-9-24 3111 Orange Santa Ana Canyon , Rancho Santa Ana 152 Comment
  UCD85224  Hainardia cylindrica A. A. Beetle 1942-4-19 3092 Orange 20 miles S of Santa Ana, road to Laguna. Comment
  RSA753032  Haplopappus squarrosus subsp. grindelioides A. C. Sanders, Fred M. Roberts 2008-9-18 36098 Orange Lomas de Santiago, Santiago Creek Canyon at the highway bridge above Irvine Lake 300 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
  LA203734  Hazardia squarrosa var. grindelioides W. Pequegnat; 1937-8-31 sn Orange Santa Ana Mountains, Indian Canyon, (Seen also in branch of Trabuco Canyon about 3000 ft.) 365 Comment
  RSA797596  Hazardia squarrosa var. grindelioides R. F. Thorne 1977-11-21 49993 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  IRVC23186  Hedera canariensis G. Reynolds 1987-7-7 6 Orange Costa Mesa; at corner of Mesa St. and Santa Ana Ave. Southern Coastal Comment
  SD42290  Hedypnois cretica C. B. Wolf 1938-5-2 9406 Orange Fullerton, Francis Street, 1200 block, east side in vacant lot 60 Comment
  UCR190995  Hedypnois cretica A. C. Sanders, Fred M. Roberts 2008-4-22 35059 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  UCSB48061  Hedypnois cretica Fritzke, S.; Roberts, Fred 1982-4-3 Orange Dana Point Headlands: north of Dana Strand Rd., 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School 80 Comment
  CAS-BOT-BC306303  Hedypnois cretica E. K. Balls 1955-4-4 20433 Orange Mouth of Santa Ana River, w. bank, Hwy. 101 3 Comment
  SD247594  Hedypnois cretica R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49670 Orange Northern Santa Ana Mountains: Coal Canyon (NW of Sierra Peak). Comment
  CAS-BOT-BC402190  Helianthemum scoparium R. F. Thorne; E. W. Lathrop; W. Wisura 1977-4-27 49679 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  LA204753  Helianthemum scoparium W. Pequegnat; 1937-9-1 sn Orange Santa Ana Mountains, Top of Horsethief Trail Comment
  LA204758  Helianthemum scoparium B. R. Lower; 1954-3-28 sn Orange hills behind Laguna Beach Comment
  SFV18100  Helianthemum scoparium J. D. Dilley, J. N. Hogue, D. L. Bishop 1998-4-9 257 Orange Santa Ana Mountains. San Juan Canyon at San Juan Hot Springs just inside western border of Cleveland National Forest. 213 Comment
  UCR224033  Helianthemum scoparium Justin M. Wood 2010-3-31 1448 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
  UCSB18935  Helianthus annuus Cummings, Bob 1963-5-11 Orange U.S. Highway 101 alternate, 2 miles NW of San Clemente Comment
  CDA6543  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, north of El Toro, ca. 11 miles southeast of Tustin. 0 Comment
  UCD132778  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, north of El toro, around 11 miles southeast of Tustin. Comment
  RSA5288  Helianthus gracilentus C. B. Wolf 1932-12-19 4446 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive 762 Comment
  RSA736587  Helianthus gracilentus Keith E. Hoffmaster 1934-5-13 173 Orange Santa Ana Mountains 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
  SEINET6413451  Helianthus gracilentus R. Spellenberg 2014-5-6 14773 Orange On California Highway 1 in South Laguna, 5 air km NNW of Dana Point. 50 Comment
  UCR192093  Helianthus gracilentus A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35293 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  IRVC783  Helianthus petiolaris subsp. petiolaris B. Leach 1964-3-8 Orange hills. El Toro Comment
  UCSB48091  Heliotropium curassavicum Roberts, Jr., Fred 1981-5-2 Orange Mission Viejo: Camino Capistrano, 1.7km N Crown Valley Parkway 49 Comment
  IRVC286  Heliotropium curassavicum subsp. oculatum C. Weir 1965-9-9 Orange Newport Back Bay. Newport Beach Comment
  POM122838  Heliotropium curassavicum var. oculatum Marcus E. Jones 1924-8-26 s.n. Orange Newport. 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
  POM369759  Heliotropium curassavicum var. oculatum A. M. Johnson 1932-4-23 4032 Orange Railroad right of way, N of Orange County Comment
  POM47586  Heliotropium curassavicum var. oculatum I. M. Johnston 1924-8-29 s.n. Orange 3.5 miles N of Balboa. Comment
  RSA202173  Hemizonia australis L. M. Booth 1932-6-7 1169 Orange Newport Lagoon. Comment
  RSA572920  Hemizonia australis J. Mallory 1993-8-27 6366 -D-02 Orange E and north of Cliffs on Mesa, S of Los Patos Ave. and green Street, Bolsa Chica Wetlands. Comment
  POM360262  Hemizonia fasciculata F. R. Fosberg 1930-7-10 455 Orange Anaheim Landing. [Los Angeles Co. on label] Comment
  POM56177  Hemizonia fasciculata H. M. Hall 1906-6-19 7411 Orange Gypsum, Santa Ana Canyon 122 Comment
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Sep 4 2011
  POM5971  Hemizonia fasciculata D. L. Crawford 1915-09 504 Orange Huntington Beach. Comment
  RSA232233  Hemizonia fasciculata James Henrickson 1970-7-25 5069 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March. 0 Comment
  UCR131870  Hemizonia fasciculata J. Mallory, V. McCoy 1995-7-3 6454- 73 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  UCR192078  Hemizonia fasciculata A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35279 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA74880  Hemizonia fasciculata Elroy Robinson 1935-6-26 s.n. Orange Along Santa Fe Railway, El Toro, south of Los Angeles. 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
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May 15 2019
  UCR261698  Hemizonia parryi subsp. australis Dick Newell, Don Millar, Judy Booth 2015-5-27 407 Orange South Coast, Newport Beach, New Delhi Channel near University Drive 4 Comment
  JEPS43407  Hesperocnide tenella Lawrence M. Booth 1932-5-19 1064 Orange Newport Bay Comment
  RSA658198  Heteromeles arbutifolia T. A. Daubert 1991-5-26 657 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, fire road. Comment
  RSA699265  Heteromeles arbutifolia Unspecified s.n. Orange Maple Avenue School Comment
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Oct 7 2013
  UCR239808  Heteromeles arbutifolia O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  UCSB47998  Heteromeles arbutifolia Roberts, Fred 1980-7-7 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.4km ENE San Juan Guard Station; 0.3km W Bench Mark 1100 345 Comment
  IRVC799  Heterotheca grandiflora A. S. Boughey 151 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  SEINET7073546  Heterotheca grandiflora A. G. Vestal 1963-3-27 s.n. Orange Ridge above Cai+-ada Gobernadora. Coordinate datum: NAD27. Comment
  UC1543194  Heterotheca grandiflora Donald G. Nelson 1935-3-23 186 Orange sand pit near dump just s E. Orangethorpe Ave.; East Fullerton Comment
  UCD150987  Heterotheca grandiflora D. S. Park 2010-4-25 32 -2 Orange Whiting Ranch Wilderness Park, along trail. 226 Comment
  RSA0075812  Heterotheca grandiflora R. E. Riefner 2000-8-8 20 -716 Orange NCCP North Ranch Policy Plan Area. NE property; E slope of upper Fremont Cyn.; S of Donaldson Ranch area and S of powerline / National Forest boundary. 454 Comment
  SD113060  Heterotheca grandiflora Darley F. Howe 1971-10-25 4791 Orange Near corner of Brookhurst and Lincoln Ave., Anaheim. Comment
  UCR193928  Heterotheca sessiliflora A. C. Sanders, Fred M. Roberts 2008-7-16 35848 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon 325 Comment
  UCSB52910  Heterotheca sessiliflora subsp. echioides Roberts, Fred; Camp, H. 1984-9-5 Orange Wagon Wheel Regional Park; 1.4 km. NW Bench Mark 422; 2.9 km. NE Median Survey Mark 175 Comment
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Dec 7 2018
  SBBG128672  Hoita macrostachya R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49564 Orange San Juan Cyn at Lower Picnic Camp, just below Ortega Hwy (74); Santa Ana Mtns Comment
  LA207960  Holodiscus discolor W. E. Pequegnat; 1937-8-11 59 Orange Santa Ana Mountains, N side Santiago Peak 1725 Comment
  RSA698657  Holodiscus discolor Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  UC1128013  Holodiscus discolor J. B. Spring 1931-4-7 30 Orange n of Trabuco Canyon (Quadrangle Corona); Quadrangle Corona 243 Comment
  UCD22756  Homalocladium platycladum A. T. Leiser 1974-9-26 s.n. Orange So. Coast Field Sta. Comment
  SD181760  Hordeum depressum Valerie Soza, K. Clark,F. Roberts,W. Miller,L. R. Gross,G. Wallace 2001-4-4 1132 Orange Northern edge of Huntington Harbor: Seal Beach U.S. Naval Weapons Station, southeastern edge of Seal Beach National Wildlife Refuge, along roadside 3 Comment
  RSA655234  Hordeum intercedens D. E. Bramlet 1993-4-18 2332 Orange University of California, Irvine Campus, on the UCI Ecological Reserve. The site is 500 ft. southwest of the end of Los Trancos Dr. & 75 ft northwest of the reserve entrance., 37 21 370m. N X 4 21 950m E. Comment
  UCR104090  Hordeum intercedens D. E. Bramlet 1993-4-18 2332 Orange Tustin, University of California, Irvine Campus, on the UCI Ecological Reserve. Site is 500 ft SW of the end of Los Trancos Dr. and 75 ft NW of the reserve entrance 49 Comment
  UCR150377  Hordeum intercedens D. E. Bramlet 1998-5-19 2621 Orange Coastal Plains & Basins/Los Angeles Basin region, San Juan Hills: 4400 ft west of La Pata Ave. and 10,000 ft N of Prima Deshecha Canada. A ridgeline 500 ft east of a small canyon 91 Comment
  UCR150385  Hordeum intercedens D. E. Bramlet, S. Leatherman 1998-5-11 2614 Orange Coastal Plains & Basins/South Coastal Plain region, Along ridgeline 1.58 km N of Avenida pico and 1.46 km west of Cristianitos Canyon, 1.07 km SE of the Segunda Deshecha access road (Telega Valley Rd.) 226 Comment
  UCR158149  Hordeum intercedens Adrian Wolf 1998-5-4 204 Orange South Coast, Coastal Hills, Aliso/Woods Canyon Regional Park, trail to Dripping Cave, in Woods Canyon 1 km up from confluence with Aliso Canyon, west of Sheep Hills, south of Dripping Cave 134 Comment
  UCR158169  Hordeum intercedens Adrian Wolf 1998-4-20 111 Orange Santa Ana Mtns., lower Limestone Canyon near Irvine Lake, 3 km SE of Irvine Lake dam, north of Santiago Canyon Rd. 287 Comment
  UCR267436  Hordeum intercedens D. E. Bramlet 2001-5-15 3143 Orange Santa Ana Mtns. Foothills, upper watershed of Deep Canyon, 1300 ft. east of Krum Reservoir, c. 2 miles SE of San Juan Capistrano, 1200 ft. south of Avenida Placida, west of the Prima Deshecha landfill 201 Comment
  UCR217289  Hordeum murinum Mark A. Elvin 2003-3-30 2393 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 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
  CAS-BOT-BC55487  Hornungia procumbens Helen D. Geis 1902-3-21 s.n. Orange Balsa Chica. Comment
  RSA458246  Hypericum formosum var. scouleri Claire Kibbe 1936-07 19972 Orange Santa Ana Canyon. Comment
  RSA685932  Hypochaeris glabra Fred M. Roberts, David E. Bramlet 2003-3-27 5615 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, western slopes of Chistianitos Canyon, 0.8km N Sycamore Gate 0.15km W Cristianitos Road; (San Clemente). 139 Comment
  RSA789497  Iberis gibraltarica John Murphy 1938-6-6 14 Orange Birch Park Comment
  CAS-BOT-BC311672  Isocoma menziesii var. sedoides David D. Keck 1932-9-30 1902 Orange 2 mi. W. of Laguna Beach Comment
  CAS-BOT-BC311674  Isocoma menziesii var. sedoides David D. Keck 1932-9-30 1901 Orange 2 mi. W. of Laguna Beach Comment
  CAS-BOT-BC311733  Isocoma menziesii var. vernonioides John Thomas Howell 1927-7-17 2789 Orange One mile north of Laguna Beach 30 Comment
  CHSC100702  Isocoma menziesii var. vernonioides R. E. Riefner Jr. 2004-9-18 04 -425 Orange City of Yorba Linda; Santa Ana River, Horseshoe Bend, near La Palma Rd. and Via Del Rio Rd. UTM 11S 0431519E 3749312N. NAD 83. 105 Comment
  UCSB70085  Isolepis cernua Sanders, A. 2008-7-3 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  IRVC312  Isomeris arborea Aldis 1965-3-27 Orange Irvine [Regional] Park Comment
  POM201735  Jaumea carnosa L. M. Booth 1932-6-9 1183 Orange Newport Bay. Comment
  SEINET11446674 Image available Jaumea carnosa L. C. Wheeler 1932-6-22 846 Orange Newport Bay 0 Comment
  UC537018  Jaumea carnosa Lawrence M. Booth 1932-6-9 1183 Orange Newport Bay Comment
  RSA301965  Jaumea carnosa J. R. Shevock 1972-9-27 2285 Orange Newport Back Bay. 2 Comment
  RSA588852  Jepsonia parryi Fred M. Roberts Jr. 1989-11-7 4451 Orange Rancho Mission Viejo: TRW Lease Holding, ridge south of the confluence of Gabino and Blind Canyons, 5.0 km NE Clemente Survey Marker 155 Comment
  UCR24414  Jepsonia parryi John C. Roos 1936-10-9 2301 Orange Santa Ana Canyon Comment
  LA205692  Juglans californica C. B. Wolf; 1934-9-21 6141 Orange Brea Canyon, lower end of canyon, Puente Hills 600.0 +- ft Comment
  UCR222643  Juglans californica D. E. Bramlet 2008-6-5 4291 Orange Peninsular Range; Santa Ana Mtns. Foothills, tributary to Wier Canyon, 731 m north of SCE transmission line and 229 m west of Weir Canyon Rd. 257 Comment
  UCSB42416  Juglans californica Romspert, A. 1966-4-26 Orange Carbon Canyon; on hill behind La Vida Hot Springs; East side of slope Comment
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Jan 27 2015
  UCSB47595  Juglans californica Roberts, Fred 1980-4-5 Orange Highway 74; San Juan Canyon; 0.4km sw Lower San Juan Picnic Ground; Santa Ana Mountains 390 Comment
  RSA0011057  Juglans californica J. R. Bruff 1936-11 s.n. Orange Durant St. Santa Ana. Comment
  RSA0011059  Juglans californica I. L. Wiggins 1966-5-11 20660 Orange Carbon Canyon about 1 mile above its mouth. Comment
  SEINET13942199 Image available Juglans californica B. D. Stark 1933-1 5553 Orange Rancho Santa Ana, Santa Ana Canyon, along irrigation canal 100 yds E of school, upper sonoran life zone, prop. Number 2048. 400 ft. 122 Comment
  UC1135934  Juglans californica var. californica A. Lewis Mar 1934 356 Orange Brea Canyon Corona Quadrangle Comment
  RSA0050325  Juglans hindsii R. E. Riefner Jr. 2010-9-8 10 -121 Orange City of Laguna Beach, Laguna Canyon, c. 0.15 mi south of El Toro Road on east side of Laguna Canyon Road. 75 Comment
  RSA683232  Juncus acutus Scott D. White, Matt Carlton 2003-11-20 9861 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (Dana Point) 24 Comment
  UCR207558  Juncus acutus O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  JEPS66901  Juncus acutus subsp. leopoldii Lawrence M. Booth 1932-5-24 1102 Orange Newport Bay Comment
  UCSB36209  Juncus acutus subsp. leopoldii Ferren, Wayne; Whitmore, S.; Millett, B. 1980-8-27 Orange Newport Backbay just W of Backbay Drive; ca. 3 km V NE of Rt. 1; Newport Beach Comment
  RSA750920  Juncus balticus A. C. Sanders, Fred M. Roberts 2008-7-3 35706 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UC537280  Juncus balticus L. M. Booth 1932-12-26 1381 Orange Bolsas Marsh, near highway Bolsas Marsh Comment
  UCR193378  Juncus balticus subsp. ater A. C. Sanders, Mitch Provance 2008-5-20 35395 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
  RSA731916  Juncus balticus var. balticus Fred M. Roberts, Sandy Leatherman 2007-11-27 6663 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  RSA734913  Juncus bufonius A. C. Sanders, Mitch Provance 2008-5-20 34520 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  RSA734632  Juncus bufonius var. congestus A. C. Sanders, T. B. Salvato 2008-5-13 35381 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  POM202728  Juncus mexicanus L. M. Booth 1932-6-4 1153 Orange Newport Lagoon. Comment
  RSA105  Juncus mexicanus J. T. Howell 1927-6-21 187 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA106  Juncus mexicanus J. T. Howell 1927-6-16 145 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA543966  Juncus patens Steve Boyd, Orlando Mistretta 1991-5-9 6197 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  UCR17849  Juncus patens A. C. Sanders 1976-3-11 783 Orange Santa Ana Mtns., Black Star Canyon 427 Comment
  UCR247891  Juncus patens Fred M. Roberts 2012-7-18 7662 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
  UCR174221  Juncus rugulosus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33025 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
  RSA0014070  Juncus textilis Fred M. Roberts, R. E. Riefner 2010-5-30 7023 Orange Lomas de Santiago: Loma Ridge, Hanging Man s Tree Cyn., along Hanging Man s Tree Cyn. Rd., c.a. 0.4km W Santiago Cyn. Rd., and 1.2 km N Bolero Lookout. 372 Comment
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Sep 21 2020
  JEPS67112  Juncus torreyi S. B. Parish and W. F. Parish Oct 1882 1593 Orange Orange Comment
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Jul 18 2010
  POM1593  Juncus xiphioides C. B. Bradshaw 1903-9-25 s.n. Orange Silverado Canyon. Comment
  CAS-BOT-BC334500  Juniperus rigida var. conferta R. E. Riefner, Jr. 2012-10-21 12 -521 Orange City of Newport Beach, Corona del Mar, ca 0.5 mi S from the intersection of Poppy Ave./ Ocean Blvd. at Little Corona Beach 12 Comment
  RSA424813  Keckiella antirrhinoides F. R. Fosberg 1931-6-21 S- 5082 Orange Lower Santiago Canyon. Comment
  RSA612318  Keckiella antirrhinoides Louis C. Wheeler 1932-7-9 943 Orange Santa Ana River 5 miles below Prado. 152 Comment
  UC1618100  Keckiella antirrhinoides var. antirrhinoides Donald G. Nelson 1935-7-6 259 Orange San Juan Canyon Comment
  RSA748264  Keckiella cordifolia A. C. Sanders, Fred M. Roberts 2008-6-17 35516 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  SEINET7067517  Keckiella cordifolia A. G. Vestal 1947-6-12 s.n. Orange San Juan Canyon. Coordinate datum: NAD27. UTM Zone 11, 448887mE, 3712881mN. 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
  UC1063228  Keckiella cordifolia A. Lewis May 1934 426 Orange Trabuco Canyon; Elsinore Quad. 1341 Comment
  UC1294011  Keckiella cordifolia E. K. Balls 1958-6-27 23283 Orange 5 mi se Silverado (Gate); Santa Ana Mts., Silverado Canyon 1097 Comment
  SD245486  Keckiella cordifolia Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49620 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station. 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
  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
  RSA730997  Kickxia elatine Fred M. Roberts 2006-11-15 6460 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
  RSA731985  Koeleria macrantha A. C. Sanders, Fred M. Roberts 2008-4-8 34773 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  CAS-BOT-BC271251  Koeleria pyramidata P. Munz; L. Street 1919-5-3 2622 Orange Santa Ana River Canyon Comment
  CAS-BOT-BC271300  Koeleria pyramidata Le Roy Abrams 1901-6-1 1832 Orange Summit of Santiago Pk. Comment
  UCR236678  Koelreuteria paniculata Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7100 Orange Peninsular Ranges, Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.7 km W Gypsum Cyn. Rd. bridge, south of La Palma Ave. 107 Comment
  CDA15831  Kyllinga brevifolia B. Butcher 1999-11-17 PDR 1237873 Orange Southern California; Santa Ana. 0 Comment
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Oct 27 2010
  POM202589  Lamarckia aurea L. M. Booth 1932-5-12 1022 Orange Newport Bay Comment
  UC1132162  Lamarckia aurea A. Lewis Apr 1934 377 Orange Coal Mine 304 Comment
  RSA663163  Lamium amplexicaule R. E. Riefner Jr. 2000-6-26 20 -584 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N from Baker Canyon Road. 305 Comment
  RSA0040039  Lantana camara Anonymous 1933-10-13 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC329173  Lasthenia glabrata subsp. coulteri Carl B. Wolf 1935-3-24 6295 Orange 1 mi N of Buena Park (valley to W of W. Coyote Hills) 53 Comment
  SD27972  Lasthenia glabrata subsp. coulteri Carl B. Wolf 1932-3-8 2691 Orange Sunset Beach, near southern limits of City. Comment
  SD73477  Lasthenia glabrata subsp. coulteri C. B. Wolf 1935-3-24 6295 Orange 1.0 mile north of Buena Park. Comment
  SEINET5585513  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2013-1 13 -39 Orange City of Lake Forest, along El Toro Rd. at Destry Rd. 211 Comment
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Apr 7 2021
  POM294108  Lasthenia gracilis Lyman Benson 1946-4-27 12056 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 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
  UCSB9449  Lasthenia gracilis Lloyd, Robert 1959-4-17 Orange 10 miles south of West Corona on the Oak Flats Fire Road; Santa Ana Mt. Range; Pacific Ocean Drainage Area 792 Comment
  RSA92917  Lasthenia gracilis F. W. Peirson 1924-5-31 4667 Orange 5 miles southeast of Laguna Beach. Comment
  CSUSB1272  Lathyrus laetiflorus Geoffrey Matthews 1971-5-15 Orange 3 miles north of Morrill Valley Comment
  UCR48003  Lathyrus latifolius Jack Easton 1987-4-21 s.n. Orange Southern Coast, Kain property, San Clemente, mouth of Trafalgar Canyon, just behind the beach 30 Comment
  RSA785201  Lathyrus vestitus Dick Newell, Don Millar 2010-4-20 016 Orange top of Serrano Ridge, 1 km west of the Nix Center/Laguna Canyon Rd. 229 Comment
  SEINET956308  Lathyrus vestitus Scott D. White 1997-1 b- 4698 Orange Above Modjeska Canyon. Proposed water tank site. 427 Comment
  IRVC14906  Lathyrus vestitus subsp. laetiflorus D. Ibbetson 1965-4-19 Orange Newport Beach. Southern Coastal Comment
  RSA35462  Lavatera assurgentiflora subsp. assurgentiflora Emily M. Bradford 1904-3-6 s.n. Orange Ocean Park Comment
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Sep 13 2013
  RSA13056  Layia platyglossa subsp. campestris Percy C. Everett 1935-4-15 6462 Orange 8/10 mile E of Atwood on S side of Santa Fe RR. 107 Comment
  RSA714001  Lemna minuta R. E. Riefner 2005-10-27 5 -303 Orange City of Irvine; along Jeffrey Rd. N of Barranca Rd. near Irvine Valley College. 47 Comment
  RSA608238  Lepechinia cardiophylla Steve Boyd, Bart O'Brien 1998-1-13 10072 Orange Santa Ana Mountains: north end of the range, saddle between Mabey and Fremont canyons, along Main Divide Road ( 3S04) ca. 1.0 mi N of Oak Flat. 884 Comment
  UCR231204  Lepechinia cardiophylla A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39942 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  RSA716659  Lepidium didymum Fred M. Roberts 2005-5-13 6188 Orange San Juan Capistrano; Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  RSA697418  Lepidium didymum J. R. Bruff s.n. Orange Fifth St. Bridge. Santa Ana. Comment
  IRVC1088  Lepidium lasiocarpum D. Van Gorden 1965-4-2 Orange Anaheim and Meyer Field. Costa Mesa Comment
  RSA749841  Lepidium lasiocarpum D. Bramlet, Weena Sangkatavat 2008-3-27 4131 Orange Bee Canyon, Bowerman landfill site. 528 m S of the Bee Canyon access road and 440 m W of the active landfill. Comment
  UCR197577  Lepidium latifolium A. C. Sanders, Fred M. Roberts 2008-9-18 36090 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  CAS-BOT-BC12520  Lepidium nitidum Carl B. Wolf 1932-2-15 2657 Orange Rancho Santa Ana Botanic Garden, above the Rubus beds. 182 Comment
  IRVC1093  Lepidium nitidum D. Orr 1965-4-10 Orange Trabuco Road, 3mi E El Toro Marine Base. El Toro Comment
  RSA429969  Lepidium nitidum Albert J. Perkins 1913-3-6 s.n. Orange Near San Juan Hot Springs, Orange County Comment
  RSA627742  Lepidium nitidum Scott D. White 1998-1-26 6066 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
  RSA697453  Lepidium nitidum Pomeroy 1929-2-23 79 Orange Near El Toro. Comment
  UCSB59357  Lepidium pinnatifidum Roberts, Jr., Fred 1987-7-8 Orange Irvine; San Diego Creek near San Diego Fwy. crossing, 3.2 km. N UC Irvine campus center; UTM 3726200m N, 422500m E 5 Comment
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Nov 17 2018
  UC537122  Lepidium virginicum Lawrence M. Booth 1932-5-24 1098 Orange Newport Lagoon Comment
  UCSB52926  Lepidium virginicum Roberts, Jr., Fred 1983-3-16 Orange Laguna Beach, Sycamore Hills, central ridge; 1.1 km NNE jct. El Toro and Laguna Cyn. Rds.; 5.4 km. ESE Signal Peak 170 Comment
  UCR222386  Lepidium virginicum var. robinsonii Mark A. Elvin 2003-1-26 2245 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  POM50054  Lepidospartum squamatum Helen D. Geis 1902-1 576 Orange Santiago Canyon. Comment
  RSA1446  Lepidospartum squamatum J. T. Howell 1929-2-6 1223 Orange Floor of Claymine Canyon, Santa Ana Mts 152 Comment
  RSA450838  Leptochloa fusca subsp. uninervia 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
  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
  CDA23619  Leptochloa uninervia A. Thomas, Mark A. Elvin 2006-9-23 609233 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
  IRVC29821  Leptochloa uninervia Artie Thomas, Mark A. Elvin 2006-9-23 609233 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
  UCR12588  Leptochloa uninervia J. S. Davis 1972-5-6 720506- 5 Orange South Coast, Newport Beach; corner of San Joaquin Hills Road and Back Bay Road 0 Comment
  UCR44908  Leptochloa uninervia B. G. Pitzer, L. F. LaPre 1986-10-20 0318 Orange City of Irvine, Drainage channel near intersection of Irvine Blvd. and Sand Canyon Avenue. 91 Comment
  UC484228  Leptodactylon californicum C. B. Wolf 1931-3-6 1831 Orange on Trabuco Canyon Road 1 1/2 mi below Trabuco Oaks; below Trabuco Oaks 304 Comment
  UCR17334  Leptodactylon californicum Andrew Alexis 1978-4-29 s.n. Orange Santa Ana Mtns, mouth of Modjeska Canyon. Comment
  RSA698317  Leptodactylon californicum R. H. McArthur 1934-3-25 s.n. Orange Limestone Canyon Comment
  SEINET6969968  Leptodactylon californicum W. P. Vestal, A. G. Vestal 1955-3-24 3461 Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  UCR16662  Leptodactylon californicum subsp. leptotrichomum David M. Peterson 1966-3-9 660309- 11 Orange Peninsular Range; Santa Ana Mtns., 13 mi east of San Juan Capistrano on the road to Elsinore 457 Comment
  RSA696977  Leptosiphon floribundus Keith E. Hoffmaster 1932-4-17 s.n. Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  RSA0095146  Leptosiphon floribundus subsp. floribundus Valerie L. Soza, LeRoy Gross 1999-6-7 481 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  UCR186586  Lessingia filaginifolia Robert DeRuff 1995-1 s.n. Orange Southern Coast, Newport Beach, Newport Back Bay, Eastbluff bench 12 Comment
  RSA0023265  Leymus triticoides R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49775 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA698086  Lilium humboldtii J. Vlahos 1934-03 s.n. Orange Black Star Canyon. Comment
  RSA377146  Lilium humboldtii subsp. ocellatum Albert J. Perkins 1923-6-24 s.n. Orange Silverado Canyon Comment
  CDA23580  Limonium binervosum A. Thomas, Mark A. Elvin 2006-9-23 609237 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
  POM201925  Limonium californicum var. mexicanum L. M. Booth 1932-6-29 1229 Orange Newport Bay. Comment
  UCR177129  Limonium duriusculum R. E. Riefner Jr. 2002-5-4 02- 99 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  UCR266377  Limonium duriusculum D. E. Bramlet 2009-11-27 4417 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  UCR282154  Limonium duriusculum R. E. Riefner Jr. 2017-3-10 17- 75 Orange South Coast, city of Mission Viejo, along Olympiad Road near intersection with Alicia Parkway 253 Comment
  RSA723486  Limonium duriusculum R. E. Riefner 2005-11-23 5 -772 Orange City of Newport Beach, Newport Bay, Bay View Dr. at Jamboree Rd. 6 Comment
  RSA161163  Limonium perezii Peter H. Raven 1957-9-28 11394 Orange Laguna Beach. Comment
  RSA658207  Limonium perezii T. A. Daubert 1991-5-19 672 Orange Tucker Wildlife Sanctuary, Modjeska Canyon nature trail. Comment
  RSA723550  Limonium ramosissimum R. E. Riefner 2006-8-11 6 -386 Orange Upper Newport Bay, E of Back Bay - Bayside Dr. flats along Big Canyon Creek. 5 Comment
  UC1923254  Limonium sventenii R. E. Riefner Jr. 2008-2-16 8 -28 Orange City of Lake Forest (El Toro), El Toro Rd. near Raymond St., Canada de Los Alisos. 98 Comment
  SEINET6045534  Linanthus E. W. Lathrop 1974-6-27 7420 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon. Cleveland National Forest. Comment
  JEPS58154  Linanthus androsaceus A. J. Perkins 1913-4-27 Orange Trabuco Canyon Comment
  POM212419  Linanthus californicus C. B. Wolf 1931-3-6 1831 Orange 1.5 miles below Trabuco Oaks along Trabuco Canyon Road 305 Comment
  SD247694  Linanthus californicus R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49691 Orange Northern Santa Ana Mountains; Sierra Peak. 900 Comment
  JEPS58364  Linanthus dianthiflorus Alice King Mar 1908 Orange near Anaheim; Santiago Creek Comment
  SEINET12279064  Linanthus dianthiflorus J. F. Bright, Wyman, C. 1933-1 8009 Orange Santa Anna foothills Comment
  RSA3188  Linanthus dianthiflorus subsp. dianthiflorus C. B. Wolf 1932-3-8 2675 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA4498  Linanthus dianthiflorus subsp. dianthiflorus C. B. Wolf 1932-3-14 2711 Orange At west side of Botanic Garden(this is the only known patch in the vicinity of the B.g.) 192 Comment
  RSA690973  Linanthus liniflorus Scott D. White, Michael Honer 2003-5-29 9424 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  UCR193066  Linanthus liniflorus A. C. Sanders, T. B. Salvato 2008-5-13 35337 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
  UCR37803  Linanthus liniflorus Steve Boyd, L. F. LaPre 1981-5-27 s.n. Orange Santa Ana Mtns., Northern end of the Santa Ana Mtns., along powerline road on ridges east of Weir Canyon & at the head of Gypsum Canyon. Comment
  RSA680912  Linaria canadensis Scott D. White 2003-3-21 8797 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA700539  Linaria canadensis var. texana Frances Battey s.n. Orange Orange Co. Park. Comment
  UCR281516  Linaria canadensis var. texana Mitch Provance, Jeremiah George 2017-3-20 317- 107 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Road W of Gilbert Street and N of Rosecrans Ave., on land previously occupied by oil fields. 131 Comment
  CDA6326  Linaria maroccana J. McNeill 1969-4-1 3034 Orange The Bluffs, Eastbluffs, Newport. Comment
  RSA783494  Lithophragma J. D. Olmsted 1959-4-23 456 Orange Spring Trail, Beacon Pines Ranch; 9 miles SW of Corona. Drainage area to Santa Ana River. 762 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
  IRVC21379  Lobelia dunnii var. serrata A. S. Boughey 1968-7-9 405 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  POM193486  Lobelia dunnii var. serrata Helen E. Sweet 1928-08 s.n. Orange Santiago Canyon. Comment
  UCR193805  Lobelia dunnii var. serrata A. C. Sanders, Fred M. Roberts 2008-7-16 35837 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  IRVC1113  Lobularia maritima J. Pierce 1965-4-27 Orange Corona del Mar. Newport Beach Comment
  UC1543187  Logfia filaginoides Donald G. Nelson 1935-4-6 233 Orange n of summer ranger station (near main highway of San Juan Canyon, e of San Juan Capistrano, s of Cleveland Nat. Forest); Santa Ana Mountains Comment
  CAS-BOT-BC283492  Lolium multiflorum Carl B. Wolf 1932-6-13 3728 Orange Fullerton, Malvern, and Nicholas Avenues 53 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
  SEINET192714 Image available Lolium perenne C. B. Wolf 1932-6-13 Orange Fullerton Rose Drive 53 Comment
  UC729941  Lolium perenne Carl B. Wolf 1932-6-13 3728 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  UCR193070  Lolium perenne subsp. multiflorum A. C. Sanders, Mitch Provance 2008-5-20 35419 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA0042734  Lolium perenne subsp. multiflorum David Barrios 1991-5-8 34 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  UCR193796  Lolium perenne subsp. perenne A. C. Sanders, Fred M. Roberts 2008-7-3 35707 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  CAS-BOT-BC271070  Lolium temulentum E. R. Johnson 1932-5-18 3638 Orange East edge of grain field bordering Rancho, Rancho Santa Ana Botanic Garden 198 Comment
  UCD66645  Lolium temulentum A. A. Beetle 1942-4-19 3093 Orange 20 miles S of Santa Ana, road to Laguna. Comment
  POM202585  Lolium temulentum L. M. Booth 1932-5-19 1078 Orange Newport Bay. Comment
  POM265762  Lolium temulentum J. C. Roos 1937-5-21 2068 Orange Lemon Heights Comment
  UCR217285  Lomatium lucidum Mark A. Elvin, Laura Soloro, Adam Sriro 2003-1-10 2218 Orange Peninsular Range; Santa Ana Mtns., c. 1.6 mi. west of Sierra Peak along road to powerlines, near Claymont Clay Mine 457 Comment
  CAS-BOT-BC240668  Lonicera interrupta A. M. White 1974-6-1 1408 Orange Ca. 20 mi. E. of Santa Ana, N. of Silverado Canyon Comment
  CAS-BOT-BC241459  Lonicera involucrata var. ledebourii Agnes M. Bowman 1899-6-1 s.n. Orange Orange Comment
  IRVC325  Lonicera japonica B. Aldis 1965-4-25 Orange Slater Ave. Huntington Beach Comment
  RSA697263  Lonicera subspicata Keith E. Hoffmaster 1933-5-27 s.n. Orange Santa Ana Mountains. Comment
  POM18126  Lonicera subspicata var. denudata P. A. Munz 1923-9-7 7738 Orange Santiago Peak, Santa Ana Mountains 1677 Comment
  POM50583  Lonicera subspicata var. denudata Helen D. Geis 1900-1 518 Orange Hills back of Santa Ana. Comment
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Aug 8 2010
  RSA663159  Lonicera subspicata var. denudata R. E. Riefner 2000-6-1 20 -458 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 473 Comment
  SBBG104044  Lonicera subspicata var. denudata B. Pitzer 1992-5-21 1940 Orange St Hwy 74, 1 mi uphill from 2000 ft marker, and to the left ca. 1 mi on old rd Comment
  RSA697961  Lotus americanus Minor Warne 1934-5-19 s.n. Orange Live oak Canyon. Comment
  HSC95603  Lotus hamatus D. Atwood 1993-3-27 17693 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  UC1543240  Lotus hamatus Donald G. Nelson 1935-4-14 286 Orange facing Newport Bay and the ocean (along main coast highway); Newport Beach Comment
  UCR191246  Lotus hamatus A. C. Sanders 2008-4-29 35132 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
  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
  UC1280313  Lotus heermannii John M. Tucker 1941-5-30 261 Orange 2-3 mi e w boundary of Cleveland National Forest (Ortega Highway) Comment
  RSA679091  Lotus heermannii var. heermannii Fred M. Roberts 2003-7-24 5968 Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub. 27 Comment
  UCR191238  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-4-22 34988 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
  UCR222416  Lotus salsuginosus D. E. Bramlet 2008-3-26 4118 Orange Peninsular Range; Santa Ana Mountains, Bee Canyon, Bowerman landfill site. 202 m south of the Bee Canyon access road and 151 m west of the active landfill entrance 295 Comment
  JEPS55886  Lotus scoparius Alice King May 1902 Orange Newport Comment
  POM276672  Lotus scoparius Lyman Benson 1932-3-26 3200 Orange Dana Point. 60 Comment
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Apr 29 2008
  RSA554622  Lotus scoparius Scott D. White 1992-10-14 965 Orange Vicinity of city of Brea, immediately N of Carbon Canyon Road.& E of Placentia Ave., ca. 1 mile (airline) SSE of Tonner Canyon. 183 Comment
  RSA697977  Lotus scoparius Jeanne Paxton 1934-2-25 s.n. Orange Sugar Loaf Canyon, Arch Beach Comment
  RSA752849  Lotus scoparius subsp. scoparius Fred M. Roberts 2009-4-21 7155 Orange Dana Point Headlands: southern cliffs, 0.7 km W Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 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
  RSA681947  Lotus scoparius var. scoparius Fred M. Roberts, David E. Bramlet 2003-3-7 5570 Orange Donna O'Neill Land Conservancy; Ridge west of Christianitos Canyon, Middle Ridge Trail, 1.1km NW Gato Gate. 178 Comment
  RSA725937  Lotus scoparius var. scoparius R. E. Riefner 2006-7-2 06 -277 Orange Costa Mesa, St. Route 73 at 55 Freeway interchange 20 Comment
  SEINET10890813  Lotus scoparius var. scoparius Greg Gust, Leith Nye 2005-3-12 Gust 564 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  UCR193062  Lotus scoparius var. scoparius A. C. Sanders, Fred M. Roberts 2008-5-6 35219 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCR99549  Lotus scoparius var. scoparius B. G. Pitzer 1996-4-30 2802 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  POM250348  Lotus strigosus I. W. Clokey 1932-3-1 5328 Orange Laguna Beach. 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
  RSA680538  Lotus strigosus Scott D. White 2003-3-21 8801 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  UCR103215  Lotus strigosus Scott D. White 1997-2-19 4694 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  UCR190969  Lotus strigosus A. C. Sanders, Fred M. Roberts 2008-4-22 35053 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  RSA406318  Lotus strigosus var. strigosus M. B. Dunkle 1939-3-26 5233 Orange San Juan Canyon 30 Comment
  RSA542579  Lotus strigosus var. strigosus Fred M. Roberts 1988-3-15 3847 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark 149 Comment
  RSA562727  Lotus unifoliolatus Steve Boyd, T. S. Ross 1992-5-20 7463 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along canyon floor from crossing Lucas Canyon Trail, upstream 1/4 mile to spur trail leading to old mining habitations in side canyon. 305 Comment
  RSA627762  Lotus unifoliolatus Scott D. White 1998-5-31 6571 Orange UCI Campus; Southwest of Farm School site (now proposed as Student Rec. Ctr.) 24 Comment
  UC1608265  Lotus wrangelianus Steve Boyd and Tim Ross 1992-5-20 7485 Orange Lucas Canyon at the Lucas Canyon Trail crossing, just downstream from crossing, w edge of the San Mateo Canyon Wilderness Area Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar 320 Comment
  POM199193  Lupinus albifrons Kenneth Beard 1934-03 s.n. Orange Hill E. of Dlacentia. Comment
  SEINET7062957 Image available Lupinus bicolor A. G. Vestal 1947-6-12 s.n. Orange About 0.2 mile west of Quail Valley at Menifee Corner and about 6.8 miles east of Lake Elsinore. UTM Zone 11, 476547mE, 3729356mN. (WGS84/NAD83). 491 Comment
  UCD107254  Lupinus bicolor C. L. Hitchcock 1966-3-15 24135 Orange 1/2 mile e. of Brea. Comment
  RSA699188  Lupinus bicolor J. R. Bruff 1927-3-16 2 -L Orange 1 mi. N.E. of Country Club. Comment
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Sep 20 2011
  IRVC2290  Lupinus bicolor subsp. marginatus C. Weir 1965-5-9 HS 0424 Orange Newport Beach, [Newport] Back Bay. Southern Coastal Comment
  IRVC8531  Lupinus bicolor subsp. umbellatus Charles W. Sexton 1973-3-19 s.n. Orange Irvine: Bonita Canyon Rd. Southern Coastal Comment
  UCR270351  Lupinus concinnus Dick Newell, Judy Booth 2016-4-24 423 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 0.6 miles NW of Elsinore Peak on South Main Divide Rd. 973 Comment
  OBI5825  Lupinus excubitus Carl B. Wolf 1931-5-20 2056 Orange Along Santa Fe RR 1 mi W of Esperanza, Santa Ana Cyn 107 Comment
  SBBG103895  Lupinus excubitus B. Pitzer, S. Hemstreet 1992-5-27 1964 Orange USFS Rd 3S04 to Blue Jay Group Cmpgrd, off St Hwy 74, ca. 2 air mi W of El Cariso Cmpgrd 762 Comment
  CAS-BOT-BC216673  Lupinus excubitus subsp. hallii B. D. Stark 1931-4-18 1939 Orange Gypsum Canyon, N base of Santa Ana Mountains, Santa Ana Canyon 152 Comment
  SD247648  Lupinus excubitus var. hallii R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49692 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UCSB47613  Lupinus hirsutissimus Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, 0.4 km. NNE Falcon Group Camp (near Blue Jay CG); Santa Ana Mountains 1067 Comment
  CAS-BOT-BC217749  Lupinus longifolius E. R. Johnson 1932-4-15 2957 Orange Rancho Santa Ana, 1 mi. NW of Roundtop (Section 16) 457 Comment
  POM2601  Lupinus longifolius Philip A. Munz 1918-5-4 2201 Orange Laguna Beach. Comment
  UCR177694  Lupinus microcarpus var. microcarpus Fred M. Roberts 2003-5-1 5689 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.21 km west of Cristianitos Rd. 96 Comment
  POM276293  Lupinus nanus subsp. menkerae Lyman D. Benson 1933-3-13 3089 a Orange caliente Wash, Greenhorn Range, Caliente Creek Watershed. 244 Comment
  RSA732123  Lupinus sparsiflorus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34638 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  IRVC2302  Lupinus sparsiflorus subsp. sparsiflorus B. Newman 1965-4-14 s.n. Orange Dana Point. Southern Coastal Comment
  IRVC2305  Lupinus sparsiflorus subsp. sparsiflorus E. P. Cowper 1965-4-3 s.n. Orange Modjeska Canyon Santa ANa Mountains Comment
  RSA414283  Lupinus sparsiflorus subsp. sparsiflorus M. B. Dunkle 1938-3-26 5234 Orange San Juan Canyon 30 Comment
  IRVC14753  Lupinus sparsiflorus subsp. sparsiflorus A. S. Boughey 1968-4-16 227 Orange Lower Modjeska Canyon, Fleming property. Sana Ana Mountains Comment
  RSA653185  Lupinus succulentus David Barrios 1991-5-8 33 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 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
  RSA88903  Lupinus succulentus E. K. Balls 1954-3-1 18850 Orange Botanic Garden, Santa Ana Canyon Comment
  SDSU5016  Lupinus succulentus R. M. Beauchamp 1968-2-17 769 Orange On north side of Trabuco Rd., opposite Catholic cemetery. Comment
  UCR191456  Lupinus succulentus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34634 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  IRVC2344  Lupinus succulentus Bruce Reynolds 1965-4-3 HS 0419 Orange Corona Del Mar: Lincoln Junior High School Southern Coastal Comment
  RSA700183  Lupinus succulentus Minor Warne 1934-03 s.n. Orange Santa Ana Canyon Comment
  IRVC20345  Lupinus truncatus Fred M. Roberts 1983-3-10 892 Orange Dana Point Headlands: S of Scenic Drive, 0.3km W Dana Point Harbor; 0.8km S Richard Henry Dana School. Southern Coastal 60 Comment
  RSA404  Lupinus truncatus J. T. Howell 1928-2-25 839 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  SBBG47485  Lupinus truncatus M. B. Dunkle 1935-3-3 4346 Orange San Juan Cyn 457 Comment
  UCR203985  Lupinus truncatus Fred M. Roberts 2008-3-12 6726 Orange South Coast, Dana Point Headlands Center for Natural Lands Mgmt. Preserve, west side, c. 0.8 km west of Marine Institute, Dana Point Harbor 50 Comment
  UCR98121  Lupinus truncatus George K. Helmkamp, E. A. Helmkamp 1997-4-24 1653 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
  UCR98251  Lupinus truncatus Scott D. White 1997-3-28 4851 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  IRVC15185  Lupinus truncatus Gordon A. Marsh, K. Conrey 1975-4-14 s.n. Orange Lomas de Santiago: Lomas Ridge, 1/4mi NNW Rattlesnake Canyon Reservoir Dam Southern Coastal Comment
  SEINET12154803  Lupinus truncatus J. F. Bright, Wyman, C. 1938-1 8220 Orange Laguna Beach Comment
  UCR130356  Lycium A. C. Sanders, Mark A. Elvin 2003-10-12 27313 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  RSA615548  Lycium andersonii Sandy Leatherman, Brian Daniels 1994-12-16 s.n. Orange Lomas de Santiago: west of Lomas Ridge, 1.2 km NE Siphon Reservoir dam. 183 Comment
  OBI9188  Lycium californicum Dieter H. Wilken, Timothy LeBlanc 1966-1-7 621 Orange Dana Point, N of San Juan Capistrano 3 Comment
  POM4188  Lycium californicum Philip A. Munz 1918-5-5 2196 Orange Laguna Beach. Comment
  RSA357139  Lycium californicum Robert F. Thorne 1975-4-6 45576 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  RSA80318  Lycium californicum F. W. Peirson 1919-11-8 1085 Orange South of Arch Beach, near Laguna Beach Comment
  OBI33516  Lysimachia arvensis Nancy J. Moriarty 1973-5-27 730527 -3 Orange San Clemente State Beach 1 mi S of the end of Ave Califia in the sand below the bluffs Comment
  POM49378  Madia elegans subsp. elegans L. R. Abrams 1901-06 1817 Orange Santiago Peak Trail 915 Comment
  SD234830  Madia gracilis A. C. Sanders, Mitch Provance 2008-5-20 35390 Orange Peninsular Range: Santa Ana Mountains: Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence (El Toro 7.5' Q) 366 Comment
  CLARK-A1528-5622  Madia sativa John C. Roos 1960-5-30 Orange Santa Ana Mountains Comment
  OBI12364  Malacothamnus fasciculatus Louis C. Wheeler 1932-7-9 941 Orange Santa Ana River, 5 mi below Prado 152 Comment
  RSA433312  Malacothamnus fasciculatus Unspecified 1918-1 s.n. Orange Laguna Comment
  RSA433316  Malacothamnus fasciculatus Albert J. Perkins 1923-6-28 s.n. Orange Laguna Cliffs Comment
  RSA472  Malacothamnus fasciculatus J. T. Howell 1927-6-20 170 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR190965  Malacothamnus fasciculatus A. C. Sanders, Fred M. Roberts 2008-4-22 35058 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  UCR193543  Malacothrix saxatilis A. C. Sanders, Fred M. Roberts 2008-7-3 35669 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA0027428  Malacothrix saxatilis var. tenuifolia Fred M. Roberts 2013-7-18 7661 Orange San Joaquin Hills: Newport Beach, Buck Gully, along Buck Gully Trail, about 0.7 km from the north terminus of Poppy Street and 1.8 km WNW summit of Pelican Hill. 52 Comment
  CAS-BOT-BC347887  Malacothrix saxatilis var. tenuifolia P. A. Munz 1936-6-30 14177 Orange Road at La Vida Springs, Carbon Canyon Comment
  RSA507486  Malacothrix saxatilis var. tenuifolia Jeri Hirshberg 1988-6-7 s.n Orange Santa Ana Mts. 274 Comment
  RSA721106  Malacothrix saxatilis var. tenuifolia R. H. McArthur 1934-4-28 s.n. Orange Roadside W. of Santiago Dam. Comment
  CDA25903  Malephora crocea Mark A. Elvin, D. G. Kelch 2006-12-9 5297 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  RSA48858  Malephora crocea J. C. Roos 1949-10-1 4687 Orange Doheney Beach. [Now Capistrano Beach] Comment
  IRVC3285  Malosma laurina Fred M. Roberts, K. G. Marsh 1985-7-18 2057 Orange Temple Hill, Goff Ridge, 0.9km NE Goff Island off Nye Place Laguna Beach 168 Comment
  RSA13103  Malosma laurina Percy C. Everett 1935-10-29 2574 Orange Rancho Santa Ana, Santa Ana Canyon N of canal & Mexican houses. 122 Comment
  RSA696481  Malosma laurina J. R. Bruff 1934-6-30 586 Orange High school campus Comment
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Sep 13 2013
  UCR140791  Malosma laurina Robin G. Marushia 2004-5-4 017 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  SEINET10870270  Malosma laurina Charlene A. Bennett 1976-7-21 Bennett 435 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  SD43546  Malva assurgentiflora Carl B. Wolf 1944-11-29 11497 Orange Open field in vacant lots, southeast of Costa Mesa. 22 Comment
  UCR193467  Malva nicaeensis A. C. Sanders, T. B. Salvato 2008-5-13 35356 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
  UCR237818  Malva parviflora Mark A. Elvin 2003-2-2 2287 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA678727  Malvaviscus arboreus Fred M. Roberts, Leo Song 2002-8-1 562 Orange San Joaquin Hills: Laguna Beach, South flank Temple hill, between Nyes Place and Balboa Ave.; 0.9 km ENE Sugarloaf pt. 183 Comment
  RSA234536  Malvella leprosa James Henrickson 1970-7-25 5072 Orange 3 miles NE of Huntington Beach at far northern end of Bolsa Chica Salt Marsh. 0 Comment
  UCR107222  Malvella leprosa Scott D. White 1998-6-26 6779 Orange Irvine, University of California, Irvine campus: low-lying seasonal wetland along mapped intermittent 'blueline' stream just north of Bonita Canyon Drive 70 Comment
  UCR237831  Malvella leprosa Mark A. Elvin 2003-2-2 2283 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  CDA25897  Mangifera indica Mark A. Elvin, D. G. Kelch 2006-12-9 5322 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 100 miles west of Eastbluff Drive. Comment
  UCR221458  Marah macrocarpa Dick Newell, Don Millar 2010-11-30 48 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon Canyon 232 Comment
  RSA791808  Marsilea drummondii R. E. Riefner Jr. 2007-9-30 7 -415 Orange City of Yorba Linda, Santa Ana Canyon, urban runoff tributary to Santa Ana River, La Palma Ave. at Via Lomas De Yorba East. 110 Comment
  UCR240180  Marsilea drummondii R. E. Riefner Jr. 2008-6-22 08- 209 Orange city of Yorba Linda, Santa Ana Canyon, Santa Ana River, La Palma Avenue near Old Village Road 96 Comment
  RSA148106  Marsilea vestita Arthur W. Haupt 1935-4-12 s.n. Orange Costa Mesa Comment
  RSA665952  Marsilea vestita Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5423 Orange Rancho Mission Viejo: South of San Juan Creek, 0.4km ESE Median Rancho Survey Marker., PCR Vernal Pool 7. 238 Comment
  RSA357003  Matricaria matricarioides R. F. Thorne 1975-4-6 45566 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  UC1292308  Matricaria occidentalis C. L. Hitchcock and C. V. Muhlick 1964-3-17 23065 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  RSA113265  Matthiola incana E. K. Balls 1955-4-4 20423 Orange Coastal Strand, west end of Newport Beach. 3 Comment
  UCSB56677  Matthiola incana Roberts, Jr., Fred 1984-2-4 Orange South Laguna; Aliso Canyon near mouth, 0.7 km. WNW Aliso Peak 15 Comment
  RSA797820  Meconella denticulata Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49809 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  IRVC19541  Medicago minima R. L. Allen 1983-1 1983 Orange Irvine: near NE corner of Culver at Irvine Blvd. Southern Coastal Comment
  IRVC2372  Medicago polymorpha Robin Hobson 1965-4-10 s.n. Orange Santa Ana Heights; 2431 Mesa Dr. Southern Coastal Comment
  IRVC2375  Medicago polymorpha Janet Bryant 1965-3-14 s.n. Orange Newport Beach; [Newport] Back Bay. Southern Coastal Comment
  IRVC2383  Medicago polymorpha C. Thompson 1965-4-10 s.n. Orange Newport Beach; Corona del Mar, Corona Highlands. Southern Coastal Comment
  IRVC2388  Medicago polymorpha Randy Acevedo 1965-5-5 HS 413 Orange Newport Beach; [Newport] Back Bay. Southern Coastal Comment
  RSA737483  Medicago polymorpha Fred M. Roberts 2008-3-12 6733 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UCR103219  Medicago polymorpha Scott D. White 1997-2-19 4692 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  UCD107897  Medicago polymorpha Ira L. Wiggins 1966-3-31 20568 Orange Shoulder of Associated Road, 200 m. S of the Imperial Highway, Fullerton. Comment
  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
  CAS-BOT-BC532580  Medicago truncatula A. C. Sanders; Fred M. Roberts 2008-4-8 34738 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 457 Comment
  CDA35809  Medicago truncatula A. C. Sanders, Fred M. Roberts 2008-3-25 34521 Orange Peninsular Range; Santa Ana Mtns.; Weir Canyon, 4 miles east-north-east of Villa Park at south-east edge of Anaheim Hills. Comment
  UCR192633  Medicago truncatula A. C. Sanders, Fred M. Roberts 2008-3-25 34521 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA746478  Medicago truncatula R. E. Riefner Jr. 2008-3-24 08 -64 Orange Rancho Santa Margarita, Tijeras Canyon, N ca. 0.5 mi from Meandering Trails Rd. on Antonio Pkwy. 221 Comment
  RSA746480  Medicago truncatula R. E. Riefner Jr. 2007-4-1 07 -168 Orange City of Laguna Niguel, Laguna Niguel Regional Park, general vicinity of La Paz Rd. at Aliso Creek. 63 Comment
  RSA785574  Melaleuca nesophila R. E. Riefner Jr., Cindy Hopkins 2011-7-1 11 -82 Orange City of Newport Beach. Beach area west of the end of Cameo Shores Road. South ca. 1 mi from Poppy Ave. 2 Comment
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Dec 20 2012
  UCR98486  Melica frutescens Scott D. White 1997-3-28 4840 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  POM182773  Melica imperfecta Marcus E. Jones 1925-3-13 s.n. Orange North end, Santa Ana Canyon Comment
  RSA262075  Melica imperfecta E. W. Lathrop 1966-4-18 6171 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA703723  Melica imperfecta D. E. Bramlet, Fred M. Roberts 2003-3-13 3334 Orange Donna O'Neill Reserve. North East ridge of the reserve, 915m W of Cristianitos Rd. & 1.2km N of the E-W access road., (11S, 04 46 770E, 37 06 080N) 195 Comment
  SBBG119063  Melica imperfecta D. E. Bramlet, F. Roberts 2003-3-13 3334 Orange Donna O'Neill Reserve, NE ridge of reserve, ca. 915 m W of Cristianitos Rd and 1.2 km N of the E-W access rd (San Clemente: T8S R7W S12, NE of the NE 195 Comment
  SD123844  Melica imperfecta E. W. Lathrop 1966-5-13 6298 Orange Santa Ana Mountains, 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest 395 Comment
  UCR138332  Melica imperfecta R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 460 Orange Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 473 Comment
  RSA0071936  Melica imperfecta CNPS Accuracy Assessment Team 2014-4-27 4617 Orange Weir Canyon. Comment
  POM7085  Melica imperfecta var. flexuosa P. A. Munz, L. T. Street, G. Williams 1919-5-3 2659 Orange Santa Ana River Canyon. Comment
  IRVC2398  Melilotus albus L. Aldis 1965-4-24 Orange Huntington Beach; Stater Ave. Southern Coastal Comment
  UCD108025  Melilotus albus B. Pitzer 1996-4-30 2766 Orange Upper Newport Bay: Calif. Dept. Fish and Game Ecological Reserve, off (W of) Jamboree Rd. 6 Comment
  UCR220025  Melilotus albus Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  IRVC2416  Melilotus indicus McGuire 1965-3-14 s.n. Orange Newport Beach; Bayside Dr. Southern Coastal Comment
  IRVC2419  Melilotus indicus B. Mawdsley 1965-5-1 s.n. Orange Newport Beach; Corona del Mar, 520 Narcissus Dr. Southern Coastal Comment
  IRVC27499  Melilotus indicus Mark A. Elvin 2004-5-2 3410 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  UCR237823  Melilotus indicus Mark A. Elvin 2003-2-2 2292 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  CLARK-A1528-981  Melilotus indicus Patricia A. Andrews 1975-6-26 5919 Orange Capistrano Bay Beach 9 Comment
  SEINET7073428  Mentzelia affinis A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  RSA16494  Mentzelia dispersa Percy C. Everett 1935-6-18 7213 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 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
  RSA539391  Mentzelia micrantha Fred M. Roberts, Carol A. Roberts 1988-6-9 4072 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Peak, west slope, 0.5 km NNW summit. 1417 Comment
  RSA734654  Mentzelia micrantha A. C. Sanders, Fred M. Roberts, A. O Neal, D. E. Bramlet 2008-5-9 35313 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  RSA734686  Mentzelia micrantha A. C. Sanders, T. B. Salvato 2008-5-13 35354 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UC1178607  Mentzelia micrantha Peter Kamb 1948-6-19 1109 Orange se Slope of Santiago Peak; Santa Ana Mts.; Orange County-Riverside County 1219 Comment
  IRVC27725  Mesembryanthemum crystallinum Mark A. Elvin 2004-5-2 3429 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA278  Mesembryanthemum crystallinum J. T. Howell 1927-6-30 251 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA696449  Mesembryanthemum lineare Anonymous 1903-11-24 s.n. Orange [Unspecified] Comment
  UC212958  Mesembryanthemum nodiflorum D. L. Crawford 1916-5-10 Orange Laguna Beach Comment
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Jul 7 2008
  RSA286421  Mesembryanthemum nodiflorum Mary H. O Brien 1976-5-1 s.n. Orange Bolsa Chica Bay 100 m e. of Hwy 1 opposite Bolsa Chica State Beach entrance station. Edge of a 6X10 meter salt burn. 0 Comment
  SEINET6184305 Image available Metasequoia glyptostroboides J. E. Canright 1973-6-28 s.n. Orange Behind Research Laboratory 3, Chevron Oil Company, La Habra Comment
  RSA535967  Micropus californicus Fred M. Roberts 1989-4-17 4266 Orange SANTA ANA MTNS: Central Blind Canyon, 7.3km SW Sierra Peak, 2.4km N Irvine Lake. 259 Comment
  UCR158153  Microseris douglasii subsp. douglasii Adrian Wolf 1998-4-24 166 Orange South Coast, San Joaquin Hills, Shady Canyon, upper section, 2.25 km ENE of Signal Peak, 3 km west of Laguna Lakes 277 Comment
  UCR158096  Microseris douglasii subsp. platycarpha Adrian Wolf 1998-4-25 150 Orange South Coast, San Joaquin Hills, upper Coyote Canyon, 1 km NW of Signal peak, 2.5 km east of San Joaquin Reservoir 268 Comment
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Nov 21 2015
  UCR208155  Microseris douglasii subsp. platycarpha Fred M. Roberts, D. E. Bramlet 2003-3-27 5621 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.79km N Sycamore Gate, 0.23km W Cristianitos Rd. 126 Comment
  UCR220126  Microseris douglasii subsp. platycarpha D. E. Bramlet 1993-3-27 2297 Orange South Coast, University of California, Irvine Campus, adjacent to the UCI Ecological Reserve, 150 ft. SW of the end of Los Trancos Dr. & 250 ft. E of the reserve entrance 61 Comment
  RSA965  Microseris heterocarpa J. T. Howell 1928-2-25 832 Orange Orange county: near the ranch houses, Rancho Santa Ana. 152 Comment
  RSA68354  Microseris lindleyi G. R. Campbell 1951-5-30 16102 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest. 152 Comment
  RSA732057  Microseris lindleyi A. C. Sanders, Fred M. Roberts 2008-3-25 34518 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA785531  Microseris lindleyi Doris Bowers 1971-4-19 1683 Orange Black Star Canyon Indian Site 762 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
  UC1577076  Mimulus A. Lewis May 1934 407 Orange San Juan Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  RSA0051384  Mimulus aurantiacus subsp. australis Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49602 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  RSA0058060  Mimulus aurantiacus subsp. australis Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49674 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  UCR116518  Mimulus aurantiacus var. aurantiacus Dan Hare 2001-5-1 s.n. Orange South Coastal Plains region, Crystal Cove State Park, approximately 5 km north of the city of Laguna Beach, 1.2 km inland from the coast 50 Comment
  OBI9534  Mimulus aurantiacus var. pubescens H. E. McMinn & M. Van Rensselaer, M. Van Rensselaer 1945-6-10 1912 Orange Slope on N side of Santa Ana River, Santa Ana Cyn Comment
  RSA551154  Mimulus aurantiacus var. pubescens David M. Thompson 1992-5-16 1068 Orange 0.6 mi. SW of San Bernardino Co. line along Carbon Canyon Rd. (Hwy 142). 229 Comment
  UCR16000  Mimulus aurantiacus var. pubescens Nancy Robb 1966-4-15 s.n. Orange 3 miles SE of Yorba Linda, 1 mi south of Santa Ana Canyon Road 122 Comment
  UCSB48103  Mimulus aurantiacus var. pubescens Roberts, Fred; Fritzke, Sue 1982-4-3 Orange Santa Ana Mnts; Lower Hot Springs Canyon; Lazy W Road; 2.4km N by road of San Juan Guard Station; 1.4km NNW Juan Rancho Survey Mark 240 Comment
  POM256713  Mimulus aurantiacus var. pubescens W. Pequegnat 1940-6-14 s.n. Orange Trabuca Pk. 1220 Comment
  UCR102625  Mimulus aurantiacus var. puniceus B. G. Pitzer, M. Georgiady 1997-4-5 3100 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
  RSA681048  Mimulus brevipes Scott D. White, Michael Honer 2003-5-29 9433 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. Steep, gen. south-facing slopes above trib. to Trampas Canyon, ca. 0.6 air mi. S of Ortega hwy and ca. ca. 0.5 mi west of Trampas Cyn. 122 Comment
  RSA435530  Mimulus cardinalis Albert J. Perkins 1912-09 s.n. Orange Bank of stream East Orange Co. Comment
  RSA7634  Mimulus clevelandii Carl B. Wolf 1933-11 20009 Orange Trabuco Canyon, so wall, opposite the Trabuco truck trail. Comment
  UC718321  Mimulus clevelandii P. C. Everett 1936-8-28 8233 Orange head Trabuco Canyon (Mian Divide Motorway); Santa Ana Mts. 1158 Comment
  POM46A  Mimulus floribundus D. L. Crawford 1916-07 s.n. Orange Near Laguna Comment
  RSA734757  Mimulus floribundus A. C. Sanders, T. B. Salvato 2008-5-13 35335 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence. 366 Comment
  RSA0036645  Mimulus floribundus Robt. Allen, Richard Newell 2009-7-11 s.n. Orange Peninsular Ranges; Santa Ana Mountains regions: Upper Santiago Canyon, just past community of Modjeska Canyon, Fleming Ranch, East end of Modjeska Canyon Road. 621 Comment
  UCR16027  Mimulus guttatus Steve Kulju 1974-5-27 s.n. Orange Peninsular Range; Santa Ana Mtns, San Juan Canyon, 16 mi SW of Lake Elsinore on State Hwy 74 488 Comment
  SEINET10570241  Mimulus longiflorus Charlene A. Bennett 1976-7-21 Bennett 439 Orange Cultivated plants collected in and around the condominium pacific island estates In laguna hills; some native shrubs. 152 Comment
  RSA539424  Minuartia douglasii Fred M. Roberts, Carol A. Roberts 1988-6-9 4084 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit. 1542 Comment
  RSA732070  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
  RSA751254  Mirabilis laevis A. C. Sanders, Fred M. Roberts 2008-7-16 35870 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon. 358 Comment
  POM6381  Mirabilis laevis var. crassifolia P. A. Munz, L. T. Street, G. Williams 1919-5-3 2672 Orange Santa Ana River Canyon. Comment
  UC536921  Mirabilis laevis var. crassifolia Lawrence M. Booth 1932-5-12 1035 Orange Newport Bay 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
  RSA0042247  Monanthochloe littoralis Valerie Soza, LeRoy J. Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1102 Orange Seal Beach National Wildlife Refuge: Seal Beach U.S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  UC537290  Monanthochloe littoralis Lawrence M. Booth 1932-5-12 1046 Orange Newport Bay Comment
  RSA0059067  Monanthochloe littoralis CNPS Accuracy Assessment Team 2014-7-9 9563 .2 Orange Upper Newport Bay Nature Reserve. Comment
  SD119375  Monardella breweri subsp. lanceolata Reid Moran 1977-6-13 24236 Orange Willow Canyon, tributary of Laguna Canyon. 124 Comment
  UCR230838  Monardella breweri subsp. lanceolata Dick Newell, Peter Wetzel 2011-6-28 196 Orange South Coast, San Joaquin Hills, Willow Canyon, Laguna Coastal Wilderness Park 89 Comment
  RSA759153  Monardella hypoleuca 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
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Aug 13 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
  UC284874  Monardella hypoleuca subsp. intermedia P. A. Munz 1923-9-7 7742 Orange along trail from Holy Jim Canyon to Santiago Peak; Santa Ana Mts 914 Comment
  UC718448  Monardella hypoleuca subsp. intermedia Carl B. Wolf 1936-6-22 8003 Orange 3 mi above F.S. gate Santiago Canyon (along truck trail to Modjeska Pk.); Santa Ana Mts 762 Comment
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Jan 7 2018
  RSA131404  Monardella lanceolata var. lanceolata E. K. Balls 1958-6-27 23285 Orange Santa Ana Mountains: 8 miles SE of Silverado (Gate), Silverado canyon. Comment
  RSA0010788  Morus alba Robt. Allen, Richard S. Newell, Roger E. Reinke 2006-6-30 s.n. Orange Holy Jim Canyon Trail. About 1.5 mile up trail from forest gate. 671 Comment
  RSA450862  Muhlenbergia asperifolia Gordon Marsh, Karlin G. Marsh 1977-11-21 s.n. Orange Santa Ana Mountains: San Juan Hot Springs. Comment
  CAS-BOT-BC275289  Muhlenbergia microsperma Steve Boyd; Tim Ross 1992-5-19 7448 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of wilderness in Aliso Canyon at the confluence with Lucas Canyon, upstream to the Lucas Canyon Trail crossing 335 Comment
  CAS-BOT-BC275292  Muhlenbergia microsperma Helen D. Geis 1902-1-1 556 Orange Unspecified Comment
  LA9673  Muhlenbergia microsperma LeRoy Abrams; 1903-4-18 3260 Orange near San Juan Capristrano Comment
  RSA773522  Muhlenbergia microsperma Fred M. Roberts 1999-5-14 5213 Orange Peninsular Ranges; Santa Ana Mts.: Lomas de Santiago, Loma Ridge; Upper Limestone Canyon on slopes above Bolero Spring, 2.4 km NNW Bolero Lookout 451 Comment
  RSA0028023  Muhlenbergia rigens Fred M. Roberts 2012-9-6 7696 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 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
  UCR112109  Myoporum laetum A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23335 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  POM6291  Nama stenocarpa P. A. Munz, L. T. Street, G. Williams 1919-5-4 2681 Orange Laguna Canyon. Comment
  UCR36055  Nama stenocarpa F. R. Fosberg 1928-7-25 05928 Orange Laguna Lakes, Laguna Canyon 122 Comment
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Dec 11 2010
  CAS-BOT-BC259822  Nassella cernua LeRoy Abrams 1903-4-18 3269 Orange Trabuco Canon [Trabuco Canyon], Capistrano 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
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Oct 7 2013
  UCD87925  Nassella lepida F. M. Reed 1928-7-10 6579 Orange sidewalk in Laguna Beach, El Toro. 1524 Comment
  POM182189  Nassella pulchra Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon Comment
  RSA548874  Nassella pulchra Fred M. Roberts, Dar A. Roberts 1989-3-22 4216 Orange Aliso-Wood Regional Park: Lower Wood Canyon, 3.6km SSE Moulton Peak. 38 Comment
  UC822007  Nassella pulchra B. D. Stark 1933-5-2 4546 Orange Roundtop Rancho Santa Ana, Santa Ana Canyon 457 Comment
  POM356  Nasturtium officinale Crocker 1916-4-9 s.n. Orange Santa Ana River region, Aquatec River bottom Comment
  RSA703641  Nasturtium officinale R. E. Riefner Jr. 2003-11-30 3 -483 Orange Peters Canyon Channel at Alton St., E of Jamboree Rd. near Irvine City Hall. 22 Comment
  UC1618099  Navarretia Donald G. Nelson 1935-7-15 296 Orange Costa Mesa, Tracy locality Costa Mesa; , Tracy locality Comment
  RSA592109  Navarretia atractyloides R. E. Riefner 1994-4-15 94 -338 Orange NE of Moulton Meadow Park, Nyes Place Road, City of Laguna Beach. Comment
  RSA759149  Navarretia atractyloides Robt. Allen, D. Taylor 2008-7-19 s.n. Orange Along North Main Divide Road, 0.2 road miles S of junction with Bedford Rd, 3.5 road miles N of junction with Maple Springs Road, 0.84 air miles WNW of Bald Peak. Labeled on USGS Topo map as Water Tank, near BM 3702. 1142 Comment
  RSA626153  Navarretia prostrata R. E. Riefner 1998-5-15 98 -326 Orange San Clemente State Beach, SW end of park Comment
  RSA113269  Nemacaulis denudata var. denudata E. K. Balls 1955-4-4 20419 Orange Coastal Strand, mouth of Santa Ana River, W bank, Hwy 101 Comment
  RSA756067  Nemacaulis denudata var. denudata O. F. Clarke 2004-7-19 s.n. Orange Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  SD239862  Nemacaulis denudata var. denudata O. F. Clarke 2004-7-19 Orange South Coast: Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach (Newport Beach 7.5'Q) 3 Comment
  UC2030080  Nemacaulis denudata var. denudata Valerie Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1131 Orange Bolsa Bay / Bolsa Chica Beach: Bolsa Chica Beach State Park and Bolsa / Chica Ecological Reserve Boundary, alongside Pacific Coast Highway. Comment
  RSA616  Nemophila menziesii J. T. Howell 1928-3-18 889 Orange Rancho Santa Ana, Botanic Garden. 152 Comment
  RSA699661  Nemophila menziesii Keith E. Hoffmaster 1927-4-8 s.n. Orange Santa Ana Mountains. Comment
  RSA421357  Nemophila menziesii M. B. Dunkle 1935-2-10 4329 Orange El Toro. Comment
  CAS-BOT-BC478170  Nephrolepis cordifolia R. E. Jr. Riefner 2014-6-14 14 -171 Orange City of Newport Beach, Cliff Drive Park, along Cliff Drive, near Beacon Street 44 Comment
  RSA13157  Nicotiana bigelovii var. wallacei Percy C. Everett 1935-6-28 7259 Orange 8/10 of a mi. east of Atwood. S. side of R. R. tracks. 1067 Comment
  UCR267213  Nicotiana clevelandii Fred M. Roberts, Lee Ann Caranza 2009-4-7 7140 Orange South Coastal Region, DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor 60 Comment
  CDA1049  Nicotiana glauca D. G. Kelch 2006-12-9 6 .542 Orange Along Newport Back Bay Dr. in side canyon. Comment
  UCR191471  Nicotiana glauca A. C. Sanders, Fred M. Roberts 2008-4-8 34738 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA659636  Nicotiana glauca T. A. Daubert 1991-5-26 673 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, fire road. Comment
  JEPS12369  Nicotiana quadrivalvis Alice King Apr 1908 Orange Santiago Creek; Santa Ana Mountains Comment
  SEINET7067536  Nicotiana quadrivalvis A. G. Vestal 1947-6-12 s.n. Orange Santa Ana River Wash northwest of Orange. Coordinate datum: NAD27. UTM Zone 11, 418667mE, 3739612mN. Comment
  UCR229211  Nicotiana quadrivalvis Dick Newell, Peter Wetzel 2011-6-28 199 Orange South Coast, San Joaquin Hills, Willow Canyon, Laguna Coastal Wilderness Park 89 Comment
  RSA615783  Nolina cismontana James C. Dice 1985-5-23 593 Orange Upper Borrego Canyon, along Santiago Canyon Rd., 1.8 km south of Modjeska Canyon Rd., Near 33 42 08N, 117 38 24W 440 Comment
  RSA642703  Nolina cismontana R. E. Riefner 2000-3-19 20 -137 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N and parallel to Black Star Cy. Road. 396 Comment
  SEINET1910244  Nolina cismontana R. E. Riefner Jr. 2007-1 7 -256 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W fork Fremont Canyon, Donaldson Ranch area. 381 Comment
  RSA0051415  Nolina parryi R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49684 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  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
  POM3074  Oenothera californica P. A. Munz 4117 Orange Anaheim. Comment
  CAS-BOT-BC171487  Oenothera californica Helen D. Geis 1902-3-1 s.n. Orange Santa Ana sand dunes Comment
  RSA698248  Oenothera pallida Kenneth Beard s.n. Orange Santa Ana riverbank Comment
  UCR239649  Oenothera speciosa Fred M. Roberts 2012-5-9 7550 Orange Santa Ana Mountains, Lake Forest, near Serrano Creek utility road, 0.3 m south-southwest of intersection of Commercentre and Dimension Drives 206 Comment
  RSA609020  Oligomeris linifolia L. M. Booth 1932-5-24 1097 Orange Newport Bay. 8 Comment
  CAS-BOT-BC427453  Oligomeris linifolia Carl B. Wolf 1932-6-28 3792 Orange Bryant Ranch, at the extreme SW. corner of the SW. 40 of the SE. 160 of sect. 27. T4S. R11W. Comment
  POM284080  Opuntia X occidentalis Lyman Benson 1955-10-17 15595 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  RSA696230  Opuntia X occidentalis Keith E. Hoffmaster 1927-6-5 s.n. Orange near Newport Comment
  UCD97983  Opuntia X occidentalis Janet McIntosh 1966-4-9 17 Orange State Highway 74, 20 miles northeast of San Juan Capistrano. Comment
  CAS-BOT-BC56216  Opuntia ficus-indica John Thomas Howell 1927-6-22 2574 Orange Field redacted by CAS, contact the data manager for more information Comment
  POM285345B  Opuntia littoralis Lyman Benson 1955-10-17 15600 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  POM288522A  Opuntia littoralis Lyman Benson 1955-10-17 15602 Orange Laguna Beach (north end of town). 30 Comment
  POM317771  Opuntia vaseyi David Walkington 1963-9-13 216 Orange At end of Salt River canyon rd., ca. 1 mile west of Rt. 101A and 2 miles north of Dana Point. 46 Comment
  POM49505  Orobanche fasciculata L. R. Abrams 1901-6-15 1847 Orange Santiago Peak. Comment
  RSA708238  Orobanche fasciculata Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6233 Orange Southwest arm of Modjeska Peak, 1.2km SW summit, Main Divide Rd. near jct. of road to summit. 1533 Comment
  POM156459  Orthocarpus densiflorus var. gracilis L. R. Abrams 1903-4-18 3266 Orange Near San Juan Capistrano Comment
  CAS-BOT-BC355775  Osmadenia tenella L. R. Abrams 1901-6-16 1789 Orange Trabuco Canon [Canyon] Comment
  UCR209663  Osmadenia tenella Fred M. Roberts 2008-5-16 6984 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve north of Marguerita Drive, 0.5 km west-northwest of the Marine Institute, Dana Point Harbor 75 Comment
  SEINET10842082  Osmadenia tenella Tom Hensel 1973-7-8 Hensel 254 Orange Hillside south of current end of Santa Ana Dr. (855 Santa Ana), Laguna Beach. Comment
  IRVC15627  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
  RSA458994  Osmorhiza brachypoda Albert J. Perkins 1914-6-14 s.n. Orange Santiago Peak. Comment
  SBBG52718  Osmorhiza brachypoda C. Davidson 1977-5-18 5609 Orange Santiago Pk (on Orange-Riverside Co line); Santa Ana Mtns 1706 Comment
  RSA731941  Oxalis corniculata Fred M. Roberts, Sandy Leatherman 2007-11-27 6694 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. c.a. 0.3km S Fairmont Blvd. 118 Comment
  RSA651768  Oxalis corniculata Jack D. Ingwersen 1962-6-2 s.n. Orange Anaheim Comment
  UCD111026  Oxalis pes-caprae Gordon Pilone 1961-3-14 111 Orange Little Corona Del Mar. 3 Comment
  RSA649941  Oxalis pes-caprae Ken Zysk 1971-3-19 P 102 Orange 500 feet off Nutwood Dr., Fullerton. 91 Comment
  RSA303  Paeonia californica J. T. Howell 1927-6-6 50 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA434261  Paeonia californica M. B. Dunkle 1933-3-5 3095 Orange San Juan Canyon, Comment
  RSA501314  Paeonia californica S. Zona, G. A. Allen, A. Liston, L. Rieseberg 1989-2-5 304 Orange San Juan Hot Springs along Ortega Hwy, alt 230m. 230 Comment
  RSA787679  Paeonia californica Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49715 Orange Santa Ana Mountains: Bedford Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail Comment
  RSA588782  Paeonia californica Fred M. Roberts, Nicole Orlik 1990-4-11 4716 Orange Santa Ana Mountains: East Fork Upper Long Canyon, along Main Divide Truck Trail, 4.4 kilometers SE Los Pinos Peak. 750 Comment
  UCSB41782  Paeonia californica Soper, Robert 1971-2-27 Orange Trabuco Cyn ca 2 mi. from paved road turn-off 365 Comment
  CAS-BOT-BC354349  Pallenis maritima R. E. Riefner, Jr. 2013-1-16 13 -14 Orange City of Newport Beach, vicinity of Poppy Ave. and Ocean Blvd., coastal bluff at Little Corona Beach 7 Comment
  OBI82300  Pallenis maritima Unknown 2011-6-25 11 -74 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 2 Comment
  RSA797014  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. 2 Comment
  RSA651754  Panicum capillare Diane T. Liggett 1981-5-16 18 Orange Freeway (91) east to Gypsum Cyn. Road, north ot Featherly Park entrance, east to bike trail, .1 km east. Comment
  RSA773552  Panicum capillare Fred M. Roberts 2008-6-3 7032 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.6 km NE Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 225 Comment
  CAS-BOT-BC389660  Panicum coloratum R. E. Riefner, Jr. 2014-7-6 14 -218 Orange City of Los Alamitos, along Los Alamitos Channel, E of 605 Fwy., N of Katella Ave., S of Coyote Creek, NE of Oak Academy Park, vicinity of Adobe Dr. and Acorn Ln. 11 Comment
  RSA731538  Panicum dichotomiflorum subsp. dichotomiflorum R. E. Riefner 2007-9-30 7 -416 Orange City of Yorba Linda, Santa Ana Canyon, La Palma Ave. at Via Lomas De Yorba East. 110 Comment
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Dec 21 2011
  RSA754060  Panicum miliaceum A. C. Sanders, Fred M. Roberts 2008-7-16 35865 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 358 Comment
  RSA785381  Papaver glaucum John Murphy 1938-6-6 s.n. Orange Birch Park Comment
  CAS-BOT-BC413373  Parietaria hespera var. californica Helen D. Geis 1902-1-1 509 Orange Santa Ana Comment
  RSA717519  Parietaria judaica R. E. Riefner 2006-7-28 6 -325 Orange City of Huntington Beach, Huntington Central Park at Goldenwest St. 4 Comment
  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
  POM301692  Paspalum dilatatum J. C. Roos 1942-6-20 990 Orange Anaheim, Telegraph Road, east of Los Angeles Comment
  POM1056  Paspalum distichum Daniel J. Crawford 1916-7-26 750 Orange Aliso Canyon Comment
  RSA724061  Paspalum urvillei R. E. Riefner 2005-11-4 5 -742 Orange City of Lake Forest, Alton Pkwy. at Bertea Rd. 123 Comment
  RSA733055  Paspalum vaginatum R. E. Riefner 2007-10-26 07 -459 Orange City of Laguna Niguel, vicinity of La Paz Rd. at Kings Rd. 64 Comment
  SD218260  Paspalum vaginatum R. E. Riefner Jr., K. Campbell 2008-8-31 08 267 Orange City of Irvine, tidal portion of San Diego Creek, immediately easst of Highway 73 overpass. 0 Comment
  UCR204165  Paspalum vaginatum R. E. Riefner Jr. 2007-7-8 07- 304 Orange City of Laguna Niguel, Aliso Creek, Alicia Pkwy at Skate Park Way 46 Comment
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Jul 30 2010
  UCR191426  Pectocarya penicillata A. C. Sanders, Fred M. Roberts 2008-4-8 34777 B Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  CAS-BOT-BC402203  Pedicularis densiflora R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49711 Orange Northern Santa Ana Mountains: Sierra Peak. 900 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
  RSA783268  Pellaea andromedifolia J. D. Olmsted 1959-4-23 466 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  UCR97819  Pellaea andromedifolia Scott D. White 1997-3-28 4835 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  RSA598963  Pellaea andromedifolia var. andromedifolia Scott D. White 1997-3-28 4835 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA125875  Pennisetum setaceum P. H. Raven 1957-9-28 11395 Orange Laguna Beach. 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
  RSA790701  Penstemon cordifolius R. H. McArthur 1934-5-19 2 Orange PR8. Trobuca Canyon. Comment
  RSA761797  Penstemon heterophyllus Robert Allen 2003-6-22 12310 Orange West-facing flank of Santiago Peak, near the saddle between Santiago and Modjeska Peaks, along North Main Divid Road. 1523 Comment
  RSA769335  Penstemon heterophyllus subsp. australis E. W. Lathrop 1974-6-27 7411 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA220992  Penstemon heterophyllus var. australis E. W. Lathrop 1966-4-18 6186 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  POM256957  Penstemon heterophyllus var. australis W. Pequegnat 1940-6-15 s.n. Orange Santa Ana Mountains: Modjeska Flat. 1372 Comment
  SEINET3148376  Pentachaeta aurea L. Abrams 1903-4-17 3259 Orange Near El Toro Comment
  RSA0094735  Pentagramma triangularis E. K. Balls, Percy C. Everett 1957-11-25 22838 Orange on N facing banks in rocks; Upper Trabuco Canyon, 2.9 miles NE from entrance to Holy Jim Canyon. 1097 Comment
  SBBG70200  Peritoma arborea M. N. Ackley -Feb-1927 84 Orange Newport Beach 5 Comment
  RSA263669  Phacelia cicutaria var. hispida E. W. Lathrop 1974-6-27 7430 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA594  Phacelia cicutaria var. hispida J. T. Howell 1927-7-26 477 Orange Claymine Canon near Sierra Peak. 244 Comment
  UCR239653  Phacelia cicutaria var. hispida Fred M. Roberts 2012-4-27 7544 Orange Lomas de Santiago, Loma Ridge, west of SR 241, tributary to 'Las Flores' Canyon, 1.5 km west-southwest of Irvine Lake Park Campground and 1.1 km east of Orange County Emergency Operations Center, Hill 1311 311 Comment
  RSA741721  Phacelia cicutaria var. hubbyi R. E. Riefner Jr. 2008-6-3 8 -143 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, N Fremont Canyon, slope NE of Donaldson Ranch area. 444 Comment
  SEINET4682011  Phacelia cryptantha W. Halvorson 1969-8-22 350 Orange 8 miles east of El Toro, California.; 0 61 Comment
  JEPS2402  Phacelia distans Alice King June 1908 Orange Santa Ana Comment
  RSA606  Phacelia distans J. T. Howell 1928-3-18 892 Orange Rancho Santa Ana, Botanic Garden. 152 Comment
  UC718113  Phacelia distans C. B. Wolf 1935-4-7 6320 Orange San Juan Hot Springs Santa Ana Mts., San Juan Hot Springs Canyon (at mouth of canyon) 213 Comment
  RSA542476  Phacelia distans Fred M. Roberts, T. Sholars 1988-3-29 3877 Orange San Joaquin Hills: Laguna Canyon along Laguna Canyon road, 2kim by road N Pacific Coast Hwy, 2.1km E guna Survey Marker. 34 Comment
  RSA605  Phacelia distans J. T. Howell 1927-6-24 209 Orange Olinda 152 Comment
  RSA738986  Phacelia hispida Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA759104  Phacelia imbricata Robt. Allen, Genevieve K. Walden, Lisa W. Young 2008-6-26 s.n. Orange Modjeska Peak, WSW-facing slope, directly across from Santiago Peak. Within 1 meter of the W side of Main Divide Truck Trail. 1534 Comment
  OBI13753  Phacelia minor Barrett Anderson 1975-5-10 s.n. Orange In Cleveland Natl Forest 244 Comment
  RSA603111  Phacelia minor R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains. Cleveland National Forest. Comment
  RSA699146  Phacelia minor Minor Warne 1934-5-6 s.n. Orange Ortega Highway Comment
  HSC13724  Phacelia parryi S. M. Clapp 1966-4-7 15 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  RSA697793  Phacelia parryi R. H. McArthur 1934-3-17 s.n. Orange Gypsum Canyon. Comment
  UCR239645  Phacelia ramosissima Fred M. Roberts 2012-5-9 7554 Orange Santa Ana Mountains, Lake Forest, along Serrano Creek hiking trail, 0.7 m south-southwest of intersection of Commercentre and Dimension Drives 152 Comment
  UCSB48216  Phacelia ramosissima Roberts, Dar; Roberts, Jr., Fred 1983-5-3 Orange Santa Ana Mtns.; Hot Springs Canyon, 0.5 km. by road N of Cal. Rte. 74 (San Juan Guard Sta.) 238 Comment
  RSA428279B  Phacelia suaveolens subsp. keckii Albert J. Perkins 1914-6-14 s.n. Orange Santiago Peak. Comment
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Jul 21 2018
  SD119372  Phacelia suffrutescens Reid Moran 1977-6-13 24234 Orange Willow Canyon, tributary of Laguna Canyon, on shaded north slope. 124 Comment
  IRVC8439  Phalaris aquatica J. B. Anderson 1966-5-15 642 Orange Upper Newport Bay: along Irvine Avenue at 23rd Street. Southern Coastal Comment
  CAS-BOT-BC250615  Phalaris minor Carl B. Wolf 1932-7-7 3854 Orange Bryant Ranch, Bixby Ave., 3/10 mi. E. of Los Alamitos Blvd., about 250 ft. E. of S.W. corner of N.W. 40 of N.E. of Sect. 31 T4S R11W 48 Comment
  JEPS45890  Phalaris minor Lawrence M. Booth 1932-5-19 1076 Orange Newport Bay Comment
  RSA734636  Phalaris minor A. C. Sanders, T. B. Salvato 2008-5-13 35367 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  IRVC19911  Phalaris paradoxa Karlin G. Marsh 1983-5-29 s.n. Orange Irvine Ranch on ridge between South and Bommer cyns. Southern Coastal Comment
  SEINET10746310  Philodendron Thomas B. Croat 2003-4-5 Croat 87594 Orange Cultivated Plants from Rick M. Cirino, Cosa Mesa, California. Comment
  UCR66995  Phoenix canariensis A. C. Sanders 1990-10-6 10197 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  SFV16190  Pholistoma auritum var. auritum R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 38 Orange Newport Beach, Upper Newport Bay on Back Bay Drive about 0.5 miles north of Shellmaker Island. Mesic roadside at base of coastal bluff adjacent to semi-disturbed coastal sage scrub area. Comment
  UCSB41810  Phoradendron leucarpum subsp. tomentosum Hufstader, R. 1971-3-24 Orange Trabuce Canyon approx. 7 miles from Santiago Cyn. Rd, 426 Comment
  CAS-BOT-BC141054  Phoradendron serotinum subsp. macrophyllum Ira L. Wiggins 1966-3-25 20471 Orange Firestone Boy Scount Reservation, eash of Brea Comment
  RSA683934  Phyllospadix scouleri E. Yale Dawson 1957-2-14 16129 Orange Laguna Beach, Orange County Comment
  RSA384023  Phyllospadix torreyi Anstruther Davidson 1910-6-28 2493 Orange Balboa Beach. Comment
  UCR19761  Phyllospadix torreyi F. M. Reed 1932-5-24 7233 Orange South Coast, San Juan Capistrano, behind beach dune Comment
  UCR210372  Picris echioides T. B. Salvato, Billy Deane 2006-10-16 1936 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  RSA5314  Pinus attenuata B. D. Stark 1933-1-5 4501 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  IRVC2815  Pinus coulteri A. S. Boughey 1965-3-16 58 Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  UCR231192  Pinus coulteri A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39932 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1152 Comment
  RSA651141  Pinus radiata Jack D. Ingwersen 1962-6-2 s.n. Orange Anaheim Comment
  UCR231188  Pinus sabiniana A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39944 Orange Peninsular Range; Santa Ana Mountains, Beek's Place on Main Divide Truck Trail 863 Comment
  UCR188937  Pittosporum undulatum Robert DeRuff 2006-1 566 Orange Newport Beach, Upper Newport Bay, Eastbluff 30 Comment
  UCR107848  Plagiobothrys acanthocarpus Scott D. White, B. Leatherman 1998-1-26 6064 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Avenue and new freeway (Bonita Cyn.) 37 Comment
  RSA732066  Plagiobothrys canescens A. C. Sanders, Fred M. Roberts 2008-3-25 34511 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA368943  Plagiobothrys collinus var. californicus Albert J. Perkins 1914-3-9 s.n. Orange Laguna Beach Comment
  SD27970  Plagiobothrys collinus var. californicus Carl B. Wolf 1932-3-14 2710 Orange Rancho Santa Ana Botanic Garden 630 Comment
  IRVC14769  Plagiobothrys collinus var. fulvescens D. Orr 1965-3-27 Orange Trabuco Rd. 3mi E El Toro Marine Base. El Toro Comment
  UCSB52464  Plagiobothrys collinus var. fulvescens Roberts, Fred 1982-4-2 Orange Laguna Niguel; hills, 3.5 km. ESE Aliso Peak; 3.2 km. ESE Alicia Fire Station, N of Del Avion 100 Comment
  RSA683082  Plagiobothrys nothofulvus Scott D. White, Amanda Duchardt 2003-5-1 9157 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  RSA732238  Plagiobothrys nothofulvus A. C. Sanders, Fred M. Roberts 2008-4-22 35045 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  RSA0045607  Plagiobothrys nothofulvus Keith E. Hoffmaster 1935-2-9 840 Orange Santa Ana Mts., El Toro. Comment
  RSA0045609  Plagiobothrys nothofulvus Keith E. Hoffmaster 1935-2-9 840 Orange Santa Ana Mts., near El Toro. Comment
  RSA695839  Plagiobothrys tenellus J. R. Bruff s.n. Orange Modjeska s Home Comment
  RSA580936  Planodes virginica D. Bramlet 1995-4-29 2405 Orange Fairview Park, City of Costa Mesa, the site is located some 366m N of the intersection of Wilson and Canyon Dr. and 152m W of the canyon School, on a mesa overlooking the Santa Ana River. 43 Comment
  RSA412598  Plantago bigelovii subsp. californica Anstruther Davidson 1910-04 2350 Orange Corona Del Mar. Comment
  POM4541  Plantago erecta P. A. Munz 1918-5-4 2212 Orange Laguna. Comment
  RSA401984A  Plantago erecta Albert J. Perkins 1921-04 s.n. Orange Mesa near Arch Beach, Santa Ana. Comment
  RSA401987B  Plantago erecta Anstruther Davidson 1910-4-1 s.n. Orange Corona Del Mar. Comment
  RSA680562  Plantago erecta Scott D. White 2003-3-21 8814 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
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Oct 4 2010
  RSA681952  Plantago erecta Fred M. Roberts, D. E. Bramlet 2003-3-7 5564 Orange Donna O'Neill Land Conservancy; West slopes of Christianitos Canyon, Middle Ridge Trail, 0.1km NW Gato Gate. 123 Comment
  RSA734805  Plantago erecta A. C. Sanders, Fred M. Roberts 2008-5-6 35253 Orange Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  POM260478  Plantago indica Ella Carter 1941-08 1 Orange Near fish canneries, not far from 29th str, Newport Beach. Comment
  RSA698383  Plantago major Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  RSA592105  Plantago virginica R. E. Riefner 1994-4-15 94 -324 Orange NE of cooks Reservoir, Dana Hills, City of Dana Point. Comment
  RSA731755  Platanus racemosa Fred M. Roberts, Sandy Leatherman 2007-11-9 6650 Orange San Juan Canyon along San Juan Creek, within the community of San Juan Hot Springs. 216 Comment
  RSA722433  Platystemon californicus L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. 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
  OBI74895  Plecostachys serpyllifolia Unknown 2009-7-18 09 -151 Orange City of Dana Point, beach near Salt Crk, vicinity of Ritz Carlton Resort 3 Comment
  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
  RSA766068  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-3-18 07 -153 Orange City of Newport Beach, Dover Beach, Newport Bay, vicinity of Morning Star Ln. and Polaris Dr. 3 Comment
  RSA790114  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-7-7 11 -73 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 5 Comment
  UCSB48039  Pluchea odorata Roberts, Jr., Fred 1981-9-26 Orange Newport Beach; Pacific Coast Highway, 0.3 km. W Newport Blvd.; 0.4 km. SE Bench Mark 10 3 Comment
  RSA930  Pluchea odorata J. T. Howell 1927-9-24 751 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  UCR220961  Pluchea sericea Dick Newell, Don Millar 2010-4-27 020 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon wash 1/4 mile north of Hwy 241 toll road 226 Comment
  CAS-BOT-BC255535  Poa annua Ira L. Wiggins 1966-3-1 20485 Orange At corner of South Campus Drive and State College Blvd, Fullerton Comment
  IRVC17048  Poa annua Bruce Reynolds 1965-4-19 s.n. Orange Newport Beach; Corona del Mar, Corona Del Mar High School. Southern Coastal 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
  RSA708363  Poa secunda subsp. secunda Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6233 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  CAS-BOT-BC225238  Polemoniaceae E. W. Lathrop 1974-6-27 7420 Orange Trabuco Oaks, Trabuca Canyon, Cleveland Nat'l Forest 396 Comment
  RSA562742  Polycarpon depressum Steve Boyd 1992-5-19 7438 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  UCR158809  Polygala cornuta subsp. fishiae A. C. Sanders, Mark A. Elvin 2005-9-2 31611 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 970 Comment
  RSA557729  Polygala cornuta var. fishiae Steve Boyd, Tim S. Ross 1992-5-4 7172 Orange Santa Ana Mountains, San Juan Canyon along Ortega Hwy (Hwy 74) at pullout 2.9 miles east of San Juan Guard Station. Comment
  SD152784  Polygala cornuta var. fishiae Steve Boyd 1992-5-20 7478 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area, Western edge in Lucas Canyon, along foot trail upstream from end of old road grade to upper homestead (corrugated steel bldg) 351 Comment
  UCD170929  Polygala cornuta var. fishiae A. C. Sanders; T. B. Salvato, Kent Beaman 2011-11-3 39941 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail. Chaparral on ridge along road, with knobcone pine grove. 1143 Comment
  UCR175446  Polygala cornuta var. fishiae Mark A. Elvin, A. C. Sanders 2005-9-2 4496 Orange Peninsular Ranges, Santa Ana Mtns: Mouth of Lion Canyon, just upstream from Lower San Juan Campground 457 Comment
  UCR261686  Polygala cornuta var. fishiae Dick Newell, Judy Booth 2014-5-25 374 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd./Silverado Canyon Rd., 1.8 miles due north of Modjeska Peak 893 Comment
  CAS-BOT-BC414039  Polygonum aviculare subsp. aviculare Alma Sweet 1919-1-1 s.n. Orange Unspecified Comment
  RSA731907  Polygonum lapathifolium Fred M. Roberts, Sandy Leatherman 2007-11-27 6672 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  UC536913  Polygonum lapathifolium Lawrence M. Booth 1932-7-30 1342 Orange Santa Ana River Comment
  UCR193844  Polygonum lapathifolium A. C. Sanders, Fred M. Roberts 2008-7-16 35872 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  RSA599648  Polygonum lapathifolium Fred M. Roberts 1995-4-21 4929 Orange Irvine: San Joaquin Hills, Quail Hill area near end of San Canyon Road, 2.9 km ENE French Hill. 49 Comment
  RSA0062672  Polypodiaceae Doug Bell 1949-2-5 s.n. Orange Newport Beach. 6 Comment
  IRVC3042  Polypodium californicum G. Howard 1965-3-31 HS0571 Orange Silverado Canyon. Santa Ana Mountains Comment
  IRVC3045  Polypodium californicum A. S. Boughey 1965-3-5 51 Orange Trabuco Canyon. Santa Ana Mountains Comment
  POM12349  Polypodium californicum P. A. Munz 1921-4-16 171 Orange Laguna Beach. Comment
  RSA617721  Polypodium californicum Scott D. White 1996-12-20 4629 Orange Above Modjeska Canyon: Proposed water tank site. 427 Comment
  RSA689928  Polypodium californicum Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  RSA698540  Polypodium californicum Jeanne Paxton 1934-2-25 s.n. Orange Sugar Loaf Canyon, Arch Beach Comment
  UCR209348  Polypodium californicum Fred M. Roberts 2008-4-14 6890 Orange Santa Ana Mountains, Upper Weir Canyon, east fork, 3.4 km eat of Robbers Peak, Irvine Ranch Conservancy 433 Comment
  SEINET218267 Image available Polypodium californicum Robinson, Crocker 1916-3-28 Orange Santa Ana Mts. Comment
  IRVC13915  Polypogon interruptus R. Meinzer 1971-5-24 111 Orange Santa Ana Mountains: Silverado Canyon, Silverado Creek at end of paved road. Peninsular Ranges 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
  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
  RSA483352  Polypogon monspeliensis E. Crow 1929-4-7 294 Orange SE of Orange Co. Park; Santa Ana River. Comment
  UCR100453  Polypogon monspeliensis B. G. Pitzer 1996-4-30 2773 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR193434  Polypogon monspeliensis A. C. Sanders, Fred M. Roberts 2008-5-6 35239 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, south of Santiago Reservoir 351 Comment
  RSA91997  Polypogon monspeliensis F. W. Peirson 1924-5-31 4649 Orange Laguna Canyon near Laguna Beach. 107 Comment
  CAS-BOT-BC237509  Polypogon viridis Ira L. Wiggins 1965-11-3 20318 Orange Between trees in orange grove near corner of Dowling Street and Crowther avenue, 0.5 mile S of Placentia Comment
  IRVC176  Polystichum imbricans Mike Munier 1965-4-20 HS 545 Orange Costa Mesa. Southern Coastal Comment
  CAS-BOT-BC108544  Populus balsamifera R. E. Jr. Riefner 2006-4-8 06 -111 Orange South Coast: San Juan Capistrano (city), San Juan Creek at La Novia Ave. (San Juan Capistrano 7.5' Q.) 21 Comment
  IRVC28638  Populus balsamifera subsp. trichocarpa Mark A. Elvin, A. C. Sanders 2005-9-2 4493 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  UCR171019  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2006-4-8 06- 111 Orange South Coast, San Juan Capistrano (city), San Juan Creek at La Novia Ave. 22 Comment
  UCR174187  Populus balsamifera subsp. trichocarpa A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33023 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
  JEPS117746  Populus trichocarpa Mark A. Elvin, A. C. Sanders 2005-9-2 4493 Orange Santa Ana Mtns: Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Comment
  RSA599636  Populus trichocarpa Fred M. Roberts Jr., P. Barrett, Gina Schultz 1995-7-25 4965 Orange San Juan Capistrano: San Juan Creek, 0.1 km SW La Novia Street bridge. 27 Comment
  RSA722930  Populus trichocarpa R. E. Riefner Jr. 2007-6-12 7 -253 Orange City of San Juan Capistrano. Vicinity of Calle Arroyo/ Paseo Esteban at San Juan Creek. 35 Comment
  CAS-BOT-BC445244  Portulaca oleracea Ira L. Wiggins 1965-11-7 20360 Orange Vacant lot between State College Blvd. and Troy High School campus, Fullerton. Comment
  CAS-BOT-BC453919  Potamogeton pectinatus Street; Williams 1919-5-4 2690 Orange Laguna Beach Region. Laguna Lakes Comment
  UCR156568  Prosopis velutina Karlin G. Marsh 1983-9-21 s.n. Orange San Juan Capistrano 183 Comment
  RSA613774  Prunus caroliniana B. Pitzer, M. Georgiady 1997-4-5 3078 Orange San Joaquin Hills Crystal Cove State Park, along No Dogs Trail (from parking area, along western bottom edge of ridge between Muddy Canyon and Moro Canyon), to just below intersection with Poles trail 152 Comment
  RSA542402  Prunus ilicifolia Fred M. Roberts Jr., Carol A. Williams 1988-3-8 3826 Orange San Juan Canyon, Hwy 74, 1.2 km SSW Lower San Juan Picnic Ground. 378 Comment
  UC1128385  Prunus ilicifolia A. Lewis Apr 1934 384 Orange Harding Canyon; Cleveland National Forest 762 Comment
  JEPS29201  Pseudognaphalium biolettii Rimo Bacigalupi and P. C. Hutchison 1962-3-16 8235 Orange 2 mi n Doheny Beach State Park; U.S. Highway 101 Comment
  RSA609007  Pseudognaphalium biolettii L. M. Booth 1932-5-19 1067 Orange Newport Bay Comment
  UCR222874  Pseudognaphalium biolettii T. B. Salvato 2010-10-27 5134 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  UCR230237  Pseudognaphalium biolettii Dick Newell, Don Millar 2011-3-15 088 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
  UCR232932  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2011-10-19 11- 147 Orange South Coast, city of San Juan Capistrano, San Juan Creek, c. 0.2 mi west of intersection of Paseo Tirador and Calle Arroyo Street 31 Comment
  UCR281842  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2017-8-14 17- 408 Orange South Coast, city of San Juan Capistrano, San Juan Creek. Northeast from San Juan Creek Road and Camino Chico, opposite Blenheim Farms & Equestrian Center, south of Ortega Hwy 47 Comment
  UCSB48012  Pseudognaphalium microcephalum Roberts, Jr., Fred 1980-9-14 Orange Santa Ana Mtns.; San Juan Canyon, 0.6 km. SW Lower San Juan Picnic Ground; 1.9 km. WNW Sitton Peak 410 Comment
  UCR240071  Pseudognaphalium ramosissimum Dick Newell, Judy Booth 2012-8-12 283 Orange South Coast, Newport Beach on Back Bay Drive, 0.6 mi north of Big Canyon parking lot 3 Comment
  JEPS20429  Pseudognaphalium stramineum L. M. Booth 1932-7-19 1275 Orange Bolsa Chica Comment
  UCR215313  Pseudognaphalium stramineum Fred M. Roberts 2008-3-27 6804 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west Marine Institute, Dana Point Harbor 75 Comment
  IRVC27729  Psilocarphus brevissimus var. brevissimus Mark A. Elvin 2004-5-2 3413 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  SD152923  Psilocarphus tenellus Steve Boyd, Tim Ross 1992-5-19 7426 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Conayon Trail from access road to Rancho Carrillo (7S06) north into Aliso Canyon. Along trail on hard-packed soil. 366 Comment
  RSA797912  Psoralea macrostachya Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49822 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA771718  Pteridium aquilinum Robert Allen, Richard S. Newell, Roger E. Reinke 2006-6-30 s.n. Orange Santa Ana Mts., Holy Jim Canyon Trail. About 1 mile up trail from forest gate. 609 Comment
  POM18129  Pteridium aquilinum var. pubescens P. A. Munz 1923-9-7 7735 Orange Santa Ana Mountains: on trail from Trabuco Canyon to Santiago Peak 1219 Comment
  POM8744  Pterostegia drymarioides P. A. Munz, R. D. Harwood 1920-4-20 3724 Orange Santa Ana Mountains: Silverado Canon 549 Comment
  UCSB43273  Pterostegia drymarioides Fletcher, Martin 1980-3-29 Orange 0.5 miles west of Drakes Beach. Comment
  UC1731284  Pulicaria paludosa Dean W. Taylor 1994-6-7 14414 Orange along Backbay Drive at the junction with San Joaquin Hill Drive, Newport Bay Newport Bay; South Coast Region, Newport Bay 6 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
  UCR193770  Pulicaria paludosa A. C. Sanders, Fred M. Roberts 2008-7-3 35710 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UCR210376  Pulicaria paludosa T. B. Salvato, Billy Deane 2006-10-16 1932 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 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
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Dec 12 2018
  RSA234485  Pulicaria paludosa James Henrickson 1970-9-5 5352 Orange 3 miles NW of Huntington Beach. 1 Comment
  RSA539419  Pulicaria paludosa Fred M. Roberts, Doug Willick 1988-9-16 4137 Orange Peralata Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.0 kilmeter N Robbers Peak. 180 Comment
  UC1597259  Quercus Fred M. Roberts Jr. and Carol A. Roberts 1989-4-7 4264 Orange 0.4 km w West Moulton Peak; Aliso-Wood Canyon Regional Park, Upper Wood Canyon 104 Comment
  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
  POM10465  Quercus agrifolia E. A. Zumbro 1904-5-9 417 Orange Laguna - first right land canyon coming up from Laguna Beach Comment
  RSA154  Quercus agrifolia J. T. Howell 1927-6-21 179 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA697621  Quercus agrifolia J. R. Bruff s.n. Orange Orange Co. Park. Comment
  UC484237  Quercus agrifolia C. B. Wolf 1932-3-6 Orange 1.5 mi below Trabuco Oaks (on Trabuco Canyon Road, w slope Santa Ana Mts.); Santa Ana Mts. 304 Comment
  IRVC20824  Quercus agrifolia var. agrifolia Fred M. Roberts 1982-7-25 784 Orange South Laguna; Niguel Hill, canyon on S flank; 0.9km ESE Aliso Peak; 1.1km NNW Bench Mark 133 Southern Coastal 195 Comment
  UCSC009093  Quercus agrifolia var. agrifolia Al Keuter 2015-3-25 10- 17 -3 Orange SR 133 near Laguna Beach 46 Comment
  IRVC24550  Quercus berberidifolia Fred M. Roberts 1987-8-6 3578 Orange San Joaquin Hills: Pelican Hill; N slope; 0.6mNNW Pelican Hill survey mark. Southern Coastal 194 Comment
  RSA0105422  Quercus berberidifolia Keith E. Hoffmaster 1930-1 406 Orange Santa Ana Mts. Comment
  IRVC29765  Quercus chrysolepis Barry S. Nerhus, Mark A. Elvin 2006-11-4 6 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  UCR145826  Quercus chrysolepis June Latting 1973-1-2 s.n. Orange Santa Ana Mountains, Silverado Canyon, 6.3 miles from Silverado Forest Station [presumably up canyon from Silverado] at 'S' curve in road 1220 Comment
  CAS-BOT-BC86387  Quercus dumosa John Thomas Howell 1927-6-16 2542 Orange ridge N side of Santa Ana canyon 152 Comment
  RSA0013860  Quercus dumosa Fred M. Roberts 2012-5-10 7560 Orange San Joaquin Hills: Buck Gully, S Fork, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive. 183 Comment
  RSA659555  Quercus dumosa P. Shirokawa 1998-5-7 22 Orange Cleveland National Forest- Trabuco Ranger District, 3.2 miles from Ortega Highway (State Highway 74) on North Main Divide Road 1021 Comment
  UCD63655  Quercus dumosa Daniel Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel. Dana Point Highlands. Pacific Island Drive. 70 Comment
  UCSB52405  Quercus dumosa Roberts, Fred 1982-6-30 Orange Laguna Niguel; Niguel Hill, Pacific Island Dr., 2.0 km. SE Aliso Peak; 1.3 km. E Bench Mark 133 130 Comment
  UCSB52409  Quercus dumosa Roberts, Fred 1982-7-1 Orange South Laguna; Niguel Hill, at end of Sea Island Dr., 1.9 km. SE Aliso Peak 210 Comment
  RSA649690  Quercus engelmannii R. E. Riefner Jr. 2000-6-1 20 -453 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 473 Comment
  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
  UCD132263  Quercus palustris Peter Evans 2013-4-20 s.n. Orange Niguel Botanical Preserve located at 29751 Crown Valley Parkway, Laguna Niguel. 99 Comment
  SD247439  Quercus suber R. E. Riefner Jr. 2014-4-29 14 89 Orange City of Yorba Linda, Yorba Linda Regional Park along East La Palma Ave., W of Yorba Llinda Blvd; Parking Lot #7. 92 Comment
  CAS-BOT-BC104666  Quercus wislizeni Carl B. Wolf 1933-10-8 55339 Orange Santa Ana Mts. Main divide motorway, NW side of Trabuco Peak 1310 Comment
  UC5679  Quercus wislizeni W. H. Brewer Jan 1861 137 Orange Santa Ana Mountains 914 Comment
  UC5709  Quercus wislizeni W. H. Brewer Jan 1861 137 Orange Santa Ana Mountains Comment
  IRVC1347  Quercus wislizeni var. frutescens Mike Munier 1963-4-27 s.n. Orange O'Neill Park Southern Coastal Comment
  IRVC24473  Quercus wislizeni var. frutescens Fred M. Roberts, R. L. Allen 1986-2-23 2595 Orange Santa Ana Mountains; W of Main Divide Truck Trail; 2.1km E Los Pinos Peak. Peninsular Ranges 1115 Comment
  IRVC25093  Quercus wislizeni var. frutescens Fred M. Roberts, Gordon A. Marsh 1986-8-27 3114 Orange Modjeska Peak; Main Divide Truck Trail; SW ridge; 1.0km SW summit Santa Ana Mountains 1530 Comment
  RSA644971  Quercus wislizeni var. frutescens R. E. Riefner Jr. 2000-4-13 2 -361 Orange NCCP North Ranch Policy Plan Area. Upper drainage of Fremont Canyon near National Forest boundary, S. of Claymore Mine. USGS 7.5' Quad: Black Star Canyon. 610 Comment
  UCR194557  Rafinesquia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35326 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  RSA724035  Ranunculus arvensis R. E. Riefner 2000-4-2 0 -166 Orange Santiago Equestrian Center, Santiago Canyon Rd., N 0.5 m from Ridgeline Rd., Oso Creek drainage. 392 Comment
  RSA399407  Ranunculus californicus M. B. Dunkle 1935-3-3 4342 Orange San Juan Canyon. 457 Comment
  RSA625805  Ranunculus californicus Scott D. White 1998-4-24 6344 Orange Mission Viejo Area: Aliso Creek watershed, E of El Toro Rd. just N of jct. w/ Valley Vista Wy. Large proposed subdivision called 'Saddleback Meadow.' 305 Comment
  JEPS55026  Ranunculus californicus Alice King 1908-3-9 Orange South Main Street Santa Ana Comment
  POM6265  Ranunculus hebecarpus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2630 Orange Santa Ana River Canyon. Comment
  CLARK-A1528-968  Raphanus raphanistrum Patricia A. Andrews 1975-6-26 5913 Orange 9 Comment
  IRVC19391  Raphanus sativus R. L. Allen 1983-2-12 A623 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  CAS-BOT-BC74227  Raphanus sativus Ira L. Wiggins 1966-2-12 20433 Orange North side of La Palma Avenue, near Harbor Boulevard, Anaheim. Comment
  CDA1075  Rhamnus alaternus D. G. Kelch 2006-12-9 6 .546 Orange Along Newport Back Bay Dr. in side canyon. Comment
  IRVC29872  Rhamnus alaternus Mark A. Elvin, D. Kelch 2006-12-9 5300 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  RSA769339  Rhamnus californica E. W. Lathrop 1974-6-27 7412 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UC592928  Rhamnus californica subsp. californica P. C. Everett 1936-9-19 Orange Silverado Canyon, in vicinity of forest service road gate at base of road Santa Ana Mountains 762 Comment
  LA207810  Rhamnus crocea subsp. ilicifolia Carl B. Wolf; 1931-3-6 1845 Orange Santa Ana Mountains, Trabuco Canyon, 0.5 mi. above Trabuco Oaks 457 Comment
  CAS-BOT-BC56027  Rhamnus ilicifolia P. C. Everett 1936-9-19 8269 Orange Santa Ana Mts., Silverado Canyon, in vicinity of Forest Service Gate at base of road 762 Comment
  LA207817  Rhamnus ilicifolia Carl B. Wolf; 1931-3-6 1841 Orange Santa Ana Mountains, Trabuco Canyon, 0.5 mi. above Trabuco Oaks 457 Comment
  OBI5868  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1841 Orange W sloep Santa Ana Mts, Trabuco cyn, 1/2 mi above Trabuco oaks 457 Comment
  RSA1699  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1838 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA463  Rhamnus ilicifolia J. T. Howell 1927-7-24 465 Orange Claymine Canyon near Sierra Peak. 152 Comment
  RSA734987  Rhamnus ilicifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35297 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  UC592699  Rhamnus ilicifolia P. C. Everett 1935-6-19 Orange 2 mi below Forest Service Patrol Station; Santa Ana Mts., Trabuco Canyon 365 Comment
  UC592835  Rhamnus tomentella subsp. cuspidata Carl B. Wolf 1933-8-24 Orange Summit of Santiago Pk. Santa Ana Mts. 1731 Comment
  UC1121790  Rhamnus tomentella subsp. tomentella J. B. Spring 1931-4-14 32 Orange Cold Spring Canyon Corona Quad. 548 Comment
  UC484250  Rhus C. B. Wolf 1931-3-6 Orange 1 1/2 mi below Trabuco Camp grounds (Trabuco Canyon, w slope Santa Ana Mountains); Santa Ana Mountains 548 Comment
  CAS-BOT-BC170435  Rhus integrifolia Helen D. Geis 1902-4-1 s.n. Orange Red Hill near Santa Ana Comment
  LA62809  Rhus integrifolia Carl Epling; Harlan Lewis 1940-4-21 sn Orange hills 6 mi. E of San Juan Capistrano Comment
  RSA2072  Rhus integrifolia C. B. Wolf 1931-3-6 1857 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  RSA5376  Rhus integrifolia B. D. Stark 1932-12-30 4463 Orange Rancho Santa Ana, slopes NW of tennis court. 192 Comment
  SD39754  Rhus integrifolia Edith A. Purer 1932-8-31 4875 Orange Along Route 101 Comment
  SJSU375  Rhus integrifolia A. W. Jacobs 1938-8-4 Orange Trabuca Canyon Rd, Santa Ana Mts c. 6.5 mi NE of El Toro Comment
  UCR16589  Rhus integrifolia David M. Peterson 1966-3-9 660309- 7 Orange 3 mi east of San Juan Capistrano on the road to Elsinore 306 Comment
  UCR193788A  Rhus laurina A. C. Sanders, Fred M. Roberts 2008-7-3 35685 Orange Peninsular Range; Santa Ana Mtns., upper Weir Canyon, along Windy Ridge Rd. at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  CAS-BOT-BC167930  Rhus ovata A. M. White 1974-6-1 1404 Orange Ca. 20 mi. E. of Santa Ana N. of Silverado Canyon Comment
  RSA17576  Rhus ovata Percy C. Everett 1936-8-28 8236 Orange 1 mi. from Ortega Hgwy on road to La Cienega. 579 Comment
  RSA30326  Rhus ovata C. B. Wolf 1941-9-21 11185 Orange Silcerado Canyon 732 Comment
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Sep 20 2013
  RSA695989  Rhus ovata Keith E. Hoffmaster 1934-4-8 s.n. Orange Gypsum can (n. Corona), Santa Ana Mts Comment
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Dec 11 2011
  CAS-BOT-BC93075  Ribes californicum var. hesperium Carl B. Wolf 1931-3-6 1849 Orange 1 mile below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mountains. 609 Comment
  UC1127397  Ribes californicum var. hesperium H. E. Norton 1931-3-14 40 Orange Verdugo Potrero Corona Quadrangle Comment
  RSA0023263  Ribes californicum var. hesperium Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49779 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  CAS-BOT-BC173123  Ribes indecorum C. B. Wolf 1931-3-6 1833 Orange 1 1/2 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  OBI5869  Ribes indecorum Carl B. Wolf 1931-3-6 1833 Orange 1.5 mi below Trabuco Oaks along Trabuco Cyn rd, W slope of Santa Ana Mts 305 Comment
  POM305815  Ribes indecorum Henry J. Ramsey 1937-4-2 1044 Orange Capistrano Canyon. Comment
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Dec 17 2011
  RSA162689  Ribes indecorum J. D. Olmsted 1960-1-9 1093 Orange Hidden Ranch at Old Indian Campground, Santa Ana Mts. Black Star Creek. 640 Comment
  RSA0021665  Ribes malvaceum Keith E. Hoffmaster 1932-4-17 517 Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  RSA1335  Ribes malvaceum var. viridifolium J. T. Howell 1929-2-11 1225 Orange Claymine Canyon, Santa Ana Mts. 305 Comment
  RSA441492  Ribes malvaceum var. viridifolium Lester H. Cushman 1932-3-5 15733 Orange Trabuco Canyon. Comment
  UCD169741  Ribes malvaceum var. viridifolium R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  UCSB47637  Ribes malvaceum var. viridifolium Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail; 0.2km west of Trabuco Peak; Santa Ana Mtns 1347 Comment
  RSA0016149  Ribes roezlii Keith E. Hoffmaster 1932-4-17 519 Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  RSA0018262  Ribes roezlii Christopher Davidson 1977-5-18 5613 Orange Cleveland National Forest; Santiago Peak (on Orange-Riverside Co. line) 1707 Comment
  POM293817  Ribes speciosum Lyman Benson 1947-4-27 12336 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  RSA454954  Ribes speciosum M. B. Dunkle 1933-5-30 3568 Orange Carbon Canyon Comment
  UC1127567  Ribes speciosum A. Lewis Mar 1934 332 Orange Santa Ana Canyon Corona Quadrangle Comment
  CHSC26237  Ricinus communis E. Bushey 1968-5-15 51 Orange San Juan Canyon Rd. 304 Comment
  IRVC21761  Ricinus communis Fred M. Roberts 1984-11-27 1439 Orange Novia St. bridge over San Juan Creek, 0.6km S Bench Mark 133, San Juan Capistrano 31 Comment
  RSA0014610  Romneya coulteri Justin M. Wood 2010-5-12 1685 Orange Santa Ana Canyon: Santa Ana River floodplain, 0.25 miles north of Coal Canyon wildlife corridor, west of Green River Golf Course of bluff south of the river. 122 Comment
  RSA131396  Romneya coulteri E. K. Balls, R. M. Beeks, Howard Brown 1958-6-27 23277 Orange 1 miles E of Silverado Stn. Silverado canyon, Santa Ana Moutains. 518 Comment
  UC1018189  Romneya coulteri J. Warren 1952-5-23 Orange Santa Ana Canon 457 Comment
  UCD96083  Romneya coulteri H. M. Hall 1913-5-28 9401 Orange Santiago Canon. 182 Comment
  POM7014  Rosa californica Philip A. Munz, L. T. Street, G. Williams 1919-5-4 2683 Orange Laguna Canyon. Comment
  RSA499273  Rosa californica Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. Comment
  RSA788914  Rosa californica Fred M. Roberts 2008-6-12 7038 Orange Lomas de Santiago: Loma Ridge, Shoestring Canyon, Shoestring Road near jct. with Santiago Cyn. Rd. 251 Comment
  POM2667  Rubus ursinus Philip A. Munz 1918-5-4 2219 Orange Laguna Beach. Comment
  RSA5356  Rubus ursinus B. D. Stark 1933-1-4 4493 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  RSA797907  Rubus ursinus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49817 Orange Santa Ana Mountains: Trabuco Canyon. 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
  VVC457  Rubus ursinus F. Ambrey 1959-5-4 s.n. Orange Santa Ana Mtns., 0.8 mi W of pavement end in Silverado Cyn. 649 Comment
  UCSC000946  Rubus ursinus Peter Kamb 1948-6-19 1089 Orange Santa Ana Mts., Holy Jim Canyon 610 Comment
  POM306304  Rumex conglomeratus Henry J. Ramsey, Henry J. Ramsey 1938-6-5 1392 Orange Laguna Beach, Irvine Comment
  SD227881  Rumex conglomeratus Scott D. White, Brian Leatherman 1997-6-12 5340 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. Stream. 46 Comment
  UC536918  Rumex conglomeratus Lawrence M. Booth 1932-6-9 1178 Orange 1 mi from ocean Santa Ana River Canal Comment
  CAS-BOT-BC421794  Rumex conglomeratus John Thomas Howell 1927-6-17 2554 Orange Hills on north side of Santa Ana Canon [Canyon] 152 Comment
  SEINET3823332 Image available Rumex crispus Lawrence M. Booth 1932-5-12 1051 Orange Newport Bay Comment
  UCR96898  Rumex crispus Scott D. White 1993-4-28 1285 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  RSA232221  Rumex crispus James Henrickson 1970-8-29 5313 Orange 3 mile NE of Huntington Beach in Pasture just N of Bolsa Chica Salt Marsh; 0 Comment
  CAS-BOT-BC433582  Rumex hymenosepalus Helen D. Geis 1902-5-1 s.n. Orange Majeska's Comment
  UC205909  Rumex maritimus D. L. Crawford 1916-7-26 Orange Laguna Canyon Laguna Beach Region Comment
  CAS-BOT-BC433862  Rumex salicifolius John Thomas Howell 1927-7-5 2654 Orange Near Horseshoe Bend, Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  RSA542460  Rumex salicifolius Fred M. Roberts 1988-4-14 3925 Orange IRVINE: south of the San Diego Freeway, 1.2 km. ENE French Hill. 41 Comment
  RSA0028511  Rupertia physodes N. C. Cooper 1944-6-4 1352 Orange San Juan Canyon, lower camp ground. 457 Comment
  CHSC26520  Ruppia maritima James Henrickson 1970-7-24 5023 Orange 3 miles NW of Huntington Beach; in Inner Bolsa Bay. 0 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
  SEINET6653605 Image available Salicornia virginica Gary Maxwell 1970-1 BC- 3 Orange ca. 4 mi. So. of Seal Beach, NE of Pacific Coast Hwy, at Bolsa Chica 0 Comment
  UC1929632  Salicornia virginica Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1101 Orange Seal Beach National Wildlife Refuge; Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  IRVC24541  Salicornia virginica J. Johnson 1976-8-10 Orange Newport [Back] Bay. Newport Beach Comment
  RSA303450  Salicornia virginica J. R. Shevock 1970-10-19 519 Orange Newport Back Bay 5 Comment
  RSA143  Salix exigua J. T. Howell 1927-6-6 41 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA4247  Salix exigua Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River and south of pear orchard, Santa Ana Canyon. 122 Comment
  RSA5779  Salix exigua Carl B. Wolf 1932-7-7 3845 Orange Bixby Ave., 0.7 mile W of Hansen road (0.2 mile W of SE corner of NE/4 of NW/4). 8 Comment
  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
  UCR195013  Salix exigua A. C. Sanders, Fred M. Roberts 2008-8-7 35988 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  UCR210360  Salix exigua T. B. Salvato, Billy Deane 2006-10-16 1929 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  UCR247916  Salix exigua Fred M. Roberts 2012-7-18 7675 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill 37 Comment
  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
  RSA6451  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  UCR102630  Salix gooddingii B. G. Pitzer 1997-4-15 3153 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
  UCR67011  Salix gooddingii A. C. Sanders 1990-10-6 10184 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  CAS-BOT-BC108201  Salix hindsiana John Harrington 1932-6-1 s.n. Orange San Juan Capistrano Comment
  RSA0034661  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA0038363  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  LA208695  Salix laevigata Carl Hedin; Joseph Ewan 1932-7-9 7681 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  LA210261  Salix laevigata Lawrence M. Booth; 1932-12-16 1380 Orange Santa Ana River, W of Wolfe's Ranch, 0.5 mi from ocean Comment
  RSA12633  Salix laevigata Carl B. Wolf 1934-8-16 6067 Orange Bryant Ranch east of Long Beach. Near N.W. corner section 33. Comment
  RSA725508  Salix laevigata Fred M. Roberts 2007-9-11 6566 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  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
  UCR241039  Salix laevigata Robert DeRuff 2011-1 576 Orange South Coast, Upper Newport Bay, Fish and Game headquarters at Shellmaker 4 Comment
  UCSB52458  Salix laevigata Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills: Carbon Canyon, Carbon Canyon Rd., 0.6km by road SW county line; 2.3km NNW Gilman Peak 76 Comment
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Oct 28 2018
  UCSB57547  Salix laevigata Roberts, Fred 1984-4-18 Orange Wagon Wheel Regional Park: 3.0km NNE Median Survey Mark; 2.1km NW Bench Mark 422 190 Comment
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Oct 28 2018
  POM122787  Salix lasiolepis Marcus E. Jones 1926-3-10 s.n. Orange Near Santa Ana Canyon. Comment
  RSA221065  Salix lasiolepis E. W. Lathrop 1966-4-6 6137 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA362783  Salix lasiolepis Louis C. Wheeler 1934-1-14 2366 Orange Aliso Creek near Laguna. 76 Comment
  UC498103  Salix lasiolepis L. M. Booth 1932-12-1 1384 Orange Santa Ana River; near mouth, about 3/4 mi from ocean Comment
  UC537261  Salix lasiolepis L. M. Booth 1932-12-31 1384 Orange Newport Bay 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
  UCR26632  Salix lasiolepis E. W. Lathrop 1966-4-6 6137 Orange Santa Ana Mtns., 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 396 Comment
  CAS-BOT-BC128463  Salix lasiolepis var. lasiolepis Carl B. Wolf 1932-2-15 2654 Orange Rancho Santa Ana Botanic Garden, north of administration building. 182 Comment
  UCR179757  Salix lucida subsp. lasiandra R. E. Riefner Jr. 2006-10-4 06- 475 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lake Forest, Aliso Creek near Portola Parkway at El Toro Rd. 225 Comment
  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-BC126301  Salix sessilifolia John Thomas Howell 1927-6-6 2440 Orange Santa Ana River bottom 152 Comment
  CAS-BOT-BC126309  Salix sessilifolia Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  RSA700176  Salix sessilifolia Minor Warne 1934-02 s.n. Orange Santa Ana River Comment
  CDA5811  Salpichroa origanifolia Margaret Bellue Oct 1944 Orange Yorba Linda. 0 Comment
  RSA39330  Salpichroa origanifolia E. L. Paddock 1943-5-19 12747 Orange 1 mile east of Brea. Comment
  SEINET5586232  Salsola australis A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-1 37200 Orange Peninsular Range; Santa Ana Mtsn.: Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 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
  UCR239631  Salsola australis Fred M. Roberts 2012-4-24 7513 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-BC176977  Salsola tragus John Thomas Howell 1927-6-6 2443 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  RSA5504  Salsola tragus C. B. Wolf 1932-6-28 3758 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA723482  Salsola tragus R. E. Riefner 2007-1-20 7 -16 Orange City of Lake Forest, along Bake Pwky. at Dimension Rd. 217 Comment
  RSA0095114  Saltugilia australis Clare B. Hardham 1962-4-5 8952 Orange Hills above San Clemente. Comment
  UCLA55657  Salvia C. Epling and H. Lewis 1940-4-21 Orange 6 mi e San Juan Capistrano Comment
  SD152816  Salvia apiana Steve Boyd, Tim 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). 404 Comment
  OBI30083  Salvia carduacea T. Pringle 1966-4-27 91 Orange RR Cyn Rd by RR Cyn Lake turnoff Comment
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Sep 6 2020
  UCD125511  Salvia dorrii var. dorrii G. H. Vansell 1933-6-30 s.n. Orange location unknown. Comment
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Sep 26 2020
  CAS-BOT-BC233675  Salvia leucophylla H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  RSA653189  Salvia leucophylla David Barrios 1991-5-8 22 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 366 Comment
  SD72780  Salvia leucophylla F. R. Fosberg 1931-6-19 S 5157 Orange Carbon Canyon, Puente Hills. Comment
  UCR228791  Salvia leucophylla Dick Newell, Don Millar 2011-5-10 147 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
  UCR102017  Salvia mellifera B. G. Pitzer 1997-3-25 3020 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR131892  Salvia mellifera J. Mallory, V. McCoy 1995-7-3 6454- 127 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. NE of confluence w/ Santiago Canyon Wash; north of Irvine Lake. 300 Comment
  SEINET12273226  Salvia mellifera J. F. Bright, Wyman, C. 1933-1 8174 Orange Near Laguna(?) Comment
  IRVC26683  Salvia sonomensis Mark A. Elvin 2004-4-4 3217 Orange UCI Arboretum Southern Coastal 15 Comment
  CLARK-A1528-589  Salvia spathacea Danny Sall 1970-4-25 3 Orange Silverado Canyon Comment
  IRVC332  Sambucus mexicana E. McRae 1965-3-30 Orange Corna del Mar High School. Newport Beach Comment
  POM201930  Sambucus mexicana L. M. Booth 1932-5-27 s.n. Orange Newport Bay. 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
  UCR159777  Sambucus mexicana Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; along marsh road 6 Comment
  UCR175222  Sambucus mexicana Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; along marsh road 5 Comment
  UCR233745  Sambucus nigra Fred M. Roberts 2008-6-12 7039 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge, Shoestring Canyon, Shoestring Road near jct. with Santiago Cyn. Rd. 251 Comment
  RSA48925  Sanicula arguta P. A. Munz 1949-5-26 13378 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  UC1022510  Sanicula crassicaulis C. Ritchie Bell 1953-2-22 1387 Orange near sw edge of San Clemente State Park, above old dam San Clemente State Park Comment
  IRVC22550  Sanicula crassicaulis var. crassicaulis Fred M. Roberts 1985-5-1 1706 Orange Aliso Canyon, 2.1km NNE Aliso Peak, Aliso Viejo 67 Comment
  RSA696280  Sarcocornia perennis Keith E. Hoffmaster 1934-7-15 s.n. Orange Santa Ana Mts (Modjeska) Comment
  JEPS27447  Sarcostemma cynanchoides subsp. hartwegii John Thomas Howell 1927-7-24 2819 Orange Santa Ana Canyon, Rancho Santa Ana 152 Comment
  SD41969  Satureja chandleri Darley F. Howe 1947-4-29 1555 Orange San Juan Creek Comment
  RSA725514  Schinus molle Fred M. Roberts, Robert L. Allen 2007-9-28 6616 Orange Lomas de Santiago: above lower Santiago Cyn. wash along Santiago Cyn. Rd. just south of Irvine Mesa, 3.3 km N Bolero Lookout. 332 Comment
  RSA455  Schinus molle J. T. Howell 1927-6-21 182 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  IRVC1823  Schismus barbatus I. L. Wiggins 1966-2-18 20 448 Orange Rancho Santa Ana: roadside 1/2 mile W of entrance to Rancho Santa Ana near the end of Orange County road at the end of Orangethorpe Avenue. Santa Ana Mountains Comment
  IRVC19942  Schismus barbatus Gordon A. Marsh, Karlin G. Marsh 1983-5-2 s.n. Orange Burn area between Coal Canyon and Gypsum Canyon. Santa Ana Mountains 421 Comment
  POM6359  Schoenoplectus americanus Phillip A. Munz, L. T. Street, G. Williams 1919-5-3 2652 Orange Santa Ana River Canyon. Comment
  RSA735750  Schoenoplectus americanus A. C. Sanders, Fred M. Roberts 2008-6-17 35493 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff s Training Facility, just east of Hwy 241 280 Comment
  UCR258354  Schoenoplectus californicus Fred M. Roberts 2014-4-21 7873 Orange South Coast, SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin 113 Comment
  POM202160  Schoenoplectus maritimus L. M. Booth 1932-5-30 1133 Orange Bog on south side of Newport Lagoon. Comment
  RSA233015  Schoenoplectus maritimus Christopher Davidson, Gerald L. Benny 1971-6-15 1554 Orange Carbon Canyon, 1 mile SW of Carbon Canyon mineral spring. Comment
  RSA234489  Schoenoplectus maritimus James Henrickson 1970-7-25 5080 Orange 3.5 miles NW of Huntington Beach growing along graded inner slope of East Garden Grove-Wintersburg Flood Control Channel near Bolsa Chica Salt Marsh. At sea level. 0 Comment
  RSA542337  Schoenoplectus maritimus Fred M. Roberts, K. Keane 1988-5-25 4579 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.4 kilometers SSE Medium Rancho Survey Mark. 69 Comment
  RSA425212  Scrophularia californica subsp. floribunda N. C. Cooper 1944-6-4 1371 Orange San Juan Canyon, lower camp ground. 457 Comment
  RSA725578  Scrophularia californica subsp. floribunda Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6536 Orange Along dirt road on ridge between Fremont and Black Star Cyns., 5.2km ENE Irvine Lake Spillway and 1.7km W Hidden Ranch. 739 Comment
  UCR130352  Searsia pendulina A. C. Sanders, Mark A. Elvin 2003-10-12 27325 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  CAS-BOT-BC61966  Selaginella John Thomas Howell 1937-7-22 2834 Orange Claymine Canyon, Santa Ana Mts. 182 Comment
  IRVC3587  Selaginella bigelovii A. S. Boughey 143 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  UCR100184  Selaginella bigelovii Scott D. White 1996-12-20 4632 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA697122  Senecio californicus Minor Warne 1934-04 s.n. Orange Laguna Canyon Forks Comment
  IRVC895  Senecio californicus M. Savage 1965-4-6 Orange Irvine Terrace. Newport Beach Comment
  UCR147856  Senecio linearifolius Scott D. White 1998-6-26 6783 Orange Irvine, University of California, Irvine campus: low-lying seasonal wetland along mapped intermittent 'blueline' stream just north of Bonita Canyon Drive 70 Comment
  CHSC101560  Senecio linearifolius var. linearifolius Scott D. White 2003-7-7 9613 Orange Irvine. UC Irvine Campus. Directly west of T-intersection of Shady Canyon Cr. w/ Bonita Canyon Dr. (= Culver Dr.). 70 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
  RSA650816  Senecio vulgaris Daniel Truong 1991-5-5 7 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area'. Comment
  UCD135862  Senecio vulgaris Ira L. Wiggins 1966-3-31 20569 Orange Shoulder of Associated Road, 200 m. S of the Imperial Highway, Fullerton. Comment
  CAS-BOT-BC438198  Sesuvium verrucosum Le Roy Abrams 1901-6-1 1774 Orange Laguna Comment
  JEPS42884  Sesuvium verrucosum L. M. Booth 1932-7-4 1257 Orange Newport Bay Comment
  POM201707  Sesuvium verrucosum L. M. Booth 1932-7-4 s.n. Orange Newport Lagoon. 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
  RSA65740  Sesuvium verrucosum F. W. Peirson 1924-5-31 4655 Orange Laguna Canyon, near Laguna Beach 106 Comment
  SEINET238939 Image available Sesuvium verrucosum A. C. Sanders, D. Malueg; K. D. Jones 2000-1 23334 Orange Pacific Coast: Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 0 Comment
  IRVC1828  Setaria lutescens Robin Hobson 1965-4-10 HS 451 Orange Newport Beach; [Newport] Back Bay Southern Coastal Comment
  CAS-BOT-BC243633  Setaria pumila J. B. Anderson 1966-5-2 621 Orange Along Newport Freeway at 17th Street, Santa Ana Comment
  IRVC24151  Setaria verticillata Fred M. Roberts 1985-9-16 2243 Orange Peter's Creek Channel, 1.0km NNE Main St. bridge across from Alton Pkwy, Irvine 9 Comment
  CAS-BOT-BC240183  Setaria verticillata Ira L. Wiggins 1965-11-7 20361 Orange Vacant lot on west side of State College Blvd., near Troy High School, Fullerton Comment
  CAS-BOT-BC205739  Sidalcea neomexicana subsp. thurberi Carl B. Wolf 1936-5-25 7822 Orange East of Los Alamitos, at Northwest corner of Hansen Road & Bryant Ave. 15 Comment
  CAS-BOT-BC205742  Sidalcea neomexicana subsp. thurberi LeRoy Abrams 1903-4-17 3257 -a Orange Between Tustin and Myford Comment
  RSA17087  Sidalcea neomexicana subsp. thurberi Carl B. Wolf 1936-5-25 7822 Orange East of Los Alamitos, at NW corner of Hansen Rd. and Bryant Ave. 15 Comment
  SEINET6947338  Sidalcea sparsifolia W. P. Vestal, A. G. Vestal 1955-3-24 3453 Orange Trabuco Canyon, 5 miles east of El Toro. Comment
  RSA735261  Sidalcea spicata Keith E. Hoffmaster 1931-6-24 s.n. Orange South Fork Santa Ana River. Comment
  CAS-BOT-BC384498  Silene antirrhina Helen D. Geis 1902-1-1 522 Orange Santiago Cr. Comment
  RSA539415  Silene antirrhina Fred M. Roberts, Carol A. Roberts 1988-6-9 4088 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Peak, south slope. 0.4km SW summit. 1518 Comment
  IRVC25469  Silene gallica Fred M. Roberts 1987-4-21 3778 Orange Aliso Creek, Aliso Creek Bike Trail, 3.0km ENE Moulton Peak, Aliso Viejo 73 Comment
  UCR102033  Silene gallica B. G. Pitzer 1997-3-25 3012 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  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
  RSA289  Silene laciniata subsp. major J. T. Howell 1927-7-28 512 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  RSA439886  Silene laciniata subsp. major M. B. Dunkle 1933-5-30 3571 Orange Carbon Canyon Comment
  RSA602114  Silene laciniata subsp. major Scott D. White 1997-5-6 5041 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 Comment
  RSA699745  Silene laciniata subsp. major Fred M. Roberts, David E. Bramlet 2003-5-15 5874 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 1.41km SSW Gato Gate and 0.35km NNW of SDG&E substation. 122 Comment
  UC1090415  Silene laciniata subsp. major Milo S. Baker 1958-5-17 13295 Orange Santa Ana Mts. Comment
  IRVC25338  Silene laciniata subsp. major Bernard N. Jaroslow 1989-5-29 B23 Orange Santiago Canyon, Morrow Trail out of Live Oak Canyon below truck trail; in patches along trail. Santa Ana Mountains Comment
  RSA473583  Silybum marianum M. B. Dunkle 1938-4-6 5372 Orange Santa Ana Canyon Comment
  RSA653177  Silybum marianum David Barrios 1991-5-8 32 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA734809  Silybum marianum A. C. Sanders, Fred M. Roberts 2008-5-6 35269 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  CAS-BOT-BC75038  Sisymbrium altissimum John Thomas Howell 1927-7-24 2821 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  RSA752717  Sisymbrium altissimum Fred M. Roberts, Sandra Leatherman, Jennifer S. Pareti 2009-4-14 7153 Orange Dana Point Headlands: Dana Strand Beach and slopes above beach, 0.8 km WNW Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  RSA4792  Sisymbrium irio James Snow s.n. Orange The Bryant Ranch, near Long Beach. Station #2, Plant #4. Comment
  RSA366973  Sisyrinchium bellum H. L. Bauer 1929-4-20 s.n. Orange Trabuco Canon. Comment
  RSA731989  Sisyrinchium bellum A. C. Sanders, Fred M. Roberts 2008-4-8 34766 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd 457 Comment
  POM201716  Solanum americanum L. M. Booth 1932-6-28 1213 Orange Bolsas Marsh. Comment
  RSA800665  Solanum americanum Justin M. Wood 2010-9-29 2745 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  UCR154353  Solanum americanum Mark A. Elvin 2004-5-2 3415 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA647960  Solanum douglasii Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-1 7 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  RSA743382  Solanum douglasii Fred M. Roberts 2008-5-27 7001 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  SD143700  Solanum douglasii Scott D. White 1997-3-28 4828 Orange Above Modjeska Canyon: proposed water tank site 427 Comment
  UCD126941  Solanum douglasii A. C. Sanders 1990-10-6 10198 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1. 1 Comment
  UCR207564  Solanum douglasii O. F. Clarke 2004-3-22 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  UCR221897  Solanum douglasii Dick Newell, Don Millar 2010-10-5 41 Orange South Coast, city of Irvine, on Portola Pkwy. 1/4 mile east of Orchard Hills Rd. at Irvine Ranch Conservancy headquarters 95 Comment
  RSA12658  Solanum elaeagnifolium Carl B. Wolf 1934-7-13 6038 Orange Santa Fe. R.R. embankment, 0.5 mi. west of ATwood. 91 Comment
  UCR44897  Solanum nigrum B. G. Pitzer, L. F. LaPre 1986-10-20 317 Orange City of Irvine, Drainage channel near intersection of Irvine Blvd. and Sand Canyon Avenue. 91 Comment
  POM201712  Solanum physalifolium var. nitidibaccatum L. M. Booth 1932-7-30 1344 Orange Santa Ana River Comment
  CAS-BOT-BC156710  Solanum umbelliferum C. B. Wolf 1931-3-6 1862 Orange 1 mi. no. of base of Modjeska Grade, west slope of Santa Ana Mts. 304 Comment
  POM212279  Solanum umbelliferum Carl B. Wolf 1931-3-6 1850 Orange 0.5 mi. below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 610 Comment
  RSA507482  Solanum umbelliferum Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment
  RSA598959  Solanum umbelliferum Scott D. White 1997-3-28 4831 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  RSA638973  Solanum umbelliferum Valerie L. Soza, LeRoy Gross 1999-6-7 494 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  UC484257  Solanum umbelliferum C. B. Wolf 1931-3-6 1850 Orange 1/2 mi below Trabuco Camp Ground (w slope Santa Ana Mountains, Trabuco Canyon); Santa Ana Mountains, Trabuco Canyon 609 Comment
  RSA650147  Solanum umbelliferum Shlomo Gat 1959-5-9 31 Orange near La Vida Comment
  UCSB18243  Solanum umbelliferum Daniel, Dick 1964-3-28 Orange Silverado Canyon Road, 5.1 miles NW from junction with Santiago Canyon Road, approximately 10 miles W of Irvine Lake, 17 miles by air E of Orange 365 Comment
  UCR97816  Solanum xanti Scott D. White 1997-3-28 4831 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  RSA735963  Solanum xanti var. xanti Scott D. White, Justin M. Wood 2008-4-24 11911 Orange Chino Hills: SCE powerline corridor, SE of Carbon Canyon Rd and N of Chino Hills State Park. 366 Comment
  RSA220957  Solidago californica E. W. Lathrop 1966-3-23 6096 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  CAS-BOT-BC364909  Solidago velutina subsp. californica Mrs. R. W. Summers 1887-8-1 s.n. Orange Attwoods [Atwood ?] Hill Comment
  CAS-BOT-BC365978  Sonchus arvensis E. Johnson 1932-7-1 s.n. Orange Unspecified Comment
  POM201741  Sonchus oleraceus L. M. Booth 1932-5-12 1012 Orange Newport Bay. Comment
  UCD136209  Sonchus oleraceus Ira L. Wiggins 1965-11-6 20334 Orange west side of Atwood. Comment
  RSA750063  Sorghum bicolor A. C. Sanders, Fred M. Roberts 2008-9-18 36066 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 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
  UCD92658  Sorghum halepense Beecher Crampton 1965-10-27 7582 Orange 2 miles E of Irvine, Irvine Blvd. Comment
  CDA780  Sparganium eurycarpum subsp. eurycarpum E. Dudley 1948-7-22 Orange Santa Ana, Flood Control Ditch. 0 Comment
  POM122350  Spartina foliosa Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  POM262908  Spartina foliosa J. C. Roos 1937-9-1 427 Orange Seal Beach. Comment
  CSUSB1332  Spartium junceum Cesareo Perez 1971-5-4 Orange South Mesa Drive and Lemon Street in Villa Park Comment
  HSC15089  Spartium junceum S. M. Clapp 1966-4-3 4 Orange Union Oil Prop., just S of Imperial Hwy. and E of Associated Rd. 61 Comment
  IRVC2455  Spartium junceum M. McCartin 1965-5-2 s.n. Orange San Juan Capistrano. Southern Coastal Comment
  RSA652717  Spartium junceum Jack D. Ingwersen 1962-5-2 s.n. Orange Anaheim Comment
  RSA658212  Spartium junceum T. A. Daubert 1991-5-19 647 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  SEINET10487735  Spartium junceum Charlene A. Bennett 1976-7-22 Bennett 442 Orange Cultivated and native plants collected around the san clemente beach area. 3 Comment
  SEINET10487736  Spartium junceum David B. Dunn 1971-8-13 Dunn 18128 Orange Cultivated plants vicinity of laguna beach so called scotch broom. Comment
  IRVC368  Spergula arvensis D. Ibbetson 1965-4-16 Orange Newport Beach Comment
  RSA801710  Spergula arvensis D. M. McF 1953-4-3 s.n. Orange Irvine Coast G.C. Corona Del Mar. Comment
  RSA0097080  Spergularia B. Pitzer 1996-4-30 2784 Orange Upper Newport Bay: California Department Fish & Game Ecological Reserve, off (W of) Jamboree Road. 6 Comment
  UCR181661  Spergularia B. G. Pitzer 1996-4-30 2784 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  CAS-BOT-BC390309  Spergularia macrotheca var. macrotheca Scott D. White 1997-3-26 4821 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
  UCR103161  Spergularia macrotheca var. macrotheca Scott D. White 1997-3-26 4821 Orange Univ. of Calif. Irvine Campus, east of main campus at site of proposed student recreation center, east of main campus, between California Avenue and Culver Drive. 40 Comment
  UCR12123  Spergularia marina Art Whistler 1966-5-5 s.n. Orange South Coast, Laguna Beach 'near Camp Pendleton Comment
  RSA0098538  Spergularia marina L. M. Booth 1932-5-12 1010 Orange Newport Beach. Comment
  RSA478077  Spergularia rubra Albert J. Perkins 1922-5-27 s.n. Orange Dr. Whi...(?) garden Comment
  HSC92517  Spergularia salina D. Atwood 1993-3-29 17734 Orange Huntington Beach along Beach Blvd., 0.5 mi. N of the beach Comment
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Jul 8 2010
  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
  UCD63552  Sphaeralcea ambigua var. rosacea D. Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel. Dana Point Highlands. Pacific Island Drive. 70 Comment
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Mar 23 2010
  RSA698116  Sphaeralcea fasciculata R. H. McArthur 1934-4-21 s.n. Orange Gulch W. of Irvine Park. Comment
  IRVC26743  Spiloxene ovata Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3161 Orange UCI Arboretum Southern Coastal 15 Comment
  CAS-BOT-BC236657  Sporobolus airoides Carl B. Wolf 1932-7-7 3848 Orange Bryant Ranch, Bixby Ave, edge of field, 7/10 mi. W. of Hansen Road, 2/10 mi. W. of S.E. corner of N.E. 40 of N.W. 160 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
  RSA542483  Stachys rigida subsp. quercetorum Fred M. Roberts, R. E. Riefner 1988-7-19 4115 Orange Santa Ana Mountains; Maple Springs Truck Trail, Upper Silverado Canyon, 1.9km N Modjeska Peak. 1128 Comment
  RSA798185  Stachys rigida subsp. quercetorum Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49583 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  POM263244  Stachys rigida subsp. rigida J. C. Roos 1937-5-10 614 Orange East of San Juan Capistrano. Comment
  SEINET9355912  Stachys stebbinsii Unknown 2011-9-27 39902 Orange Orange Co., CA Comment
  UCR231347  Stachys stebbinsii A. C. Sanders, Kent Beaman 2011-9-27 39902 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347 deg. ) of Santiago Peak 903 Comment
  CAS-BOT-BC393820  Stellaria media Ira L. Wiggins 1965-12-5 20368 Orange 2 mi. E of Atwood, on N side of Orangethorpe Ave. Comment
  CAS-BOT-BC227698  Stephanomeria A. C. Sanders; Fred M. Roberts 2008-7-16 35827 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  JEPS36878  Stephanomeria diegensis L. M. Booth 1933-10-18 Orange Newport Comment
  RSA753082  Stephanomeria exigua subsp. deanei A. C. Sanders, Fred M. Roberts 2008-9-18 36083 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  CAS-BOT-BC375867  Stephanomeria virgata H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  UCR191359  Stipa coronata A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34645 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
  SD251164  Stipa coronata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49617 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station. Dry, rocky bluffs above San Juan Creek Comment
  UCR106284  Stipa lepida B. G. Pitzer, M. Georgiady 1997-4-5 3071 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  UCR26655  Stipa lepida E. W. Lathrop 1966-4-18 6179 Orange Santa Ana Mtns., 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  RSA6315  Stuckenia pectinata L. T. Street, Williams 1919-5-4 2690 Orange Laguna Lakes. [now Big Laguna Lake, San Diego Co.] Comment
  UCR158027  Stylocline gnaphaloides Adrian Wolf 1998-5-15 293 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  UCR192110  Stylocline gnaphaloides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35311 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UC1123319  Styrax officinalis var. redivivus A. Lewis Apr 1934 380 Orange 2 mi ne Santiago Coal Mine; Cleveland National Forest, Corona Quad. Comment
  RSA725580  Styrax redivivus Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6534 Orange Along dirt road on ridge between Fremont and Black Star Cyns., 5.2km ENE Irvine Lake Spillway and 1.7km W Hidden Ranch. 739 Comment
  SD122676  Styrax redivivus Reid Moran 1979-5-9 27196 Orange north slope San Juan Canyon, Santa Ana Mountains 380 Comment
  UC971742  Suaeda calceoliformis L. M. Booth 1932-7-4 1251 Orange Newport Bay Comment
  RSA12653  Suaeda esteroa C. B. Wolf 1934-7-29 6043 Orange Newport Bay Comment
  RSA70016  Suaeda esteroa F. W. Peirson 1924-8-29 5082 Orange 2.5 miles from Balboa on road inland along creek. Comment
  RSA758777  Suaeda esteroa Anstruther Davidson 1907-9-1 1778 Orange Newport Comment
  UCSB58942  Suaeda esteroa Sanders, A. 1990-10-6 Orange Newport Bay, North Star County Beach area; on the SW end of the bay; ca. 2 km. inland of Hwy. 1 3 Comment
  JEPS59879  Suaeda moquinii Lawrence M. Booth 1932-7-4 1247 Orange Newport Bay Comment
  LA204738  Suaeda taxifolia Norman C. Cooper; 1942-11-9 883 Orange Balboa Comment
  RSA531318  Suaeda taxifolia A. C. Sanders 1990-10-6 10180 Orange Newport Bay, Westcliff Park area on the SW end of the bay, 1km inland of Hwy 1. 1 Comment
  RSA768500  Suaeda taxifolia Justin M. Wood 2009-12-1 1391 Orange Santa Ana River: marsh just upstream of Pacific Coast Highway. 0 Comment
  SEINET187091  Suaeda taxifolia Allan C. Keller 1937-11-26 Orange One mile south of Huntington Beach on U.S. Highway Alternate 101. Comment
  UC284809  Suaeda taxifolia P. A. Munz 1923-4-1 7320 Orange 2 mi nw Laguna (Laguna Beach); Laguna Beach Comment
  UCD99537  Suaeda taxifolia Ronni Stachelek; Bob Anderson, Frances Schropshire 1995-3-23 51 Orange Newport Beach, Upper Newport Bay, Back Bay Dr., ca. 100 m. N of San Joaquin Dr. Comment
  UCSB48379  Suaeda taxifolia Roberts, Fred 1982-4-20 Orange Anaheim Bay: Calif. Rte. 1 at southern margin of Seal Beach Naval Weapons Station; 1.7 km. SE McGaugh School; 1.1 km. W Hog Island Comment