Search Results — 2000 specimen records retrieved (1636 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
  RSA585055  Abronia maritima D. Atwood 1993-3-28 17715 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. 0 Comment
  SD41424  Abronia maritima Edith A. Purer 1932-8-31 4880 Orange Sand dunes along Route 101. Comment
  UCR228888  Abronia maritima Dick Newell, Don Millar 2011-7-29 216 Orange South Coast, Bolsa Chica Ecological Reserve, 1.3 miles southeast of Pacific Coast Hwy at Warner Ave. 5 Comment
  CAS-BOT-BC229406  Abronia umbellata Marcus E. Jones 1924-8-26 s.n. Orange Newport Comment
  RSA640716  Abronia umbellata Louis C. Wheeler 1931-8-17 s.n. Orange Balboa. Comment
  UCR207193  Abronia umbellata O. F. Clarke 2002-5-22 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 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
  RSA0065574  Acacia decurrens var. dealbata Louis R. Klins 1949-2-12 s.n. Orange 1928 W. 17th Street, Santa Ana. 60 Comment
  UCSB57544  Acacia pycnantha Roberts, Fred 1984-6-2 Orange Capistrano Beach: El Camino Real, 0.1 km. SE Beach Rd., UTM 3701800mN, 438025mE 5 Comment
  RSA767264  Acacia redolens Scott D. White, Michael Honer 2004-5-17 10391 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  CAS-BOT-BC333257  Acer macrophyllum B. D. Stark 1931-6-10 2246 Orange Claymine Can, N end of Santa Ana Mts. 243 Comment
  IRVC23426  Acer macrophyllum Fred M. Roberts 1985-7-26 2087 Orange Santa Ana Mtns: Upper trabuco Cyn, 1.3 km NE Los Pinos Pk. Peninsular Ranges 1225 Comment
  IRVC8  Acer macrophyllum T. Price 1965-4-17 s.n. Orange Santa Ana Mtns: Silverao Cyn. Peninsular Ranges Comment
Read comments
Nov 15 2013
  JEPS42668  Acer macrophyllum John Thomas Howell 1927-7-26 2839 Orange Claymine Canyon Santa Ana Mts., Claymine Canyon 304 Comment
  RSA699744  Achillea millefolium var. californica Fred M. Roberts, David Bramlet 2003-5-15 5875 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
  RSA791875  Achnatherum coronatum R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49617 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station Comment
  SD45472  Acmispon americanus Robert L. Dressler 1949-5-8 809 Orange 16 miles northeast of San Juan Capistrano. 310 Comment
  SD152854  Acmispon wrangelianus Steve Boyd, Tim Ross 1992-5-20 7485 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area, western edge of the wilderness in Lucas Canyon at the Lucas Canyon Trail crossing, on hard-packed soil along trail, north side of creek just downstream from crossing 320 Comment
  IRVC20809  Acourtia microcephala Fred M. Roberts 1982-6-30 711 Orange Pacific Island Drive, 2.0km SE Aliso Peak; 1.3km E Bench Mark 133, Laguna Niguel 130 Comment
  SD212462  Acourtia microcephala A. C. Sanders, Fred M. Roberts and Michelle Balk 2006-7-20 33021 Orange Santa Ana Mountains; San Juan Canyon from Lower San Juan Picnic Area to ca. 1.0 mile downstream, parallel to Highway 74 and near Riverside County line. 366 Comment
  UCSB71570  Acourtia microcephala Sanders, A.; Roberts, Fred 2008-7-3 Orange Peninsular Range; Santa Ana Mtns.; Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor (Black Star Canyon 7.5' Q.) 415 Comment
  CAS-BOT-BC133135  Adenostoma fasciculatum John Thomas Howell 1927-7-29 2873 Orange On N. side of Santa Ana [Canon] Canyon 243 Comment
  RSA598917  Adenostoma fasciculatum var. fasciculatum Scott D. White 1997-3-28 4848 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  RSA80653  Adenostoma fasciculatum var. fasciculatum Philip A. Munz, E. K. Balls 1952-8-19 17925 Orange West of Ortega Summit on road from Elsinore to Capistrano 793 Comment
  IRVC3114  Adiantum jordanii Diane Ibbetson 1965-3-12 HS 0577 Orange Corona Del Mar Southern Coastal Comment
  IRVC3117  Adiantum raddianum Pat Rolfe 1965-4-20 HS 0581 Orange Newport Beach: Back Bay. Southern coastal Comment
  RSA543967  Agoseris grandiflora var. grandiflora Steve Boyd, Orlando Mistretta 1991-5-9 6198 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA0013960  Agrostis pallens Fred M. Roberts 2008-5-14 6968 Orange Lomas de Santiago: Loma Ridge, upper Bee Flat Cyn. below Loma Ridge Rd., 1.3 km N Bee Peak and 5.4 km NW Bolero Lookout, Irvine Ranch Conservancy. 377 Comment
  UCR193037  Agrostis viridis A. C. Sanders, Fred M. Roberts 2008-6-17 35494 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  CAS-BOT-BC435117  Aizoaceae Robert F. Thorne 1975-4-6 45587 Orange Head of Newport Bay 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
  UCR215292  Allium haematochiton Fred M. Roberts, D. E. Bramlet 2008-5-13 6952 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  IRVC26677  Allium haematochiton Mark A. Elvin 2004-4-4 3213 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA176731  Allium haematochiton D. E. Breedlove 1962-3-9 1788 Orange 12.3 miles east of San Juan Capistrano on State [Highway] 74 244 Comment
  UCR150911  Allium monticola Valerie Soza, LeRoy Gross 1999-6-10 509 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1524 Comment
  CAS-BOT-BC474098  Allium praecox Munz; L. Street; Williams 1919-5-3 2635 Orange Santa Ana River Canyon Comment
  POM180165  Allium praecox W. D. Baker, Joseph A. Ewan 1930-3-22 s.n. Orange Brea Canyon, one mile above Brea. Comment
  CAS-BOT-BC402181  Allophyllum glutinosum R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49604 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  RSA638970  Allophyllum glutinosum Valerie L. Soza, LeRoy Gross 1999-6-8 497 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA0058055  Allophyllum glutinosum Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49604 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  RSA562736  Allophyllum glutinosum Steve Boyd, T. S. Ross 1992-5-20 7452 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09), 305 Comment
  SEINET2444446  Allophyllum glutinosum Steve Boyd, Tim Ross 1992-5-20 7452 Orange Southern Santa Ana Mountains. San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09). 305 Comment
  RSA5391  Alnus rhombifolia B. D. Stark 1932-12-30 1717 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 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
  UCSB47987  Alnus rhombifolia Roberts, Jr., Fred 1980-6-25 Orange Santa Ana Mtns., San Juan Canyon below Calif. Rte. 74, 2.4 km. ENE San Juan Guard Station; 0.3 km. WSW BM 1100 290 Comment
  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
  RSA731751  Amaranthus albus Fred M. Roberts 2007-11-9 6653 Orange San Juan Canyon along San Juan Creek, about 0.6 km E San Diego FWY. 24 Comment
  UCR140882  Amaranthus albus Robert DeRuff 1987-8-22 299 Orange Southern Coast, Newport Back Bay, Santa Ana Heights area 18 Comment
  UCR193368  Amaranthus albus A. C. Sanders, T. B. Salvato 2008-5-13 35346 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
  JEPS54303  Amaranthus blitoides Lawrence M. Booth 1932-7-25 1309 Orange Santa Ana river, near coast Santa Ana River Comment
  RSA719405  Amaranthus blitoides Fred M. Roberts, Robert L. Allen 2006-10-8 6430 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
  UC536930  Amaranthus blitoides Lawrence M. Booth 1932-5-12 1030 Orange Newport Bay Comment
  RSA725586  Amaranthus deflexus Fred M. Roberts 2007-8-6 6699 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
  UCD97455  Amaranthus deflexus A. C. Sanders 1999-10-31 23225 Orange South Coast: Mission San Juan Capistrano, near intersection of Ortega Highway (Hwy 74) and El Camino Real. Near confluence of San Juan Creek and Arroyo Trabuco. 61 Comment
  RSA592066  Amaranthus deflexus R. E. Riefner 1995-7-27 95 -318 Orange S bluff area of San Clemente Beach. Comment
  UCSB37368  Amaranthus hybridus Roos, Alfred 1937-12-2 Orange Santa Ana Comment
  UCR207561  Amaranthus palmeri O. F. Clarke 2004-5-29 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  UC537271  Amaranthus powellii Lawrence M. Booth 1932-7-21 1295 Orange Anaheim Marsh Comment
  UCSB48239  Amaranthus powellii Roberts, Fred 1981-7-8 Orange Rancho Mission Viejo; Calif. Rte. 74, 10.5 km. by road, ENE San Juan Capistrano 104 Comment
  RSA562754  Amaranthus retroflexus Steve Boyd, Timothy S. Ross 1992-5-19 7430 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail in Aliso Canyon. 335 Comment
  CAS-BOT-BC13494  Amblyopappus pusillus Louis C. Wheeler 1932-6-25 859 Orange Newport Bay 3 Comment
  IRVC8602  Amblyopappus pusillus J. B. Anderson 1966-4-16 577 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  RSA416883  Amblyopappus pusillus L. C. Wheeler 1932-6-25 859 Orange Newport Bay. 1 Comment
  RSA743511  Amblyopappus pusillus Fred M. Roberts 2008-4-9 6862 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 45 Comment
  UCR223966  Amblyopappus pusillus Fred M. Roberts 2008-4-9 6862 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Outlook 2, 0.7 km west of Marine Institute, Dana Point Harbor 52 Comment
  SEINET6738510 Image available Amblyopappus pusillus L. C. Wheeler 1932-6-25 859 Orange Newport Bay 1 Comment
  IRVC29760  Ambrosia chamissonis Barry S. Nerhus, Mark A. Elvin 2006-11-4 13 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  UCSB48034  Ambrosia chamissonis 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
  POM202607  Ambrosia psilostachya L. M. Booth 1932-8-5 1355 Orange Bolsas Marsh. Comment
  RSA33797  Ambrosia psilostachya N. C. Cooper 1942-11-9 882 Orange Balboa. Comment
  RSA696744  Ambrosia psilostachya Anonymous 1934-09 s.n. Orange [Unspecified] Comment
  RSA751522  Ambrosia psilostachya A. C. Sanders, Fred M. Roberts 2008-8-7 35990 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  UCSB52398  Ambrosia psilostachya Roberts, Fred 1982-10-4 Orange Laguna Niguel; Niguel Hill, 2.7 km. NNE Aliso Peak; 1.5 km. WNW Alicia Fire Station 160 Comment
Read comments
Jan 25 2020
  RSA0031761  Ambrosia psilostachya R. F. Thorne 1977-11-21 50813 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  CDA43036  Ambrosia trifida David Bolton 2014-6-16 PDR# 300 P06039948 Orange Delphia Avenue, Brea. 0 Comment
  POM201611  Ammi visnaga L. M. Booth 1932-7-18 1268 Orange Santa Ana River, 1 mile from Ocean. Comment
  CAS-BOT-BC180617  Amorpha californica var. californica A. M. White 1974-6-1 74 -671 Orange N. of Silverado Canyon, ~20 mi. E. of Santa Ana 1005 Comment
  CAS-BOT-BC177255  Amorpha fruticosa B. D. Stark 1931-10-17 2463 Orange Rancho Santa Ana, Santa Ana Canyon 137 Comment
  RSA703704  Amorpha fruticosa Fred M. Roberts, David E. Bramlet 2004-7-30 6090 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy Cristianitos Canyon, along Cristianitos Ck., 0.93 km SSW Gato Gate and 0.23 km W Cristianitos Road. 76 Comment
  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
  HSC3516  Amsinckia intermedia C. L. Hitchcock, C. V. Muhlick 1964-3-17 23064 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  HSC3522  Amsinckia intermedia J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  JEPS61147  Amsinckia intermedia Alice King 1908-1 Orange Anaheim plain Anaheim Comment
  POM64006  Amsinckia intermedia C. F. Baker 1903-4-1 s.n. Orange Anaheim . Comment
  RSA0089447  Amsinckia intermedia Ken Greby 1985-4-18 17 Orange Alongside Laguna Canyon Rd. approx. 1.5 km. NE from El Toro Rd. 46 Comment
  UCSB15050  Amsinckia intermedia Breedlove, Dennis 1962-3-9 Orange 6.4 miles east of San Juan Capistrano on State 74 121 Comment
  UCSB48101  Amsinckia intermedia Fritzke, Sue; Roberts, Jr., Fred 1982-4-3 Orange Rancho Mission Viejo: Calif. 74, 15.0 km by road NE San Juan Capistrano; 4.7 km SW San Juan Guard Station 160 Comment
  IRVC22198  Amsinckia menziesii var. intermedia Fred M. Roberts 1985-4-8 1636 Orange San Joaquin Hills, Turtle Rock area, hill 1.1km SE French Hill, Irvine 196 Comment
  IRVC25567  Amsinckia menziesii var. intermedia Fred M. Roberts 1989-3-17 4202 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  IRVC228  Amsinckia menziesii var. intermedia I. L. Wiggins 1966-3-4 20495 Orange Santa Ana Canyon], Riverside Fwy, 4.5mi E Newport Fwy exit; in full sun, [annual grassland]. Anaheim Comment
  UCR4089  Anagallis arvensis Carole Sims 1965-3-28 s.n. Orange South Coastal Plains, Salt Creek Road off Pacific Coast Highway, between South Laguna and Dana Point 18 Comment
  UCR96890  Anagallis arvensis Scott D. White 1993-4-28 1288 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  POM201808  Anagallis arvensis L. M. Booth 1932-5-12 s.n. Orange Newport Bay. Comment
  RSA602640  Anagallis arvensis B. Pitzer 1996-4-30 2794 Orange San Joaquin Hills Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy). 15 Comment
  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
  RSA659985  Anagallis arvensis Steve Teh 1994-5-20 26 Orange Modjeska Grade rd. Fire road trail head. Comment
  RSA651285  Anemopsis californica Marcy Keys 1981-5-24 81 Orange 3 miles inland from Laguna Beach on Laguna Canyon Rd. Comment
  SD41483  Anemopsis californica Edith A. Purer 1932-8-31 4873 Orange Orange County near Route #101, moist depression in sand Comment
  UCR159783  Anemopsis californica Peter A. Bowler 2003-4-20 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; in marsh at north edge of marsh beside UCI Arboretum 3 Comment
  CAS-BOT-BC400330  Anemopsis californica Carl B. Wolf 1932-6-28 3803 Orange Bryant Ranch, edge of field and road (Bixby Ave.) 750 ft. E. of S.W. corner of N.W.40 of N.W.160 of Sect. 33 T4S. R11W. Comment
  IRVC17996  Anthemis cotula A. B. McGee 1970-9-9 Orange San Diego Creek Channel adjacent to San Joaquin Freshwater Marsh. Irvine Comment
  RSA732240  Antirrhinum coulterianum A. C. Sanders, Fred M. Roberts 2008-4-22 35050 Orange Lomas de Santiago, slopes of south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado. 457 Comment
  UC1012126  Antirrhinum coulterianum F. W. Pennell and Carl Epling 1940-4-21 25147 Orange 5 mi e San Juan Capistrano (Route 74) 60 Comment
  UCR193365  Antirrhinum coulterianum A. C. Sanders, Mitch Provance 2008-5-20 35426 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  UCR209383  Antirrhinum kelloggii Fred M. Roberts, Linda Farley 2008-3-28 6828 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
  UC1929691  Antirrhinum multiflorum R. E. Riefner Jr. 2008-6-3 08 -139 Orange Irvine Ranch Reserve, North Irvine Ranch, East Fork cliffs at upper Fremont Canyon along Black Star SCE Rd. Comment
  UCR177863  Aphanisma blitoides Eliza L. Maher 2006-5-2 s.n. Orange South Coast, Dana Point Headlands, CNLM preserve 46 Comment
  RSA0057935  Apiastrum angustifolium Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49666 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  IRVC17821  Apium graveolens R. Hobson 1965-4-10 Orange Santa Ana Heights, 2431 Mesa Dr. Southern Coastal Comment
  RSA6027  Apocynum cannabinum B. D. Stark 1932-7-15 3876 Orange Ranch Santa Ana River bottom below the ranch houses. 1220 Comment
  IRVC20014  Apocynum cannabinum var. glaberrimum Gordon A. Marsh, K. G. Marsh 1981-7-26 Orange Cleveland National Forest; Lion Canyon, near mouth. Santa Ana Mountains Comment
  CAS-BOT-BC128676  Arbutus menziesii Carl B. Wolf 1933-11-8 2008 Orange Trabuco Canyon on south wall opposite the Trabuco Truck Trail, Santa Ana Mts. 914 Comment
  UC527329  Arbutus menziesii Carl B. Wolf 1933-11-8 Orange Trabuco Canyon on s wall opposite Trabuco Truck Trail; Santa Ana Mountains, Trabuco Canyon 914 Comment
  LA42394  Arctostaphylos glandulosa W. Pequegnat; 1938-3-19 sn Orange Santa Ana Mountains, Holy Jim Trail 1219 Comment
  RSA629342  Arctostaphylos glandulosa Jon E. Keeley 1992-6-12 15522 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  RSA658640  Arctostaphylos glandulosa R. W. Hufstader 1971-3-29 64 Orange Collected in Harding Canyon off Harding Cyn. Rd. ca. 5 miles from Tucker Sac. Cleveland Nat. Forest. 762 Comment
  CAS-BOT-BC23112  Arctostaphylos glandulosa subsp. glandulosa P. A. Munz; E. K. Balls 1952-8-19 17924 Orange Summit of Ortega hwy, Santa Ana Mts. 822 Comment
  OBI30165  Arctostaphylos glandulosa subsp. glandulosa John Hanger 1971-3-29 3 Tu Orange 8 mi out Harding Canyon road from Tucker Wildlife Sanct. 1402 Comment
  RSA626919  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15508 Orange Hotshot Camp, north of Ortega Highway (Highway 74). 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
  RSA545  Arctostaphylos glandulosa subsp. zacaensis J. T. Howell 1927-6-26 222 Orange Claymine Canyon, near Sierra Peak. 457 Comment
  RSA659895  Arenaria douglasii Karl Price 1988-5-21 47 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  RSA652146  Argemone munita J. Bruce Smiley 1940-5-7 s.n. Orange Santa Ana Wash. 457 Comment
Read comments
Mar 10 2013
  RSA38  Aristida adscensionis var. modesta J. T. Howell 1928-2-26 856 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA682760  Aristida purpurea Scott D. White, Amanda Duchardt 2003-3-27 8857 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 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
  RSA704071  Aristida purpurea var. parishii D. E. Bramlet, Fred M. Roberts 2003-3-13 3336 Orange Donna O'Neill Reserve. North east ridge line 762m W of Cristianitos Rd., and 1.15 km N of the E-W Access road., 11S 04 46 955E, 37 05 838N) 198 Comment
  UCR130489  Aristida purpurea var. parishii R. E. Riefner Jr. 2000-7-7 00- 629 Orange Santa Ana Mtns., North Ranch Policy Plan Area, on ridgeline overlooking upper west fork of Fremont Canyon; east of Main Divide Road and SE from Windy Ridge cypress forest 348 Comment
  RSA588885  Aristida purpurea var. purpurea Fred M. Roberts, D. Bontrager 1990-6-5 4669 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
  UCR209341  Aristida ternipes var. hamulosa Fred M. Roberts 2008-4-22 7167 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, along Haul Road near asphalt plant, 2.2 km east-northeast of Rattlesnake Reservoir Dam and 2.2 km west-northwest of Bee Peak, Irvine Ranch Conservancy 188 Comment
  UC1234761  Arnica discoidea Peter H. Raven 1962-5-18 17751 Orange 4.8 mi above gate on Silverado Canyon Truck Trail Silverado Canyon Truck Trail; Santa Ana Mountains 1066 Comment
  SBBG98322  Artemisia biennis L. M. Booth 1932-7-4 1250 Orange Newport Bay Comment
  CAS-BOT-BC90186  Artemisia californica Marcus E. Jones 1930-3-3 26497 Orange Santa Ana Mountains Comment
  CDA22506  Artemisia californica E. A. Hook, C. Tran 2006-2-4 1 Orange Southern Coastal; San Joaquin Marsh; northwest bluff edge. Comment
  IRVC16742  Artemisia californica Gordon A. Marsh, A. B. McGee 1981-5-22 Orange UCI Ecological Preserve, hill 4. Irvine 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
  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
  UCSB52400  Artemisia californica Roberts, Fred 1982-9-15 Orange Santa Ana Mtns.; San Juan Trail, 1.1 km. SE Blue Jay Campground; 2.5 km. SSE Los Pinos Peak 997 Comment
Read comments
Jan 25 2020
  RSA746040  Artemisia californica Elizabeth H. Hook, Caroline Tran 2006-2-4 1 Orange Southern Coastal: San Joaquin Marsh; NW bluff edge 5 Comment
  RSA751431  Artemisia douglasiana A. C. Sanders, Fred M. Roberts 2008-7-3 35689 Orange Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir. 275 Comment
  UCR193794  Artemisia douglasiana A. C. Sanders, Fred M. Roberts 2008-7-3 35689 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  HSC79305  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 61 Comment
  UC971735  Artemisia dracunculus L. M. Booth 1932-7-4 1242 Orange Newport Bay 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
  IRVC412  Arthrocnemum subterminale E. Cowper 1965-3-1 Orange [Newport] Back Bay. Newport Beach Comment
  CDA31508  Arundo donax D. G. Kelch 2006-12-9 06 .559-B Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA695984  Asclepias californica Keith E. Hoffmaster 1936-5-3 s.n. Orange Holy Jim Canyon. Comment
  POM201840  Asclepias fascicularis L. M. Booth 1932-7-21 1291 Orange Anaheim Creek Comment
  IRVC27930  Asclepias fruticosa A. C. Sanders, Mark A. Elvin 2003-10-12 27328 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
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Aug 31 2020
  UCR130348  Asclepias physocarpa A. C. Sanders, Mark A. Elvin 2003-10-12 27328 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  SEINET7114906  Asclepias physocarpa M. B. Sady 1992-6-22 s.n. Orange U.C. Irvine Arboretum Comment
  RSA743466  Asparagus aethiopicus Fred M. Roberts, Carol A. Roberts 2008-9-28 7118 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UCD138664  Asparagus asparagoides B. Pitzer 1996-4-30 2787 Orange Upper Newport Bay: Calif. Dept. Fish and Game Ecological Reserve, off (W of) Jamboree Rd. 6 Comment
  IRVC12865  Asparagus plumosus B. T. Gittins 1964-4-15 390 Orange Costa Mesa, 1613 Sandalwood. Comment
  POM9822  Aspidotis californica P. A. Munz, R. D. Harwood 1920-4-24 3743 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA0022438  Aspidotis californica R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49797 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA793262  Aster exilis R. F. Thorne 1984-1 s.n. Orange Newport Back Bay. Comment
  UCR210368  Aster subulatus T. B. Salvato, Billy Deane 2006-10-16 1940 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  SEINET946267  Asteraceae C. B. Wolf 1934-1 6262 Orange South end of town of San Clemente 15 Comment
  RSA0089238  Astragalus didymocarpus David E. Bramlet, J. E. Harrison 2008-4-3 4157 Orange Peninsular Range; Santa Ana Mountains: South Bee Canyon, Bowerman landfill site, 1.2 km south of the Bee Canyon access road, and 122 m west of the active landfill. 224 Comment
  UCR266298  Astragalus didymocarpus D. E. Bramlet, J. E. Harrison 2008-4-3 4154 Orange Peninsular Range; Santa Ana Mountains, South Bee Canyon, Bowerman landfill site, 1.2 km south of the Bee Canyon access road, and 122 m west of the active landfill 224 Comment
  UC1929556  Astragalus didymocarpus var. didymocarpus Scott D. White, Justin Wood 2008-4-21 11904 Orange Chino Hills: Chino Hill State Park, N of 91 freeway, above Yorba Linda. Comment
  IRVC19366  Astragalus didymocarpus var. didymocarpus R. L. Allen 1975-4-20 Orange San Juan Creek bed, 1.4km N La Novia Bridge, 15km W waters edge. San Juan Capistrano Comment
  RSA220982  Astragalus gambelianus E. W. Lathrop 1966-3-23 6102 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA733876  Astragalus gambelianus A. C. Sanders, Fred M. Roberts 2008-4-8 34748 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  SD152863  Astragalus gambelianus Steve Boyd, Tim Ross, etc 1992-5-20 7458 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness area. Western edge of the wilderness in Lucas Canyon along stream 299 Comment
  POM17799  Astragalus trichopodus var. lonchus P. A. Munz 1923-9-7 7770 Orange Mouth of Trabuco Canyon 305 Comment
  SEINET7796213  Astragalus trichopodus var. lonchus E. A. Bourdo 1975-7-25 s.n. Orange Crest of hills above Niguel Beach Comment
  RSA737374  Atriplex R. E. Riefner 2006-10-19 06 -546 Orange City of Lake Forest, 0.5 mile N of Alton Pwy on E side of SR 241. 230 Comment
  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
  RSA737243  Atriplex amnicola R. E. Riefner 2006-4-17 06 -155 Orange Upper Newport Bay, near Bayview Wy and Bayview Pl. 7 Comment
  POM17484  Atriplex californica P. A. Munz 1923-4-1 6912 Orange Laguna Lakes. 61 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
  RSA624453  Atriplex canescens L. C. Wheeler 1933-10-21 2221 Orange Newport Bay. 3 Comment
  CAS-BOT-BC170196  Atriplex canescens subsp. canescens John Thomas Howell 1927-10-22 3162 Orange In hills on n. side of Santa Ana Canyon. 152 Comment
  UCR98213  Atriplex canescens subsp. canescens B. G. Pitzer 1996-4-30 2789 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  CAS-BOT-BC172632  Atriplex coulteri Louis C. Wheeler 1934-1-14 2363 Orange Aliso Creek near Laguna 76 Comment
  CAS-BOT-BC172634  Atriplex coulteri P. A. Munz 1918-5-5 2178 Orange Laguna Beach Comment
  RSA452402  Atriplex coulteri Anstruther Davidson 1908-5-1 1800 Orange Newport Bay Comment
  UCR133201  Atriplex coulteri D. E. Bramlet 1994-4-30 2377 Orange San Joaquin Hills, at the head of Bommer Canyon, approximately 30 m NE of the ridgeline truck trail, near peak 1033 296 Comment
  SBBG133612  Atriplex glauca R. E. Riefner Jr. 2005-12-31 05 -784 Orange ca. 0.5 mi N of Alton Pkwy on E side of SR-241; Lake Forest 230 Comment
  SEINET1908425  Atriplex glauca A. C. Sanders 2008-1 35139 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 1000 Comment
  RSA737232  Atriplex glauca R. E. Riefner 2005-12-13 05 -784 Orange City of Lake Forest, 0l5 miles N of Alton Pwy on E side of SR 241. 230 Comment
  RSA743558  Atriplex glauca R. E. Riefner 2006-2-1 6 -30 Orange City of Newport Beach, W side of MacArthur Blvd. near San Joaquin St. 75 Comment
  RSA478323  Atriplex leucophylla Gertrude Dunn 1931-8-9 s.n. Orange Between Huntington Beach and Santa Ana Comment
  UCR18895  Atriplex leucophylla John C. Roos 1949-10-1 4677 Orange South Coast, Doheny Beach 0 Comment
  UCR141335  Atriplex rhagodioides Robert DeRuff 1987-5-2 369 Orange Southern Coast, Newport Beach, Newport Back Bay, Big Canyon 8 Comment
  UCSC000220  Atriplex rosea Lawrence M. Booth 1932-7-4 1256 Orange Newport Lagoon Comment
  POM122998  Atriplex semibaccata Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  POM201919  Atriplex serenana L. M. Booth 1932-7-4 1255 Orange Newport Lagoon. Comment
  RSA5952  Atriplex serenana C. B. Wolf 1932-7-7 3849 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
  CAS-BOT-BC176755  Atriplex serenana var. serenana I. M. Johnston 1918-5-5 1930 Orange Laguna Beach Comment
  UCR158033  Atriplex suberecta Adrian Wolf 1998-7-1 408 Orange South Coast, Peters Canyon Channel, east of channel near Harvard Ballfield, between Harvard Ave. & creek, south of Warner Ave. to Barranca 15 Comment
  IRVC29085  Atriplex suberecta Tom Perring, Tracy Pinckard 1994-3-2 s.n. Orange Tustin, Marine Helicopter Station at the corner of Moffett Drive and Jamboree Rd. South Coast 11 Comment
  RSA453974  Atriplex watsonii Anstruther Davidson 1902-09 1767 Orange Newport Beach. Comment
  CAS-BOT-BC146059  Avena barbata Ira L. Wiggins 1966-3-16 20529 Orange Roadside near entrance to Firestone Boy Scouts Reservation. Comment
  RSA0089219  Avena fatua Fred M. Roberts 2014-4-21 7861 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  UCR102010  Avena fatua B. G. Pitzer 1997-3-25 3003 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR192634  Avena fatua A. C. Sanders, Fred M. Roberts 2008-3-25 34516 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA184189  Avena fatua I. L. Wiggins 1966-3-22 20555 Orange Silverado Canyon about 0.5 mile below entrance to Cleveland National Forest. Comment
  RSA650452  Avena fatua Phil Goodwin 1948-2-7 s.n. Orange Collected along the road side 3 miles south of Orange. Elv. 300 ft. 91 Comment
  RSA696691  Avena sativa Keith E. Hoffmaster 1927-5-5 s.n. Orange Santa Ana. Comment
  CHSC26009  Baccharis douglasii James Henrickson 1970-8-22 5292 Orange 2 1/2 miles NNW of Huntington Beach in dry northern part of Bolsa Chica Salt Marsh. 0 Comment
  RSA93212  Baccharis douglasii F. W. Peirson 1924-10-18 5244 Orange Spring hole, Wintersberg Comment
  IRVC25220  Baccharis emoryi Fred M. Roberts 1986-10-31 3197 Orange Seal Beach Naval Weapons Station: Anaheim Bay, vicinity of Hog Island. on berm along margin of upper coastal salt marsh. southern coastal 0 Comment
  RSA788806  Baccharis emoryi R. F. Thorne 1977-11-21 49981 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  VVC1118  Baccharis emoryi A. C. Sanders, J. Mac 1998-10-17 22265 Orange Coastal flats, Bolsa Chica, near Bolsa Bay, south of Warner Ave., E of the Pacific Coast Highway .3 Comment
  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
  RSA0008326  Baccharis malibuensis R. E. Riefner, Adrian Wolf 2000-8-23 20 -732 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  RSA741699  Baccharis malibuensis R. E. Riefner Jr. 2008-7-17 08 -239 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Rd. 574 Comment
  CAS-BOT-BC99445  Baccharis pilularis B. Pitzer; T. Tennant 1997-11-8 3376 Orange Crystal Cove State Park: Pelican Point Area, grassland area between Pacific Coast Hwy & the bike trail 30 Comment
  UCR186681  Baccharis pilularis T. B. Salvato, Katie Kurtz 2006-10-15 1914 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  SD9148  Baccharis pilularis subsp. consanguinea unknown Dec 1878 Orange Santa Ana Valley Comment
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Oct 29 2013
  CAS-BOT-BC106730  Baccharis salicifolia C. L. Hitchcock; C. V. Muhlick 22118 Orange 1 mi. n. of Brea, at mouth of Brea Canyon, along intermittent stream. Comment
  CAS-BOT-BC106733  Baccharis salicifolia John Thomas Howell 1927-10-23 3171 Orange Sandy flats of Santa Ana River bottom, Santa Ana Canyon [Canon] 152 Comment
  POM350366  Baccharis salicifolia N. C. Cooper 1949-3-18 3166 Orange Santa Ana Canyon 244 Comment
  RSA734660  Baccharis salicifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal, David E. Bramlet 2008-5-9 35295 Orange Weir Canyon, c. 1.1 mi. E of Walnut Cyn Reservoir. 277 Comment
  SBBG40584  Baccharis salicifolia C. Ingram 1960-3-29 256 Orange ca. 3 mi above O'Neill Park, Trabuco Cyn Comment
  SD175792  Baccharis salicifolia D. G. Kelch 2006-12-9 06 557 Orange Irvine, University Dr. along tidal creek just east of I-73. 9 Comment
  JEPS40678  Baccharis salicifolia subsp. salicifolia Alice King 1908-4-1 Orange Santiago Creek Comment
  UCD129399  Baccharis salicina A. C. Sanders 1990-10-6 10199 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1. 1 Comment
  RSA0069228  Bacopa monnieri Fred M. Roberts, Sandra Leatherman 2008-9-3 7090 Orange Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave. 113 Comment
  RSA615541  Bahiopsis laciniata Fred M. Roberts 1997-10-28 5052 Orange Lomas de Santiago: mouth of Silverado Canyon, along Black Star Canyon Road, 0.1 km N jct. Silverado Canyon rd., 4.8 km NNW Bolero Lookout. 305 Comment
  UC536942  Bassia hyssopifolia Lawrence M. Booth 1932-5-27 1130 Orange West Newport Beach Comment
  UCSB48040  Bassia hyssopifolia Roberts, Jr., Fred 1981-9-26 Orange Newport Beach: Pacific Coast Highway, 0.3km W Newport Blvd.; 0.4 km. SE Bench Mark 10 3 Comment
  CHSC26476  Batis maritima James Henrickson 1970-7-25 5034 b Orange 3 1/2 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along Pacific Coast Hwy. 0 Comment
  POM201706  Batis maritima L. M. Booth 1932-6-9 1184 Orange Newport Bay. Comment
  RSA234490  Batis maritima James Henrickson 1970-9-5 5316 Orange 3.5 miles NW of Huntington Beach, 0.25 mile SE of Warner Ave. in Lower Littoral zone of Bolsa Chica Salt Marsh along outer Bolsa Bay. 0 Comment
  UCR130498  Batis maritima R. E. Riefner Jr. 2003-8-17 03- 336 Orange South Coast, Costa Mesa, salt marsh along Santa Ana River, west of Talbert Regional Park 11 Comment
  POM17862  Bebbia juncea Philip A. Munz 1923-7-8 73226 Orange Santa Ana River Canyon Comment
  RSA1358  Bebbia juncea B. D. Stark 1929-11-2 651 Orange Along railroad track, Rancho Santa Ana 152 Comment
  RSA5334  Bebbia juncea B. D. Stark 1933-1-3 4480 Orange Rancho Santa Ana near pear orchard. 122 Comment
  UCR240088  Bebbia juncea Dick Newell, Don Millar 2012-10-2 303 Orange Peninsular Range; Santa Ana Mtns., Blackstar Cyn at Santiago Creek, 0.35 mi. SW of Baker Canyon Rd. 288 Comment
  RSA789603  Berberis dictyota R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49716 Orange Santa Ana Mountains: Bedford Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail Comment
  CHSC26010  Beta vulgaris James Henrickson 1970-7-25 5082 Orange 3 1/2 miles NW of Huntington Beach growing along graded inner slope of East Garden Grove- Wintersburg Flood Control Channel near Bolsa Chica Salt Marsh. 2 Comment
  SD143950  Beta vulgaris Scott D. White 1993-3-5 1128 Orange Marine Corps Air Station, southeast of Red Hill Ave. and northeast of Barranca. 14 Comment
  RSA5958  Beta vulgaris C. B. Wolf 1932-7-7 3852 Orange Bixby Ave., 1.3 mi. W of Hansen Road. (0.2 mi. E of SW corner of NW 1/4 of NE 1/4 of Sect. 33). 8 Comment
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Apr 10 2014
  RSA800671  Bidens laevis Justin M. Wood 2010-9-29 2750 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
  IRVC19421  Bidens pilosa R. L. Allen 1983-2-12 A630 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  RSA184197  Bidens pilosa I. L. Wiggins 1965-12-18 20426 Orange Margin of lawn, upper edge of Hillcrest Park, Fullerton Comment
  UCD129567  Bidens pilosa Ira L. Wiggins 1965-11-5 20328 Orange Orange Grove on north side of Chapman Avenue near Kraemer Road, Fullerton. Comment
  UCSB52419  Bidens pilosa Roberts, Fred; Marsh, K. 1982-10-18 Orange Laguna Beach; east flank of Temple Hill, along east margin of Top of the World School 295 Comment
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Jan 25 2020
  RSA652654  Bloomeria crocea Diane T. Liggett 1981-5-16 3 Orange Riverside Freeway (91) east to Imperial Hwy, south to Nohl Ranch Road, east to Serrano Ave., south on Hidden Cyn. Road, .5 km into Weir Cyn. Comment
  RSA659988  Bloomeria crocea Steve Teh 1994-5-20 22 Orange Modjeska Grade rd. 1/2 mile on trail above fire road. Comment
  UCD139090  Bloomeria crocea Earl Brown; Tracy Brown 1993-5-2 s.n. Orange San Clemente State Beach, located about 200' SW of main entrance. 60 Comment
  UCR266417  Bolboschoenus maritimus D. E. Bramlet 2009-11-20 4418 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  UCR102441  Bolboschoenus maritimus subsp. paludosus Scott D. White 1997-5-26 4814 Orange University of California, Irvine campus. Site of proposed student recreation center, east of main campus. Existing 'Farm School' & adjacent grasslands (horse pasture) between California Ave. & Culver Dr. 40 Comment
  UCR85532  Bolboschoenus maritimus subsp. paludosus Scott D. White 1993-4-28 1289 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  CAS-BOT-BC21117  Bolboschoenus robustus James R. Shevock 1972-9-27 2288 Orange South Coast Ranges. Upper Newport Bay, city of Newport Beach. 1 Comment
  UC712166  Bothriochloa barbinodis Charles B. Fiker 1944-7-7 3139 Orange Trabuco Canyon, on Bill Rochester Ranch Trabuco Canyon Comment
  UCR140887  Bougainvillea glabra Robert DeRuff 1988-9-16 348 Orange Southern Coast, Newport Beach, Newport Back Bay, path between 23rd Street and Mariners Drive 9 Comment
  UCR218460  Bougainvillea glabra Robert DeRuff 2008-1 348 Orange South Coast, Upper Newport Bay, between Mariner's Drive and 23rd St. 12 Comment
  UCD127256  Bowlesia incana Ronni Stachelek; Bob Anderson, Frances Schropshire 1995-3-1 39 Orange Newport Beach, Upper Newport Bay on Back Bay Drive ca. 1/2 miles north of Shellmaker Island. Comment
  RSA542371  Brachypodium distachyon Fred M. Roberts, Karlin G. Marsh 1988-4-25 3933 Orange San Joaquin Hills: East flank Pelican Hill, 0.9 kilometer SE summit. 120 Comment
  UCR191215  Brachypodium distachyon A. C. Sanders 2008-4-29 35145 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
  UCR85395  Brachypodium distachyon Sean O'Brien 1995-5-17 s.n. Orange San Joaquin Hills, upper reaches of Buck Gully, just north of Newport Coast Drive. 183 Comment
  IRVC1027  Brassica geniculata I. L. Wiggins 1965-10-24 20281 Orange [East Coyote Hills] along Skyline Dr. near Raymond St. Fullerton Comment
  IRVC14742  Brassica geniculata A. S. Boughey 1968-4-23 214 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  IRVC28773  Brassica geniculata Duy D. Nguyen 2006-2-4 1 Orange San Joaquin Marsh; NW Edge of Marsh. Southern Coastal 5 Comment
  CLARK-A1528-982  Brassica nigra Patricia A. Andrews 1975-6-26 5915 Orange Capistrano Bay Beach 9 Comment
  IRVC1036  Brassica nigra B. Mawdsley 1965-5-8 Orange Mesa Dr. Santa Ana Heights Comment
  RSA0043350  Brassica nigra David Barrios 1991-5-8 40 Orange 1500 ft. northwest of Fairmont Ave and Quail Cir., Yorba Linda. 365 Comment
  RSA0066343  Brassica nigra Fred M. Roberts, David E. Bramlet 2004-4-21 6041 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Flagpole Meadow in upper Shady Canyon, 1.63 km NW Sycamore Gate, 1.18 km W of Cristianitos Road. 168 Comment
  CAS-BOT-BC36768  Brassica rapa Ira L. Wiggins 1965-12-5 20365 Orange 2 miles east of Atwood on north side of Orangethorpe Avenue. Comment
  POM322  Brassica rapa J. T. Howell 1928-1-15 805 Orange Near the Ranch House. Rancho Santa Ana. 152 Comment
  RSA0073643  Brassica tournefortii Fred M. Roberts, Lee Ann Caranza, Eliza Maher 2009-4-7 7144 Orange South Coast Region: Dana Point Headlands: Dana Point CNLM Preserve, 0.7 km WNW Dana Point Marine Institute at Dana Point Harbor, near 2nd Lookout along trail. 49 Comment
  UCSB48079  Brickellia californica Roberts, Fred 1981-11-15 Orange Santa Ana Mtns.; San Juan Canyon, Hwy. 74, across road from entrance to Lower San Juan Picnic Ground 436 Comment
  RSA655022  Brodiaea filifolia David E. Bramlet 1998-5-21 2625 Orange On slope adjacent to a tributary of Segunda Deshecha Canada, approximately 610m north of the existing access road (Telaga Valley Dr.) and 2.9 km north of Avenida Pico., The site is approximately 1.93 km west of Cristianitos Canyon & 640m west of Wilson Camp Road. 201 Comment
  UCR142297  Brodiaea filifolia D. E. Bramlet, Sandy Leatherman 1998-5-21 2625 Orange Slope adjacent to a tributary of Segunda Deshecha Canada, c. 610 m N of the exisitng access road (Telaga Valley Dr.) and 2.9 km N of Avenida Pico. c. 1.93 km west of Cristianitos Canyon and 640 m west of Wilson Camp Rd 201 Comment
  RSA581665  Brodiaea jolonensis Tony Bomkamp 1995-06 s.n. Orange Rancho Mission Viejo, ridge west side of Canada Gobernadora, west of Casper Regional Park. 140 Comment
  RSA696331  Bromus Keith E. Hoffmaster 1927-5-2 s.n. Orange Santa Ana Comment
  RSA792246  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-4-22 35025 Orange Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 366 Comment
  SEINET14397269  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-6-17 35486 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
  UCD58368  Bromus catharticus John Thomas Howell 1956-3-11 30922 Orange Yorba Linda. Comment
  CAS-BOT-BC156003  Bromus diandrus Ira L. Wiggins 1966-2-19 20454 Orange Roadside in Carbon Canyon near Orange County Survey bench mark RCE 7872. Comment
  RSA0042731  Bromus diandrus David Barrios 1991-5-1 19 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  RSA699982  Bromus grandis Rankin s.n. Orange Santa Ana. Comment
  SD95150  Bromus grandis Jack l. Reveal 1975-7-18 1765 Orange Occasional on dry sites among boulders, riparian zone, Trabuco Canyon 550 Comment
  RSA598967  Bromus hordeaceus Scott D. White 1997-3-28 4845 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 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
  UCSB48070  Bromus hordeaceus Fritzke, S.; Roberts, Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N of Dana Hills High School; 1.9 km. W of Marco Forster Junior High School 100 Comment
  RSA41  Bromus hordeaceus J. T. Howell 1928-3-17 865 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA4803  Bromus hordeaceus James Snow s.n. Orange Bryant Ranch, near Long Beach. South West 1/4 Section 1, Township 5 S, Range 12 W, Station #1. Comment
  RSA696603  Bromus hordeaceus Rankin s.n. Orange Santa Ana. Comment
  RSA713565  Bromus inermis subsp. inermis R. E. Riefner Jr. 2005-10-1 5 -702 Orange City of Costa Mesa, South Coast Dr. at Susan Rd. 16 Comment
  RSA0013861  Bromus madritensis Fred M. Roberts 2012-4-24 7517 Orange San Joaquin Hills: Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  RSA697684  Bromus rigidus Rankin s.n. Orange Costa Mesa. Comment
  RSA681951  Bromus rubens Fred M. Roberts, David E. Bramlet 2003-3-7 5565 Orange Donna O'Neill Land Conservancy; West slopes of Christianitos Canyon, Middle Ridge Trail, 0.1km NW Gato Gate. 123 Comment
  RSA737546  Bromus rubens Fred M. Roberts 2008-3-12 6715 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UCD59511  Bromus rubens Beecher Crampton 1963-5-7 6791 Orange Ca. 11 miles northeast of San Juan Capistrano, State Hwy. 74, Lower San Juan Canyon, Santa Ana Mountains. Comment
  POM363950  Bromus rubens E. A. McGregor 1966-5-15 s.n. Orange Ortega Highway, between Lake Elsinore and San Juan Capistrano. Comment
  RSA234487  Cakile maritima var. maritima James Henrickson 1970-7-24 5003 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. Comment
  RSA699295  Calandrinia R. H. McArthur 1934-3-10 s.n. Orange Tomatoe Springs Comment
  SBBG122652  Calandrinia breweri A. C. Sanders, F. M. Roberts, A. O'Neal 2008-5-9 35314 Orange Weir Cyn, along fire line/bulldozer cut, ca. 1.5 mi E of Walnut Cyn Reservoir 346 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
  UCR210367  Callistemon viminalis T. B. Salvato, Billy Deane 2006-10-16 1942 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  POM11615  Callitriche marginata P. A. Munz 1921-4-12 4479 Orange Laguna Beach; 1 mile north of Laguna on bluff near clubhouse. 61 Comment
  RSA799947  Callitriche marginata Justin M. Wood 2011-4-12 3660 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  HSC15349  Calochortus catalinae S. M. Clapp 1966-4-3 1 Orange 1.0 mi. N of Orange County-Olinda Dump 61 Comment
  POM13942  Calochortus catalinae William M. Pierce 1922-4-11 s.n. Orange Santa Ana Mountians, Santa Ana Canyon. Comment
  RSA0013958  Calochortus catalinae Fred M. Roberts 2008-5-7 6938 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
  RSA552928  Calochortus catalinae Fred M. Roberts, Carol A. Roberts 1989-5-11 4350 Orange Santa Ana Mountains: Upper Gypsum Canyon, along ridge road, 5.6 kilometers SW Sierra Peak. 472 Comment
  RSA734648  Calochortus catalinae A. C. Sanders, Fred M. Roberts 2008-3-25 34568 Orange Peninsular Range; Santa Ana Mtns.: Saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake. 405 Comment
  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
  POM1699  Calochortus splendens D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  RSA118  Calochortus splendens J. T. Howell 1928-4-7 895 Orange Bee Canyon, Rancho Santa Ana 152 Comment
  SEINET4063239  Calochortus splendens G. Sphon 1959-1 325 Orange Between Upper and Lower San Juan Camps, Cleveland National Forest. Comment
  UCR223435  Calochortus splendens Dick Newell, Don Millar 2011-3-1 075 Orange Peninsular Range; Santa Ana Mtns. Foothills, MWD road east of outdoor education property, 1.6 mi. NW (312 deg. ) of Irvine Lake dam 258 Comment
  RSA49099  Calochortus splendens Philip A. Munz 1949-5-26 13371 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains 762 Comment
  SEINET7067520  Calochortus striatus A. G. Vestal 1947-6-12 s.n. Orange Along a tributary of Arroyo Trabuco. Trabuco Creek. Coordinate datum: NAD27. UTM Zone 11, 444413mE, 3723361mN. Comment
  CDA39277  Calochortus venustus R. G. Ahlefeld & R. L. Pope 1957-4-1 s.n. Orange Irvine Ranch. 0 Comment
  RSA769610  Calochortus weedii E. W. Lathrop 1974-6-27 7417 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 396 Comment
  CAS-BOT-BC132660  Calochortus weedii var. intermedius John Thomas Howell 1927-7-3 2636 Orange Claymine [Canon] Canyon, n. Santa Ana Mts. 304 Comment
  NY1104588  Calochortus weedii var. intermedius L. Abrams 06 1901 1802 Orange Isabuco Canon [Isabuco Canyon] Comment
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Aug 7 2013
  RSA0135555  Calochortus weedii var. intermedius David E. Bramlet 2004-6-3 3596 Orange Peninsular Ranges; Santa Ana Mountains region: Tributary to Williams Cyn, 610m SW of Williams Cyn., & 122mW of the existing access road. 494 Comment
  RSA588989  Calochortus weedii var. intermedius D. E. Bramlet 1994-6-23 2389 Orange Upper portion of Little Sycamore Canyon, W of Laguna Canyon Road. 140 Comment
  RSA68621  Calochortus weedii var. intermedius Frank W. Peirson 1927-6-20 7350 Orange Site for botanical garden (Rancho Santa Ana) Comment
  RSA741725  Calochortus weedii var. intermedius R. E. Riefner 2008-6-3 8 -138 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, E fork Fremont Canyon, Black Star SCE Rd. 622 Comment
  SEINET3885376  Calochortus weedii var. intermedius D. Bramlet 1994-6-2 2378 Orange San Joaquin Hills. On ridgeline north of Little Sycamore Canyon. The site is locate 244 m NE of Little Sycamore Canyon and 1.3 km west of Laguna Cyn. Road. Laguna Beach 7.5 USGS quadrangle 37 19 160m. N X 4 29 160m E.; 0 165 Comment
  UC1952586  Calochortus weedii var. intermedius D. Bramlet 1994-6-23 2392 Orange San Joaquin Hills. On ridgeline between Camarillo and Shady Canyons. The site is located 1.5 km west of Laguna Cyn. and 183 m SE of the Shady-Camarillo Cyn. Road junction; Laguna Beach 7.5 USGS Quadrangle 37 18 130m. N x 4 27 850m E. Comment
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Oct 17 2017
  UCR112937  Calochortus weedii var. intermedius R. E. Riefner Jr. 2000-6-26 20- 580 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, along dirt road running N and west of Black Star Cyn. Road at powerline tower 631 Comment
  RSA741483  Calochortus weedii var. weedii R. E. Riefner 2008-6-5 8 -145 Orange Near City of Orange, W side of Hicks Haul Rd., Rattlesnake Cyn., SW of the asphalt plant, Irvine Ranch Reserve, Management Area 6. Comment
  UCR160851  Calochortus weedii var. weedii Mark S. Brunell 1991-7-4 s.n. Orange Peninsular Range; Santa Ana Mtns., Hwy 74 c. 3 miles east of San Juan Hot Springs 427 Comment
  CDA25245  Calycadenia tenella A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35323 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, 0.3 mile west of Eastern Transportation Corridor (Highway 241) and 1.45 miles east of south end of Walnut Canyon Reservoir. Comment
  RSA649679  Calycadenia tenella R. E. Riefner 2000-5-6 20 -444 Orange NCCP North Ranch Policy Plan Area: NE property; along powerline on National Forest boundary. 582 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
  UCR131876  Calystegia macrostegia J. Mallory, V. McCoy 1995-7-3 6454- 129 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. NE of confluence w/ Santiago Canyon Wash; north of Irvine Lake. 300 Comment
  UCR191333  Calystegia macrostegia A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34616 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-BC221305  Calystegia macrostegia subsp. intermedia C. B. Wolf 1932-3-6 1865 Orange 2 miles from Orange County Park on road to Anaheim 152 Comment
  SD181588  Calystegia occidentalis subsp. fulcrata Valerie Soza, LeRoy Gross 1999-6-7 488 Orange Santa Ana Mountains, west side of Modjeska Peak, along Main Divide Road. Open west-facing steep slope, on upper side of dirt road. 1448 Comment
  JEPS47827  Calystegia sepium subsp. binghamiae L. M. Booth 1932-8-5 1359 Orange Huntington Beach Comment
  JEPS47828  Calystegia soldanella L. M. Booth 1932-5-25 1111 Orange Balboa Island , Balboa Island (Newport Bay) Comment
  RSA113268  Calystegia soldanella E. K. Balls 1955-4-4 20420 Orange Coastal Strand, mouth of Santa Ana River, W bank, Hwy 101. 3 Comment
  RSA186655  Camissonia bistorta Peter H. Raven 1962-4-28 17491 Orange 6.5 miles east of San Juan Capistrano 91 Comment
  RSA4786  Camissonia bistorta James Snow 1932-04 s.n. Orange Cypress, Bryant Ranch near Long Beach. Comment
  RSA49672  Camissonia bistorta L. R. Abrams 1901-6-15 1793 Orange Santiago Peak trail. Comment
  RSA732249  Camissonia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35002 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 213 Comment
  NY679591  Camissonia cheiranthifolia subsp. suffruticosa L. Abrams 1917-6-23 6576 Orange Balboa. Comment
  RSA678741  Camissonia cheiranthifolia subsp. suffruticosa Valerie L. Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1111 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA698255  Camissonia cheiranthifolia subsp. suffruticosa Minor Warne 1934-04 s.n. Orange Sand hills along the coast. Comment
  UCR267189  Camissonia cheiranthifolia subsp. suffruticosa Fred M. Roberts 2010-3-12 7181 Orange Southeast Coast, DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c. 150 meters SE Interpretive Center 50 Comment
  UCR192491  Camissonia hirtella A. C. Sanders, Fred M. Roberts 2008-3-25 34558 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR267215  Camissonia micrantha Fred M. Roberts, Lee Ann Caranza 2009-4-7 7143 Orange South Coast Region, DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.5 km WNW Dana Point Marine Institute at Dana Point Harbor, near Interpretive Center 70 Comment
  UC1607988  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Donald G. Nelson 1935-4-14 270 Orange Newport Beach. Comment
  CAS-BOT-BC160448  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange Sunset Beach Comment
  JEPS31764  Camissoniopsis cheiranthifolia subsp. suffruticosa Alice King 1908-1 Orange Newport Comment
  UC422961  Camissoniopsis cheiranthifolia subsp. suffruticosa D. L. Crawford 742 Orange Aliso Pt. Laguna Beach Region (shore cliffs) Comment
  CAS-BOT-BC37129  Capsella bursa-pastoris Ira L. Wiggins 1966-3-22 20543 Orange Near bottom of Silverado Canyon, near end of road about 5 miles above Ranger Station, Cleveland National Forest. Comment
  IRVC29088  Capsella bursa-pastoris Fred M. Roberts 1989-3-17 4203 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA681847  Capsella bursa-pastoris Scott D. White, Michael Honer 2003-6-12 9539 Orange Rancho Mission Viejo. Upper end of Trampas Canyon. 152 Comment
  CAS-BOT-BC37593  Cardamine californica C. B. Wolf 1931-1-30 1826 Orange Santa Ana Mountains. Claymine Canyon. 304 Comment
  UCR237834  Cardamine flexuosa Mark A. Elvin 2003-2-2 2297 Orange South Coast, UC Irvine Arboretum, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 17 Comment
  RSA696167  Cardaria draba Keith E. Hoffmaster 1932-5-30 s.n. Orange Santa Ana. Comment
  UC1719445  Cardionema ramosissimum D. Atwood 1993-3-26 17689 Orange Corona Del Mar State Park along Newport Coast Drive 0 Comment
  UCR241910  Cardionema ramosissimum Fred M. Roberts 2012-5-10 7568 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km north of Pelican Hill summit 154 Comment
  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
  SEINET11629784  Carex amplectens H. D. Geis 1902-1 502 Orange no further locality Comment
  CAS-BOT-BC118489  Carex praegracilis Helen D. Geis 1902-4-1 504 Orange Unspecified Comment
  CAS-BOT-BC118491  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Unspecified Comment
  CAS-BOT-BC118497  Carex praegracilis Helen D. Geis 1902-1-1 s.n. Orange Near Santa Ana Comment
  CAS-BOT-BC118501  Carex praegracilis Helen D. Geis 1902-4-1 502 Orange Santa Ana Comment
  RSA542341  Carex praegracilis Fred M. Roberts, Dar A. Roberts 1989-3-22 4215 Orange Aliso-Wood regional Park: Lower Wood Canyon, 3.6 km SSE Moulton Peak. 34 Comment
  RSA76  Carex praegracilis J. T. Howell 1928-4-7 904 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  CAS-BOT-BC118507  Carex praegracilis Helen D. Geis 1902-4-1 502 Orange Ditch banks Comment
  UC796593  Carex praegracilis Helen D. Geis 1902-4 Orange Comment
  UCSB48106  Carex spissa Fritzke, S.; Roberts, Fred 1982-4-3 Orange Santa Ana Mtns.: Lower Hot Springs Canyon; Lazy W Road; 2.4 km. N by road; San Juan Guard Station; 1.4 km. NNW Juan Rancho Survey Mark 240 Comment
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Mar 18 2011
  SEINET10495943  Carissa macrocarpa Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-7-21 Dziekanowski 2417 Orange Collected around the condominium-Pacific Island Estates in Laguna Beach. Comment
  SEINET10447212  Carpobrotus aequilaterus Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7130 Orange In vicinity of Laguna Beach. 152 Comment
  RSA640969  Carpobrotus chilensis L. C. Wheeler 1931-6-8 s.n. Orange Balboa Comment
  UCR19134  Carpobrotus chilensis John C. Roos 1937-2-23 1348 Orange South Coast, Laguna Beach Comment
  RSA113270  Carpobrotus chilensis E. K. Balls 1955-4-4 20418 Orange Coastal Strand, mouth of Santa Ana River, W bank, Hwy 101. 3 Comment
  RSA0037204  Carthamus baeticus Darren Day, Hal Willis 1984-5-20 035 Orange Growing on the east side of Laguna Canyon Rd. as you are traveling towards the city of Laguna Beach. This location approximately 5.2 miles out of town. Comment
  CDA6922  Carthamus creticus E. Dudley 1957-6-17 Orange 0 Comment
  HSC20510  Castilleja affinis S. M. Clapp 1966-4-7 16 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 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
  RSA638965  Castilleja affinis subsp. affinis Valerie L. Soza, LeRoy Gross 1999-6-7 480 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA543970  Castilleja applegatei subsp. martinii Steve D. Boyd, Orlando Mistretta 1991-5-9 3201 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  UC885188  Castilleja foliolosa I. W. Clokey 1932-3-1 5342 Orange Laguna Beach Comment
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Aug 31 2016
  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
  RSA429526  Caulanthus heterophyllus Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  RSA101784  Ceanothus crassifolius R. Weatherby 1950-2-25 1024 Orange Harding Canyon, Santa Ana Mts. 457 Comment
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Oct 23 2012
  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
  UCSB48018  Ceanothus crassifolius Roberts, Fred 1981-4-11 Orange Santa Ana Mtns., Long Cyn., 2.3km SE Blue Jay Campground, along forestry road, 1.0km W Hwy 74, 243 Comment
  RSA399913  Ceanothus integerrimus Albert J. Perkins 1918-5-25 s.n. Orange Santiago Peak. Comment
  RSA733958  Ceanothus integerrimus Keith E. Hoffmaster 1936-5-3 716 Orange Santa Ana Mts (Santiago Peak) Comment
  UCR131677  Ceanothus integerrimus C. B. Wolf 1941-8-15 11155 Orange Santa Ana Mtns., Santiago Peak, north side 0.5 mi. from summit [near Riverside county line] 1677 Comment
  SEINET13945958 Image available Ceanothus integerrimus S. Lambert 1981-1 1958 Orange Cleveland Nat'l Forest, 15.6 mi E of hwy. 5 by hwy 74, roadside, 1350 ft elev. 411 Comment
  RSA16472  Ceanothus integerrimus var. californicus Percy C. Everett 1935-6-19 7236 Orange Trabuco Canyon, 1mile below W summit of truck trail. 1006 Comment
  SD42450  Ceanothus integerrimus var. macrothyrsus Carl B. Wolf 1941-8-15 11153 Orange Santa Ana Mts. W. slope Santiago Truck Trail, 1.6 mi. below Main Divide Motorway 1219 Comment
  RSA12375  Ceanothus megacarpus Carl B. Wolf 1934-3-21 5577 Orange Santa Ana River, Santa Ana Canyon, 1/2 mi. S.W. of Mexican Houses, Rancho Santa Ana. 122 Comment
  SD130284  Ceanothus megacarpus B. Pitzer 1987-4-24 505 Orange 0.5 mile N of State Hwy 91, off Gypsum Canyon Rd., river at N side of stable. 120 Comment
  SD236395  Ceanothus megacarpus A. C. Sanders, Fred M. Roberts, Amber ONeal, D. E. Bramlet 2008-5-9 35301 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road, c. 1.25 mi ESE of Walnut Cyn Reservoir. 340 Comment
  RSA13145  Ceanothus oliganthus Percy C. Everett 1935-6-18 7202 Orange Main Divide Motorway 1.7 mi. N. of Los Pinos Potrero. 1128 Comment
  RSA790668  Ceanothus oliganthus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49701 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA790670  Ceanothus oliganthus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49699 Orange Northern Santa Ana Mountains: Sierra Peak Comment
  SD255267  Ceanothus oliganthus Robert F. Thorne, E. W. Lathrop 1977-5-18 49760 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail. Comment
  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-BC63561  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
  LA44923  Ceanothus oliganthus var. sorediatus W. Pequegnat; 1938-3-19 sn Orange Holy Jim Trial 944 Comment
  RSA748818  Ceanothus palmeri G. Gust, L. Nye 2005-3-12 563 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  SD82797  Ceanothus papillosus var. roweanus F. W. Peirson 1923-5-6 3492 Orange Trail from Trabuco Canyon to Santiago Peak, Santa Ana Mountains (in Holy Jim Canyon) 990 Comment
  CDA23123  Ceanothus spinosus Scott D. White, J. Wood 2008-4-1 11848 Orange Chino Hills; Powerline access road just north of CHSP boudary and just west of Orange/San Bernardino county line. Approximately 1 mile northwest of Gilman Peak. Comment
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Nov 19 2013
  RSA698615  Ceanothus spinosus Mabel Harvey s.n. Orange Silverado Canyon Comment
  UC729696  Ceanothus tomentosus Carl B. Wolf 1932-3-8 2693 Orange West Base of Santa Ana Mountains, Santiago Creek, 1 mile E of Villa Park 152 Comment
  SD248305  Cenchrus longisetus R. E. Riefner Jr. 2013-2-11 13 41 Orange City of Laguna Beach, vicinity of Pacific Coast Highway and Montage Resort Drive. 29 Comment
  RSA752850  Centaurea melitensis Fred M. Roberts 2009-4-21 7154 Orange Dana Point Headlands: southern cliffs, 0.7 km W Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  SD143577  Centaurea melitensis R. D. Goeden, D. W. Ricker 1965-6-21 Orange Dana Point 75 Comment
  UC30921  Centaurea melitensis C. W. Hamlin 1896-1 Orange Buena Park Comment
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Apr 30 2008
  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
  RSA797405  Centaurea repens Keith E. Hoffmaster 1933-9-24 s.n. Orange Santa Ana. Comment
  CDA7331  Centaurea solstitialis T. C. Fuller 1962-6-7 8870 Orange Fullerton Golf Course. Fullerton 0 Comment
  RSA725538  Centranthus ruber Fred M. Roberts, Robert L. Allen 2007-9-28 6608 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  CAS-BOT-BC288850  Centromadia parryi subsp. australis Carl B. Wolf 1932-6-28 3781 Orange Bryant Ranch, about middle of W boundary of 40-acre Valencia orange grove at Bryant Ave and Hansen Rd Comment
  JEPS38139  Centromadia parryi subsp. australis L. M. Booth 1933-10-18 Orange Newport Comment
  SD80940  Centromadia parryi subsp. australis James Henrickson 1970-7-25 5071 Orange 3 miles northeast of Huntington Beach at far northern end of Bolsa Chica Salt Marsh near pasture; along channel south of Flood Control channel (mak 10/07) 0 Comment
  RSA0037255  Centromadia parryi subsp. australis Sandy Leatherman, Melissa Riedel-Lehrke 2013-5-21 2013 -6 Orange Coastal Plains & Basins; South Coastal Plain region: South Orange County, 1.4 miles east of the intersection of Antonio Parkway and Crown Valley Parkway, in the undeveloped foothills. 146 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
  CAS-BOT-BC142125  Cercocarpus betuloides var. betuloides Munz; Street; Williams 1919-5-3 2626 Orange Santa Ana River Canyon Comment
  SBBG2894  Cercocarpus betuloides var. betuloides H. and M. Dearing 1937-3-12 Orange Santa Ana Cyn Comment
  CAS-BOT-BC279501  Chaenactis artemisiifolia R. K. Brummitt 1998-5-23 19996 Orange San Juan Canyon, 22 km NE of San Juan Capistrano on Rte. 74 300 Comment
  CLARK-A1528-1693  Chaenactis artemisiifolia John C. Roos 1965-6-16 Orange Dana Point Comment
  POM49175  Chaenactis artemisiifolia L. R. Abrams 1901-6-15 1808 Orange Trabuco Canyon Comment
  RSA443833  Chaenactis artemisiifolia Gordon Marsh 1978-5-27 s.n. Orange Silverado Canyon. Silverado Canyon Rd, 0.4 mi. E of Post Office at bridge corssing Comment
  SD225727  Chaenactis artemisiifolia R. K. Brummitt 1998-5-23 19996 Orange 22 km NE of San Juan Capistrano on Rte. 74; dry roadisde in rocky canyon 299 Comment
  RSA627556  Chaenactis artemisiifolia Sandy Leatherman, Fred M. Roberts, Trish Smith 1998-5-23 24 Orange Black Star Canyon: Spur Road off of Black Star Canyon Road. Area burned during spring 1998 400 Comment
  RSA695672  Chaenactis glabriuscula Anonymous s.n Orange Orange County park Comment
  UCR138390  Chaenactis glabriuscula Scott D. White, Brian Leatherman 1997-6-12 5344 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
  UCR157714  Chaenactis glabriuscula Adrian Wolf 1998-5-15 294 B Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  CAS-BOT-BC283934  Chaenactis glabriuscula var. glabriuscula H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  POM351784  Chaenactis glabriuscula var. glabriuscula M. B. Dunkle 1935-3-3 4350 Orange San Juan Canyon. 457 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
  RSA747702  Chaenactis glabriuscula var. glabriuscula Fred M. Roberts 2008-5-16 6975 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
  UCR209359  Chaenactis glabriuscula var. glabriuscula Fred M. Roberts, D. E. Bramlet, Megan Lulow 2008-4-4 6845 Orange Lomas de Santiago, Loma Ridge, at Calochortus Ridge near East Lomas Ridge Road, 0.7 km east of Bee Peak, Irvine Ranch Conservancy 509 Comment
  RSA13106  Chaenactis glabriuscula var. lanosa Percy C. Everett 1935-5-17 6865 Orange Atwood, 7/8 miles E. S side of Santa Fe R. R tracks 152 Comment
  POM294107  Chaenactis glabriuscula var. megacephala Lyman Benson 1946-4-27 12053 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  HSC8025  Chamaesyce polycarpa S. M. Clapp 1966-4-10 37 Orange In Brea, just S of Imperial Hwy. E of Associated Rd. 61 Comment
  UC570789  Chamaesyce polycarpa H. L. Mason 1926-4-25 2912 Orange 5 mi s Laguna Comment
  POM2789  Chamaesyce polycarpa var. polycarpa D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  RSA554078  Chamaesyce serpens Scott D. White 1992-5-29 864 Orange Vicinity of city of Brea, immediately N of Carbon canyon Road & E of Placentia Avenue. +-1 mi. (airline) S/SE of Tonner Canyon. 183 Comment
  RSA797479  Chamaesyce supina R. F. Thorne 1977-11-21 49992 Orange Santa Ana Mountains: San Juan Canyon about 2 miles above San Juan Fire Station Comment
  UCR141343  Chasmanthe aethiopica Robert DeRuff 1999-1 515 Orange Southern Coast, Newport Beach, Newport Back Bay, bluff below Eastbluff North, c. a third of the way down from the bluff top 6 Comment
  RSA685788  Cheilanthes J. F. James 1879-4-11 212 Orange San Juan Capistrano Comment
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Nov 22 2013
  IRVC9289  Chenopodium album B. Gittins 1963-3-19 60 Orange 635 Joan. Costa Mesa Comment
  SD236265  Chenopodium album A. C. Sanders, Fred M. Roberts 2008-9-18 36065 Orange Peninsular Range; Santa Ana Mtns Foothills: Lomas de Santiago, Santiago Creek Canyon ca. 1 mile above the highway bridge (El Roro 7.5'Q) 320 Comment
  UC582777  Chenopodium album P. A. Munz 1936-6-30 14175 Orange 5 mi s Garden Grove 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
  UCR186133  Chenopodium ambrosioides T. B. Salvato, Katie Kurtz 2006-10-15 1920 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  RSA265  Chenopodium ambrosioides var. ambrosioides J. T. Howell 1927-7-18 430 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA751427  Chenopodium berlandieri A. C. Sanders, Fred M. Roberts 2008-7-3 35676 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor. 365 Comment
  SD136861  Chenopodium berlandieri Steve Boyd, Tim Ross 1994-9-14 8362 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Aliso Canyon. 341 Comment
  RSA234525  Chenopodium berlandieri var. sinuatum James Henrickson 1970-7-24 5019 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  RSA791869  Chenopodium berlandieri var. sinuatum R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49647 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 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
  RSA747591  Chenopodium californicum Fred M. Roberts 2000-5-5 5319 Orange Lomas de Santiago: Loma Ridge, Agua Chinon Cyn., north slope, 1.6 kmSSW Bolero Spr. and 2.6 km W Bolero Lookout. 308 Comment
  UCR136806  Chenopodium macrospermum A. C. Sanders, Mark A. Elvin 2003-11-9 27366 Orange Southern Coastal Slope, Irvine, San Joaquin Marsh adjacent to UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  POM201793  Chenopodium macrospermum var. farinosum L. M. Booth 1933-9-8 1390 Orange Anaheim Marsh. Comment
  POM201900  Chenopodium macrospermum var. halophilum L. M. Booth 1932-7-19 1289 Orange Bolsas Marsh. Comment
  IRVC21667  Chenopodium multifidum R. L. Allen 1983-6-1 A649 Orange southwest of I5 at Sand Canyon Ave. near old dwellings on Burt Lane; a naturalized weed. Irvine Comment
  IRVC22761  Chenopodium multifidum Karlin G. Marsh 1984-9-28 Orange Balboa Peninsula, collected near Balboa Pier in Balboa Pk., Newport Beach 0 Comment
  IRVC387  Chenopodium murale B. Mawdsley 1965-3-30 Orange east bluff at Mar Vista. Newport Beach Comment
  IRVC394  Chenopodium murale D. DeVault 1965-3-4 Orange Newport Beach Comment
  IRVC395  Chenopodium murale E. P. Cowper 1965-5-6 Orange Corona del Mar High School. Newport Beach Comment
  SD152882  Chenopodium murale Steve Boyd, Tim Ross 1992-5-19 7429 Orange Southern Santa Ana Mountains, western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo. 365 Comment
  UCR190993  Chenopodium murale A. C. Sanders, Fred M. Roberts 2008-4-22 35007 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
  SD136860  Chenopodium murale Steve Boyd, Tim Ross 1994-9-14 8347 Orange San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon Trailat stream crossing in Aliso Canyon. 341 Comment
  CLARK-A1528-976  Chenopodium rubrum Patricia A. Andrews 1975-6-26 5926 Orange Capistrano Bay Beach 9 Comment
  RSA754074  Chlorogalum pomeridianum A. C. Sanders, Fred M. Roberts 2008-7-16 35846 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  CAS-BOT-BC497717  Chlorogalum pomeridianum Carl B. Wolf 1932-7-2 3828 Orange Carbon Canyon, 1/2 mi. above LA Vida Spring, upper Sonoran 243 Comment
  UCSB50639  Chlorogalum pomeridianum Roberts, Fred 1982-7-7 Orange South Laguna; Niguel Hill, 1.4 km. ESE Aliso Peak; 2.6 km. SSW Niguel Fire Station 207 Comment
  UC1618060  Chorizanthe Donald G. Nelson 1935-6-22 325 Orange Corona del Mar Comment
  RSA0004893  Chorizanthe chrysacantha P. A. Munz, R. D. Harwood 1920-4-17 3775 Orange Laguna Beach. Bluffs along coast Comment
  CLARK-A1528-3600  Chorizanthe fimbriata John C. Roos 1965-6-16 Orange Comment
  RSA588980  Chorizanthe procumbens D. E. Bramlet 1994-6-23 2388 Orange San Joaquin Hills. ''Pass area'' between Little Sycamore and Camarillo Canyons. The site is 945m of Camarillo Canyon Road and 5 m west of the existing dirt road. 122 Comment
  RSA785186  Chorizanthe procumbens D. E. Bramlet 1983-5-28 1388 Orange Dana Point, 154 m SW of Pacifc Coast Highway 73 Comment
  UCR223955  Chorizanthe procumbens Fred M. Roberts 2008-4-2 6842 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, south of NE gate along bluff, 0.5 km west of Marine Institute, Dana Point Harbor 45 Comment
  CAS-BOT-BC255247  Chorizanthe staticoides Frank W. Peirson 1924-5-31 4644 Orange Laguna, near sea level Comment
  POM201761  Chorizanthe staticoides L. M. Booth 1932-5-12 s.n. Orange Newport Bay. Comment
  RSA188  Chorizanthe staticoides J. T. Howell 1927-6-8 55 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA588786  Chorizanthe staticoides Fred M. Roberts, Kathy Keane 1990-4-18 4576 Orange Rancho Mission Viejo: Chiquita Rdge, west of Canada Chiquita, 2.0 km N Median Rancho Survey Marker 152 Comment
  UC205943  Chorizanthe staticoides D. L. Crawford 1916-5-5 Orange Laguna Beach Comment
  UCR16544  Chorizanthe staticoides P. Healy 1968-5-11 s.n. Orange South Coastal Plains Region, Cameo Shores Rd., Corona del Mar 18 Comment
  CAS-BOT-BC502068  Chrysanthemoides monilifera R. E. Riefner, Jr. 2012-2-23 12 -44 Orange City of Laguna Beach, S of Goff Island, Montage Resort, Treasure Island Park, W of Pacific Coast Hwy 7 Comment
  IRVC17045  Chrysanthemum coronarium J. Schram 1965-4-14 Orange Calif. 1. Laguna Beach Comment
  IRVC23283  Chrysanthemum coronarium Karlin G. Marsh 1987-4-24 Orange east side of Hwy 74 along Carrillo Rd., near park boundary; roadside. Casper's Regional Park Comment
  RSA782060  Chrysanthemum coronarium Mark A. Elvin 2003-2-23 2311 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  UCR220970  Chrysanthemum coronarium Dick Newell, Don Millar 2010-4-13 19 Orange Peninsular Range; Santa Ana Mtns. Foothills, Portola Parkway at tollroad 241 244 Comment
  POM201616  Cicuta bolanderi L. M. Booth 1932-7-4 1246 Orange Newport Lagoon. Comment
  CLARK-A1528-1094  Cirsium occidentale Michelle Loef 1973-5-25 250573-2 Orange 91 Comment
  CAS-BOT-BC280090  Cirsium occidentale var. californicum A. M. White 1974-6-1 1412 Orange About 20 mi. E. of Santa Ana, N of Silverado Canyon Comment
  UCSB48203  Cirsium occidentale var. californicum Roberts, Fred 1981-6-26 Orange Santa Ana Mtns.; San Juan Canyon, Lower San Juan Picnic Ground 392 Comment
  RSA643430  Cirsium vulgare R. D. Goeden, D. W. Ricker 1965-7-7 s.n. Orange Puente Hills: Brea Blvd. at Tonner Cyn Rd. confluence of Brea and Tonner Canyons, NE edge of Brea 146 Comment
  RSA734911  Cirsium vulgare A. C. Sanders, Fred M. Roberts 2008-6-17 35459 Orange Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  CDA7427  Cirsium vulgare Jack Hill 1957-7-3 Orange 0 Comment
  CAS-BOT-BC172422  Clarkia bottae Carl B. Wolf 1932-7-2 3825 Orange Carbon Canyuon, 1/8 mi. below La Vida Springs 213 Comment
  OBI5935  Clarkia bottae Carl B. Wolf 1932-7-2 3825 Orange Carbon Cyn, 1/8 mi below La Vida Springs 213 Comment
  RSA73302  Clarkia bottae F. W. Peirson 1924-5-31 4661 Orange Laguna Canyon, near Laguna Beach. 61 Comment
  UCR210037  Clarkia bottae R. E. Riefner Jr. 2000-6-30 20- 597 Orange Santa Ana Mountains, North Ranch Policy Plan Area, N Fremont Canyon at Donaldson Ranch, adjacent to powerline crossing on W fork of Fremont Cyn drainage 427 Comment
  UCSB48213  Clarkia bottae Roberts, Fred 1981-5-3 Orange Santa Ana Mtns; Hot Springs Canyon; 1.1km NNE San Juan Guard Station; near base of San Juan Trail 264 Comment
  CAS-BOT-BC172374  Clarkia purpurea subsp. viminea L. R. Abrams 1901-6-10 1796 Orange Santiago Peak Trail Comment
  UCR209667  Claytonia parviflora subsp. parviflora Fred M. Roberts 2008-4-16 6905 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  UC1178495  Clematis lasiantha Peter Kamb 1948-6-19 1106 a Orange Santa Ana Mts., Holy Jim Canyon 609 Comment
  RSA297  Clematis ligusticifolia J. T. Howell 1927-4-13 622 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC92807  Clematis pauciflora Munz; Street; Williams 1919-5-3 2651 Orange Santa Ana River Canon [Canyon]. Comment
  RSA329669  Cleome isomeris G. D. Wallace 1966-4-16 479 Orange Along Hwy 101 about 10 miles north of Camp Pendleton. Comment
  CAS-BOT-BC180992  Cneoridium dumosum Cecil Hart 1928-5-27 s.n. Orange Laguna Beach Comment
  RSA449086  Cneoridium dumosum Albert J. Perkins 1921-3-15 s.n. Orange Laguna Heights, hill S.W. of oil well. Comment
  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
  UCR86994  Collinsia concolor B. G. Pitzer, Stu Hemstreet 1992-5-27 1954 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, along Forest Service Road 3S04 to Blue Jay Group Campground, off Hwy 74 (Ortega Hwy), c. 2 mi west of El Cariso Campground 765 Comment
  UCR133708  Collinsia heterophylla N. C. Cooper 1944-6-4 1361 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, lower camp ground '1500 ft. 396 Comment
Read comments
Apr 24 2011
  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
  HSC21476  Conium maculatum S. M Clapp 1966-4-10 40 Orange Just S of Brea Canyon Rd., 1 mi N of Brea, Union Oil property 61 Comment
  RSA751187  Conium maculatum A. C. Sanders, Fred M. Roberts 2008-6-17 35455 Orange Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  UCSB48373  Conium maculatum Roberts, Fred 1982-5-22 Orange Dana Point: jct. of Stone Hill Dr. & Selva Rd.; 1.0 km ESE Dana Hills High School; 1.7 km SW Marco Forster Junior High School 40 Comment
  POM295610  Conium maculatum Lyman Benson 1946-7-8 12105 Orange Corona del Mar. 15 Comment
  RSA357138  Conium maculatum R. F. Thorne 1975-4-6 45575 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  RSA0013914  Convolvulus arvensis Fred M. Roberts 2012-5-10 7582 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  RSA603362  Convolvulus arvensis Scott D. White 1997-6-12 5346 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15 / Hwy 74 junction. 46 Comment
  UCR138387  Convolvulus arvensis Scott D. White, Brian Leatherman 1997-6-12 5346 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
  UCR193278  Conyza bonariensis A. C. Sanders, Fred M. Roberts 2008-6-17 35512 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA93224  Conyza bonariensis F. W. Peirson 1924-8-29 5063 Orange Santa Ana Comment
  RSA718959  Conyza canadensis Fred M. Roberts, Robert L. Allen 2006-10-8 6421 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
  UCR220081  Conyza coulteri Dick Newell, Don Millar 2010-9-15 039 Orange South Coast, Newport Beach, Back Bay Science Center, Shellmaker Island, 0.08 mi. west of Back Bay Drive 3 Comment
  RSA0045606  Cordylanthus pilosus R. H. McArthur 1934-5-19 s.n. Orange Live oak Canyon. Comment
  CAS-BOT-BC287838  Coreopsis californica Marcus E. Jones 1926-3-10 s.n. Orange Near Santa Ana Canon Comment
  CDA25730  Coreopsis tinctoria A. C. Sanders, Fred M. Roberts 2008-8-7 35981 Orange Peninsular Range; Santa Ana Mountains.; Lower Weir Canyon, at narrow gorge c. 0.6 mile above mouth of canyon at Irvine Ranch gate. Comment
  CAS-BOT-BC101294  Corethrogyne filaginifolia John Thomas Howell 1927-9-24 3106 Orange on n. s. of Santa Ana [Canon] Canyon 152 Comment
  JEPS17159  Corethrogyne filaginifolia Rimo Bacigalupi 1957-4-3 5787 -A Orange 6 mi s of Irvine; Us Highway 101 Comment
  RSA743452  Corethrogyne filaginifolia var. virgata Fred M. Roberts 2008-7-10 7072 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
  SEINET2049834 Image available Cotula australis J. Harry Lehr 1973-4-21 910 Orange East Santa Anna Street west of State College Blvd, Anaheim CA Comment
  RSA651110  Cotula australis Bob Edwards 1948-5-14 s.n. Orange Found on vacant lot in Orange. 59 Comment
  UC1543192  Cotula coronopifolia Donald G. Nelson 1935-3-30 197 Orange near mouth Brea Canyon (n of Brea, near Portolas Camp) Comment
  UCD130917  Cotula coronopifolia H. Wahlberg 1923-3-13 s.n. Orange Santa Ana. Comment
  UCR100452  Cotula coronopifolia B. G. Pitzer 1996-4-30 2774 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR207795  Cotula coronopifolia O. F. Clarke 2004-4-5 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCD130912  Cotula coronopifolia Ronni Stachelek; Bob Anderson 1995-3-23 50 Orange Newport Beach, Upper Newport Bay, Back Bay Drive, ca. 150 m. north of San Joaquin Drive. Comment
  RSA728656  Cotula hispida R. E. Riefner 2006-2-12 06 -26 Orange City of San Clemente, N ca. 0.5 mi. along the beach from Ave. Del Mar/ San Clemente area. 3 Comment
  SD234933  Cotyledon orbiculata R. E. Riefner Jr. 2006-8-25 06 407 Orange South Coast: Dana Point Harbor Dr. at Ensenada Pl. 13 Comment
  UCR222624  Cotyledon orbiculata T. B. Salvato 2010-10-27 5107 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
  SD134612  Cotyledon orbiculata var. oblonga Reid Moran 1992-8-31 31093 Orange South slope above 1800 Coast Highway, Newport Beach. 14 Comment
  IRVC25399  Crassula connata Fred M. Roberts 1987-4-3 3338 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
  IRVC25468  Crassula connata Fred M. Roberts 1987-4-21 3379 Orange Aliso Creek, Aliso Creek Bike Trail, 3.0km ENE Moulton Peak, Aliso Viejo 73 Comment
  UCR258351  Cressa truxillensis Fred M. Roberts 2014-4-21 7848 Orange South Coast, SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin 113 Comment
  POM260477  Cressa truxillensis Ella Carter 1941-08 2 Orange Near coast highway, Newport Beach. Comment
  RSA5822  Cressa truxillensis C. B. Wolf 1932-6-28 3800 Orange 25 ft. west and 600 ft. north of SE corner of SE 1/4 sect 29. 9 Comment
  JEPS31071  Crocanthemum scoparium var. vulgare J. C. Aven 1931-6-30 Orange hill near Modjeska Home (10 mi e of El Toro) Comment
  HSC7965  Croton californicus J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  IRVC21762  Croton californicus Fred M. Roberts 1984-11-27 1436 Orange Novia St. bridge over San Juan Creek, 0.6km S Bench Mark 133, San Juan Capistrano 31 Comment
  LA204938  Croton californicus J. A. Ewan; 1932-7-28 7704 Orange Corona del Mar Comment
  POM201862  Croton californicus L. M. Booth 1932-5-26 1123 Orange Newport Bay Comment
  RSA734600  Croton californicus A. C. Sanders, Fred M. Roberts 2008-5-6 35229 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  UCR220965  Croton californicus Dick Newell, Don Millar 2010-4-27 027 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Ridge Rd. at junction of Markel Spur Rd., overlooking The Sinks 427 Comment
  UCR191234  Croton setiger A. C. Sanders, Fred M. Roberts 2008-4-22 34984 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
  UCR228773  Croton setiger Dick Newell, Don Millar 2011-5-24 166 Orange Peninsular Range; Santa Ana Mtns., above Outdoor Education Center on MWD service road, 1.6 miles NW (311 deg. ) of Irvine Lake dam 244 Comment
  POM146229  Cryptantha clevelandii var. florosa F. M. Reed 1926-4-14 5301 Orange Bluffs along sea at Arch Beach. 46 Comment
  IRVC255  Cryptantha intermedia C. Hinesly Orange Trabuco Canyon Santa Ana Mountains Comment
  RSA687518  Cryptantha intermedia Fred M. Roberts, D. E. Bramlet 2003-4-10 5651 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, ridge between Cristianitos Cyn. and Segunda Deshecha Canada, 1.54km W Gato Gate and 1.59km NW Edison substation. 262 Comment
  UCR223426  Cryptantha intermedia Dick Newell, Don Millar 2011-2-15 058 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  UCSB47630  Cryptantha intermedia Roberts, Jr., Fred 1980-5-3 Orange Santa Ana Mtns.: 1.0 km. SE Blue Jay Campground; 2.8 km. SW El Cariso Guard Station 1010 Comment
  RSA0051392  Cryptantha intermedia var. intermedia Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49663 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA539399  Cryptantha microstachys Fred M. Roberts, Carol A. Roberts 1988-6-2 4038 Orange Santa Ana Mtns: Silverado Canyon, Maple Springs Truck Trail, 4.3km above gate. 1.0km WSW Bald Peak. 817 Comment
  UCR47757  Cryptantha microstachys F. R. Fosberg 1930-6-15 S- 02937 Orange Santa Ana Mtns, Santiago Canyon, near Modjeska's home. Comment
  RSA0079566  Cryptantha muricata var. jonesii Fred M. Roberts, Carol A. Roberts, Kirsten Winter 1995-5-6 4939 Orange Santa Ana Mountains: Ridge between Hot Springs Canyon and Viejo Canyon, San Juan Trail, 3.4 km WNW lower San Juan Picnic Ground. 546 Comment
  IRVC18320  Cucurbita foetidissima J. W. Johnson 1976-8-2 Orange Upper [Newport] Bay. Newport Beach Comment
  JEPS42640  Cucurbita foetidissima L. M. Booth 1932-6-29 1227 Orange Newport Bay Comment
  CAS-BOT-BC80575  Cupressus forbesii John Thomas Howell 1927-8-10 2983 A Orange upper [Claymine] Clay Mine Canyon, n. Santa Ana Mts. 609 Comment
  JEPS39796  Cupressus forbesii John Thomas Howell 1927-8-10 2983 a Orange Claymire Canyon Santa Ana Mts., Sierra Peak, Claymire Canyon 609 Comment
  RSA644959  Cupressus forbesii Richard E. Riefner 2000-1-18 20 -101 Orange NCCP North Ranch Policy Plan Area: Main Divide Road; top of Gypsum Canyon. 518 Comment
  RSA7200  Cupressus forbesii B. D. Stark 1933-3-17 4532 -D Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  UC1061653  Cupressus forbesii Howell Orange Santa Anna Mountains Comment
  UC219097  Cupressus forbesii Munz and Johnston 1922-5-18 5566 Orange second large canyon s Orange County line; Santa Ana Mts., Santa Ana River Canyon 304 Comment
  UCR112935  Cupressus forbesii R. E. Riefner Jr. 2000-1-18 20- 101 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Main Divide Road, top of Gypsum Canyon at Windy Ridge 518 Comment
  RSA0014076  Cuscuta californica Fred M. Roberts 2008-5-27 7004 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
  RSA409705  Cuscuta californica F. R. Fosberg 1931-6-21 5143 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA570  Cuscuta californica J. T. Howell 1927-6-3 24 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA409707  Cuscuta californica George Price 1967-5-17 s.n. Orange O'Neil Park Comment
  SEINET269588  Cuscuta californica O. F. Clarke 1994-6-17 Orange Laguna Canyon. Growing wild. Parasite on Erigonum fasciculatum. Comment
  JEPS43026  Cuscuta salina L. M. Booth 1932-5-24 1096 Orange Newport Bay Comment
  RSA394864  Cuscuta salina Anstruther Davidson 1907-9-1 1780 a Orange Newport Comment
  CDA25796  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35320 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, along fire line/bulldozer cut, c. 1.5 miles east of Walnut Canyon Reservoir. Comment
  RSA0014999  Cuscuta subinclusa Fred M. Roberts, D. E. Bramlet 2008-5-13 6958 Orange Lomas de Santiago: Loma Ridge, north end, west of Sheriff Rd., 1.4 km SE Peters Canyon Reservoir dam. Irvine Ranch Conservancy. 263 Comment
  SD43529  Cuscuta subinclusa Philip A. Munz 1946-10-2 11555 Orange Santa Ana River bottom, Rancho Santa Ana. Comment
  UCR193783  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts 2008-7-3 35679 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA0036642  Cuscuta subinclusa Robt. Allen 2007-8-11 s.n. Orange Peninsular Ranges; Santa Ana Mountains region: Western arm of Modjeska Peak, at junction of North Main Divide Road and road spur to the summit. 1531 Comment
  UCSB52888  Cuscuta subinclusa Roberts, Fred 1983-9-26 Orange Santa Ana Mtns.: Lion Canyon, Chiquito Basin Trail; 3.5 km. NNE Lower San Juan Picnic Ground; 4.2 km. SSE Los Pinos Peak 815 Comment
  JEPS59790  Cycloloma atriplicifolium Lawrence M. Booth 1932-7-30 1343 Orange near Huntington Beach; Santa Ana River channel Comment
  UCSB43497  Cynara cardunculus Challain, J. 1982-5-16 Orange At top of Culver Avenue, near Turtlerock Road; City of Irvine 63 Comment
  CAS-BOT-BC190296  Cynodon dactylon John Thomas Howell 1927-7-27 2849 Orange Santa Ana River bottom, Santa Ana Canon [Canyon]. 152 Comment
  RSA696696  Cynodon dactylon Keith E. Hoffmaster 1926-12-18 s.n. Orange Santa Ana, San Juan Capistrano, San Onofre, other places Comment
  RSA5809  Cynodon dactylon C. B. Wolf 1932-6-28 3773 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA650406  Cynodon dactylon Norman Willis 1948-2-8 s.n. Orange East of Orange. 61 Comment
  RSA0026258  Cyperus eragrostis Fred M. Roberts 2013-6-12 7792 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
  RSA710406  Cyperus eragrostis Fred M. Roberts 2005-10-3 6294 Orange San Juan Capistrano: San Juan Creek wash, La Novia Road Bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  UC729936  Cyperus eragrostis Carl B. Wolf 1932-6-13 3721 Orange Malvern & Nicholas Aves. Fullerton 53 Comment
  SEINET7581659 Image available Cyperus eragrostis Sue A. Thompson, John E. Rawlins 1988-8-27 5256 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74. 370 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
  UCR193771  Cyperus involucratus A. C. Sanders, Fred M. Roberts 2008-7-3 35702 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
  UCSB57539  Cyperus involucratus Roberts, Fred 1984-2-18 Orange Casper's Regional Park; San Juan Canyon, Hwy.74, 4.2 km. NNE Visitor Center along San Juan Creek; 3.1 km. SW San Juan Guard Station 160 Comment
  CAS-BOT-BC114245  Cyperus laevigatus Carl B. Wolf 1932-7-2 3812 Orange Carbon Canyon, 1/8 mi below La Vida Springs. 213 Comment
  SD28115  Cyperus laevigatus Carl B. Wolf 1932-7-2 3814 Orange Carbon Canyon ; 0.125 mile below La Vida Springs; edge of small watercourse. 213 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
  RSA92111  Cyperus odoratus F. W. Peirson 1924-10-19 2532 Orange Wintersberg Comment
  RSA0106896  Cyrtomium falcatum R. E. Riefner Jr. 2012-2-2 12 -19 Orange City of Dana Point, cliff and rocky intertidal zone, N 0.2 mi of Salt Creek Lagoon. 8 Comment
  SD260849  Cyrtomium falcatum R. E. Jr. Riefner 2012-2-2 12 19 Orange City of Dana Point, cliff and rocky intertidal area N 0.2 mi of Salt Creek lagoon. 9 Comment
  UCD169090  Cyrtomium falcatum R. E. Reifner Jr. 2011-7-1 11- 83 Orange City of Newport Beach, beach area west of the end of Cameo Shores Road; south ca. 1 mi from Poppy Avenue. 1 Comment
  UCR230584  Cyrtomium falcatum R. E. Riefner Jr. 2011-7-1 11- 83 Orange South Coast, city of Newport Beach, beach area west of the end of Cameo Shores Road, south c. 1 mi from Poppy Avenue 2 Comment
  SD28072  Dactylis glomerata Carl B. Wolf 1932-6-13 3715 Orange Fullerton, Rose Drive 53 Comment
  RSA603365  Datisca glomerata Scott D. White, B. Leatherman 1997-6-12 5341 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15 / Hwy 74 junction. 46 Comment
  UCR138399  Datisca glomerata Scott D. White, Brian Leatherman 1997-6-12 5341 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
  UC536952  Datura stramonium Lawrence M. Booth 1932-7-30 1345 Orange Santa Ana River Comment
  RSA743455  Datura wrightii Fred M. Roberts 2008-7-10 7075 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  POM201711  Datura wrightii L. M. Booth 1932-7-30 1337 Orange Santa Ana River, 2 miles from ocean Comment
  JEPS12251  Daucus pusillus Lawrence M. Booth 1932-5-12 1033 Orange Newport Bay Comment
  RSA542444  Daucus pusillus Fred M. Roberts, Kathy Keane 1988-5-26 4004 Orange Rancho Mission Viejo: tributary to Trampas canyon, along Christianitos rd., 2.4 km ESE Viejo Survey mark. 128 Comment
  RSA699549  Daucus pusillus L. C. Hull 1934-8-4 s.n. Orange Laguna Hills Comment
  UCR217459  Daucus pusillus Mark A. Elvin 2003-3-30 2383 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  UCR223961  Daucus pusillus Fred M. Roberts 2008-4-9 6857 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Outlook 2, 0.7 km west of Marine Institute, Dana Point Harbor 52 Comment
  JEPS38341  Deinandra fasciculata Lawrence M. Booth 1932-5-12 1038 Orange Newport Bay Comment
  RSA747715  Deinandra fasciculata Fred M. Roberts 2008-7-10 7064 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UC75961  Deinandra fasciculata E. A. Zumbro 1902-1-1 388 Orange Comment
  RSA94100  Deinandra fasciculata F. W. Peirson 1924-8-29 5064 Orange Santa Ana Comment
  UCSB48381  Deinandra fasciculata Roberts, Fred 1982-5-22 Orange Laguna Niguel; Niguel Hill, just N of end of Pacific Island Dr., 1.6 km. ENE Aliso Peak 295 Comment
  OBI74758  Deinandra paniculata Unknown 2003-8-31 03 -337 Orange San Clemente State Beach, mima mound field in SW corner of park 27 Comment
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Feb 23 2018
  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
  SEINET8043519 Image available Deinandra paniculata R. E. Riefner Jr. 2008-1 08 -100 Orange Ladera Ranch, Cecil Pasture at Jerome Rd. 157 Comment
  UCR146881  Deinandra paniculata Kathleen Stockwell 1999-5-30 s.n. Orange South Coast, north of Cristianitos Road, San Clemente 61 Comment
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Jan 8 2013
  UCR254221  Deinandra paniculata R. E. Riefner Jr. 2008-5-19 08- 100 Orange Ladera Ranch, Cecil Pasture at Jerome Road 157 Comment
  UCR267218  Deinandra paniculata Fred M. Roberts 2014-7-25 7893 Orange South Coastal Plain, SAN JOAQUIN HILLS: Laguna Canyon, just west of Laguna Lake 1, 4.8 km ENE Signal Hill, Laguna Coast Wilderness Park 116 Comment
  UC729868  Delphinium cardinale Carl B. Wolf 1932-7-2 3821 Orange 1/8 mi below La Vida Springs; Carbon Canyon 213 Comment
  RSA69411  Delphinium parryi F. W. Peirson 1925-4-11 5745 Orange 5 miles south of Laguna Beach. Comment
  UCR220962  Delphinium parryi Dick Newell, Don Millar, Ashley Nelson 2010-6-8 24 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Canyon Rd. at junction with Dripping Springs Rd., 1/2 mile SW of Silverado Rd. and Santiago Rd. 305 Comment
  CAS-BOT-BC121417  Delphinium parryi subsp. parryi P. C. Everett 1935-5-19 6871 Orange Santa Ana Mtns., Baker Canyon, West Ladd truck trail 304 Comment
  UC1178492  Delphinium parryi subsp. parryi Peter Kamb 1948-6-19 1098 Orange Holy Jim Canyon Santa Ana Mts. 609 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
  RSA652150  Dendromecon rigida J. Bruce Smiley 1940-4-28 s.n. Orange Santa Ana Canyon (mouth). 701 Comment
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Nov 6 2013
  RSA785384  Dendromecon rigida Keith E. Hoffmaster 1932-4-17 401 Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  UCSB41860  Dendromecon rigida Muth, Al 1971-3-29 Orange Harding Road, 10 mi. E. Tucker Wildlife Sanctuary 914 Comment
  RSA171106  Dendromecon rigida subsp. rigida Robert F. Thorne 1963-7-26 32833 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA790667  Dendromecon rigida subsp. rigida Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49702 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  CAS-BOT-BC43188  Descurainia pinnata subsp. brachycarpa Helen D. Geis 1902-1-1 530 Orange Santiago Creek. Comment
  CAS-BOT-BC402216  Dicentra chrysantha P. C. Everett 1935-5-19 6870 Orange Santa Ana Mts., Baker Canyon, West Ladd Truck Trail 304 Comment
  RSA433549  Dicentra chrysantha M. B. Dunkle 1934-6-18 3974 Orange Upper San Juan Canyon. 610 Comment
  UCR223432  Dichelostemma capitatum Dick Newell, Don Millar 2011-2-8 054 Orange Peninsular Range; Santa Ana Mtns., MWD road overlooking Boy Scout Camp, just east of outdoor education property, 1.5 mi. NW (312 deg. ) of Irvine Lake dam 257 Comment
  RSA114378  Dichelostemma pulchellum var. pulchellum G. R. Campbell 1955-12-6 21492 Orange Nursery Seedlings at Botanic Garden, Prop. No. 6310, from seed coll. by E. K. Balls, May 28, 1949, from plants native to old Botanic Garden site, Santa Ana Canyon 183 Comment
  UCR37799  Dichondra occidentalis Steve Boyd 1981-5-13 s.n. Orange South Coast, Pelican Hill, Irvine Ranch Property, San Joaquin Hills south of Corona del Mar 218 Comment
  SEINET10719725  Dicksonia David B. Dunn 1971-8-13 Dunn 18125 Orange Cultivated plants vicinity of Laguna Beach. Comment
  RSA0019265  Dimorphotheca ecklonis Fred M. Roberts 2004-6-16 6054 Orange San Joaquin Hills: Temple Hill, slopes above Hobo Cyn., adj. to 591 Balboa Ave.; 1.0km NNE Golf Island Survey Mark. 175 Comment
  SD248332  Dimorphotheca fruticosa R. E. Riefner Jr. 2011-7-1 11 79 Orange City of Newport Beach, beach area west of Shorecliff Road and Cameo Shores Road. 2 Comment
  RSA0045518  Diplacus longiflorus Kenneth Beard 1934-04 s.n. Orange Mts. along Ortega Highway; north of San Juan Hot Springs. CP5. 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
  UC1215212  Diplotaxis muralis Peter H. Raven 1962-3-27 16992 Orange near Anaheim (Rancho Santa Ana); Rancho Santa Ana 182 Comment
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Mar 18 2011
  POM123  Diplotaxis tenuifolia I. M. Johnston 1918-5-4 1927 Orange Santa Ana, at roadside. Comment
  CAS-BOT-BC195673  Distichlis spicata John Thomas Howell 1927-6-17 2552 Orange Hills on north side of Santa Ana Canon [Canyon] 152 Comment
  IRVC29710  Distichlis spicata Barry S. Nerhus, Mark A. Elvin 2006-11-4 15 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  SD28114  Distichlis spicata Carl B. Wolf 1932-7-2 3815 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  UCR193038  Distichlis spicata A. C. Sanders, Fred M. Roberts 2008-6-17 35495 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  UCR207555  Distichlis spicata O. F. Clarke 2004-11-23 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCSB47954  Distichlis spicata Roberts, D. 1980-5-4 Orange North end of Camino Capistrano Rd; 2nd telephone pole from the end 30 Comment
  UCSB70754  Distichlis spicata Ferren, Wayne; Roberts, Fred; Marsh 1981-9-25 Orange Seal Beach Ntnl Wildlife Refuge; NW of Huntington Harbor; along Rt. 1 bayside; N end of bridge at Anaheim Bay; 1 mi E of Seal Beach; Margin of salt marsh below hwy, upper edge 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
  RSA699298  Dodecatheon clevelandii Jeanne Paxton 1934-2-25 s.n. Orange Sugar Loaf Canyon, Arch Beach Comment
  UCSB52469  Draba cuneifolia Roberts, Fred; Marsh, K. 1983-2-25 Orange Laguna Beach, Goff Ridge, southern Temple Hill, 0.9 km NNE Goff Island 180 Comment
  IRVC8762  Draba cuneifolia var. integrifolia Charles W. Sexton 1965-2-12 Orange Newport Beach. Southern Coastal Comment
  POM626  Drymocallis glandulosa var. wrangelliana I. M. Johnston 1918-4-27 1893 Orange Laguna Beach, San Joaquin Hill 15 Comment
  IRVC122  Dryopteris arguta A. S. Boughey 121 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  IRVC128  Dryopteris arguta C. Thompson 1965-4-15 Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA124716  Dryopteris arguta E. K. Balls, Percy C. Everett 1957-11-25 22839 Orange Upper Trabuco Canyon, 2.9 mi. ne. from entrance to Holy Jim canyon, 1097 Comment
  RSA698474  Dryopteris arguta R. H. McArthur 1934-4-14 s.n. Orange Laguna Canyon. Hillside. Comment
  IRVC14121  Dryopteris arguta K. Marvosh 1966-4-6 s.n. Orange Silverado Canyon, 0.5mi S Maple Springs Rd. in Spruce Canyon; dry, rocky canyon slope. Santa Ana Mountains Comment
  RSA659892  Dudleya Karl Price 1988-5-21 43 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  UC1015141  Dudleya Reid Moran 1949-5-28 3257 Orange Alsio Canyon Laguna Beach Comment
  RSA423498A  Dudleya cymosa F. R. Fosberg 1921-6-21 748 Orange Silverado Canyon, Santa Ana Mts. Comment
  POM48463  Dudleya edulis F. W. Peirson 1924-5-31 4674 Orange 5 miles southeast of Laguna Beach. Comment
  RSA0063395  Dudleya edulis Fred M. Roberts, David Bramlet 2003-6-6 5909 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
  RSA423526  Dudleya edulis M. B. Dunkle 1923-06 5374 Orange San Juan Canyon. Comment
  POM180505  Dudleya lanceolata L. R. Abrams 1917-6-25 s.n. Orange Balboa. Comment
  POM219195  Dudleya lanceolata L. C. Wheeler 1932-6-25 862 Orange Newport Bay. 6 Comment
  UCR150916  Dudleya lanceolata Valerie Soza, LeRoy Gross 1999-6-8 504 Orange Santa Ana Mountains, Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  UCSB37819  Dudleya lanceolata Roos, John 1965-6-16 Orange Dana Point Comment
  CAS-BOT-BC411410  Dudleya lanceolata Ethel H. Campbell 1921-5-1 2 Orange Laguna Beach Comment
  RSA552936  Dudleya multicaulis Fred M. Roberts 1989-5-7 4337 Orange Lomas De Santiago: 1.8km W Santiogo Reservoir Spilway, 4.0 km SW Sierra Peak. 213 Comment
  UCR193275  Dudleya multicaulis A. C. Sanders, Fred M. Roberts 2008-6-17 35509 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA345  Dudleya pulverulenta J. T. Howell 1927-7-16 416 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA534167  Dudleya stolonifera Reid V. Moran 1977-6-13 24230 Orange Willow Canyon, tributary of Laguna Canyon. 125 Comment
  SD129960  Dudleya stolonifera Reid Moran 1977-6-13 24230 Orange Willow Canyon, tributary of Laguna Canyon. 124 Comment
  UC1015150  Dudleya stolonifera Reid Moran 1950-5-24 3411 Orange 1.5 mi above canyon mouth (1.7 mi below Toro Rd junction); Laguna Canyon 243 Comment
  CAS-BOT-BC109766  Dudleya viscida Carl B. Wolf 1936-6-17 7948 Orange Santa Ana Mountains, along Ortega Highway, 0.6 mile below San Juan Hot Springs. 182 Comment
  UCR174020  Dudleya viscida A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33053 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
  UCD98691  Dysphania ambrosioides Ira L. Wiggins 1965-11-5 20319 Orange Edge of orange grove near corner of Dowling St. and Crowther Ave., Placentia. Comment
  RSA0045610  Echidiocarya californica Keith E. Hoffmaster 1935-2-9 841 Orange Santa Ana Mts., near El Toro. Comment
  CAS-BOT-BC197175  Echinochloa crus-galli Carl B. Wolf 1932-6-13 3720 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  RSA21041  Echinochloa crus-galli E. R. Johnson 1938-8-22 9451 Orange Rancho Santa Ana, Santa Ana Canyon; South of Picnic Grounds 122 Comment
  SD218250  Echinochloa crus-galli Mark A. Elvin 2004-5-2 3426 Orange Irvine; San Joaquin Freshwater Marsh near Campus and University Drs. 3 Comment
  SEINET239014 Image available Echinochloa crus-galli Beecher Crampton 1965-10-27 7586 Orange UC-South Coast F.S. Comment
  UCD60914  Echinochloa crus-galli Ira L. Wiggins 1965-11-7 20356 Orange Vacant lot between State College Blvd. and Troy High School campus, Fullerton. Comment
  RSA184153  Echinochloa crus-galli I. L. Wiggins 1965-9-26 20262 Orange Fullerton. Comment
  RSA713568  Echinochloa crus-galli R. E. Riefner Jr. 2005-7-9 5 -552 Orange City of Huntington Beach, Huntington Central Park, Goldenwest St. near Slater Ave. 2 Comment
  UCR207803  Echinochloa crus-pavonis O. F. Clarke 2004-5-29 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  CAS-BOT-BC445609  Echinodorus berteroi Le Roy Abrams 1901-6-1 1777 Orange Laguna 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
  UCR19807  Echinodorus berteroi F. M. Reed 1924-8-15 4963 Orange South Coast, Laguna Lake Beds, Laguna Canyon Comment
  POM1010  Echinodorus cordifolius D. L. Crawford 1916-7-27 s.n. Orange Laguna canyon Comment
  RSA731651  Ehrharta erecta Fred M. Roberts 2007-10-29 6628 Orange Laguna Beach: Temple Hill, Nyes Place, c.a. 0.2 km S Moulton Meadows Park. 232 Comment
  UCR240173  Ehrharta erecta R. E. Riefner Jr. 2012-2-1 12- 15 Orange South Coast, city of Dana Point, Dana Point Harbor, vicinity of Puerto Pl. and Dana Point Harbor Drive 2 Comment
  UCR266405  Ehrharta erecta D. E. Bramlet 2010-3-3 s.n. Orange 1691 Mesa Dr., Newport Beach 16 Comment
  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
  UC552355  Elatine brachysperma H. H. Tracy 1935-4-10 Orange n Cotsa Mesa Comment
  RSA750923  Eleocharis montevidensis A. C. Sanders, Fred M. Roberts 2008-7-3 35701 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UCSB47988  Eleocharis palustris Roberts, Jr., Fred 1980-6-25 Orange Santa Ana Mtns., San Juan Canyon, 2.4 km. ENE San Juan Guard Station; 0.3 km. WSW Bench Mark 1100 290 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
  RSA573297  Eleocharis radicans Steve Boyd, Timothy S. Ross 1994-9-14 8354 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
  RSA752648  Eleocharis radicans A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33024 Orange San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 366 Comment
  RSA723479  Eleusine coracana subsp. africana R. E. Riefner 2006-10-4 6 -477 Orange City of Huntington Beach, along Slater Ave. near Goldenwest St. 11 Comment
  RSA743555  Eleusine coracana subsp. africana R. E. Riefner 2004-8-28 4 -407 Orange City of Fountain Valley, Newland Ave. at Edinger St. 14 Comment
  RSA5828  Elymus X gouldii C. B. Wolf 1932-6-28 3794 Orange Bryant Ranch, north boundary of field. 9 Comment
  UCR215297  Elymus glaucus var. glaucus Fred M. Roberts 2008-5-7 6940 Orange Lomas de Santiago, Limestone Ridge between Dripping Spring and Limestone Canyon, 3.5 km NW of Bolero Lookout and 1.7 km east of Bee Peak. Irvine Ranch Conservancy 481 Comment
  RSA679226  Elymus multisetus Fred M. Roberts 2003-6-25 5944 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  UCR193379  Elymus triticoides A. C. Sanders, Mitch Provance 2008-5-20 35396 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
  IRVC14677  Encelia californica A. S. Boughey 1968-7-16 423 Orange road to Signal Peak. San Joaquin Hills Comment
  POM202371  Encelia californica L. M. Booth 1932-5-12 1029 Orange Newport Bay. Comment
  POM4950  Encelia californica P. A. Munz 1918-5-4 2225 Orange Laguna Beach Comment
  RSA585052  Encelia californica D. Atwood 1993-3-27 17701 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  UCSB48067  Encelia californica Fritzke, S.; Roberts, Jr., Fred 1982-4-3 Orange Dana Point Headlands; along Scenic Dr., near jct. with Cove Rd., 0.4 km. W Dana Point Harbor; 0.7 km. S Richard Henry Dana School 70 Comment
  UCR241044  Epilobium brachycarpum Robert DeRuff 2010-9-2 482 B Orange South Coast, Upper Newport Bay, Back Bay Dr. at San Joaquin Hills Rd. 4 Comment
  RSA72173  Epilobium ciliatum subsp. ciliatum F. W. Peirson 1924-5-31 4654 Orange Laguna Canyon, near Laguna Beach. 107 Comment
  UCR175445  Epipactis gigantea Mark A. Elvin, A. C. Sanders 2005-9-2 4495 Orange Peninsular Ranges, Santa Ana Mtns: Mouth of Lion Canyon, just upstream from Lower San Juan Campground 457 Comment
  SD245191  Epipactis gigantea R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49608 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  IRVC14871  Equisetum laevigatum Gordon A. Marsh, K. G. Marsh 1976-7-8 s.n. Orange Santa Ana mtns: 2.7 mi e of San Juan Guard Station on CA 74. Peninsular Ranges Comment
  SEINET3386349 Image available Eragrostis A. C. Sanders, Fred M. Roberts 2008-1 36091 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge. Comment
  UCD63541  Eragrostis mexicana subsp. virescens Frank W. Gould 1944-6-25 2362 Orange Tournat Ranch, Garden Grove. Comment
  JEPS52502  Eremocarpus setiger John Thomas Howell 1927-9-24 3108 Orange Rancho Santa Ana Santa Ana Canyon 152 Comment
  RSA430  Eremocarpus setiger J. T. Howell 1927-9-24 742 Orange Santa Ana Botany Garden 152 Comment
  RSA697580  Eremocarpus setiger Minor Warne 1934-5-19 s.n. Orange Roadside Forks Trabuco and El Toro Rd. Comment
  IRVC17814  Eremocarpus setigerus Gordon A. Marsh 1980-6-1 Orange San Joaquin Freshwater Marsh, southwest side; pond margin. Irvine Comment
  UCSB48005  Eriastrum sapphirinum subsp. dasyanthum Roberts, Fred 1980-6-29 Orange Santa Ana Mtns., Viejo Canyon, 0.4 km. N Calif. Rte. 74; 2.2 km. ENE San Juan Guard Station 341 Comment
  CAS-BOT-BC299500  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 2944 Orange Rancho Santa Ana, Santa Ana Canyon 207 Comment
  CHSC35339  Ericameria palmeri var. pachylepis James Henrickson 1972-10-21 8076 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. Fields near golf course. 45 Comment
  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
  UCR256886  Ericameria parishii Naomi Fraga, Duncan S. Bell, Sarah J. De Groot 2009-9-11 3157 Orange Peninsular Ranges; Santa Ana Mountains region, Blue Jay Campground 910 Comment
  RSA712944  Ericameria parishii var. parishii Fred M. Roberts, Robert L. Allen 2005-10-15 6309 Orange Upper Long Canyon along Main Divide Road, 2.4km E Los Pinos Peak and 1.0km NE Falcon Group Camp. 1020 Comment
  UC284875  Ericameria parishii var. parishii P. A. Munz 1923-9-7 7767 Orange from Trabuco Canyon to Santiago Peak; Santa Ana Mts 914 Comment
  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
  RSA0013964  Erigeron foliosus var. foliosus Fred M. Roberts, David E. Bramlet 2008-5-13 6956 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  POM12994A  Eriodictyon crassifolium P. A. Munz, I. M. Johnston 1921-5-18 5316 Orange Santa Ana River Canyon. 244 Comment
  RSA0045584  Eriodictyon crassifolium Ken Eastman 1932-5-8 s.n. Orange Saddle Back Comment
  RSA731762  Eriogonum elongatum Fred M. Roberts, Sandy Leatherman 2007-11-9 6644 Orange San Juan Canyon along San Juan Creek. 0.2 km E community of San Juan Hot Springs. 222 Comment
  RSA7477  Eriogonum elongatum Carl B. Wolf 1933-8-24 5401 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  POM293156  Eriogonum fasciculatum Lyman Benson 1946-5-13 12096 Orange Corona del Mar, Pacfic Ocean drainage area 15 Comment
  RSA0031722  Eriogonum fasciculatum Caralisa Breidenbaugh, Mark Breidenbaugh 1992-5-25 63 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  RSA669571  Eriogonum fasciculatum D. B. Boatman 1969-3-16 690316 -6 Orange 1/2 mile E crossroads Newport Blvd. and Skyline Dr. Tustin. 91 Comment
  RSA787217  Eriogonum fasciculatum J. D. Olmsted 1959-8-26 833 Orange Drainage area to Santiago Reservoir. East of Santiago Reservoir. Mouth of Black Star Canyon. 366 Comment
  SDSU6522  Eriogonum fasciculatum B. Mastro 1966-9-10 188 Orange 1 mile south of San Clemente on Hwy. 5, near Capistrano. Comment
  UCR192994  Eriogonum fasciculatum subsp. polifolium A. C. Sanders, T. B. Salvato 2008-5-13 35382 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  CAS-BOT-BC253219  Eriogonum fasciculatum var. fasciculatum D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach Comment
  RSA688981  Eriogonum fasciculatum var. fasciculatum Fred M. Roberts, D. E. Bramlet 2003-4-10 5639 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  UC536912  Eriogonum fasciculatum var. fasciculatum Lawrence M. Booth 1932-7-27 1326 Orange Ocean Bluff, Corona del Mar Newport Beach, Corona del Mar Comment
  CAS-BOT-BC249948  Eriogonum fasciculatum var. foliolosum Philip A. Munz 1946-8-25 11530 Orange North of Assembly Hall, Rancho Santa Ana Botanic Garden Comment
  RSA214  Eriogonum fasciculatum var. foliolosum J. T. Howell 1927-7-24 474 Orange Santa Ana River bottom near Rancho Santa Ana. 152 Comment
  RSA759752  Eriogonum gracile A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37195 Orange Lomas de Santiago, Limestone Canyon, west of Limestone Canyon Rd. 366 Comment
  UC536903  Eriogonum gracile L. M. Booth 1932-7-29 1331 Orange Newport Lagoon Comment
  UCR210064  Eriogonum gracile A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37195 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, west of Limestone Canyon Rd. 366 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
  RSA766138  Eriogonum gracile Joseph A. Ewan 1932-7-29 7738 Orange Road around Newport Lagoon. Comment
  RSA0061164  Eriogonum nudum subsp. pauciflorum Robt. Allen 2007-8-11 s.n. Orange NW-facing slope of Santiago Peak, along Main Divide Road. 1701 Comment
  RSA7476  Eriogonum nudum var. pauciflorum Carl B. Wolf 1933-8-24 5400 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  UCD100835  Eriogonum parvifolium A. C. Sanders 1990-10-6 10179 Orange Newport Bay, Westcliff Park area on the SW end of the bay, 1 km inland of Hwy 1. 1 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
  POM49002  Eriogonum parvifolium var. parvifolium Grout, S. Grout 1904-08 s.n. Orange Laguna Beach Comment
  CAS-BOT-BC263018  Eriogonum thurberi E. R. Johnson 1933-6-22 4999 Orange Rancho Santa Ana, Santa Ana Canyon river bottom S. of Walnut Grove 121 Comment
  UC1618033  Eriogonum thurberi Donald G. Nelson 1935-6-2 365 Orange n. Brea (mouth of Brea Canyon, on Tonner lease); Brea Canyon, Tonner lease Comment
  RSA783663  Eriogonum virgatum J. D. Olmsted 1959-8-26 832 Orange Black Star Creek: Near Hidden Ranch along Black Star Canyon Road in Black Star Canyon in roadside cliffs. 671 Comment
  CAS-BOT-BC297325  Eriophyllum confertiflorum R. K. Brummitt; et al. 1998-5-23 19989 Orange Newport Beach, by marina; by harbour entrance 10 Comment
  RSA0013910  Eriophyllum confertiflorum Fred M. Roberts 2012-4-24 7523 Orange San Joaquin Hills: Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  RSA539417  Eriophyllum confertiflorum Fred M. Roberts 1988-6-10 4099 Orange Modejeska Peak, 0.8 km SW summit along crest. 1548 Comment
  RSA695678  Eriophyllum confertiflorum Minor Warne 1934-3-21 s.n Orange Limestone Canyon. Santa Ana Mts. Comment
  UCD150983  Eriophyllum confertiflorum D. S. Park 2010-4-25 28 Orange Whiting Ranch Wilderness Park, large population along trail. 224 Comment
  IRVC26745  Eriophyllum confertiflorum Mark A. Elvin 2004-6-18 3521 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC15140  Eriophyllum confertiflorum var. confertiflorum A. S. Boughey 1968-7-9 380403 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  SBBG87346  Eriophyllum confertiflorum var. confertiflorum B. Pitzer 1987-4-24 504 Orange Santa Ana River at Gypsum Cyn, ca. 0.5 mi N of St Hwy 91 112 Comment
  IRVC1395  Erodium botrys Diane Ibbetson 1965-4-3 HS 202 Orange Ortega Hwy. Southern Coastal Comment
  RSA748805  Erodium botrys G. Gust, L. Nye 2005-3-12 566 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  LA210273  Erodium botrys E. R. Johnson; 1935-3-1 6293 Orange 1 mi W of Atwood, S side of RR 91 Comment
  RSA703721  Erodium brachycarpum D. E. Bramlet 2003-3-20 3351 Orange Donna O Neill Reserve. NE corner of the reserve 183m west of Cristianitos Rd. and 1.83 km north of the E-W access road. 127 Comment
  HSC8494  Erodium cicutarium J. W. Johnson 1961-3-29 Orange Newport Beach, along upper Newport Bay Comment
  UCR100458  Erodium cicutarium B. G. Pitzer 1996-4-30 2765 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR192496  Erodium cicutarium A. C. Sanders, Fred M. Roberts 2008-3-25 34564 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA734609  Erodium moschatum Keith E. Hoffmaster 1927-2-19 413 Orange Santa Ana. Comment
  UCR267212  Eschscholzia californica Fred M. Roberts, Lee Ann Caranza 2009-4-7 7139 Orange South Coastal Region, DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor 65 Comment
  CDA5164  Eucalyptus camaldulensis D. G. Kelch 2006-12-9 6 .555 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  UCR80029  Eucalyptus camaldulensis Scott D. White 1992-10-1 956 Orange City of Brea, immediately north of Carbon Canyon Road & east of Placentia Ave. c. 1 mi (airline) S-SE of Tonner Canyon. 183 Comment
  IRVC29883  Eucalyptus camaldulensis Mark A. Elvin, D. Kelch 2006-12-9 5316 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  UCR50904  Eucalyptus tereticornis Dave Goodward 1987-4-16 4 Orange Irvine Ranch, Boy Scout Camp in Peters Canyon, east of Tustin and c. 1 mi NE of the Irvine Blvd/Myford Road intersection 122 Comment
  CDA23092  Eucalyptus utilis Mark A. Elvin, D. G. Kelch 2006-12-9 5305 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  RSA598962  Eucrypta chrysanthemifolia Scott D. White 1997-3-28 4834 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  RSA751269  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-7-16 35869 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon. 358 Comment
  UCR192089  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-5-6 35263 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UCR192463  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-3-25 34531 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR193819  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-7-16 35869 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  UC537165  Eucrypta chrysanthemifolia var. chrysanthemifolia L. M. Booth 1932-5-19 1063 Orange Newport Beach Comment
  UCD142560  Euphorbia albomarginata Ira L. Wiggins 1965-11-5 20323 Orange Near corner of Downling St. and Crowther Ave.; 1/2 mi. S of Placentia. Comment
  UCR26989  Euphorbia crenulata E. W. Lathrop 1966-4-6 6143 Orange Cleveland National Forest, Trabuco Oaks, Trabuco Canyon 396 Comment
  RSA787624  Euphorbia dictyosperma Keith E. Hoffmaster 1935-5-5 625 Orange San Juan Canyon., Santa Ana Mts. Comment
  RSA432423  Euphorbia misera Albert J. Perkins 1917-3-10 s.n. Orange Aliso Canyon Comment
  SD211597  Euphorbia misera R. E. Riefner Jr. 2008-3-24 08 62 Orange City of Dana Point, Dana Point Harbor, along Dana Point Harbor Drive at Island Way. USGS 7.5' Quad: West Basin, Dana Point 11 Comment
  SD248410  Euphorbia misera R. E. Riefner Jr. 2013-1-16 13 16 Orange City of Newort Beach, vicinity of Poppy Ave., and Ocean Blvd., coastal bluff at Little Corona Beach. 3 Comment
  SD260945  Euphorbia misera R. E. Jr. Riefner 2012-12-5 12 587 Orange City of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road. 9 Comment
  UCR240164  Euphorbia misera R. E. Riefner Jr. 2012-12-5 12- 587 Orange South Coast, city of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road 9 Comment
  IRVC1308  Euphorbia peplus E. P. Cowper 1965-3-1 Orange [Newport] Back Bay. Newport Beach Comment
  UCR103162  Euphorbia peplus Scott D. White 1997-3-28 4849 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  UCD142472  Euphorbia peplus R. Townsend 1939-12-28 152 Orange Yorba Linda. Comment
  RSA797434  Euphorbia polycarpa Keith E. Hoffmaster 1927-3-13 s.n. Orange Laguna Canyon, Santa Ana Mountains. Comment
  UCR239630  Euphorbia polycarpa var. polycarpa Fred M. Roberts 2012-4-24 7514 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  SD255148  Euphorbia supina R. F. Thorne 1977-11-21 49992 Orange Santa Ana Mountains: San Juan Canyon ca. 2.0 miles above San Juan Fire Station. Comment
  SBBG65406  Extriplex californica M. N. Ackley -May-1929 Orange Sunset Beach 8 Comment
  UCR209670  Festuca myuros var. myuros Fred M. Roberts 2008-4-16 6911 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  RSA708733  Ficus carica Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6118 Orange Caspers Wilderness Park, Hot Springs Creek in San Juan Cyn., c.a. 0.36km SSW San Juan Ranger Station, at SR 74 crossing. 197 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
  UC2046882  Ficus microcarpa R. E. Riefner Jr. 2014-8-8 14 -273 Orange City of Laguna Beach, E side of South Coast Highway near Diamond St. Comment
  UC2046885  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. 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
  UCR114389  Filago arizonica D. E. Bramlet 2000-4-17 2986 Orange Santa Ana Mtns. Region, 1.9 km west of Blind Canyon and 366 m north of Irvine Park, 31 m SW of the MWD access road 268 Comment
  RSA743373  Filago californica Fred M. Roberts 2008-4-9 6853 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  RSA773514  Filago californica Fred M. Roberts 1999-5-3 5204 Orange Lomas de Santiago: ridge between Limestone Canyon and Santiago Canyon Wash, 0.4 km SE Silverado School, and 3.9 km Bolero Lookout 351 Comment
  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
  IRVC24745  Filago californica Fred M. Roberts 1986-4-29 2821 Orange Turtle Rock, above corner of Ridgerout Dr. and Turtle Rock Dr., 1.1km SE French Hill, Irvine 141 Comment
  RSA703732  Foeniculum vulgare Fred M. Roberts, D. E. Bramlet 2004-7-30 6092 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
  CAS-BOT-BC53335  Frangula californica subsp. cuspidata Carl B. Wolf 1933-8-24 5391 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  LA207696  Frangula californica subsp. cuspidata C. B. Wolf; 1933-8-24 5391 Orange Santa Ana Mountains, summit of Santiago Peak 1731 Comment
  RSA391401  Frankenia grandifolia Joseph A. Ewan 1932-7-28 7701 Orange Corona Del Mar Comment
  RSA697030  Frankenia grandifolia Keith E. Hoffmaster 1927-6-13 s.n. Orange Near Santa Ana. Comment
  RSA697658  Frankenia grandifolia Minor Warne 1934-5-12 s.n. Orange Salt Marsh Newport Bay Comment
  CAS-BOT-BC223807  Frankenia salina Carl B. Wolf 1932-6-28 3784 Orange Bryant Ranch, edge of field on Bryant Ave. 91 Comment
  HSC8343  Frankenia salina J. W. Johnson 1961-4-2 Orange Newport Beach, along upper Newport Bay Comment
  POM293117  Frankenia salina Lyman Benson 1946-5-13 12099 Orange Corona del Mar, Pacfic Ocean drainage area 50 Comment
  SD39967  Frankenia salina Edith A. Purer 1932-8-31 4874 Orange Along Route 101. Comment
  SD82963  Frankenia salina C. Davidson 1970-7-25 1494 Orange Bolsa Chica; Signal oil field. Comment
  CAS-BOT-BC217642  Fraxinus dipetala Carl B. Wolf 1934-9-21 6755 Orange 1/2 mi. below Silverado Truck Trail, Silverado Canyon, Santa Ana Mts. 640 Comment
  CAS-BOT-BC217644  Fraxinus dipetala John Thomas Howell 1927-7-26 2844 Orange Claymine Canyon, n. Santa Ana Mts. 243 Comment
  SBBG98328  Fraxinus dipetala E. Crow 1929-4-7 287 Orange E end of Corona Skyline drive Comment
  UCR192976  Fraxinus uhdei A. C. Sanders, Fred M. Roberts 2008-6-17 35464 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA443842  Fraxinus velutina Gordon Marsh 1977-9-1 s.n. Orange Mission Viejo, Alicia Springs. Comment
  RSA0041476  Fraxinus velutina var. coriacea Fred M. Roberts, Carol A. Roberts 1988-7-5 4108 Orange Santa Ana Mts: San Juan Canyon, 0.4 km SW Lower San Juan Picnic Ground. 410 Comment
  RSA304144  Fremontodendron californicum James R. Shevock 1970-3-25 67 Orange Cleveland Nat. Forest. 518 Comment
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Oct 28 2014
  RSA751318  Fritillaria biflora A. C. Sanders, Fred M. Roberts 2008-5-6 35270 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  UCR132979  Fritillaria biflora Adrian Wolf 2000-4-15 459 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Baker Canyon Road 335 Comment
  SEINET10492275  Fuchsia hybrida David B. Dunn 1971-8-13 Dunn 18111 Orange Cultivated plants at costa mesa. Comment
  RSA184096  Fumaria parviflora I. L. Wiggins 1966-2-16 20445 a Orange Orange grove N side of Yorba Linda Blvd, near corner of Associated road, Fullerton Comment
  UCR281491  Funastrum cynanchoides var. hartwegii Mitch Provance 2017-6-9 617- 99 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  RSA700194  Galium angustifolium Stephen Bruff s.n. Orange Lemon Heights. Comment
  SEINET269587  Galium angustifolium O. F. Clarke 1994-6-17 Orange Laguna Canyon. Comment
  UCR106292  Galium angustifolium B. G. Pitzer, M. Georgiady 1997-4-5 3069 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
  UCR191003  Galium angustifolium A. C. Sanders, Fred M. Roberts 2008-4-22 35005 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
  UCR240085  Galium angustifolium Dick Newell, Judy Booth 2012-6-3 264 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Truck Trail/Silverado Canyon Rd., 1.6 miles ENE of Maple Springs Gate 741 Comment
  UCR97812  Galium angustifolium Scott D. White 1997-3-28 4850 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  SBBG119147  Galium angustifolium R. G. Marushia 2004-4-16 18 Orange El Moro Cyn, Crystal Cove State Park, Laguna Beach, S of No Name Ridge Rd in park, downhill from pullout and below closed road to park entrance 61 Comment
  POM201752  Galium angustifolium subsp. angustifolium L. M. Booth 1932-6-4 1152 Orange Newport Lagoon. Comment
  RSA609650  Galium angustifolium subsp. angustifolium R. S. Woglum 1938-5-8 1615 Orange Peninsular Ranges: Capistrano to Elsinore; Santa Ana Mountains [Orange and Riverside counties]. Comment
  UC578648  Galium angustifolium subsp. angustifolium A. Lewis May 1934 411 Orange Trabucco Canyon Elsinore Quadrangle 1219 Comment
  RSA0026260  Galium aparine Fred M. Roberts 2013-6-12 7790 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
  RSA0073656  Galium aparine Fred M. Roberts, Lee Ann Caranza 2009-4-7 7142 Orange Dana Point Headlands: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 60 Comment
  RSA588726  Galium aparine Fred M. Roberts Jr. 1990-5-7 4604 Orange Rancho Mission Viejo: Ridge south of Blind Canyon and east of Christianitos Canyon, TRW Lease Hold, 5.0 km NE Clemente Survey Marker. 152 Comment
  UCSB12531  Galium aparine Whittington, M. 1962-4-20 Orange South side of Back Newport Ba, about 250 yards south of saltworks, Newport Comment
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Aug 15 2016
  UCSB56680  Galium nuttallii subsp. nuttallii Roberts, Fred 1984-1-29 Orange Laguna Niguel: Niguel Hill, 1.1 km. ENE Aliso Peak; 2.0 Km. SW Alicia Fire Station 260 Comment
  RSA682911  Galium parisiense Scott D. White, Amanda Duchardt 2003-5-1 9160 Orange Santa Ana Mountain Foothills: Slopes above west side of Trampas Canyon. 107 Comment
  RSA734901  Galium parisiense A. C. Sanders 2008-5-28 35436 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  UC1608263  Galium parisiense Steve Boyd and Tim Ross 1992-5-19 7428 Orange along Lucas Canyon Trail from access road to Rancho Carillo (7SO6) n to Aliso Canyon (w edge of wilderness); Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar 365 Comment
  POM47660  Galium porrigens F. W. Peirson 1924-5-31 4665 Orange 5 miles southeast of Laguna Beach Comment
  RSA702689  Galium porrigens Scott D. White, Michael Honer 2004-5-17 10390 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  UCR191347  Galium porrigens A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34632 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  RSA698801  Galium porrigens var. porrigens Unspecified s.n. Orange Lower Trabuco. Comment
  RSA124724  Garrya flavescens E. K. Balls, P. C. Everett 1957-11-25 22847 Orange 1.1 mile E of Silverado 884 Comment
  SD247653  Garrya flavescens subsp. pallida R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49700 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  IRVC24957  Garrya flavescens var. pallida Fred M. Roberts, Gordon A. Marsh 1986-6-6 2931 Orange Santa Ana Mountains; ridge S of Mabey Canyon, just N of Skyline Dr. near Orange County line; 2.7km SE Sierra Peak. Peninsular Ranges 820 Comment
  RSA5344  Garrya flavescens var. pallida B. D. Stark 1933-1-4 4497 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  CAS-BOT-BC192123  Garrya fremontii A. M. White 1974-6-2 74 -671 Orange 20 mi, E. of Santa Ana. North of Silverado 1005 Comment
  POM202591  Gastridium phleoides L. M. Booth 1932-5-19 1082 Orange Newport Bay. Comment
  RSA5510  Gaura coccinea Carl B. Wolf 1932-7-2 3809 Orange 1.5 miles east of Brea on Cedar St. 107 Comment
  CDA5141  Gaura coccinea var. epilobioides E. Johnson 1939-8-3 Orange Brea. 0 Comment
  UCR182326  Gaura drummondii E. Johnson 1939-8-3 s.n. Orange South Coast, Brea 122 Comment
  CDA5172  Gaura drummondii Johnson 1939-8-1 1 Orange North Whittier Heights. 0 Comment
  RSA0014065  Gazania linearis Fred M. Roberts 2008-5-30 7014 Orange Lomas de Santiago: Santiago Creek wash, 0.6 km SSE Silverado Sch., Irvine Ranch Conservancy. 314 Comment
  UCR253010  Geranium anemonifolium Robert DeRuff 2012-3-7 579 Orange South Coast, Newport Back Bay, Northstar Beach park near Newport Aquatic Center 5 Comment
  RSA732063  Geranium carolinianum A. C. Sanders, Fred M. Roberts 2008-4-8 34754 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  UC2014873  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-16 12 -404 Orange City of Dana Point, Dana Point Harbor Drive at Island Way. 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
  RSA749296  Gilia achilleifolia Fred M. Roberts, Linda Farley 2008-3-28 6816 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber's Peak, Irvine Land Conservancy. 437 Comment
  UCR192503  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-3-25 34550 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA698350  Gilia multicaulis R. H. McArthur s.n. Orange Gypsum Canyon. Comment
  RSA39115  Gladiolus italicus E. L. Paddock 1948-4-19 12289 Orange Walnut groves in Santa Ana (north side of Manchester midway between Flower and Main Sts.; and on east 17th St. one-fourth mile east of Grand. Comment
  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
  IRVC449  Gnaphalium bicolor B. Simpson 1965-5-1 Orange Silverado Canyon. Santa Ana Mountains Comment
  IRVC450  Gnaphalium bicolor D. Pfirrmann 1965-4-24 Orange 2179 Orange Ave. Costa Mesa Comment
  IRVC9383  Gnaphalium bicolor B. T. Gittins 1966-3-30 1113 Orange Upper Newport Bay; slope base near salt ponds. Newport Beach Comment
  RSA859  Gnaphalium californicum J. T. Howell 1927-6-24 207 Orange Aliso Canyon, Rancho Santa Ana. 366 Comment
  UCR126410  Gnaphalium leucocephalum Fred M. Roberts 2003-7-24 5963 Orange South Coast, San Juan Capistrano, San Juan Creek, c. 0.1 km NE of La Novia Bridge 27 Comment
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Jun 4 2013
  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
  IRVC25388  Gnaphalium stramineum Fred M. Roberts 1987-4-3 3351 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
  UCR194554  Gnaphalium stramineum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35325 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
  IRVC24748  Gnaphalium stramineum Fred M. Roberts 1986-4-29 2818 Orange Turtle Rock, above corner of Ridgerout Dr. and Turtle Rock Dr., 1.1km SE French Hill, Irvine 141 Comment
  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
  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
  CAS-BOT-BC123701  Grindelia camporum var. bracteosa John Thomas Howell 1927-7-16 2786 Orange hills on N side of Santa Ana Canyon 182 Comment
  IRVC4035  Grindelia camporum var. bracteosa A. S. Boughey 1968-7-16 422 Orange road to Signal Peak. San Joaquin Hills Comment
  IRVC745  Grindelia camporum var. bracteosa M. Savage 1965-4-2 Orange Corona del Mar, across from Irvine Terrace. Newport Beach Comment
  RSA1565  Grindelia camporum var. bracteosa J. T. Howell 1928-7-10 1093 Orange Trabucco Canyon, Santa Ana Mountains. 457 Comment
  RSA17586  Grindelia camporum var. bracteosa C. B. Wolf 1936-7-8 8101 Orange Coast Hwy, Western end of Newport Bay. 9 Comment
  RSA202179  Grindelia camporum var. bracteosa L. M. Booth 1932-5-24 1092 Orange Newport Bay, Public Golf Course. Comment
  UCR119299  Grindelia camporum var. bracteosa R. E. Riefner Jr. 2000-7-8 20- 626 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, on ridgetop overlooking W fork of Fremont Canyon, east of Main Divide Road along the powerline 396 Comment
  CAS-BOT-BC305208  Grindelia hirsutula John Thomas Howell 1931-6-1 6624 Orange San Clemente Comment
  POM359185  Gutierrezia californica F. R. Fosberg 1931-6-21 749 Orange Lower Santiago Canyon. Comment
  UCR220967  Gutierrezia californica Dick Newell, Don Millar 2010-8-31 033 Orange Peninsular Range; Santa Ana Mtns. Foothills, Edison Road above Irvine Lake, 0.9 miles west of Black Star Canyon Rd. 412 Comment
  RSA581359  Hainardia cylindrica R. E. Riefner 1995-6-28 95 -256 Orange Along margins of vernal pools. Surf Beach, San Onofre State Beach. Comment
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Nov 19 2013
  UCR195012  Haplopappus menziesii A. C. Sanders, Fred M. Roberts 2008-8-7 35975 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
  CLARK-A1528-1906  Haplopappus venetus John C. Roos 1949-10-1 4683 Orange Doheney Beach Comment
  RSA554631  Haplopappus venetus Scott D. White 1992-9-29 897 Orange Vinicity of Brea, immediately N of Carbon Canyon Rd & E of Placentia Ave., +/- 1 mi. (airline) S/SE of Tonner Canyon. 183 Comment
  RSA0066589  Harpagonella palmeri Fred M. Roberts 1988-3-15 3870 Orange Rancho Mission Viejo: Central Gabio Canyon, 7.0 km E Playa Survey Marker. 162 Comment
  RSA0066597  Harpagonella palmeri R. E. Riefner Jr. 2000-4-27 20 -391 Orange NCCP North Ranch Policy Plan Area. Along dirt road running S from Baker Cyn. Road to Silverado Road. 335 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
  RSA725521  Hedera helix Fred M. Roberts, Robert L. Allen 2007-9-28 6603 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  UCR26998  Hedera helix E. W. Lathrop 1966-5-13 6297 Orange Santa Ana Mountains, 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  RSA359731  Hedypnois cretica C. B. Wolf 1938-5-2 9406 Orange City of Fullerton, Francis street, 1200 block E side in vacant lot. 61 Comment
  RSA0096954  Helianthemum scoparium var. aldersonii P. A. Munz 1923-6-14 7054 Orange Glen Ivy Trail to Santiago Peak. 1220 Comment
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Feb 22 2019
  CAS-BOT-BC305443  Helianthus annuus Ira L. Wiggins 1965-10-24 20285 Orange Along Skyline Drive near intersection with Raymond Street, Fullerton Comment
  IRVC772  Helianthus annuus D. DeVault 1965-3-28 Orange Corona del Mar, Bayside Dr. and Jamboree Rd. Newport Beach Comment
  RSA734760  Helianthus annuus A. C. Sanders, Fred M. Roberts 2008-5-6 35217 Orange Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  SEINET156042  Helianthus annuus Norman C. Cooper 1944-6-4 1366 Orange Elsinore Mtn. Lookout at top. 1067 Comment
  CAS-BOT-BC305445  Helianthus annuus Ira L. Wiggins 1965-11-6 20339 Orange Kraemer Oil Estates, near Well No. 14, near end of county road leading to Rancho Santa Ana (extension of Orangethorpe Blvd.) Comment
  UC774835  Helianthus ciliaris E. Paddock 1942-7-21 11291 Orange n side Ocean Ave. 1/4 mi w La Mirada Rd.; La Habra, Toler Ranch Comment
  CAS-BOT-BC305657  Helianthus ciliaris E. Paddock 1942-7-21 11291 Orange Toler Ranch, N. side Ocean Ave., 1/4 mi. W. of La Mirada Rd., LaHabra Comment
  CAS-BOT-BC305658  Helianthus ciliaris E. L. Paddock 1941-8-1 s.n. Orange Graham-Loftus property, 2 miles east of Brea Comment
  RSA748268  Helianthus gracilentus A. C. Sanders, Fred M. Roberts 2008-6-17 35513 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UC537260  Helianthus nuttallii subsp. parishii L. M. Booth 1933-8-26 1388 Orange Newport Lagoon Comment
  RSA0012952  Helianthus nuttallii subsp. parishii L. M. Booth 1933-8-26 1388 Orange Far end of Newport Lagoon Comment
  RSA695823  Heliotropium curassavicum Kenneth Beard s.n. Orange Santa Ana riverbank Comment
  SEINET3083751 Image available Heliotropium curassavicum Janice Hollinger 1972-4-16 720416 -5 Orange Santa Ana River bottom, off Coal Canyon Road. Comment
  UCR100455  Heliotropium curassavicum B. G. Pitzer 1996-4-30 2770 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR195005  Heliotropium curassavicum A. C. Sanders, Fred M. Roberts 2008-8-7 35983 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
  UCR239853  Heliotropium curassavicum O. F. Clarke 2004-4-5 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  POM319997  Heliotropium curassavicum var. oculatum Greg Wright 1971-7-17 313 Orange Pacific Coast Highway south of Laguna, Aliso Creek, inland from highway. 8 Comment
  UCD119434  Heliotropium curassavicum var. oculatum B. Pitzer 1996-4-30 2770 Orange Upper Newport Bay: Calif. Dept. Fish and Game Ecological Reserve, off (W of) Jamboree Rd. 6 Comment
  RSA234522  Hemizonia australis James Henrickson 1970-7-25 5081 Orange 3.5 miles NW of Huntington Beach growing along graded inner slope of East Garden Grove-Wintersburg Flood Control Channel near Bolsa Chica Salt Marsh. 2 Comment
  RSA254941  Hemizonia australis C. W. Tilforth 1975-9-6 1047 Orange Upper Bay, Newport Beach: North-east shoreline. Comment
  RSA360335  Hemizonia australis L. C. Wheeler 1932-6-25 849 Orange 5 miles west of Santa Ana. 22 Comment
  RSA581662  Hemizonia australis Tony Bomkamp 1995-06 s.n. Orange Rancho Mission Viejo, floodplain of Canada Gobernadora W of Casper Regional Park. 140 Comment
  POM202163  Hemizonia fasciculata L. M. Booth 1932-5-12 1038 Orange Newport Bay Comment
  POM360262  Hemizonia fasciculata F. R. Fosberg 1930-7-10 455 Orange Anaheim Landing. [Los Angeles Co. on label] Comment
  POM5000  Hemizonia fasciculata H. M. Hall 1906-6-19 7411 Orange Gypsum, Santa Ana Canyon 122 Comment
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Sep 4 2011
  POM56177  Hemizonia fasciculata H. M. Hall 1906-6-19 7411 Orange Gypsum, Santa Ana Canyon 122 Comment
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Sep 4 2011
  UCR191218  Hemizonia fasciculata A. C. Sanders 2008-4-29 35142 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
  POM5969  Hemizonia paniculata D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. Comment
  SEINET5014574  Hemizonia parryi Unknown 1933-9-29 2537 Orange Seal Beach Comment
  SEINET1782058  Hemizonia parryi subsp. australis David D. Keck 1933-9-29 2537 Orange Seal Beach. Comment
  UCR157704  Hemizonia parryi subsp. australis Adrian Wolf 1998-5-27 326 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
  UCR231160  Hemizonia parryi subsp. australis Dick Newell, Don Millar 2011-6-22 191 Orange South Coast, Newport Beach, Delhi Channel near University Drive 5 Comment
  JEPS44659  Heteromeles arbutifolia Lawrence M. Booth 1932-6-7 1166 Orange Newport Bay Comment
  RSA786954  Heteromeles arbutifolia Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49621 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station Comment
  UCR222879  Heteromeles arbutifolia T. B. Salvato 2010-10-27 5123 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
  UCR223957  Heteromeles arbutifolia Fred M. Roberts 2008-4-9 6884 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8 km west northwest of Marine Institute, Dana Point Harbor 65 Comment
  CAS-BOT-BC318900  Heterotheca grandiflora Helen D. Geis 1902-1-1 536 Orange Santa Ana Comment
  IRVC25170  Heterotheca grandiflora Fred M. Roberts, B. Fugle 1986-10-1 3148 Orange Laguna Hills; creek channel along Cabot Rd. ca. 1.0km N Pacific Park Pkwy. Southern Coastal 99 Comment
  IRVC791  Heterotheca grandiflora C. Thompson 1965-2-28 Orange Corona Del Mar: Corona Highlands Southern Coastal Comment
  RSA0075822  Heterotheca grandiflora A. C. Sanders, Fred M. Roberts 2008-5-6 35236 Orange Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 280 Comment
  CAS-BOT-BC318903  Heterotheca grandiflora J. Ewan 1931-10-3 s.n. Orange 1/2 mile above La Vida Soda Springs, Carbon Canyon Comment
  RSA0075811  Heterotheca grandiflora J. T. Howell 1927-9-24 747 Orange Hill tops north of Botany Garden, Rancho Santa Ana. 274 Comment
  RSA0075815  Heterotheca grandiflora Mary F. Spencer 1922-5-31 77 Orange Fullerton, Orange County Comment
  UCR220968  Heterotheca sessiliflora Dick Newell, Don Millar 2010-8-17 32 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Ridge Rd. 200 ft. south of Markel Spur Rd., 0.8 mi. west of Santiago Canyon rd, 427 Comment
  RSA539418  Heterotheca sessiliflora subsp. echioides Fred M. Roberts, D. Willick 1988-9-16 4135 Orange Peralta Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.1 km N Robbers Peak 177 Comment
  UCR224404  Hibiscus trionum Robt. L. Allen 2008-4-9 s.n. Orange South Coast, Irvine, Irvine Valley College, near norhteast corner of Student Services building 45 Comment
  CAS-BOT-BC55398  Hirschfeldia incana Ira L. Wiggins 1965-10-24 20281 Orange Fullerton. Along Skyline Driver near intersection with Raymond Street. Comment
  RSA653179  Hirschfeldia incana David Barrios 1991-5-8 39 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA743501  Hirschfeldia incana Fred M. Roberts 2008-7-10 7077 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  CAS-BOT-BC207961  Hoffmannseggia glauca Goodwin 1933-7-6 s.n. Orange Unspecified Comment
  POM201849  Hoita macrostachya L. M. Booth 1932-7-1 1236 Orange Anaheim Marsh Comment
  POM348810  Hoita macrostachya Albert J. Perkins 1912-10-15 s.n Orange Swamp near head Newport Bay. Comment
  RSA0026264  Hoita macrostachya Fred M. Roberts 2013-6-12 7785 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
  UCD169748  Hoita macrostachya R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49564 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along San Juan Creek. 1859 Comment
  IRVC18572  Holocarpha virgata Karlin G. Marsh 1980-8-13 Orange S of Trabuco Canyon, Sect. 12, Hinricks Parcel. Santa Ana Mountains Comment
  RSA724057  Holocarpha virgata subsp. elongata R. E. Riefner 2003-10-14 03 -421 Orange San Clemente State Beach, mima mound field in SW corner of park. 27 Comment
  POM244252  Holodiscus discolor Percy C. Everett 1935-6-18 7221 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  RSA6142  Holodiscus discolor E. R. Johnson 1933-6-22 5000 Orange 1/4 mile east and 1/2 miles south of northwest corner of Rancho Santa Ana in Sect. 16 305 Comment
  UC1127989  Holodiscus discolor A. Lewis 1934-5-1 423 Orange Cleveland National Forest, Trabuco Canyon Trabuco Canyon; Cleveland National Forest, Trabuco Canyon 1280 Comment
  CAS-BOT-BC150006  Holodiscus discolor var. discolor P. C. Everett 1935-6-18 7221 Orange Santa Ana Mts., Summit of Santiago Pk. 1731 Comment
  RSA642527  Hordeum intercedens D. E. Bramlet 1998-5-25 2627 Orange 120m north of the Newport Beach Library and 61m west of McArthur Blvd. 914m south of San Miguel Drive., Laguna Beach 7.5 USGS Quadrangle. UTM 11S 04 19 210m E X 37 18 860m N. Eleation 49 m. 15 Comment
  RSA642531  Hordeum intercedens D. E. Bramlet 1998-5-20 2622 Orange San Juan Hills, 488m west of La Pata Ave. and 1.22km north of Prima Deshecha Canada. In a blue-line drainage, 457m east of the old ridgeline road., UTM 11S 04 42 339mE X 37 06 310mN 149 Comment
  UCR158226  Hordeum intercedens Adrian Wolf 1998-5-4 202 Orange South Coast, Coastal Hills, Aliso/Woods Canyon Regional Park, Aliso Canyon 0.75 km SW of Woods Canyon, 2.25 km NNW of Aliso Water Treatment Plant, north of access road 30 Comment
  UCR168468  Hordeum intercedens D. E. Bramlet, Fred M. Roberts 2003-5-15 3436 Orange Donna O'Neill Reserve, SE corner of Reserve 152 m west of Cristianitos Road and 731 m N of Pico, 122 m NW of the SDGE Substation 98 Comment
  RSA735167  Hordeum murinum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35278 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR102009  Hordeum murinum B. G. Pitzer 1997-3-25 3002 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  CDA22569  Hordeum murinum subsp. leporinum J. B. Anderson 1966-4-16 587 Orange South Coast; Corona Del Mar: Buck Gully, Little Corona Beach Comment
  RSA366540  Horkelia cuneata subsp. puberula N. C. Cooper 1944-6-4 1369 Orange San Juan Canyon. 152 Comment
  RSA747712  Hypochaeris glabra Fred M. Roberts 2008-4-9 6867 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  UC1543205  Hypochaeris glabra Donald G. Nelson 1935-4-14 277 Orange Newport Beach Comment
  UCR98131  Hypochaeris glabra George K. Helmkamp, E. A. Helmkamp 1997-4-24 1659 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
  CDA5575  Ipomoea aquatica G. Jackson 1981-10-21 Orange Northeast corner Manchester and Whitaker, Buena Park. 0 Comment
  RSA783567  Isocoma J. D. Olmsted 1959-5-1 519 Orange 500 yards west of Oat Flat past Johnson's dam; 9 mi. SW of Corona. 793 Comment
  POM294117  Isocoma menziesii var. decumbens Lyman Benson 1946-5-13 12097 Orange Corona del Mar, Pacfic Ocean drainage area 50 Comment
  RSA184129  Isocoma menziesii var. menziesii I. L. Wiggins 1965-10-27 20305 Orange Roadside and along creek bank, just SW of Los Angeles Co. line, on Brea Canyon Rd. Comment
  CAS-BOT-BC311732  Isocoma menziesii var. vernonioides L. R. A. 1901-6-1 1783 Orange San Joaquin Hills Comment
  CDA8035  Isocoma menziesii var. vernonioides E. Dudley 1956-10-26 Orange Bryant Ranch, Irvine. 0 Comment
  IRVC24537  Isocoma menziesii var. vernonioides J. Johnson 1976-8-10 Orange Newport [Back] Bay. Newport Beach Comment
  IRVC25168  Isocoma menziesii var. vernonioides Fred M. Roberts, B. Fugle 1986-10-1 3145 Orange Laguna Hills; creek channel along Cabot Rd. ca. 1.0km N Pacific Park Pkwy. Southern Coastal 99 Comment
  RSA703094  Isocoma menziesii var. vernonioides Fred M. Roberts, Art Davenport 2003-9-11 6002 Orange Rancho Mission Viejo: Donna O' Neill Land Conservancy. Cristianitos Cyn., 0.79 km N Sycamore Gate 0.23 km w of Crisianitos Road. 126 Comment
  SD136910  Isocoma menziesii var. vernonioides Steve Boyd, Tim Ross 1994-9-14 8343 Orange Southern Santa Ana Mountains,San Mateo Canyon Area,Lucas Canyon trailhead at Forest Service Road 7S06 on ridge dividing Aliso and Verdugo Cany 509 Comment
  UC221420  Isocoma menziesii var. vernonioides F. M. Reed 1917-7-1 3918 Orange bluffs at Laguna Laguna Comment
  RSA757058  Isolepis cernua O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange Newport Back Bay 3 Comment
  JEPS42708  Isomeris arborea L. M. Booth 1932-5-12 1045 Orange Newport Bay Comment
  UCR239925  Iva hayesiana O. F. Clarke, D. Svehla 2003-5-7 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  CLARK-A1528-1975  Jaumea carnosa John C. Roos 1949-10-1 4682 Orange Doheney Beach Comment
  IRVC21634  Jaumea carnosa P. Fishman, H. R. Williams 1969-9-23 981 Orange Upper Newport Bay, below east bluff; above high tide line. Newport Beach Comment
  UCR240104  Jaumea carnosa Dick Newell, Judy Booth 2012-9-26 292 Orange South Coast, Newport Beach, Back Bay Drive at the Salt Dike 3 Comment
  RSA701954  Jepsonia parryi Fred M. Roberts, Robert L. Allen 2004-1-16 6021 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.63 km SSW Gato Gate and 0.23km W of Cristianitos Rd. 107 Comment
  UC112095  Juglans E. B. Babcock 1907-9-9 Orange on ranch of E.S. Ware 1 mi n Garden Grove Comment
  CAS-BOT-BC101919  Juglans californica C. B. Wolf 1934-9-21 6141 Orange Lower end of Brea Canyon, Puente Hills 182 Comment
  UCR229283  Juglans californica R. E. Riefner Jr. 2011-8-25 11- 112 Orange Trabuco Canyon, Trabuco Canyon Road c. 1 mi northwest of O'Neill Regional Park 319 Comment
  RSA0011056  Juglans californica J. R. Bruff 1936-11 s.n. Orange 1416 Durant St. Santa Ana. Comment
  RSA171  Juglans californica var. californica J. T. Howell 1928-4-14 908 Orange Aliso Canyon, Rancho Santa Ana. 229 Comment
  UC1135934  Juglans californica var. californica A. Lewis Mar 1934 356 Orange Brea Canyon Corona Quadrangle Comment
  CAS-BOT-BC414248  Juglans hindsii R. E. Riefner, Jr. 2014-7-10 14 -240 Orange City of Laguna Beach, Laguna Canyon, Sun Valley Dr. along creek near Stan's Ln. 73 Comment
  SEINET5586505  Juglans hindsii R. E. Riefner Jr. 2013-1 13 -233 Orange City of Laguna Beach, Laguna Canyon, N of Phillips St. on E side of Laguna Canyon Rd. 71 Comment
  UCR247477  Juglans hindsii R. E. Riefner Jr. 2011-4-22 11- 34 Orange South Coast, city of Laguna Beach, Laguna Canyon, Laguna Wilderness Park, Stagecoach Trail, c. 0.15 mi north of El Toro Road on west side of Laguna Canyon Road 86 Comment
  UCR242861  Juglans nigra R. E. Riefner Jr. 2011-8-25 11- 115 Orange Trabuco Canyon, Trabuco Canyon Road c. 1 mi northwest of O'Neill Regional Park 319 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
  POM47588  Juncus acutus subsp. leopoldii I. M. Johnston 1924-8-29 s.n. Orange 4 miles north of Balboa Comment
  RSA614279  Juncus acutus subsp. leopoldii L. C. Wheeler 1932-6-25 869 Orange Newport Bay: Inland arm of.. Sea level. Comment
  UC842095  Juncus acutus subsp. leopoldii Louis C. Wheeler 1932-6-25 869 Orange inlet arm of Newport Bay Newport Bay 0 Comment
  RSA748262  Juncus balticus subsp. ater A. C. Sanders, Mitch Provance 2008-5-20 35395 Orange Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA22445  Juncus bufonius Alice Eastwood, John Thomas Howell 1937-4-24 3933 Orange Dana Point. Comment
  UCR97575  Juncus bufonius B. G. Pitzer 1997-4-15 3139 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  RSA788923  Juncus dubius Fred M. Roberts 1999-6-23 5245 Orange Peninsular Range, Santa Ana Mtns. Region: Lomas de Santiago: tributary to Santiago Creek, ridge between Limestone Cyn, and Santiago Creek wash across from Pancho Canyon, 1.6 km ENE Bolero Spr. and 1.6 km NNW Bolero Lookout. 396 Comment
  UCSB47985  Juncus macrophyllus Roberts, Fred 1980-6-25 Orange Santa Ana Mtns; San Juan Canyon below Calif. Rte. 74; 2.4 km ENE San Juan Guard Station; 0.3 km WSW BM 1100 290 Comment
  UCSB48193  Juncus macrophyllus Roberts, Fred 1981-6-26 Orange Santa Ana Mts; east fork Viejo Cyn; 0.6 km N Calif. Rte. 74; 2.7 km E San Juan Guard Station 326 Comment
  RSA105  Juncus mexicanus J. T. Howell 1927-6-21 187 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UC729648  Juncus mexicanus E. R. Johnson 1932-5-5 Orange Santa Ana River bottom, near ranch house Santa Ana Canyon, Rancho Santa Ana 121 Comment
  RSA594873  Juncus mexicanus Fred M. Roberts, W. R. Ferren 1991-12-1 4828 Orange Aliso-Wood Canyons Regional Park: Lower Wood Canyon, just above confluence with Alins Canyon, ca. 3.5 kilometers S Multon Peak. 32 Comment
  RSA0027429  Juncus patens Fred M. Roberts 2013-7-18 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
  RSA794757  Juncus torreyi Justin M. Wood, Dustin M. Ray 2010-10-1 2774 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
  RSA699936  Juncus xiphioides Keith E. Hoffmaster 1934-7-15 s.n. Orange Santa Ana Mts (Modjeska) Comment
  UCR174211  Juncus xiphioides A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33046 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
  NY786526  Keckiella antirrhinoides var. antirrhinoides F. R. Fosberg 1931-6-21 S 5147 Orange Silverado Canyon, Santa Ana Mountains Comment
  LA105129  Keckiella cordifolia David C. Michener; 1980-7-14 3704 Orange Santa Ana Mountains, Starr Ranch Audubon Sanctuary, Crow Creek, ca. 1.3 mi N of confluence with Bell canyon Comment
  RSA401706A  Keckiella cordifolia F. R. Fosberg 1931-6-21 S- 5133 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA649976  Keckiella cordifolia Gat Shlomo 1959-5-12 33 Orange Carbon [Canyon] Comment
  UCR227631  Keckiella cordifolia Robt. L. Allen 2003-6-22 12288 Orange Santa Ana Mountains, west-facing flank of Santiago Peak, near the saddle between Santiago and Modjeska Peaks, along North Main Divide Road 1523 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
  POM18123  Keckiella ternata subsp. ternata Philip A. Munz 1923-9-7 7743 Orange Santiago Peak. 1524 Comment
  CAS-BOT-BC271251  Koeleria pyramidata P. Munz; L. Street 1919-5-3 2622 Orange Santa Ana River Canyon Comment
  CAS-BOT-BC174783  Koelreuteria bipinnata T. B. Salvato; Katie Kurtz; Mitch Provance 2006-10-15 1903 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  SEINET998786  Koelreuteria bipinnata R. E. Riefner Jr. 2006-1 06 -673 Orange South Coast: Irvine, along San Diego Creek at Campus Ave. (Tustin 7.5' Q.) 4 Comment
  UCR239644  Koelreuteria bipinnata Fred M. Roberts 2012-5-9 7555 Orange Santa Ana Mountains, Lake Forest, along Serrano Creek hiking trail, 1.0 m south-southwest of intersection of Commercentre and Dimension Drives 171 Comment
  POM361393  Lactuca serriola Freda Detmers 1931-7-15 s.n. Orange San Bernardino Mts, One ridge along Pine of the World Drive Comment
  RSA12634  Lactuca serriola C. B. Wolf 1934-8-16 6065 Orange Bryant Ranch E of Long Beach, Bixby Ave 100 ft and E of SW corner NW/4 NE/4, S31. 6 Comment
  SD247453  Lagunaria patersonia R. E. Riefner Jr. 2011-6-29 11 76 Orange City of Laguna Beach, general area of Shaw's Cove, vicinity of Cliff Drive and Fairview Street. 0 Comment
  SD220025  Lamarckia aurea Mark A. Elvin 2004-5-2 3427 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  UC1132172  Lamarckia aurea A. Lewis 1934-4-1 377 Orange Coal Mine 304 Comment
  UCR154272  Lamarckia aurea Mark A. Elvin 2004-5-2 3427 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR2510  Lamarckia aurea F. M. Reed 1925-4-15 6325 Orange Santa Ana Canyon near Canal Bridge 168 Comment
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Dec 7 2014
  UCSB49039  Lamium amplexicaule Martincich, M. 1980-3-12 Orange On a cow trail on Franklin Ranch, Goleta 137 Comment
  CDA23089  Lampranthus aurantiacus Mark A. Elvin, D. G. Kelch 2006-12-9 5303 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  RSA0040039  Lantana camara Anonymous 1933-10-13 s.n. Orange Santa Ana. Comment
  UCD132262  Lasiospermum bipinnatum Peter Evans 2013-3-23 s.n. Orange Niguel Botanical Preserve located at 29751 Crown Valley Parkway, Laguna Niguel. 99 Comment
  IRVC20365  Lasthenia californica Fred M. Roberts, D. A. Roberts 1983-3-22 933 Orange San Juan Canyon, above Hwy 74, 2.7km ENE San Juan Guard Sta.; 3.6km SSW Sugar Loaf Pk., Santa Ana Mountains 407 Comment
  IRVC25402  Lasthenia californica Fred M. Roberts 1987-4-3 3335 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
  UCR70756  Lasthenia glabrata subsp. coulteri C. B. Wolf 1932-3-8 02691 Orange South Coast, Sunset Beach, [Bolsa Chica] at southern city limits 2 Comment
  RSA0024932  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2013-3-10 13 -39 Orange City of Lake Forest, along El Toro Rd. at Destry Rd. 211 Comment
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Apr 7 2021
  UCR247510  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2013-3-10 13- 39 Orange city of lake Forest, along El Toro Road at Destry Road 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
  RSA0010307  Lasthenia gracilis Fred M. Roberts 2008-3-12 6732 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  SD240877  Lasthenia gracilis Jeffrey Ross, R. Zaka 1998-5-2 39 Orange South Coast: North side of San Joaquin Hills; William R. Mason Regional Park, near intersection of Yale Avenus and University Drive (Tustin 7.5'Q) 25 Comment
  UC149282  Lasthenia gracilis LeRoy Abrams 1903-4-18 3265 Orange near Capistrano; Trabuco arroyo Comment
  RSA92917  Lasthenia gracilis F. W. Peirson 1924-5-31 4667 Orange 5 miles southeast of Laguna Beach. Comment
  RSA292482  Lathyrus sphaericus James Henrickson 1972-10-21 8061 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. Irrigated grassland eventually to be used for large Newport Beach Business Center. 46 Comment
  SEINET956187  Lathyrus strictus P. C. Everett 1935-1 6292 Orange Santa Ana Mts. Baker Canyon, West Ladd Truck Trail. 1000 Comment
  JEPS57259  Lathyrus tingitanus L. R. Heckard and R. C. Bacigalupi 1968-5-8 1837 Orange just n of Doheny Beach Park (Dana Point); Dana Point Comment
  RSA405743  Lathyrus vestitus subsp. alefeldii Anstruther Davidson 1923-4-1 s.n. Orange Trabuco Canyon. Comment
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Jan 11 2016
  IRVC14906  Lathyrus vestitus subsp. laetiflorus D. Ibbetson 1965-4-19 Orange Newport Beach. Southern Coastal Comment
  RSA488133  Lathyrus vestitus subsp. laetiflorus T. Mulroy 1973-5-21 1864 Orange Highway 74 ca 1 mile E of bridge across San Juan Creek. Comment
  UCR141338  Laurus nobilis Robert DeRuff 1990-3-31 391 Orange Southern Coast, Newport Beach, Newport Back Bay, East Bluff 9 Comment
  RSA794333  Lavandula dentata Justin M. Wood 2010-3-31 1451 Orange Santa Ana Canyon: Chino Hills State Park property just west of Green River Golf Course on bluff south of the river. 131 Comment
  RSA699674  Layia platyglossa Keith E. Hoffmaster 1935-4-19 s.n. Orange Santiago can. near Silverado ca., Santa Ana Mountains. Comment
  SD218972  Layia platyglossa Bramlet, Jim Harrison 2008-4-3 4151 Orange Santa Ana Mountains region; South Bee Canyon Bowerman landfill site, 1.2 km south of the Bee Canyon access road and 122 m west of the active landfill. Comment
  SEINET7882512 Image available Layia platyglossa Jean Coulson 1959-1 s.n. Orange Disneyland; Painted Desert W. of Paint Pots Comment
  RSA463151  Layia platyglossa subsp. campestris Lyman Benson 1932-3-26 3193 Orange Dana Point. 60 Comment
  UCR102631  Lemna B. G. Pitzer 1996-4-30 2786 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR207798  Lemna O. F. Clarke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCSB57139  Lepechinia calycina Marsh, G.; Marsh, K. 1978-5-13 Orange Santa Ana Mtns.: Claymine Canyon Road; above Claymine Canyon center, west ridge also near road Comment
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Nov 16 2020
  RSA171015  Lepechinia cardiophylla Robert F. Thorne 1963-7-26 32853 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Cleveland National Forest. 732 Comment
  RSA787497  Lepechinia cardiophylla Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49705 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UC1719509  Lepidium densiflorum D. Atwood 1993-3-27 17692 Orange Corona del Mar State Park along Newport Coast Drive 0 Comment
  CAS-BOT-BC89527  Lepidium lasiocarpum Philip A. Munz 1932-3-29 12191 Orange Costa Mesa. Comment
  SD145978  Lepidium lasiocarpum A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23338 Orange Pacific Coast: Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica Street. 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
  SD28156  Lepidium nitidum Carl B. Wolf 1932-2-15 2658 Orange Rancho Santa Ana Botanic Garden near the Tan Oak Beds 185 Comment
  UCR102019  Lepidium nitidum B. G. Pitzer 1997-3-25 3026 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, along the bike trail 30 Comment
  CDA25727  Lepidium oblongum A. C. Sanders, T. B. Salvato 2008-5-13 35331 Orange Peninsular Range; Santa Ana Mountains; Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Canyon, c. 1/2 mile below Modjeska Canyon confluence. Comment
  UCR179765  Lepidium oblongum R. E. Riefner Jr. 2006-4-8 06- 112 Orange South Coast, San Juan Capistrano (city), San Juan Creek at La Novia Ave. 22 Comment
  IRVC25434  Lepidium pinnatifidum Fred M. Roberts 1987-7-8 3471 Orange San Diego Creek, near San Diego Freeway crossing, 3.2km N UC Irvine Campus center; Irvine 5 Comment
  SD215443  Lepidium ruderale Louis C. Wheeler 1947-5-4 6476 Orange 4.5 miles south of Santa Ana; South Main Street Extension, 0.8 mile south of Newport Avenue. Comment
  HSC6841  Lepidium virginicum D. H. Norris 1956-6-16 10 Orange Along Guess Rd., near Eno River Comment
  POM202605  Lepidium virginicum var. pubescens L. M. Booth 1932-5-24 24 Orange West Side of Newport Lagoon. Comment
  CAS-BOT-BC329359  Lepidospartum squamatum Helen D. Geis 1902-1-1 s.n. Orange Santiago Canon Comment
  RSA899  Lepidospartum squamatum J. T. Howell 1927-7-28 505 Orange West side, Rancho Santa Ana. 152 Comment
  SD263572  Lepidospartum squamatum Jim Riley 2013-10-15 123 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  UCR240087  Lepidospartum squamatum Dick Newell, Judy Booth 2012-6-3 262 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Truck Trail/Silverado Canyon Rd., 1.6 miles ENE of Maple Springs Gate 741 Comment
  HSC79611  Leptochloa fusca subsp. uninervia James Henrickson 1972-10-21 8059 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. along La Palma Ave., just N of Santa Ana River. 61 Comment
  POM202734  Leptochloa fusca subsp. uninervia L. M. Booth 1932-7-18 1262 Orange Costa Mesa, Newport Bay Comment
  RSA725526  Leptochloa fusca subsp. uninervia Fred M. Roberts 2007-9-11 6576 Orange San Juan Capistrano: San Juan Creek at the confluence with Trabuco Creek. 17 Comment
  SDSU3242  Leptochloa uninervia D. F. Howe 1976-7-12 4907 Orange Santa Ana River, Huntington Beach. Comment
  UC537285  Leptochloa uninervia Lawrence M. Booth 1932-7-18 1262 Orange Costa Mesa Newport Bay Comment
  RSA788816  Leptosiphon floribundus R. F. Thorne 1977-11-21 49985 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  RSA708223  Leptosiphon floribundus subsp. floribundus Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6216 Orange Main Divide Road, ridge between Silverado and Bixby Canyons, coastal slope, 0.46km (air) S Bald Peak. 1203 Comment
  SD247695  Leptosiphon floribundus subsp. floribundus R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49714 Orange Santa Ana Mountains: Bedrod Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail. Comment
  POM364668  Leptosiphon floribundus subsp. glaber Anstruther Davidson 3068 Orange Modjesta Ranch. Comment
  RSA715700  Leptosiphon liniflorus Fred M. Roberts, Robert L. Allen 2005-10-15 6311 Orange entrance to Falcon Group Camp, 2.1km ESE Los Pinos Peak and 0.3km NE campground. 1008 Comment
  UCSB52447  Leptosiphon liniflorus Roberts, Fred 1982-7-20 Orange Falcon Group Camp, 2.0 km. SE Los Pinos Peak; Santa Ana Mts. 1080 Comment
  UC1618069  Leptosiphon parviflorus Donald G. Nelson 1935-7-6 203 Orange San Juan Canyon Comment
  OBI82197  Lessingia filaginifolia Andrew C. Sanders, Fred M. Roberts 2008-8-7 35970 Orange Peninsular Range; Santa Ana Mtns.: lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate (Orange/Black Star Cyn. 7.5' Qs.) 185 Comment
  UCR195015  Lessingia filaginifolia A. C. Sanders, Fred M. Roberts 2008-8-7 35970 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
  RSA160419  Lessingia glandulifera var. glandulifera J. D. Olmsted 1959-9-22 984 Orange Along industrial waste waters bank from 3 miles clay works just N of Hwy 8-9 miles WSW of Corona, N of Santa Ana Mts. to Santa Ana River 140 Comment
  RSA51  Leymus condensatus E. R. Johnson 1927-6-10 77 Orange Rancho Santa Ana. Alt 500 ft. 152 Comment
  CDA35061  Ligustrum lucidum Mark A. Elvin, D. Kelch, B. S. Nerhus, P. Iluore 2006-12-9 5327 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 100 miles west of Eastbluff Drive. Comment
  IRVC26901  Limonium R. E. Reifner 2002-5-4 20 92 Orange Upper Newport Bay; Jamboree Road at Bayview Drive. Southern Coastal 15 Comment
  CDA1076  Limonium binervosum D. G. Kelch 2006-12-9 6 .547 Orange Along Newport Back Bay Dr. in side canyon. Comment
  UCR6061  Limonium perezii Sue Freeman 1966-3-27 s.n. Orange South Coast, Laguna, off end of Wave Street 6 Comment
  UC1923253  Limonium preauxii R. E. Riefner Jr. 2008-2-25 8 -25 Orange City of Lake Forest, Lake Forest Blvd. near Ranch Rd. at Serrano Creek 229 Comment
  RSA731656  Limonium ramosissimum Fred M. Roberts 2007-10-29 6623 Orange Niguel Hill: Laguna Niguel, Seaview Park, 1.3 km ENE Aliso Peak. 265 Comment
  RSA769619  Linanthus E. W. Lathrop 1974-6-27 7420 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  CAS-BOT-BC226771  Linanthus californicus Marcus E. Jones 1926-3-10 s.n. Orange Near Santa Ana Canon [Canyon] Comment
  CAS-BOT-BC226777  Linanthus californicus C. B. Wolf 1931-3-6 1831 Orange 1 1/2 miles below Trabuco Oaks along Trabuco Canyon road, west slope of Santa Ana Mts. 304 Comment
  RSA618  Linanthus californicus subsp. glandulosus J. T. Howell 1927-6-26 229 Orange Claymine Canyon, near Sierra Peak. 457 Comment
  JEPS89271  Linanthus dianthiflorus Rimo Bacigalupi and L. Heckard, P. C. Hutchison 1962-3-16 8233 Orange 2 mi n Doheny Beach State Park (fields above ocean) Comment
  UCSB48049  Linanthus dianthiflorus Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point: hills, 1.0 km N Dana Hills High School; 1.9 km W Marco Forster Junior High School 30 Comment
  SEINET12279064  Linanthus dianthiflorus J. F. Bright, Wyman, C. 1933-1 8009 Orange Santa Anna foothills Comment
  POM279123  Linanthus dianthiflorus subsp. dianthiflorus Lyman Benson 1932-3-26 3192 Orange Dana Point. 60 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
  SD254679  Linanthus liniflorus D. E. Bramlet 2008-5-20 4278 Orange Peninsular Range: Santqa Ana Mountains Foothills: Northern Loma Ridge, 305 m west of Hwy 241, 975 m south of Santiago Canyon Road, 61 m north of access road (Black Star Canyon 7.5'Q) 355 Comment
  RSA790708  Linaria canadensis Pomeroy 1929-3-16 103 Orange Costa Mesa. CP3. Comment
  RSA749524  Linaria canadensis var. texana Fred M. Roberts 2008-4-8 6849 Orange Lomas de Santiago: Loma Ridge, Upper Dripping Springs Cyn., 1.0 km NE Bee Peak, Irvine Ranch Conservancy. 458 Comment
  SFV17364  Lithophragma affine J. N. Hogue, J. D. Dilley, D. L. Bishop 1998-4-9 104 .3 Orange Santa Ana Mountains San Juan Canyon, 0.5 miles southwest of Lower San Juan Picnic Area at highway marker 14. 366 Comment
  RSA599176  Lithophragma affine subsp. affine Scott D. White 1997-3-28 4830 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  POM8755  Lithophragma affine subsp. mixtum P. A. Munz, R. D. Harwood 1920-4-25 3718 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  RSA162696  Lithophragma affine subsp. mixtum J. D. Olmsted 1959-4-23 461 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  RSA733823  Lobularia maritima Keith E. Hoffmaster 1928-3-5 394 -442 Orange Santa Ana Mountains Comment
  UCR16075  Lolium perenne subsp. multiflorum N. J. Moriarty 1973-5-26 730526- 2 Orange South Coast, Huntington Beach, vacant lot at the corner of Beach Blvd. and Memphis Avenue 15 Comment
  RSA0011622  Lolium perenne subsp. multiflorum Rankin s.n. Orange Irvine Park. Comment
  RSA734678  Lolium perenne subsp. perenne A. C. Sanders, T. B. Salvato 2008-5-13 35332 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  CLARK-A1528-2431  Lomatium lucidum John C. Roos 1960-5-30 Orange Santa Ana Mountains 1066 Comment
  RSA562804  Lomatium lucidum Steve Boyd, Timothy S. Ross 1992-5-20 7476 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
  RSA0119677  Lonicera japonica Fred M. Roberts 2015-4-16 7940 Orange Newport Beach: Big Canyon, north side, vicinity of Big Canyon Trail, 0.5 km W Corona Del Mar High School. 2 Comment
  UCR193842  Lonicera subspicata A. C. Sanders, Fred M. Roberts 2008-7-16 35858 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  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
  RSA7459  Lonicera subspicata var. denudata C. B. Wolf 1933-8-24 5377 Orange 1/2 mile below summit of Bedford Motorway, east slope of Santa Ana Mountains. 976 Comment
  RSA768119  Lonicera subspicata var. johnstonii E. W. Lathrop 1974-6-27 7424 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA0023266  Lonicera subspicata var. johnstonii R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49781 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  CAS-BOT-BC198563  Lotus E. W. Lathrop 1974-6-27 7420 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest 396 Comment
  RSA697960  Lotus americanus Domeroy 1929-5-19 s.n. Orange Old road to Orange Co. Park Comment
  RSA542544  Lotus hamatus Fred M. Roberts 1988-4-10 3914 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  UC1719510  Lotus hamatus D. Atwood 1993-3-27 17693 Orange Corona del Mar State Park along Newport Coast Drive 0 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
  RSA788959  Lotus purshianus Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49588 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UC1607985  Lotus purshianus var. purshianus Donald G. Nelson 1935-7-5 345 Orange E. Elm St. Brea (along roadside in dry hayfield) Comment
  RSA681848  Lotus salsuginosus Scott D. White, Michael Honer 2003-6-12 9541 Orange Southwestern Santa Ana Mtn. Foothills: Rancho Mission Viejo. Upper end of Trampas Canyon. 152 Comment
  RSA697975  Lotus salsuginosus Olive Van Meter s.n. Orange Black Star Canyon. Comment
  RSA735165  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-5-6 35232 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  SEINET3562996 Image available Lotus salsuginosus Lawrence M. Booth 1932-5-19 1073 Orange Newport Bay Comment
  UCR193847  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-7-16 35882 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  IRVC11705  Lotus salsuginosus subsp. salsuginosus R. Yarnell 1966-3-16 62 Orange near Orange County Refuse Dump [Olinda Landfill?]. unspecified locations Comment
  RSA687515  Lotus salsuginosus var. salsuginosus Fred M. Roberts, David E. Bramlet 2003-4-10 5653 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, ridges west of Cristianitos Canyon, 1.35km SW Gato Gate and 1.18km W Cristianitos Road. 192 Comment
  RSA0036646  Lotus salsuginosus var. salsuginosus 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
  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
  UCR220035  Lotus scoparius subsp. scoparius Rebecca T. Vo 2010-6-1 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
  UCR181165  Lotus scoparius var. scoparius R. E. Riefner Jr. 2006-7-2 06- 277 Orange South Coast, Costa Mesa, St. Route 73 at 55 Freeway interchange 20 Comment
  RSA391  Lotus strigosus J. T. Howell 1928-2-25 842 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  IRVC22208  Lotus strigosus var. strigosus Fred M. Roberts, Gordon Marsh 1985-4-3 1623 Orange Irvine: Irvine Ranch, just east of MacArthur, 1.4km W UCI campus center. Southern Coastal 30 Comment
  PASA1114  Lotus subpinnatus Frank W. Peirson 1922-5-18 Orange Santa Ana 137 Comment
  UCR207792  Ludwigia hexapetala O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  POM20186  Ludwigia peploides subsp. peploides L. M. Booth 1932-6-7 1164 Orange Newport Lagoon. Comment
  RSA698718  Lupinus albifrons L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA747605  Lupinus bicolor Fred M. Roberts 2000-4-27 5305 Orange Lomas de Santiago: Lomas Ridge, Agua Chinon Wash, 1.5 km S Bolero Spr. and 2.1 km WSW Bolero Lookout. 281 Comment
  RSA699292  Lupinus bicolor Jeanne Paxton 1934-4-30 s.n. Orange Orange County Dam Comment
  RSA407  Lupinus bicolor subsp. microphyllus J. T. Howell 1925-2-25 852 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  IRVC15179  Lupinus concinnus subsp. concinnus K. Conrey 1975-4-20 s.n. Orange Skyline Ranch Southern Coastal Comment
  RSA619240  Lupinus densiflorus R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  SEINET10906962  Lupinus excubitus subsp. hallii Stark 1933-2-3 STARK 18897 Orange Garden #6455 from 1780 (many generations!). Comment
  CAS-BOT-BC215310  Lupinus excubitus var. excubitus C. B. Wolf 1931-5-20 2056 Orange Along Santa Fe RR, 1 mile W of Esperanza, Santa Ana Canyon 106 Comment
  IRVC2308  Lupinus excubitus var. hallii B. Mawdsley 1965-5-2 s.n. Orange Cleveland National Forest; Silverado [Canyon]. Santa Ana Mountains Comment
  RSA503884  Lupinus excubitus var. hallii M. B. Dunkle 1938-5-28 5285 Orange San Juan Canyon Comment
  RSA91198  Lupinus excubitus var. hallii F. W. Peirson 1925-4-10 5740 Orange In Silverado Canyon. 610 Comment
  RSA598965  Lupinus hirsutissimus Scott D. White 1997-3-28 4837 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 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
  IRVC20367  Lupinus hirsutissimus Fred M. Roberts 1983-3-16 931 Orange Laguna Beach: Sycamore Hills, central ridge, 1.1km NNE jct. El Toro and Laguna Canyon Rds.; 5.4km [ESE] Signal Peak. Southern Coastal 156 Comment
  RSA542383  Lupinus longifolius Fred M. Roberts, T. Sholars, B. Stechmeyer 1988-3-29 3888 Orange Lomas De Santiago: Lomas Ridge, Santiago Canyon Road, 5.5km NW Silverado Canyon Road Jct. 256 Comment
  JEPS65473  Lupinus microcarpus var. microcarpus H. E. Malmsten 1928-4-27 Orange O Neill Ranch Comment
  RSA722339  Lupinus sparsiflorus R. H. McArthur 1934-3-25 s.n. Orange Field W. of Irvine Park. Comment
  IRVC2302  Lupinus sparsiflorus subsp. sparsiflorus B. Newman 1965-4-14 s.n. Orange Dana Point. Southern Coastal Comment
  IRVC8674  Lupinus sparsiflorus subsp. sparsiflorus Charles W. Sexton 1965-3-27 s.n. Orange Ortega Highway out of San Juan Capistrano Southern Coastal Comment
  RSA414283  Lupinus sparsiflorus subsp. sparsiflorus M. B. Dunkle 1938-3-26 5234 Orange San Juan Canyon 30 Comment
  RSA113262  Lupinus sparsiflorus subsp. sparsiflorus E. K. Balls 1955-4-4 20426 Orange San Juan Creek along Hwy 74, San Juan Capistrano to Elsinore. 46 Comment
  IRVC22003  Lupinus succulentus Fred M. Roberts, Gordon Marsh 1985-3-12 1525 Orange mesa west of Ave. Pico and north of El Camino Real, 3.2km SSE Coyote Bluff; 0.6km E Bench Mark 16 (sect. 32), San Clemente 37 Comment
  RSA507484  Lupinus succulentus Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment
  RSA660287  Lupinus succulentus Orlando Mistretta 1992-6-2 454 Orange Vicinity of Sierra Peak. (Historical Locality). Comment
  UCR262009  Lupinus succulentus Dick Newell, Don Millar 2015-2-17 388 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Haul Road 0.5 mi. east of 241 Toll Rd./Foothill Transp. Corridor 311 Comment
  RSA0058062  Lupinus succulentus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49660 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA678723  Lupinus truncatus Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5852 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  RSA681014  Lupinus truncatus Fred M. Roberts, D. E. Bramlet 2003-3-13 5580 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 207 Comment
  SEINET7062958  Lychnis coronaria A. G. Vestal 1947-6-12 s.n. Orange Santiago Creek Valley 0.4 mile below Silverado Canyon Fork. UTM Zone 11, 438682mE, 3733866mN. (WGS84/NAD83). 384 Comment
  SD248502  Lycium brevipes var. hassei R. E. Jr. Riefner 2006-3-19 06 58 Orange City of San Clemente, San Clemente State Beach, SSW ca. 100 m from the intersection of Ave. Calafia and South Ola Vista Rd. Along trail. 39 Comment
  CAS-BOT-BC233469  Lycium californicum Helen D. Geis 1902-1-1 581 Orange Laguna Beach Comment
  OBI9188  Lycium californicum Dieter H. Wilken, Timothy LeBlanc 1966-1-7 621 Orange Dana Point, N of San Juan Capistrano 3 Comment
  POM4211  Lycium californicum D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  POM4215  Lycium californicum D. L. Crawford 1916-7-24 741 Orange Laguna Beach. Comment
  UCD169742  Lythrum californicum R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49631 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs. 205 Comment
  UC537266  Lythrum hyssopifolia Lawrence M. Booth 1932-7-19 1282 Orange Bolsas March Comment
  CAS-BOT-BC334710  Madia gracilis A. C. Sanders; Mitch Provance 2008-5-20 35390 Orange Lomas de Santiago mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon c. 1/2 mile below Modjeska Canyon confluence, Santa Ana Mountains, Peninsular Range 365 Comment
  UCR18628  Madia gracilis John C. Roos 1960-5-30 s.n. Orange Peninsular Ranges; Santa Ana Mtns, ridge at head of Hagador Canyon 1070 Comment
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Jan 7 2013
  CAS-BOT-BC206238  Malacothamnus fasciculatus Ethel H. Campbell 1921-5-1 88 Orange Between Oceanside and San Juan Capistrano. Comment
  CAS-BOT-BC206252  Malacothamnus fasciculatus C. B. Wolf 1931-7-25 1166 Orange Along the road at north side of the Pear Orchard, Rancho Santa Ana, Santa Ana Can. 121 Comment
  OBI12364  Malacothamnus fasciculatus Louis C. Wheeler 1932-7-9 941 Orange Santa Ana River, 5 mi below Prado 152 Comment
  UC527450  Malacothamnus fasciculatus C. B. Wolf 1931-7-25 2294 Orange Rancho Santa Ana, along road at N side of Pear Orchard Santa Ana Canyon 121 Comment
  UCR197686  Malacothamnus fasciculatus A. C. Sanders, Fred M. Roberts 2008-9-18 36064 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  POM8303  Malacothrix glabrata P. A. Munz, R. D. Harwood 3384 Orange Temescal Canyon. 366 Comment
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Jul 6 2014
  RSA714449  Malacothrix saxatilis var. saxatilis R. E. Riefner 1999-5-22 99 -289 Orange City of Dana Point, beach west of Pacific Coast Hwy. South of Salt Creek near Ritz Carlton Hotel. 15 Comment
  RSA714451  Malacothrix saxatilis var. saxatilis R. E. Riefner 1999-8-21 99 -360 Orange Laguna Beach, west of Pacific Coast Hwy., vicinity of Aliso Creek Park and south to West Drive. 0 Comment
  CAS-BOT-BC347890  Malacothrix saxatilis var. tenuifolia John Thomas Howell 1927-6-9 2463 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 152 Comment
  POM201784  Malacothrix saxatilis var. tenuifolia L. M. Booth 1932-7-27 1319 Orange Corona del Mar, Newport Bay. Comment
  POM201684  Malosma laurina L. M. Booth 821 Orange Santa Ana Canyon. Comment
  RSA751794  Malosma laurina A. C. Sanders, Fred M. Roberts 2008-7-3 35685 Orange upper Weir Canyon, along Windy Ridge Rd. at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  RSA0051388  Malosma laurina Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49609 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-BC206641  Malva assurgentiflora L. R. Abrams 1917-6-23 6577 Orange Balboa Comment
  RSA734957  Malva parviflora Keith E. Hoffmaster 1927-1-9 455 Orange Santa Ana 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
  RSA650629  Malva parviflora Daniel Truong 1991-5-13 20 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  RSA0093741  Malvella leprosa Fred M. Roberts 2014-4-21 7849 Orange South Coast. SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin. 113 Comment
  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
  CDA35815  Malvella leprosa Robert L. Pope 1957-5-17 Orange [No other data] 0 Comment
  UCR191342  Marah macrocarpa A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34619 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  UCR223414  Marah macrocarpa Dick Newell, Don Millar 2011-2-15 063 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  UCD41240  Marah macrocarpa Richard D. Luedke 1976-4-21 9 Orange Southeast Orange County. 12 miles east of El Toro on road S 19, Trabuco Canyon. Foothills of Santa Ana Mountains. Comment
  RSA748270  Marrubium vulgare A. C. Sanders, Fred M. Roberts 2008-6-17 35511 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR193351  Marrubium vulgare A. C. Sanders 2008-5-28 35440 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCR209346  Marrubium vulgare Fred M. Roberts 2008-4-15 6903 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, east ridge, Conservation Trail, 1.6 km east-southeast of Rattlesnake Reservoir Dam and 2.7 km west-southwest of Bee Peak, Irvine Ranch Conservancy 172 Comment
  RSA697834  Marrubium vulgare Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  UC1543207  Matricaria discoidea Donald G. Nelson 1935-3-24 188 Orange s side Santa Ana Canyon (along highway to Riverside County, ne Orange County) Comment
  POM49391  Matricaria matricarioides L. R. Abrams 1901-6-12 1772 Orange Laguna. Comment
  UCR103165  Matricaria matricarioides Scott D. White 1997-3-26 4807 Orange Univ. of Calif. Irvine Campus, east of main campus at site of proposed student recreation center, east of main campus, between California Avenue and Culver Drive. 40 Comment
  RSA113265  Matthiola incana E. K. Balls 1955-4-4 20423 Orange Coastal Strand, west end of Newport Beach. 3 Comment
  CDA6380  Mazus japonicus W. Humphrey 1973-7-19 Orange 7231 Irvine Boulevard, Santa Ana. 0 Comment
  POM7620  Meconella denticulata P. A. Munz, R. D. Harwood 1920-4-25 6719 Orange Shady hillside by road in Silverado Canyon, Santa Ana Mts. 549 Comment
  RSA797820  Meconella denticulata Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49809 Orange Santa Ana Mountains: Trabuco Canyon. 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
  UCR230230  Medicago polymorpha Dick Newell, Don Millar 2011-3-15 079 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 219 Comment
  RSA755559  Medicago rigidula A. C. Sanders, Fred M. Roberts 2008-3-25 34527 Orange Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA746484  Medicago rigidula R. E. Riefner Jr. 2008-5-1 08 -73 Orange City of San Juan Capistrano, San Juan Creek area, ca. 0.2 mi W of intersection of Paseo Tirador and Calle Arroyo St. 31 Comment
  UCR192092  Medicago truncatula A. C. Sanders, Fred M. Roberts 2008-5-6 35258 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
  UCR187356  Melaleuca citrina R. E. Riefner Jr. 2005-11-23 05- 773 Orange South Coast, Newport Beach (city), Upper Newport Bay, east of Jamboree Rd and south of Bayview Way at Bonita 6 Comment
  CAS-BOT-BC414241  Melaleuca viminalis R. E. Riefner, Jr. 2014-7-13 14 -242 Orange City of Seal Beach, N side of Westminster Blvd., ca. 0.2 mi W of Road B 5 Comment
  UC1929696  Melaleuca viminalis R. E. Riefner Jr. 2007-4-1 07 -163 Orange City of Laguna Niguel, Oso Creek, ca. 1.5 mi N from Paseo De Colinas St. on Camino Capistrano St. Comment
  SD144119  Melica frutescens Scott D. White 1997-3-28 4840 Orange Above Modjeska Canyon, proposed water tank site 424 Comment
  UCR98486  Melica frutescens Scott D. White 1997-3-28 4840 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  CAS-BOT-BC94724  Melica imperfecta R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-3-24 718 Orange Chino Hills State Park. South Ridge Road W of San Juan Hill, going W from Equestrian Staging Area. Top of ridge 1450 Comment
  POM182773  Melica imperfecta Marcus E. Jones 1925-3-13 s.n. Orange North end, Santa Ana Canyon Comment
  RSA403491  Melica imperfecta A. M. Johnson 1934-4-15 4416 Orange Carmen's Laguna Comment
  RSA697761  Melica imperfecta Aileen Adams 1932-4-29 s.n. Orange Slope above dam. [Orange Co.?] Comment
  RSA743516  Melica imperfecta Fred M. Roberts 2008-4-9 6883 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  RSA751312  Melica imperfecta A. C. Sanders, Fred M. Roberts 2008-5-6 35265 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
  UCSB52460  Melica imperfecta Roberts, Fred 1983-3-10 Orange Dana Point Headlands; cliff above Dana Point Harbor, south of old Cove Rd.: 0.8 km S Richard Henry Dana School 60 Comment
  IRVC2395  Melilotus albus D. W. Bryant 1965-3-28 s.n. Orange Laguna Canyon; Laguna Canyon Rd. Southern Coastal Comment
  UCR223421  Melilotus albus Dick Newell, Don Millar 2011-3-1 067 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  IRVC22205  Melilotus indicus Fred M. Roberts, G. A. Marsh 1985-4-3 1620 Orange Irvine; Irvine Ranch, 1.2km W UCI campus center. Southern Coastal 22 Comment
  IRVC2408  Melilotus indicus Polly Brecht 1965-3-30 s.n. Orange Newport Beach; Corona del Mar, Corona del Mar High School. Southern Coastal Comment
  IRVC2413  Melilotus indicus Kathy Durica 1965-4-25 s.n. Orange Silverado Canyon Santa Ana Mountains Comment
  RSA732120  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-4-8 34722 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  RSA743458  Melilotus indicus Fred M. Roberts 2008-3-19 6786 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 60 Comment
  RSA759267  Mentzelia Robt. Allen, Reginald Durant, David Taylor 2008-4-11 s.n. Orange Silverado Canyon, circa 1 air mile EENE above Maple Springs Forest Gate. 666 Comment
  RSA539390  Mentzelia micrantha Fred M. Roberts, Carol A. Roberts 1988-6-2 4039 Orange Santa Ana Mtns: Silverado Canyon, Maple Springs Truck Trail, 4.3km above gate. 1.0 km WSW Bald Peak. 817 Comment
  RSA759212  Mentzelia veatchiana Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, S face, base of a steep fire break cut from the summit down to the access road. Survey point 61. 1634 Comment
  CAS-BOT-BC435233  Mesembryanthemum crystallinum Carl B. Wolf 1927-7-23 667 Orange Just no. of San Clemente 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
  RSA65535  Mesembryanthemum nodiflorum F. W. Peirson 1920-6-25 2209 Orange 5 miles south of San Juan Capistrano. Comment
  UC1952573  Microseris douglasii subsp. platycarpha D. Bramlet 1994-4-30 2375 Orange At the base of the San Joaquin Hills and east of the Quail hill area. Open flatlands 152 m NW of the end of San Canyon Ave. and some 396 m south of the San diego freeway. Comment
  RSA651500  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-12 2972 Orange Fremont Canyon. The site is 183m south of the existing access road on the north ridge of the canyon. The site is 1.37km northeast of Santiago Creek. 336 Comment
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Feb 21 2007
  UCR209371  Microseris heterocarpa Fred M. Roberts, Linda Farley 2008-3-28 6817 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
  RSA598918  Microseris lindleyi Scott D. White 1997-3-28 4846 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA606307  Microsteris gracilis subsp. gracilis Jon E. Keeley 1994-4-5 25264 Orange First year burn, east end of Caspers Park S-7 (Keeley 1994). 215 Comment
  UC1424855  Mimulus Bennett, Dunn and Dziekanowski 1976-7-21 439 Orange Pacific Island Estates condominium Laguna Hills Comment
  UC943890  Mimulus H. E. McMinn, M. Van Rensselaer 1945-6-9 1910 AB Orange ca. 5 mi e Laguna Beach (on Laguna Canyon Highway) Comment
  POM311167  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-9 1909 -H&I Orange North slope Laguna Canyon ca. 4 mi. east of Laguna Beach. Comment
  POM311168  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-9 1909 -ABC Orange North slope Laguna Canyon ca. 4 mi. east of Laguna Beach. Comment
  RSA551152  Mimulus aurantiacus var. pubescens David M. Thompson 1992-5-16 1066 -a Orange 2.4 mi. N and W of Hwy 74 along USFS Rd. 3S04 (N side of paves loop allowing access to Main Divide Rd.) 945 Comment
  UCSB25548  Mimulus aurantiacus var. pubescens Van Rensselaer, Maunsell 1944-11-26 Orange Laguna Canyon; about 2 mi. northeast of Laguna Beach Comment
  RSA747634  Mimulus aurantiacus var. puniceus Fred M. Roberts 2008-5-16 6981 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  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
  RSA790707  Mimulus brevipes R. H. McArthur 1934-4-28 16 Orange Trabuco and Ladd Canyons. PR8. Comment
  UCR193810  Mimulus cardinalis A. C. Sanders, Fred M. Roberts 2008-7-16 35832 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, canyon c. 0.12 mi. below Dripping Spring, c. 7.5 mi. ESE of Tustin 360 Comment
  UCR230839  Mimulus clevelandii Dick Newell, Judy Booth 2011-6-19 181 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, above Santiago Canyon 1086 Comment
  POM193491  Mimulus floribundus Helen E. Sweet 1928-08 s.n. Orange Santiago Canyon. Comment
  RSA790705  Mimulus guttatus W. Blanchard 1932-5-1 s.n. Orange Santiago Canyon. PR8. Comment
  UC26966  Mimulus guttatus C. W. Hamlin 1896-1 61 Orange Buena Park Comment
  UCR193318  Mimulus guttatus A. C. Sanders, T. B. Salvato 2008-5-13 35387 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR175448  Mimulus pilosus Mark A. Elvin 2005-9-2 4491 Orange Peninsular Ranges, Santa Ana Mtns: along San Juan Creek c. 1.0 km upstream from San Juan Hot Springs, off Ortega Hwy (74) near the bridge 259 Comment
  UCR190984  Mirabilis laevis A. C. Sanders, Fred M. Roberts 2008-4-22 34994 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
  CAS-BOT-BC434667  Mirabilis laevis var. crassifolia P. A. Munz; R. D. Harwood 1920-4-24 3739 Orange Santa Ana Mts., Sierra Canyon 365 Comment
  RSA585058  Mirabilis laevis var. crassifolia D. Atwood 1993-3-27 17707 Orange Corona Del Mar State Park along Newport Coast Drive. 0 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
  UCD98396  Mirabilis multiflora G. H. Vansell 1933-6-30 s.n. Orange location unknown. 914 Comment
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Sep 26 2020
  SBBG93266  Mollugo verticillata D. G. Nelson 1936-7-26 442 Orange mesa N of Newport Beach, Costa Mesa Comment
  RSA0010774  Mollugo verticillata L. R. Abrams 1901-06 1769 Orange Laguna Comment
  JEPS22597  Monanthochloe littoralis Lawrence M. Booth 1932-7-27 1318 Orange Newport Bay Comment
  POM1190  Monanthochloe littoralis D. L. Crawford 1928-07 s.n. Orange Abalon Pt. Comment
  UCR14057  Monanthochloe littoralis Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 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
  UCR158814  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31613 Orange Santa Ana Mtns., near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak 998 Comment
  UCR193800  Monardella hypoleuca subsp. intermedia A. C. Sanders, Fred M. Roberts 2008-7-3 35681 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA539388  Monardella lanceolata var. lanceolata Fred M. Roberts, Carol A. Roberts 1988-6-10 4092 Orange Santa Ana Mountains: Main Divide Truck trail, Modjeska Peak, west slope, 1.1 km SW summit. 1524 Comment
  RSA12738  Monardella macrantha subsp. hallii Carl B. Wolf 1933-8-24 5406 Orange Santa Ana Mountains:along main divide motorway on west slope of Modjeska Peak 1372 Comment
  UC2035996  Monardella macrantha subsp. hallii P. C. Everett 1935-6-19 7223 Orange Santa Ana Mts., Main Divide Motorway 1.5 mi below summit Santiago Peak, E slope 1310 Comment
  IRVC27048  Monardella viminea Mark A. Elvin 2005-2-8 3989 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC26748  Moraea tricolor Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3178 Orange UCI Arboretum Southern Coastal 15 Comment
  UC971743  Muhlenbergia microsperma L. M. Booth 1932-6-29 1226 Orange Newport Bay Comment
  UCSB48056  Muilla maritima Roberts, Fred 1982-4-3 Orange Dana Point: hills, 1.0km N Dana Hills High School; 1.9km W Marco Forster Junior High School 100 Comment
  UCR102000  Myoporum laetum B. G. Pitzer 1997-3-25 3034 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, on bluffs immediately above beach, along trail that winds around restoration area and down to beach. 30 Comment
  RSA0125893  Myoporum sandwicense Fred M. Roberts 2012-5-9 7551 Orange Lake Forest: near Serrano Creek, utility road, 0.3 km SSW intersection of Commerce Centre and Dimension Drives. 206 Comment
  CAS-BOT-BC219359  Nama stenocarpa Le Roy Abrams 1901-6-13 1770 Orange Laguna Comment
  CAS-BOT-BC523924  Nama stenocarpa D. E. Bramlet 2002-4-14 3269 Orange Laguna Lakes 112 Comment
  POM202029  Nama stenocarpa L. M. Booth 1932-7-1 1235 Orange Anaheim Marsh Comment
  POM6290  Nama stenocarpa P. A. Munz 1919-5-4 2681 Orange Laguna Canyon. Comment
  CAS-BOT-BC259968  Nassella lepida Carl B. Wolf 1932-3-8 2682 Orange 0.5 mile N of Corona Del Mar, Borders of Newport Bay 7 Comment
  RSA598968  Nassella lepida Scott D. White 1997-3-28 4839 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA638967  Nassella lepida Valerie L. Soza, LeRoy Gross 1999-6-8 500 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA684300  Nassella lepida Fred M. Roberts 2003-3-19 5606 Orange Donna O'Neill Land Conservancy: Ridges west of Cristianitos Cyn., 1,750m NNW Sycamore gate and 315m W Cristianitos Rd. (Canada Gobernadora., 33 deg 29'51'' N, 117 deg 34'13''W 192 Comment
  RSA697693  Nassella lepida Anonymous s.n. Orange Orange County park Comment
  RSA749291  Nassella lepida Fred M. Roberts 1999-4-2 5169 Orange Lomas de Santiago: Loma Ridge, Dripping Springs Spur Rd., 2.3 km W Silverado Sch. and 5.1 km NW Bolero Lookout. 450 Comment
  UCD87799  Nassella lepida A. A. Beetle 1942-4-19 3097 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  RSA602779  Nassella pulchra R. E. Riefner Jr., Tony Bomkamp, R. Ramirez 1997-6-11 97 -181 Orange Black Star Canyon, Hidden Ranch. 610 Comment
  RSA747596  Nassella pulchra Fred M. Roberts 2000-5-19 5329 Orange Lomas de Santiago: Loma Ridge, ridge west of Bee Peak above Bee Cyn. landfill, 0.2 km W Bee Peak. 500 Comment
  RSA330  Nasturtium officinale J. T. Howell 1927-7-15 404 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  RSA16383  Navarretia atractyloides E. R. Johnson 1935-6-11 7133 Orange Rancho Santa Ana, Santa Ana Canyon grain field west of grapefruit orchard. 137 Comment
  RSA626153  Navarretia prostrata R. E. Riefner 1998-5-15 98 -326 Orange San Clemente State Beach, SW end of park Comment
  SBBG126175  Nemacaulis denudata var. denudata O. F. Clarke 2003-5-7 Orange Least Tern Reserve, just N of mouth of Santa Ana River; Huntington Beach 4 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
  UCR230830  Nemacaulis denudata var. denudata Dick Newell 2011-6-17 176 Orange South Coast, Bolsa Chica Beach, Pacific Coast Hwy near Santa Ana River 5 Comment
  SEINET10939173  Nemacladus ramosissimus Philip A. Munz 1923-9-7 Munz 7769 Orange Santa Anna Mountains, on slopes along trail from Holy Jim Canyon to Santiago Peak 1128 Comment
  RSA682600  Nemophila menziesii Scott D. White, Amanda Duchardt 2003-3-27 8865 Orange Santa Ana Mountain Foothills: Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA733619  Nemophila menziesii Minor Warne 1934-03 s.n. Orange Near El Toro Comment
  POM347132  Nemophila menziesii var. integrifolia Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. Comment
  RSA12926  Nemophila menziesii var. integrifolia Carl B. Wolf 1935-4-7 6316 Orange San Juan Canyon, Ortega Hwy, 2 miles east Orange County. 762 Comment
  RSA75869  Nemophila menziesii var. integrifolia F. W. Peirson 1923-5-6 3495 Orange Large patches on summit region. Santiago Peak, Santa Ana Mts 1723 Comment
  UCSC000895  Nemophila menziesii var. integrifolia Don Keenan 1968-3-24 s.n. Orange damp rocky base of slide in canyon bottom Santa Ana Mts., Holy Jim Canyon Comment
  UC2041999  Nephrolepis cordifolia R. E. Riefner Jr. 2014-6-14 14 -171 Orange City of Newport Beach, Cliff Drive Park, along Cliff Dr. near Beacon St. Comment
  IRVC151  Nephrolepis cordifolia Barbara Mawdsley 1965-5-1 HS 540 Orange Corona del mar; Marigold Street. Southern Coastal Comment
  RSA708532  Nerium oleander Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6107 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, c.a. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  RSA0020230  Nicotiana clevelandii Philip A. Munz 1923-4-4 s.n. Orange Laguna Beach. Comment
  CAS-BOT-BC231674  Nicotiana glauca C. L. Hitchcock 1966-3-15 24144 Orange Stearns Lease, 1 1/2 miles e. of Brea Comment
  LA45882  Nicotiana glauca W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA731971  Nicotiana glauca A. C. Sanders, Fred M. Roberts 2008-4-8 34738 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  RSA0042735  Nicotiana glauca David Barrios 1991-5-8 25 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  JEPS12369  Nicotiana quadrivalvis Alice King Apr 1908 Orange Santiago Creek; Santa Ana Mountains Comment
  RSA0020234  Nicotiana quadrivalvis Gray s.n. Orange Orange Park Acres. Comment
  RSA615785  Nolina cismontana James C. Dice, Oberbauer 1986-5-3 651 Orange 0.2 km west of Trabuco Canyon. 365 Comment
  RSA716093  Nolina cismontana Fred M. Roberts, Carol A. Roberts 2006-4-28 6323 Orange Mision Viejo: near Vista del Lago Dr., 0.9km NE jct. Vista del Lago and Los Alios Blvd., 1.7km NNW Lake Mission Viejo dam. 211 Comment
  RSA759249  Nolina cismontana Robt. Allen, Celia Kutcher 2007-5-19 s.n. Orange San Juan Trail, circa 3.4 air miles (5458m) below (southwest of) trailhead at southern edge of Blue Jay Campground, circa 1.3 air miles (2121m) above (northeast of) trailhead at Hot Springs Canyon. 736 Comment
  SD204870  Nolina cismontana R. E. Riefner Jr. 2007-6-14 07 256 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, west fork Fremont Canyon, Donaldson Ranch area. 381 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
  UCR192095  Nolina cismontana A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35290 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA17145  Oenothera californica subsp. californica Carl B. Wolf 1936-6-12 7944 Orange 1 mile E of Atwood. 91 Comment
  UCR222862  Oenothera elata T. B. Salvato 2010-10-27 5130 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  POM225243  Oenothera elata subsp. hirsutissima P. A. Munz 1936-6-30 14176 Orange About 6 miles south of Garden Grove. Comment
  RSA562725  Olea europaea Steve Boyd 1992-5-20 7461 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
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Feb 4 2016
  UC634679  Oligomeris linifolia Herbert L. Mason 1926-4-25 2905 Orange 5 mi s Laguna (above sea) Comment
  UCR235514  Oncosiphon piluliferum R. E. Riefner Jr. 2011-5-20 11- 57 Orange South Coast, Newport Beach, Coastal Peak Park, East Coastal Peak Road at Ridge Park Road 305 Comment
  OBI37767  Opuntia X occidentalis Unknown 1971-5-8 MGM 434 (=DLW 63) Orange N. Euclid Ave, W side of Fullerton, 1/2 mi N of Bastanchury Comment
  POM279574B  Opuntia X occidentalis Lyman Benson 1950-4-29 14340 Orange South end of San Clemente. Hill 1/2 mile from ocean. 152 Comment
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Oct 21 2009
  RSA562722  Opuntia X occidentalis Steve Boyd, Timothy S. Ross 1992-5-19 7425 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon. 366 Comment
  POM284094B  Opuntia littoralis Lyman Benson 1955-10-17 15598 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  POM284094C  Opuntia littoralis Lyman Benson 1955-10-17 15598 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  UCR222870  Opuntia littoralis T. B. Salvato 2010-10-27 5125 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
  UCR263408  Opuntia littoralis A. C. Sanders 2008-4-29 35122 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  RSA542651  Opuntia littoralis var. vaseyi Fred M. Roberts, Carol A. Williams 1988-4-12 3924 Orange Lomas de Santiago: Loma Ridge, 3.3 km NW Bolero Lookout. 475 Comment
  IRVC26535  Opuntia molesta Mark A. Elvin 2004-5-22 3453 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA6610  Opuntia oricola B. D. Stark 1933-1-21 4520 Orange San Clemente. 15 Comment
  POM317064  Opuntia vaseyi David Walkington 1961-9-4 9 Orange South of Skyline Dr. east of Acacia Dr., Fullerton. 107 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
  JEPS126146  Orobanche californica subsp. jepsonii Bob Allen with Alison Colwell 2005-7-21 05 -101 Orange Whiting Ranch Wilderness Park. Comment
  POM17442  Orthocarpus purpurascens Philip A. Munz 1923-4-1 6599 Orange Laguna Canyon. 122 Comment
  RSA0054847  Orthocarpus purpurascens Keith E. Hoffmaster 1927-4-2 531 Orange Santa Ana Mts. San Onofre. Comment
  IRVC29090  Orthocarpus purpurascens var. purpurascens Fred M. Roberts 1989-3-17 4205 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA184120  Oryza sativa I. L. Wiggins 1965-11-6 20335 Orange Drainage gutter near railway right of way, along west side of Atwood Comment
  CAS-BOT-BC355776  Osmadenia tenella Agnes M. Bowman 1899-6-1 s.n. Orange Santiago Cr. Comment
  CDA25867  Osteospermum ecklonis Mark A. Elvin, D. G. Kelch, B. S. Herhus, Patricia Iluore 2006-12-9 5326 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 100 miles west of Eastbluff Drive. Comment
  SEINET10801634  Osteospermum ecklonis Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-7-21 Bennett 433 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  RSA518448  Oxalis albicans subsp. californica C. W. Tilforth, Dorothy Tilforth 1977-3-6 1258 Orange Small canyon west of Gypsum Canyon, south side of Santa Ana River, Santa Ana Canyon 152 Comment
  UCR230239  Oxalis albicans subsp. pilosa Dick Newell, Don Millar 2011-3-15 086 Orange Peninsular Range; Santa Ana Mtns., MWD Road, east of Outdoor Education Center, 1.8 miles NW (312 deg. ) of Irvine Lake dam 239 Comment
  POM212355  Oxalis californica Carl B. Wolf 1931-3-6 1858 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  UCR10199  Oxalis californica Diane Terrel 1969-5-6 s.n. Orange Peninsular range; Santa Ana Mtns., Tucker Bird Sanctuary northeast of El Toro in Modjeska Canyon 427 Comment
  UCSB52920  Oxalis californica Roberts, Fred 1983-3-10 Orange Dana Point Headlands: just south of Pacific Coast Hwy, 0.5km northwest Dana Point Harbor; 0.5km WSW Richard Henry Dana School 85 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
  RSA737550  Oxalis pes-caprae Fred M. Roberts 2008-3-12 6738 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UCR237933  Oxalis pes-caprae Mark A. Elvin 2003-2-2 2259 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCSB48068  Oxalis pes-caprae Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point: hills, 1.0km N Dana Hills High School; 1.9km W Marco Forster Junior High School 100 Comment
  OBI30391  Oxalis pes-caprae B. Thomas 1967-12-30 147 -74 Orange 4 yds S of Cal State Fullerton's Science Bldg entrance in the fl bed Comment
  RSA16483  Oxytheca trilobata Percy C. Everett 1935-6-19 7224 Orange Santa Ana Mountains, Main Divide Motorway 1.5 mi. below summit Santiago Peak, E slope. 1311 Comment
  UCR227627  Oxytheca trilobata Robt. L. Allen 2003-6-22 12281 Orange Santa Ana Mountains, along North Main Divide Road, 6.3 road mi north of Falcon Group Campground, c. 2.43 air mi northwest of Los Pinos Saddle 1334 Comment
  RSA698740  Paeonia californica Mary Oliver s.n. Orange Santa Ana canyon. Comment
  UC1618048  Panicum acuminatum Donald G. Nelson 1935-4-6 254 Orange e. San Juan Capistrano (200-300 ft. below main hwy., ca. 4 mi. from summit, San Juan Canyon); San Juan Canyon Comment
  UCSB52890  Panicum capillare Roberts, Fred 1984-10-18 Orange Santa Ana Mtns.: San Juan Canyon, 2.5 km. ENE San Juan Guard Station; 4.0 km. WNW Sitton Peak 310 Comment
  RSA594821  Papaver californicum Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4915 Orange Santa Ana Mountains: San Juan Canyon, CA route 74, Lower San Juan Picnic Ground. 354 Comment
  POM412  Papaver californicum Crocker 1916-3-28 s.n. Orange Santa Ana Mts. Comment
  POM2138  Parietaria hespera var. hespera D. L. Crawford 1916-5-15 991 Orange Languna Canyon. Shade Comment
  RSA725537  Parthenocissus inserta Fred M. Roberts, Robert L. Allen 2007-9-28 6609 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  RSA702938  Paspalum dilatatum Scott D. White 2004-7-7 10604 Orange Laguna Niguel. 61 Comment
  RSA21040  Paspalum distichum E. R. Johnson 1938-8-22 9452 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA748265  Paspalum distichum A. C. Sanders, Fred M. Roberts 2008-6-17 35499 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
  OBI74742  Paspalum vaginatum R. E. Riefner, Jr and K. Campbell, K. Campbell 2008-8-31 08 -267 Orange City of Irvine, tidal portion of San Diego crk, immediately E of Hwy 73 overpass 1 Comment
  RSA733054  Paspalum vaginatum R. E. Riefner 2007-7-8 07 -304 Orange City of Laguna Niguel, Aliso Creek, Alica Pwky. at Park Way. 46 Comment
  RSA733138  Paspalum vaginatum R. E. Riefner 2007-10-17 7 -439 Orange City of Dana Point, Dana Point Harbor, Dana Point Harbor Dr. near Puerto Pl. 10 Comment
  SBBG133655  Paspalum vaginatum R. E. Riefner Jr. 2008-8-31 08 -267 Orange tidal portion of San Diego Crk, immediately E of Hwy 73 overpass; Irvine 0 Comment
  POM212414  Pectocarya linearis subsp. ferocula C. B. Wolf 1931-3-6 1846 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  CDA25877  Pelargonium Mark A. Elvin 2005-5-14 4313 Orange Southern Coastal; UCI Arboretum Comment
  IRVC27881  Pelargonium A. C. Sanders, Mark A. Elvin 2003-10-12 27314 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  UC185251  Pellaea andromedifolia Mrs. Carlotta C. Hall 1913-5-27 9407 Orange Santiago Canyon Comment
  UCR113460  Pellaea mucronata subsp. mucronata R. E. Riefner Jr. 2000-8-8 20- 719 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, NE property, E slope of upper Fremont Canyon, south of Donaldson Ranch and south of powerline/ National Forest boundary 454 Comment
  RSA610216  Pennisetum setaceum Fred M. Roberts 1997-4-19 5013 Orange San Juan Canyon along San Juan Creek at CA. Rte. 74 bridge just east of San Juan Hot Springs, 0.8km SSE Juan Rancho Surbey Mark 240 Comment
  CDA20319  Pennisetum villosum R. Tiffer 2004-11-9 PDR 1367133 Orange Anaheim. 1750 S. Douglass Road. Lawn weed. 0 Comment
  CHSC1848  Penstemon antirrhinoides S. Westerberg 1938-4-7 Orange San Juan canyon. Comment
  POM296908B  Penstemon centranthifolius Lyman D. Benson 1946-4-27 12050 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  RSA33780  Penstemon centranthifolius N. C. Cooper 1944-6-4 1351 Orange San Juan Canyon, lower camp ground. 457 Comment
  RSA0054891  Penstemon cordifolius Keith E. Hoffmaster 1941-7-14 1251 Orange At Blanding Nursery, Santa Ana. Comment
  UC1011907  Penstemon heterophyllus F. W. Pennell and E. M. Harvey 1949-6-29 26804 Orange Ortega Highway above San Juan Capistrano; above San Juan Capistrano Comment
  SEINET10334604  Penstemon heterophyllus subsp. australis Czarnecki 1966-5-25 113 Orange Old botanical gardens at the Ranco Santa Ana Comment
  POM18089  Penstemon heterophyllus var. australis Philip A. Munz 1923-9-7 7748 Orange Santiago Peak in Santa Ana Mountains. 1707 Comment
  RSA221077  Penstemon spectabilis E. W. Lathrop 1966-5-1 6257 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  CAS-BOT-BC330342  Pentachaeta aurea P. C. Everett 1935-4-22 6463 Orange Santa Ana Canyon, 0.25 mi W of Horseshoe Bend 121 Comment
  RSA751315  Pentachaeta aurea subsp. allenii A. C. Sanders, Fred M. Roberts 2008-5-6 35272 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  RSA687405  Pentagramma triangularis subsp. triangularis Norman C. Cooper 1949-5-1 3951 Orange San Juan Canyon 610 Comment
  IRVC14090  Pentagramma triangularis subsp. triangularis K. Marvosh 1966-5-3 Orange Silverado Canyon, 400yds S community center; moist, rocky, shaded bank of stream. Santa Ana Mountains Comment
  RSA0070736  Pentagramma viscosa I. M. Johnston 1918-5-4 1926 Orange Hills back of Laguna Beach. 152 Comment
  UCR186686  Persicaria lapathifolia T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1907 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  RSA539387  Phacelia brachyloba Fred M. Roberts, Carol A. Roberts 1988-6-2 4034 Orange Santa Ana Mtns: Silverado Canyon, Maple Springs Truck Trail, 4.3km above gate. 1.0 km WSW Bald Peak. 817 Comment
  POM49691  Phacelia cicutaria var. hispida L. R. Abrams 1902-1 512 Orange Santiago Creek Canyon. Comment
  RSA647938  Phacelia cicutaria var. hispida Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 26 Orange 1/2 mile south of Chino Hills State Park. 168 Comment
  RSA741728  Phacelia cicutaria var. hubbyi R. E. Riefner Jr. 2007-6-14 7 -257 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fremont Canyon, Windy Ridge area. 478 Comment
  RSA738989  Phacelia ciliata Norland 1929-3-16 s.n. Orange Huntington Beach Comment
  RSA500684  Phacelia distans M. B. Dunkle 1935-3-3 4348 Orange San Juan Canyon. 427 Comment
  RSA605  Phacelia distans J. T. Howell 1927-6-24 209 Orange Olinda 152 Comment
  RSA650516  Phacelia distans Shlomo Gat 1959-03 20 Orange Santa Ana Canyon. Comment
  RSA0041602  Phacelia douglasii Anstruther Davidson 1917-1 s.n. Orange Laguna. Comment
  UCR192740  Phacelia grandiflora A. C. Sanders, Fred M. Roberts 2008-5-6 35220 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  JEPS1176  Phacelia minor Mary Alice King March 1907 Orange Anaheim plains Comment
  RSA734633  Phacelia minor A. C. Sanders, T. B. Salvato 2008-5-13 35363 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA759251  Phacelia parryi 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
  RSA0027430  Phacelia ramosissima Fred M. Roberts 2013-7-18 7663 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
  UCR16840  Phacelia ramosissima N. J. Moriarty 1973-5-20 730520- 5 Orange Huntington Beach, 0.6 mi. north of Newland Street on the E side of Pacific Coast Hwy (= Hwy 1) Comment
  IRVC26742  Phacelia ramosissima Mark A. Elvin 2004-6-18 3525 Orange UCI Arboretum Southern Coastal 15 Comment
  JEPS1031  Phacelia ramosissima var. austrolitoralis L. M. Booth 1932-5-19 1060 Orange Newport Bay Comment
  UC729652  Phacelia ramosissima var. austrolitoralis Carl B. Wolf 1932-6-13 3716 Orange Malvern and Nicholas Aves. Fullerton 53 Comment
  CAS-BOT-BC154389  Phacelia ramosissima var. latifolia John Thomas Howell 1927-7-16 2780 Orange hill on north side of Santa Ana [Canon] Canyon 152 Comment
  IRVC19700  Phalaris aquatica Karlin G. Marsh 1983-5-25 s.n. Orange Sycamore Hills, Laguna Canyon; freshwater marsh between Laguna Canyon laterals 6 & 7. Laguna Beach Comment
  UCR150384  Phalaris lemmonii D. E. Bramlet 1999-5-16 2764 Orange South Coast, Fairview Park, City of Costa Mesa. Some 336 m N of the intersection of Wilson and Canyon Dr. and 152 m west of the Canyon School, on a mesa overlooking the Santa Ana River 43 Comment
  CAS-BOT-BC250614  Phalaris minor Carl B. Wolf 1932-5-18 3636 Orange Rancho Santa Ana Botanic Garden, near East porch of administration bldg. 198 Comment
  CDA22545  Phalaris minor J. B. Anderson 1966-4-18 597 Orange Mac Arthur Boulevard near Red Hill Road. 0 Comment
  UCR193585  Phalaris minor A. C. Sanders, T. B. Salvato 2008-5-13 35367 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
  UCR97073  Phalaris minor Scott D. White 1993-4-28 1286 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  RSA0011626  Phalaris minor Rankin s.n. Orange Costa Mesa. Comment
  IRVC1783  Phalaris paradoxa J. B. Anderson 1966-4-26 620 Orange UC, Irvine Campus; S of Science Lecture Hall. Southern Coastal 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
  LA205660  Pholistoma auritum var. auritum A. M. Johnson; 1934-4-15 4418 Orange Laguna Beach Comment
  UCSB41810  Phoradendron leucarpum subsp. tomentosum Hufstader, R. 1971-3-24 Orange Trabuce Canyon approx. 7 miles from Santiago Cyn. Rd, 426 Comment
  UCR193776  Phoradendron macrophyllum A. C. Sanders, Fred M. Roberts 2008-7-3 35699 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  UCR234134  Phoradendron villosum Dick Newell 2011-12-27 221 Orange Peninsular Range; Santa Ana Mtns. Region, Lomas de Santiago, along Hicks Haul Rd./Jeffrey Rd. south of Augustine Staging Area/Santiago Canyon rd. 314 Comment
  RSA650  Phyla lanceolata J. T. Howell 1927-7-15 401 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  UCR90501  Phyllospadix torreyi F. M. Reed 1933-6-11 7858 Orange South Coast, Reef at San Juan Capistrano Comment
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May 1 2011
  RSA0127409  Physalis crassifolia Fred M. Roberts 2016-5-25 8062 Orange Irvine: San Joaquin Hills, Turtle Rock Community, tributary to Shady Canyon, 1.2 km SE summit of French Hill between Alejo and Tradewind Roads. 107 Comment
  CDA25206  Picris echioides A. C. Sanders, Fred M. Roberts 2008-8-7 35993 Orange Peninsular Range; Santa Ana Mountains.; Lower Weir Canyon, at narrow gorge c. 0.6 mile above mouth of canyon at Irvine Ranch gate. Comment
  POM202174  Picris echioides L. M. Booth 1932-6-7 1168 Orange Newport Lagoon. Comment
  RSA472042  Picris echioides James Henrickson 1970-7-25 5037 Orange 2.5 miles NE of Huntington beach, 1 mile SE of Warner Ave. on sandy slope of E. Pacific Coast Hwy. at border of Bolsa Chica Salt Marsh. 0 Comment
  UCR46555  Picris echioides B. G. Pitzer, D. C. Hawks 1986-10-21 0353 A Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, c. 10 mi east of Santa Ana, in hills N and east of South Coast Gun Club on Jeffrey Road in Hicks Canyon 183 Comment
  POM281848  Pilularia americana H. H. Tracy 1935-3-31 s.n. Orange Costa Mesa Comment
  UC545832  Pilularia americana H. H. Tracy 1935-4-10 Orange n Costa Mesa Comment
  SEINET4671985 Image available Pinus attenuata T. C. Arambula 1966-1 109 Orange Claremont, Rancho Santa Ana Botanic Garden Comment
  RSA562814  Pinus canariensis Steve Boyd, Tim Ross 1992-5-20 7467 B 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
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Feb 4 2016
  RSA662562  Pinus coulteri P. Shirokawa 1998-5-7 26 Orange Cleveland National Forest- Trabuco Ranger District, 4.55 miles from Ortega Highway (State Highway 74) on North Main Divide Road 1067 Comment
  UCR234149  Pinus halepensis Dick Newell, Judy Booth 2012-3-30 241 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest 258 Comment
  UCSB52882  Piperia cooperi Roberts, Fred 1983-4-9 Orange South Laguna; Niguel Hill, 1.0km ESE Aliso Peak; 2.5km SW Alicia Fire Station 264 Comment
  JEPS45891  Piptatherum miliaceum Lawrence M. Booth 1932-6-7 1211 Orange Balboa Island Newport Bay Comment
  RSA758896  Piptatherum miliaceum A. C. Sanders, T. B. Salvato 2008-5-13 35352 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
  UCR250133  Piptatherum miliaceum Dick Newell, Judy Booth 2013-12-25 346 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest, at end of paved roadway 899 Comment
  UCR99861  Pityrogramma triangularis Scott D. White 1996-12-20 4630 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA450854  Plagiobothrys acanthocarpus Gordon Marsh 1978-10-16 s.n. Orange UC Irvine Ecological Preserve, near eastern fence line, draingae separating hills #1, #2. Comment
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Oct 7 2017
  SD212526  Plagiobothrys acanthocarpus R. E. Riefner 2006-4-12 06 116 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Road 46 Comment
  UCR192474  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-3-25 34542 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA4499  Plagiobothrys collinus var. californicus C. B. Wolf 1932-3-14 2710 Orange At west side of Botanic Garden(this is the only known patch in the vicinity of the B.g.) 192 Comment
  SDSU5387  Plagiobothrys collinus var. californicus R. M. Beauchamp 1968-2-17 771 Orange In field on west side of Trabuco Rd, 2 miles north of El Toro Rd. intersection. Comment
  UCR5140  Plagiobothrys collinus var. californicus Barbara T. Gittins, O. F. Clarke 1966-3-19 903 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  IRVC14769  Plagiobothrys collinus var. fulvescens D. Orr 1965-3-27 Orange Trabuco Rd. 3mi E El Toro Marine Base. El Toro Comment
  RSA678750  Plantago coronopus Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1121 -a Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UC1607990  Plantago erecta Donald G. Nelson 1935-4-6 227 Orange East San Juan Capistrano & just south of boundary of Cleveland Nat'l Forest in Santa Ana Mts. Comment
  CAS-BOT-BC402187  Plantago erecta subsp. erecta R. F. Thorne; E. W. Lathrop; W. Wisura 1977-4-27 49653 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  CHSC116482  Plantago erecta subsp. erecta R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49653 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  POM260478  Plantago indica Ella Carter 1941-08 1 Orange Near fish canneries, not far from 29th str, Newport Beach. Comment
  UCR193367  Plantago lanceolata A. C. Sanders, T. B. Salvato 2008-5-13 35345 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
  POM201755  Plantago lanceolata L. M. Booth 1932-7-18 1266 Orange Costa Mesa, Newport Bay Comment
  RSA749680  Plantago major A. C. Sanders, Fred M. Roberts 2008-7-16 35839 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin. 391 Comment
  UCR174191  Plantago major A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33026 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
  RSA698383  Plantago major Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  POM47661  Plantago ovata var. insularis F. W. Peirson 1924-5-31 4668 Orange 5 miles southeast of Laguna Beach. Comment
  RSA592105  Plantago virginica R. E. Riefner 1994-4-15 94 -324 Orange NE of cooks Reservoir, Dana Hills, City of Dana Point. Comment
  RSA698371  Platanus racemosa Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  UCR195018  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-8-7 35977 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
  RSA759256  Platystemon californicus Robt. Allen, David Olsen 2008-3-8 s.n. Orange Lomas de Santiago, Limestone Canyon, along Limestone Canyon Road, circa 0.5 miles SE of junction with Hicks Canyon Road and Santiago Canyon Road. 274 Comment
  RSA443847  Platystemon californicus Gordon Marsh, Karlin G. Marsh 1978-3-30 37 Orange Ortega Hwy, S side next to Hwy marker #37, near Conrock entrance. 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
  OBI74939  Plecostachys serpyllifolia Unknown 2005-9-9 05 -654 Orange City of Lake Forest Aliso Crk, S side of Portola Pkwya and W of El Toro Rd 225 Comment
  SD218289  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-12-23 08 381 Orange City of Laguna Beach, Mountain Rd. at Pacific Coast Highway. 21 Comment
  RSA254976  Pluchea odorata C. W. Tilforth 1975-9-6 1048 Orange Upper Bay, Newport Beach: North-east shoreline. Comment
  RSA542591  Pluchea odorata Fred M. Roberts, Doug Willick 1988-9-16 4138 Orange Peralata Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.0 kilmeter N Robbers Peak. 180 Comment
  RSA791488  Pluchea purpurascens R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49637 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  CAS-BOT-BC326616  Pluchea sericea John Thomas Howell 1927-7-24 2823 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  UCD90349  Poa annua Beecher Crampton 1967-5-23 7955 Orange Orange County, 4 miles east of Irvine, UC South Coast Field Station. Comment
  UCR193623  Poa annua A. C. Sanders, T. B. Salvato 2008-5-13 35357 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
  IRVC19543  Poa pratensis R. L. Allen 1983-1 s.n. Orange Irvine: near NE corner of Culver at Irvine Blvd. Southern Coastal Comment
  RSA73  Poa secunda J. T. Howell 1928-2-7 830 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  UCR138440  Poa secunda R. E. Riefner Jr. 2000-4-15 20- 379 Orange Santa Ana Mtns., North Ranch Policy Plan Area Main Divide Road; south of Gypsum Canyon and south of Windy Ridge 518 Comment
  UCR170300  Poa secunda J. B. Anderson 1966-5-3 636 Orange Santa Ana Mountains, Silverado Canyon, Modjeska Peak Road 1372 Comment
  UCR191666  Podocarpus gracilior Robert DeRuff 2006-1 565 Orange South Coast, Upper Newport Bay, Back Bay Drive, c. 0.1 km from Eastbluff Drive 8 Comment
  SD239845  Polygala cornuta subsp. fishiae A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39941 Orange Peninsular Range; Santa Ana Mtns. : near Pleasants Peak along the Main Divide Truck Trail. 1143 Comment
  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
  RSA708537  Polygonum arenastrum Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6102 Orange Caspers Wilderness Park, Hot Springs Cyn., Hot Springs Trail, c.a. 0.16km WSW San Juan Ranger Station, north of SR 74. 212 Comment
  UCR46714  Polygonum aviculare B. G. Pitzer, D. C. Hawks 1986-12-17 0380 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, on Santiago Cyn Rd., c. 1.0 mi SW of [Irvine Lake] Santiago Reservoir 305 Comment
  UCR150564  Polygonum hydropiperoides Scott D. White, Matt Carlton 2003-11-20 9868 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  RSA731946  Polygonum lapathifolium Fred M. Roberts, Sandy Leatherman 2007-11-27 6689 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. c.a. 0.3km S Fairmont Blvd. 118 Comment
  IRVC25292  Polypodium californicum Fred M. Roberts 1987-3-24 3267 Orange Laguna Beach: Goff Ridge, south of Nyes Place Rd., 0.9km NNE of Goff Island. Southern Coastal 169 Comment
  RSA689945  Polypodium californicum M. B. Dunkle 1935-2-23 4340 Orange Dana Point. 9 Comment
  RSA773504  Polypodium californicum Fred M. Roberts 1999-5-14 5224 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon, 0.7 km NW Bolero Spring and 2.6 km SW Silverado School 490 Comment
  UCSB62524  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Laguna Beach, Aliso Canyon, ca. 100 yards up canyon from Aliso Beach parking area, Hwy 101. 45 Comment
  UCSB62516  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Santa Ana Mtns., San Juan Canyon, 2nd ravine W of entrance to lower San Juan Camp, just S of Hwy 74. 426 Comment
  CAS-BOT-BC232960  Polypogon australis Carl B. Wolf 1932-6-13 3723 Orange Fullerton, Malvern and Nicholas Avenues 53 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
  IRVC8402  Polypogon monspeliensis J. B. Anderson 1966-4-17 593 Orange Newport Beach: along roadside ditch in field NE of Newport Harbor High School. southern coastal Comment
  RSA0058185  Polypogon monspeliensis Fred M. Roberts 2014-4-21 7871 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  UCR220032  Polypogon monspeliensis Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  RSA697711  Polypogon monspeliensis R. H. McArthur 1934-5-10 s.n. Orange Santa Ana River-W. of Costa Mesa. River bottom. Comment
  POM1140  Polypogon viridis Le Roy Abrams 1901-06 1805 Orange Santiago Peak trail. Comment
  RSA731923  Polypogon viridis Fred M. Roberts, Sandy Leatherman 2007-11-27 6687 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 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
  RSA0035664  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2012-9-23 12 -512 Orange city of Yorba Linda, Santa Ana Canyon, north side of Santa Ana River, La Palma Avenue at Via Del Rio Road 104 Comment
  RSA724058  Populus balsamifera subsp. trichocarpa R. E. Riefner 2007-6-12 7 -253 Orange City of San Juan Capistrano. Vicinity of Calle Arroyo/Paseo Esteban at San Juan Creek 152 Comment
  UC1922344  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2007-6-12 07 -253 Orange City of San Juan Capistrano, Vicinity of Calle Arroyo/Paseo Esteban at San Juan Creek. Comment
  CAS-BOT-BC102593  Populus fremontii Marcus E. Jones 1930-3-3 26533 Orange Santa Ana Mountains Comment
  CAS-BOT-BC438781  Populus trichocarpa R. E. Riefner, Jr. 2012-9-23 12 -512 Orange City of Yorba Linda, Santa Ana Canyon, N. side of Santa Ana River, La Palma Ave. at Via Del Rio Rd. 103 Comment
  CLARK-A1528-4065  Populus trichocarpa Alfred R. Roos 1936-2-9 1535 Orange Santa Ana Canyon Comment
  RSA581439  Populus trichocarpa Fred M. Roberts Jr., Gordon Marsh 1989-5-12 4358 Orange Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.0 km WSW Laurel Springs. 436 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
  RSA603349  Populus trichocarpa Scott D. White, B. Leatherman 1997-6-12 5327 Orange East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi. E of I-15 / Hwy 74 jtn. 46 Comment
  CAS-BOT-BC356150  Porophyllum gracile John Thomas Howell 1927-7-28 2865 Orange Hills on n. side of Santa Ana Canon [Canyon] 182 Comment
  JEPS34990  Porophyllum gracile John Thomas Howell 1927-7-28 2865 Orange Santa Ana Canyon, Rancho Santa Ana 152 Comment
  RSA588882  Porophyllum gracile Fred M. Roberts, D. Bontrager 1990-6-5 4673 Orange Rancho Mission Viejo: Uper Gabino Canyon, near Orange County line, 3.9 kilometers E Point Ranch Survey Marker. 280 Comment
  RSA598970  Porophyllum gracile Scott D. White 1997-3-28 4841 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  UCR18864  Porophyllum gracile John C. Roos 1965-6-16 s.n. Orange Dana Point Comment
  RSA671152  Porophyllum ruderale Ralph Guerrero 2000-10-24 10 -2000 Orange Along roadside of vegetable crop field, Seal Beach Naval Weapons Station, Seal Beach. Comment
  UC455170  Potamogeton nodosus I. J. Condit 1908-7-25 Orange Huntington Beach Comment
  POM201867  Potentilla anserina var. grandis L. M. Booth 1932-6-28 1215 Orange Bolsas Marsh. Comment
  UCR191453  Potentilla glandulosa A. C. Sanders, Fred M. Roberts 2008-4-8 34762 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  CHSC1559  Potentilla glandulosa subsp. glandulosa S. Westerberg 1938-4-1 Orange San Juan Canyon. Comment
  UCR240259  Pseudognaphalium biolettii D. E. Bramlet 2003-3-20 3349 Orange South Coast, Donna O'Neill Reserve; NE corner of the reserve, 150 m west of Cristianitos Rd. and 1.9 km north of the E-W access road 134 Comment
  RSA747708  Pseudognaphalium californicum Fred M. Roberts 2008-5-16 6986 Orange Dana Point: Dana Point Hradland, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  UCR239639  Pseudognaphalium californicum Fred M. Roberts 2012-4-24 7506 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-BC300530  Pseudognaphalium leucocephalum R. E. Riefner, Jr. 2011-10-19 11 -147 Orange City of San Juan Capistrano, San Juan Creek, ca. 0.2 mi W of intersection of Paseo Tirador and Calle Arroyo St. 31 Comment
  RSA737237  Pseudognaphalium leucocephalum R. E. Riefner 2007-9-11 07 -379 Orange City of San Juan Capistrano, vicinity of San Juan Creek road and Paseo Christina. 34 Comment
  SD187363  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-3-21 07 157 Orange San Juan Capistrano, vicinity of Calle Arroyo/Paseo Esteban at San Juan Creek. 31 Comment
  RSA741722  Pseudognaphalium leucocephalum R. E. Riefner 2008-8-5 08 -259 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, lower Fremont Canyon, main drainage. 223 Comment
  RSA791809  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2011-10-19 11 -147 Orange City of San Juan Capistrano, San Juan Creek, ca. 0.2 miles west of intersection of Paseo Tirador and Calle Arroyo St. 31 Comment
  UCSB52899  Pseudognaphalium stramineum Roberts, Jr., Fred 1983-5-4 Orange Laguna Beach; upper Rancho Laguna Canyon, 1.7 km. SSW Top of the World School; 1.4 km. ENE Cactus Point 200 Comment
  IRVC1817  Pseudosasa japonica V. Riley 1967-2-21 Orange Balboa Island. southern coastal Comment
  IRVC2822  Pseudotsuga macrocarpa A. S. Boughey 1965-3-16 75 Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  UCSB47639  Pseudotsuga macrocarpa Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, on east side of road, 0.4 km. W Trabuco peak, Santa Ana Mtns. 1341 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
  RSA542463  Pterostegia drymarioides Fred M. Roberts 1987-3-27 3279 Orange Canada De Los Alisos: above Canada Rd., 4.5 km NNE El Toro Fire Station. 226 Comment
  CAS-BOT-BC362142  Pulicaria paludosa R. L. Pope 1963-9-23 s.n. Orange Santa Ana Canyon about 1.5 miles above Yorba Linda Bridge Comment
  CAS-BOT-BC362144  Pulicaria paludosa R. L. Pope 1961-9-1 s.n. Orange Ray Miller Property, east of Fullerton, Santa Ana River Canyon Comment
  OBI5232  Pulicaria paludosa T. C. Fuller 1993-10-9 11362 Orange Santa Ana cyn, 0.1 mi S of riverside fwy to Anaheim, ca 2 mi W of the Riverside Co. line Comment
  UCR138405  Pulicaria paludosa Scott D. White, Brian Leatherman 1997-6-12 5321 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
  UCR151234  Pulicaria paludosa Steve Boyd, R. E. Riefner 2000-9-13 10307 Orange Peninsular Ranges; Santa Ana Mts region, Santa Ana Mountains: Fremont Canyon, about 1.5 air miles west of Oat (a.k.a. Oak) Flat and 1.5 miles southeast of Claymont clay mine. 427 Comment
  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
  UCR84428  Pycnanthemum californicum Steve Boyd, T. S. Ross 1994-9-14 8351 Orange Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Lucas Canyon. 311 Comment
  UCR140885  Pyracantha koidzumii Robert DeRuff 1985-6-22 267 Orange Southern Coast, Newport Beach, Newport Back Bay, along the path between Northstar Beach and the end of Mariners Drive 2 Comment
  UCD47705  Quercus X acutidens John M. Tucker 1941-5-30 256 Orange Low shrub, in San Juan Canyon, 200 yards west of San Juan Guard Station, Highway 74, Orange County, California. Comment
  UCD47711  Quercus X acutidens John M. Tucker 1941-5-30 254 Orange Low shrub, in San Juan Canyon, 200 yards west of San Juan Guard Station, Highway 74, Orange County, California. Comment
  SEINET13953030 Image available Quercus agrifolia Kay Raeder 1955-1 499 Orange Flying Cow ranch, San Jose Hills, Pacific Coast, 850 feet altitude 259 Comment
  RSA751190  Quercus agrifolia var. agrifolia A. C. Sanders 2008-7-3 35684 Orange Upper Weir Canyon, along Windy Ridge Road at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  IRVC16619  Quercus berberidifolia Gordon A. Marsh, Karlin G. Marsh 1977-9-1 s.n. Orange Mission Viejo: Jeronimo Springs. Southern Coastal Comment
  UCR208107  Quercus berberidifolia D. E. Bramlet 2000-4-13 2980 Orange Penninsular Ranges: Santa Ana Mountains, upper east Blind Canyon; 30 m south of the Blind Canyon access road and beneath SCE transmission lines; 854 m northwest of the Fremont Canon ridge road Comment
  UCR242756  Quercus berberidifolia Fred M. Roberts 2012-5-10 7689 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, south fork of Buck Gully, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive 183 Comment
  IRVC20499  Quercus chrysolepis Fred M. Roberts 1983-11-4 1147 Orange Upper Trabuco Canyon; 1.2km NE Los Pinos Peak; 3.5km SSE Trabuco Peak Santa Ana Mountains 1320 Comment
  IRVC22666  Quercus chrysolepis Fred M. Roberts 1985-5-9 1727 Orange Santa Ana Mountains: Upper McVicker Canyon, 1.8km NE Los Pinos Peak. Peninsular Ranges 1113 Comment
  RSA679221  Quercus chrysolepis Fred M. Roberts 2003-6-25 5945 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  RSA584719  Quercus dumosa Fred M. Roberts, Wade 1989-6-21 4391 Orange San Joaquin Hills; Los Trancos Canyon, 1km E summit of Pelican Hill. 98 Comment
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Oct 16 2013
  UCR224164  Quercus dumosa Fred M. Roberts 2008-9-10 7097 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, north of Marguerita Drive, 0.5 km west northwest Marine Institute, Dana Point Harbor 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
  UCSB52929  Quercus dumosa Roberts, Fred; Marsh, K. 1983-5-26 Orange Dana Point Headlands; north of Dana Strand Rd., 0.5 km. W Dana Point Harbor; 0.8 km. SSW Richard Henry Dana School 82 Comment
  IRVC21617  Quercus engelmannii Fred M. Roberts, Kelly P. Steele 1984-4-20 1344 Orange Rancho Mission Viejo: Hwy 74 near mouth of Trampas Canyon; 8.7km by road E San Juan Capistrano Southern Coastal 90 Comment
  UCR113447  Quercus engelmannii R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 453 Orange Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 473 Comment
  UCR208055  Quercus engelmannii Fred M. Roberts, D. E. Bramlet 2003-4-10 5645 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, ridge between Cristianitos Cyn. and Segunda Deshecha Canada, 1.51km W Gato Gate and 1.78km NW Edison substation 229 Comment
  UCSB52410  Quercus engelmannii Roberts, Fred 1982-7-8 Orange Laguna Niguel; canyon near Pacific Island Dr., 1.4 km. ESE Aliso Peak: 1.1 km. NE Bench Mark 133 207 Comment
  IRVC16573  Quercus kelloggii Gordon A. Marsh, Karlin G. Marsh 1978-5-2 s.n. Orange Santa Ana Mtns; Silverado Truck Trail, 7 mi. E of Forest Service gate. Peninsular Ranges 1387 Comment
  RSA477309  Quercus lobata M. R. Everett 1941-07 20279 Orange Santa Ana Canyon 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
  UCSB47644  Quercus wislizeni var. frutescens Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, 1.7km w. Trabuco Pk., Santa Ana Mtns. 1268 Comment
  RSA542413  Ranunculus californicus Fred M. Roberts 1989-3-17 4208 Orange Aliso Wood Canyon Regional Park, Aliso Canyon, 3.3km SSE Moulton Peak. 61 Comment
  RSA585061  Raphanus raphanistrum D. Atwood 1993-3-29 17737 Orange Huntington Beach along Beach Blvd, 1/2 miles N of the Beach, Comment
  IRVC1161  Raphanus sativus L. Stilgenbauer 1965-4-10 Orange Corona del Mar, 339 Milford Dr.; in canyon. Newport Beach Comment
  RSA658474  Raphanus sativus J. Berkley 1994-4-19 5 Orange Yorba Linda, off Bastuchury Rd. about 50 yds from Casa Loma Ave. Comment
  UCSB41794  Raphanus sativus MacKay, Shelley 1971-5-11 Orange 0.1 mile west of Bloomfield Avenue, Cypress 30 Comment
  CDA25895  Rhamnus alaternus Mark A. Elvin, D. G. Kelch 2006-12-9 5300 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  CAS-BOT-BC402199  Rhamnus ilicifolia R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49703 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  CAS-BOT-BC56036  Rhamnus ilicifolia C. B. Wolf 1931-3-6 1845 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope of the Santa Ana Mts. 457 Comment
  CAS-BOT-BC56041  Rhamnus ilicifolia John Thomas Howell 1927-6-17 2548 Orange hills on north side of Santa Ana Canyon 152 Comment
  RSA638962  Rhamnus ilicifolia Valerie L. Soza, LeRoy Gross 1999-6-7 483 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  UC1121807  Rhamnus tomentella subsp. tomentella A. Lewis May 1934 417 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quad. 1371 Comment
  UCR130347  Rhus glauca A. C. Sanders, Mark A. Elvin 2003-10-12 27327 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  LA62813  Rhus integrifolia Carl Epling; Harlan Lewis 1940-4-21 sn Orange hills 6 mi. E of San Juan Capistrano Comment
  RSA451  Rhus integrifolia J. T. Howell 1927-6-16 147 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR203983  Rhus integrifolia Fred M. Roberts 2008-3-12 6722 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
  RSA0031756  Rhus integrifolia R. F. Thorne 1977-11-21 50818 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UCR98235  Rhus laurina B. G. Pitzer 1997-4-15 3142 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
  LA62868  Rhus ovata P. C. Everett; 1935-6-19 2462 Orange Santa Ana Mountains, Trabuco Canyon, 2 mi. above (E.) Forest Service Patrol Station 761 Comment
  LA62871  Rhus ovata W. Pequegnat; 1938-4-16 sn Orange Santa Ana Mts Comment
  RSA658196  Rhus ovata T. A. Daubert 1991-5-19 645 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  SEINET10494685  Rhus ovata Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7138 Orange In vicinity of Laguna Beach. Shrub about 4 ft tall. 152 Comment
  UCR76183  Rhus ovata B. G. Pitzer, S. Hemstreet 1992-5-27 1960 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, along Forest Service Road 3S04 to Blue Jay Group Campground, off Hwy 74 (Ortega Hwy), c. 2 mi west of El Cariso Campground 765 Comment
  UCSB12554  Rhus ovata Huot, J. 1961-3-26 Orange Laguna Canyon Road, 9 miles from Highway 101 304 Comment
  RSA0037200  Rhus ovata Paul Shirokawa 1998-4-28 11 Orange Cleveland National Forest - Trabuco Ranger District, 4.75 miles from Ortega Highway (State Highway 74) on North Main Divide Road, and 0.6 miles along Blue Jay Road. 1066 Comment
  RSA0022442  Ribes amarum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49777 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  CAS-BOT-BC93072  Ribes californicum var. hesperium Carl B. Wolf 1930-1-30 1824 Orange Claymine Canyon, Santa Ana Mountains. 457 Comment
  LA205460  Ribes californicum var. hesperium W. Pequegnat; 1938-3-19 sn Orange Santa Ana Mountains, junction of Holy Jim and Trabuco Canyons 670 Comment
  UC1127397  Ribes californicum var. hesperium H. E. Norton 1931-3-14 40 Orange Verdugo Potrero Corona Quadrangle Comment
  RSA0024853  Ribes cereum Jeanne Paxton 1934-2-25 s.n. Orange Sugar Loaf Canyon, Arch Beach. Comment
  CAS-BOT-BC173128  Ribes indecorum C. B. Wolf 1931-3-6 1861 Orange 1 mile north of base of Modjeska Grade, west slope of the Santa Ana Mts. 304 Comment
  HSC25244  Ribes indecorum Richard Spjut 1972-2-22 2224 Orange Coastal strand, near S Laguna Beach along Hwy. 1 0 Comment
  RSA1175  Ribes indecorum B. D. Stark 1930-2-21 1475 Orange Black Star Creek. 457 Comment
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Sep 5 2013
  UCR240082  Ribes indecorum Dick Newell, Don Millar 2012-5-22 259 Orange Peninsular Range; Santa Ana Mtns., on Lake View Rd. above Irvine Lake at State Spur Rd. 564 Comment
  CAS-BOT-BC168943  Ribes malvaceum James R. Shevock 1975-4-6 4138 Orange Along Black Star Canyon Road above Hidden Ranch, Santa Ana Mountains 670 Comment
  CAS-BOT-BC168945  Ribes malvaceum Ira L. Wiggins 1966-4-11 20419 Orange Trabuco Canyon, along north-easterly facing slope of S side of stream, about 1/2 mi. above mouth of canyon. Comment
  SD236308  Ribes malvaceum var. malvaceum Jim Riley 2011-1-3 1 Orange Caspers Wilderness Park (approx. 1 km west of Cleveland National Forest Boundary). Adjacent to Ridge Trail. 473 Comment
  LA205476  Ribes malvaceum var. viridifolium W. Pequegnat; 1938-4-3 sn Orange Santa Ana Mountains, Trabuco Canyon Comment
  RSA441492  Ribes malvaceum var. viridifolium Lester H. Cushman 1932-3-5 15733 Orange Trabuco Canyon. Comment
  RSA732251  Ribes malvaceum var. viridifolium A. C. Sanders, Fred M. Roberts 2008-4-22 35037 Orange Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 366 Comment
  RSA0018258  Ribes roezlii Robert F. Thorne, E. W. Lathrop 1977-5-18 49739 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  RSA0018260  Ribes roezlii Carl B. Wolf 1941-8-15 11154 Orange Santa Ana Mts, Summit of Santiago Peak. 1707 Comment
  CAS-BOT-BC173740  Ribes speciosum C. B. Wolf 1931-3-6 1863 Orange 1 mi. no. of mouth of Harding Canyon, west slope of Santa Ana Mts. 304 Comment
  RSA351  Ribes speciosum J. T. Howell 1928-3-18 888 Orange Aliso Canon [Canyon], Rancho Santa Ana. 229 Comment
  RSA658211  Ribes speciosum T. A. Daubert 1991-5-19 661 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  CAS-BOT-BC207157  Ricinus communis P. A. Munz 1918-5-5 2177 Orange Laguna Comment
  CHSC26237  Ricinus communis E. Bushey 1968-5-15 51 Orange San Juan Canyon Rd. 304 Comment
  RSA0014061  Romneya coulteri Fred M. Roberts 2008-5-30 7018 Orange Lomas de Santiago: Santiago Creek wash, south of Irvine Mesa, 1.5 km SE Silverado Sch., Irvine Ranch Conservancy. 326 Comment
  RSA446200  Romneya coulteri F. R. Fosberg 1931-6-21 85094 Orange Lower Santiago Canyon. Comment
  RSA658201  Romneya coulteri T. A. Daubert 1991-5-19 656 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island. Comment
  RSA734669  Romneya coulteri A. C. Sanders, T. B. Salvato 2008-5-13 35373 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA797663  Romneya coulteri Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49767 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UC520021  Romneya coulteri Joseph Andorfer Ewan 1932-7-9 7487 Orange 4 mi below Rincon (Santa Ana River); Santa Ana River Comment
  RSA771717  Romneya coulteri Robt. 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
  UCR5669  Romneya trichocalyx Kenneth Hibberd 1966-5-8 660508- 01 Orange El Toro Rd. 3 mi. east of El Toro. 213 Comment
  JEPS53864  Rorippa palustris Alice King May 1908 Orange grounds of Shooting Club near Garden Grove; near Garden Grove Comment
  CAS-BOT-BC147387  Rosa californica John Thomas Howell 1927-6-6 2445 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  RSA499273  Rosa californica Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. Comment
  RSA699220  Rosa californica W. Blanchard 1932-5-15 s.n. Orange Trabuco canyon Comment
  UC212548  Rosa californica I. M. Johnston 1918-9-3 2140 Orange Laguna 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
  CAS-BOT-BC421793  Rumex conglomeratus Brian Leatherman 1997-6-12 5340 Orange Santa Ana Mtn. foothills. 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. 75 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
  UCD101162  Rumex crispus Scott D. White 1997-3-26 4811 Orange Univ. of Calif. Irvine Campus: Site of proposed student recreation center, east of main campus. Existing 'Farm School' and adjacent grasslands (horse pasture) between California Ave. and Culver Dr. 304 Comment
  UCR16522  Rumex crispus J. S. Davis 1972-5-6 720506- 26 Orange Newport Beach, 1.1 miles north from corner of San Jaquin Hills Road and Back Bay Road. 200 yards east along creek bed 6 Comment
  POM201758  Rumex crispus L. M. Booth 1932-5-12 s.n. Orange Newport Bay. Comment
  CAS-BOT-BC433581  Rumex hymenosepalus Carl B. Wolf 1932-3-15 2712 Orange Lower end of Santa Ana Canyon, 1 mi. W. of Atwood. 76 Comment
  POM2358  Rumex maritimus I. M. Johnston 1918-5-4 526 Orange San Joaquin Hills, Lakes in Laguna canon. 152 Comment
  RSA734984  Rumex salicifolius A. C. Sanders, T. B. Salvato 2008-5-13 35386 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR258623  Rumex stenophyllus Fred M. Roberts 2014-7-25 7884 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
  RSA539402  Rupertia physodes Fred M. Roberts, Carol A. Roberts 1988-6-2 4045 Orange Santa Ana Mtns: Maple Springs Truck Trail, 11.5km above Silverado Gate, 1.1km NNW Modjeska Pk. 1350 Comment
  RSA304029  Ruppia maritima James R. Shevock 1973-9-30 3220 Orange Almost stagnant at the upper most regions of the upper Newport Back Bay, Newport Beach. Comment
  UCD92331  Rytidosperma Collector Unknown 1947-9-1 s.n. Orange Poverty Mesa near El Toro. Comment
  POM187513  Salicornia bigelovii P. A. Munz 1933-10-30 12996 Orange Seal Beach. Comment
  RSA234499  Salicornia bigelovii James Henrickson 1970-9-5 5314 Orange 3.5 miles NW of Huntington Beach, 0.25 mile SE of Warner Ave. in Lower Littoral zone of Bolsa Chica Salt Marsh along outer Bolsa Bay. 0 Comment
  POM186291  Salicornia bigelovii Joseph A. Ewan 1932-7-29 7713 Orange Newport lagoon Comment
  SBBG72640  Salicornia pacifica M. N. Ackley 1928-9-22 418 Orange Sunset Beach 8 Comment
  UCR14054.1  Salicornia subterminalis Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  UCR211855  Salicornia subterminalis Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1107 Orange South Coast, Seal Beach National Wildlife Refuge, Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226) 3 Comment
  RSA678746  Salicornia virginica Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. 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
  POM48007  Salicornia virginica I. M. Johnston 1924-8-29 s.n. Orange 4 mi S of Santa Ana. Comment
  CAS-BOT-BC129735  Salix bonplandiana Helen D. Geis 1902-1-1 552 Orange Santa Ana Comment
  POM201933  Salix exigua L. M. Booth 1932-6-9 1177 Orange Santa Ana River, 1 mile from ocean. Comment
  SJSU160  Salix exigua C. B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana on Bixby Ave, 1 km W of Hansen Rd near Los Alamitos 7 Comment
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Apr 11 2014
  SJSU190  Salix exigua C. B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana on Bixby Ave, 1 km W of Hansen Rd near Los Alamitos 7 Comment
  LA208645  Salix exigua var. hindsiana Robert G. Engman; sn Orange San Clemente, San Juan Capistrano wash, near sea, 0 Comment
  IRVC29700  Salix gooddingii Mark A. Elvin, Barry S. Nerhus 2006-11-4 5241 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  UCR185530  Salix gooddingii Robert DeRuff 2001-4-10 s.n. Orange South Coast, Newport Back Bay, North Star Beach 3 Comment
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Jun 21 2008
  UCR193026  Salix gooddingii A. C. Sanders, Fred M. Roberts 2008-6-17 35515 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA725464  Salix laevigata Fred M. Roberts 2007-8-6 6553 Orange San Joaquin Hills: Laguna Beach, Laguna Cyn. on east side of Laguna Cyn. Rd. adj. to dog park, 1.2 km S (air) from El Toro Road and 1.8 km WSW Moulton Survey Mk. 52 Comment
  POM210857  Salix lasiolepis L. M. Booth 1932-12-31 1384 Orange Newport Bay. Comment
  UC537261  Salix lasiolepis L. M. Booth 1932-12-31 1384 Orange Newport Bay Comment
  UCR195008  Salix lasiolepis A. C. Sanders, Fred M. Roberts 2008-8-7 35985 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
  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
  RSA725966  Salix lucida subsp. lasiandra R. E. Riefner 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
  RSA765880  Salix lucida subsp. lasiandra R. E. Riefner Jr. 2009-11-9 09 -243 Orange City of Yorba Linda, Santa Ana Canyon, Santa Ana River bottom, E of Weir Canyon Rd., between Horseshoe Bend and vicinity of La Palma Ave. and Mercado del Rio. 102 Comment
  RSA700176  Salix sessilifolia Minor Warne 1934-02 s.n. Orange Santa Ana River Comment
  CAS-BOT-BC403759  Salpichroa origanifolia E. L. Paddock 1943-5-19 12747 Orange 1 mile east of Brea Comment
  CDA25914  Salsola tragus T. McCrainie, Mark A. Elvin 2006-9-23 4 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
  IRVC418  Salsola tragus A. Adams 1965-5-2 Orange Newport Beach, Corona del Mar, Little Corona Beach. Southern Coastal Comment
  RSA743461  Salsola tragus Fred M. Roberts 2008-7-10 7069 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
  RSA728668  Salsola tragus R. E. Riefner 2006-10-19 6 -558 Orange City of Newport Beach, Irvine Coast Trail at San Diego Creek, near SR-73 crossing, S of Jamboree Rd. 3 Comment
  RSA0095114  Saltugilia australis Clare B. Hardham 1962-4-5 8952 Orange Hills above San Clemente. Comment
  UCLA55682  Salvia C. Epling and H. Lewis 1940-4-21 Orange 6 mi e San Juan Capistrano Comment
  RSA584710  Salvia apiana Fred M. Roberts 1989-6-7 4378 Orange Santa Ana Mountains: Upper Gypsum Canyon along ridge between Gypsum and Blind Canyon, c. 6.3 km WSW Sierra Peak. 411 Comment
  IRVC26432  Salvia californica Mark A. Elvin 2004-2-22 3152 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC26710  Salvia clevelandii Mark A. Elvin 2004-4-4 3235 Orange UCI Arboretum Southern Coastal 15 Comment
  UC1607999  Salvia columbariae Donald G. Nelson 1935-3-23 177 Orange Hills n of Fullerton (Chia); Chia Comment
  UCR261714  Salvia columbariae Dick Newell, Don Millar 2015-3-24 396 Orange South Coast, San Joaquin Hills, on Serrano Ridge 0.25 mi. due east of 73 Toll Rd. overcrossing 249 Comment
  RSA5345  Salvia leucophylla B. D. Stark 1932-12-30 4464 Orange Rancho Santa Ana, slopes NW of tennis court. Comment
  UCR159776  Salvia mellifera Peter A. Bowler 2003-4-20 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh 9 Comment
  UCR220026  Salvia mellifera Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  UCR99553  Salvia mellifera B. G. Pitzer 1996-4-30 2798 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA734894  Sambucus mexicana A. C. Sanders 2008-5-28 35431 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  RSA748256  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-6-17 35517 Orange Middle section of Weir Canyon, SSE of Walnut Canyon Reservoir. 225 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
  CAS-BOT-BC238824  Sambucus nigra subsp. caerulea Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal: UC San Joaquin Freshwater Marsh Reserve 6 Comment
  POM201856  Samolus parviflorus L. M. Booth 1932-7-19 s.n. Orange Bolsas Marsh. Comment
  UCSB52885  Samolus parviflorus Roberts, Fred 1983-9-25 Orange Laguna Beach: Irvine Bowl Canyon, 1.3km NW Thurston School: 1.2km NE Recreation Point 40 Comment
  RSA681026  Sanicula arguta Fred M. Roberts, D. E. Bramlet 2003-3-13 5573 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 197 Comment
  POM6326  Sanicula crassicaulis P. A. Munz, L. T. Street, G. Williams 1919-5-3 2636 Orange Santa Ana River Canyon. Comment
  RSA471472  Sanicula crassicaulis Christopher Davidson 1977-5-18 5636 Orange Cleveland National Forest, Falcon campground. 1006 Comment
  RSA699112  Sanicula menziesii J. Vlahos s.n. Orange Trabuco Canyon Comment
  RSA696280  Sarcocornia perennis Keith E. Hoffmaster 1934-7-15 s.n. Orange Santa Ana Mts (Modjeska) 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
  UCR193064  Schinus molle A. C. Sanders, Fred M. Roberts 2008-6-17 35473 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCSB41776  Schinus molle Kula, Stanley 1964-12-20 Orange Carbon Canyon Rd. Comment
  RSA0036019  Schinus molle Robert F. Thorne 1977-11-21 50808 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  SD133207  Schinus terebinthifolius A. C. Sanders 1990-10-6 10201 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 Comment
  RSA732074  Schismus barbatus A. C. Sanders, Fred M. Roberts 2008-3-25 34561 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA0059074  Schoenoplectus americanus CNPS Accuracy Assessment Team 2014-7-9 9308 Orange Upper Newport Bay Nature Reserve. Comment
  RSA793256  Schoenoplectus californicus Robert F. Thorne 1984-1 s.n. Orange Newport Back Bay Comment
  POM1400  Schoenoplectus maritimus Phillip A. Munz 1918-5-4 2226 Orange Laguna Canyon. Comment
  RSA232224  Schoenoplectus maritimus James Henrickson 1970-10-3 5358 Orange 3 miles NE of Huntington Beach just N of Bolsa Chica Salt Marsh. 0 Comment
  RSA734876  Schoenoplectus maritimus Jeanne Payton 1934-4-10 s.n. Orange Marshes back of Santa Ana County Club. Comment
  RSA788971  Scirpus microcarpus Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49574 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA0135521  Scirpus robustus David E. Bramlet 2005-7-1 3889 Orange Upper Newport Bay, west side of the Bay approximately 61m east of the end of Mariners Drive. Some 611m NW of the Big Canyon area. 0 Comment
  UCD124853  Scrophularia californica R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon. Comment
  UC1011912  Scrophularia californica subsp. floribunda F. W. Pennell and E. M. Harvey 1949-6-29 26811 Orange above San Juan Capistrano (pass at summit of Ortega Hwy) 792 Comment
  POM9828  Scrophularia californica subsp. floribunda Philip A. Munz, R. D. Harwood 1920-4-24 3760 Orange Santa Ana Mountains, Sierra [Freemont] Canyon. 366 Comment
  JEPS62864  Scutellaria tuberosa Mary Alice King 1908-4-19 Orange Santa Ana Mountains Comment
  UCR193014  Searsia pendulina A. C. Sanders, Fred M. Roberts 2008-6-17 35500 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA703882  Selaginella bigelovii Fred M. Roberts, D. E. Bramlet 2004-7-30 6079 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Western slopes of Cristianitos Cyn., 0.25km W Sycamore Gate and Cristianitos Road. 151 Comment
  SBBG27191  Selaginella bigelovii J. T. Howell 1927-7-22 2834 Orange Claymine Cyn 182 Comment
  UC1543091  Selaginella bigelovii Donald G. Nelson 1935-4-6 238 Orange e San Juan Capistrano (just s of boundary of Cleveland Nat'l Forest, side canyon with stream, branching n from summer ranger station on main hwy. up San Juan Canyon); Santa Ana Mts., San Juan Canyon Comment
  SEINET10470958  Selaginella bigelovii John Thomas Howell 1927-7-22 Howell 2834 Orange Claymine Canyon, Santa Ana Mts., On hot and exposed opens between shrubs on very steep hillsides and in the cracks and crevices of sandstone outcrops, Upper Sonoran Zone. 185 Comment
  UCSB56506  Senecio aphanactis Marsh, K. 1978-3-16 Orange U.C. Irvine Ecological Preserve: Hill #1 51 Comment
  RSA542662  Senecio californicus Bill O'Connell 1991-5-31 4 Orange San Joaquin Hills: Pelican Hill, west side 190 Comment
  CAS-BOT-BC333067  Senecio flaccidus var. douglasii James R. Shevock 1976-10-28 5357 Orange Along FS road 3S04 about Bedford Peak, Santa Ana Mountains, Cleveland National Forest 1097 Comment
  CAS-BOT-BC333068  Senecio flaccidus var. douglasii Agnes M. Bowman 1899-6-1 s.n. Orange Orange Comment
  RSA937  Senecio flaccidus var. douglasii J. T. Howell 1927-6-6 43 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA641384  Senecio linearifolius Scott D. White 1998-6-26 6783 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  UCR149494  Senecio linearifolius Scott D. White, Michael Honer 2004-5-17 10401 Orange South Coast, City of Laguna Niguel. Ridges and open slopes directly N of the intersection of Crown Valley Parkway and Pacific Island Dr 183 Comment
  UCR177697  Senecio linearifolius Scott D. White 2004-7-7 10606 Orange South Coast, Laguna Niguel, along Pacific Island Drive 122 Comment
  UCR204762  Senecio linearifolius var. linearifolius Scott D. White 2003-7-7 9613 Orange Coastal Plain, Irvine, UC Irvine Campus. Directly west of T-intersection of Shady Canyon Creek with Bonita Canyon Dr. (= Culver Drive) 70 Comment
  IRVC24099  Senna multiglandulosa Fred M. Roberts, R. L. Allen 1985-9-3 2201 Orange Lower San Juan Canyon, Hwy 74, c.a. 14.4km NE San Juan Capistrano by road, Casper's Regional Park 184 Comment
  SEINET3876377 Image available Sequoia sempervirens Pamela G. Jones 1967-9-11 30 Orange Yorba Linda City Park.; 0 Comment
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May 7 2015
  JEPS42884  Sesuvium verrucosum L. M. Booth 1932-7-4 1257 Orange Newport Bay Comment
  SD146069  Sesuvium verrucosum A. C. Sanders, D. Malueg and K. D. Jones 2000-4-19 23334 Orange Bolsa Chica Lagoon, along dirt roads in oil field east of Highway 1, east of Bolsa Chica Street. Comment
  CAS-BOT-BC438200  Sesuvium verrucosum Carl B. Wolf 1932-7-7 3847 Orange Bryant Ranch, Bixby Ave., field 100 ft. N. of Rd. 7/10 mi. W. of Hansen Rd; 100 ft. N. & 2/10 mi. W. of S.E. corner of N.E.40 of N.W.160 of Sect. 34. T4S R11W. 7 Comment
  RSA610224  Sesuvium verrucosum Fred M. Roberts Jr., Julie Vanderwier 1997-4-22 5022 Orange Bolasa Chica Salt Marsh: (U. S. Fish Wildlife Service cell 60), west of old oil field, 0.8 km S Chica survey Mark. 0 Comment
  IRVC16250  Setaria lutescens Gordon A. Marsh 1977-9-18 s.n. Orange Dana Point: Canyon betweenPaccific Coast Hwy and Del Obispo. Southern Coastal Comment
  IRVC1828  Setaria lutescens Robin Hobson 1965-4-10 HS 451 Orange Newport Beach; [Newport] Back Bay Southern Coastal Comment
  CAS-BOT-BC243589  Setaria parviflora I. L. Wiggins; J. H. Thomas 1962-6-27 309 Orange Near intersection of 18th and Main Streets, Santa Ana Comment
  CAS-BOT-BC243591  Setaria parviflora Ira L. Wiggins 1965-10-24 20294 Orange Orange grove on S side of Yorba Linda Blvd. 1/4 mi. E of State College Blvd., Fullerton Comment
  RSA791872  Setaria parviflora R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49619 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station Comment
  CAS-BOT-BC243633  Setaria pumila J. B. Anderson 1966-5-2 621 Orange Along Newport Freeway at 17th Street, Santa Ana Comment
  RSA602113  Sidalcea malviflora subsp. sparsifolia Scott D. White 1997-5-6 65040 Orange Santa Ana Mountians, Santiago Canyon Area: Unnamed tributary to Santiago Creek flowing from the SW, directly W of Pancho Canyon . Lomas de Santiago S179. 366 Comment
  CAS-BOT-BC205740  Sidalcea neomexicana subsp. thurberi Carl B. Wolf 1936-4-22 7770 Orange East of Los Alamitos, at Northwest corner of Hansen Road & Bryant Ave. 15 Comment
  CAS-BOT-BC205743  Sidalcea neomexicana subsp. thurberi LeRoy Abrams 1903-4-17 3257 Orange Between Tustin and Myford Comment
  POM156679  Silene antirrhina L. R. Abrams 1903-4-18 3272 Orange Trabuco arroyo, near San Juan Capistrano. Comment
  RSA590953  Silene antirrhina Fred M. Roberts, David E. Bramlet 1991-4-21 4772 Orange Dana Point; Headlands, 1.7km SSW Dana Hills High School 0.4m WNW Dana Point Harbor pier. 79 Comment
  RSA752036  Silene antirrhina Fred M. Roberts 2008-3-27 6813 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 1, 0.5km W Marine Institute (Dana Point Harbor). 45 Comment
  SD241797  Silene antirrhina Mark A. Elvin 2003-3-30 2384 Orange South Coast: north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73. 46 Comment
  IRVC22793  Silene gallica Fred M. Roberts 1985-5-16 1816 Orange mouth of Laurel Canyon, 4.0km SE Signal Peak, San Joaquin Hills 85 Comment
  RSA683063  Silene gallica Fred M. Roberts 2003-3-19 5611 Orange Donna O Neill Land conservancy: Tributary W of Cristianitos Cyn., 1,625m NNW Sycamore Gate and 483m W Cristianitos Rd. 174 Comment
  RSA749466  Silene gallica Fred M. Roberts 1999-4-22 5186 Orange Lomas de Santiago: tributary to Santiago Creek wash along spur road on ridge between Limestone Cyn. and Santiago Creek wash opposite Williams Cyn., 1.9 km SE Silverado Sch. and 2.2 km NNW Bolero Lookout. 395 Comment
  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
  RSA734647  Silene laciniata A. C. Sanders, T. B. Salvato 2008-5-13 35361 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR168467  Silene laciniata D. E. Bramlet 2004-5-27 3595 Orange Donna O'Neill Reserve, SW corner of Reserve, 1.28 km west of Cristianitos Road and 1.52 km N of Pico 183 Comment
  UCR76760  Silene laciniata Stu Hemstreet 1992-5-27 1958 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy), c. 2 mi. (airline) west of El Cariso Campground. 762 Comment
  UCSB50630  Silene laciniata subsp. laciniata Roberts, Fred 1982-7-20 Orange Santa Ana Mtns.; Main Divide Extension, 3.0 km. by road NE Falcon Group camp; 3.4 km. E Los Pinos Peak 1027 Comment
  POM339144  Silene laciniata subsp. major F. R. Fosberg 1930-6-15 52854 Orange Santiago Canyon above Modjakas Home, Santa Ana Mts. Comment
  POM422  Silene laciniata subsp. major P. A. Munz 1918-5-4 2200 Orange Laguna Beach Comment
  RSA289  Silene laciniata subsp. major J. T. Howell 1927-7-28 512 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  RSA438884  Silene laciniata subsp. major F. R. Fosberg 1931-6-2 748 Orange Silverado Canyon, Santa Ana Mountains. Comment
  RSA581444  Silene laciniata subsp. major Fred M. Roberts 1989-5-12 4363 Orange Santa Ana Mountains: Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.2 kilometers WSW Laurel Springs. 455 Comment
  SD127342  Silene laciniata subsp. major Reid Moran, Gordon Marsh and Jack Reveal 1977-6-13 24233 Orange Willow Canyon, tributary of Laguna Canyon 124 Comment
  SD245326  Silene laciniata subsp. major Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49595 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  RSA647891  Silybum marianum Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-1 12 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  RSA4791  Sinapis arvensis James Snow s.n. Orange Plants of the Bryant Ranch, near Long Beach. Station # 3, Plant #5. Comment
  CAS-BOT-BC75037  Sisymbrium altissimum John Thomas Howell 1927-6-6 2448 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  CAS-BOT-BC75239  Sisymbrium irio Ira L. Wiggins 1966-2-19 20457 Orange Carbon Canyon near Orange County Survey bench mark RCE 7872. Comment
  CLARK-A1528-967  Sisymbrium irio Patricia A. Andrews 1975-6-26 5911 Orange Capistrano Bay Beach 9 Comment
  RSA696105  Sisymbrium irio Keith E. Hoffmaster 1928-2-19 387 Orange Tustin, Santa Ana. Comment
  UCD115600  Sisymbrium irio Ira L. Wiggins 1966-2-5 20425 Orange along Newport Blvd., 4.5 miles N of Orange County Fairgrounds. Comment
  RSA0015957  Sisyrinchium bellum Fred M. Roberts 2012-4-24 7536 Orange San Joaquin Hills: Buck Gully, above main trail, 2 km W Signal Peak and about 0.4 km S San Joaquin Hills Road. 155 Comment
  RSA131  Sisyrinchium bellum J. T. Howell 1927-7-19 445 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA747608  Sisyrinchium bellum Fred M. Roberts 2000-5-4 5315 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., west of SR 241, 1.9 km E Rattlesnake Reservoir dam and 2.1 km WSW Bee Peak. 210 Comment
  RSA747707  Sisyrinchium bellum Fred M. Roberts 2008-5-16 6985 Orange Dana Point: Dana Point Hradland, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  UCR256944  Sisyrinchium bellum Naomi Fraga 2009-5-11 2716 Orange Santa Ana Mountains, Cleveland National Forest, San Juan Loop Trail just west of Sugarloaf Spur Trail 912 Comment
  UCSB13383  Sisyrinchium bellum Whittington, M. 1962-4-20 Orange Modjeska grade road; between Modjeska and Trabuco Canyon Comment
  HSC13908  Sisyrinchium bellum J. J. Wagoner 1965-4-11 19 Orange 4 mi. N of Modjeska Canyon near Irvine Lake along the Irvine road 152 Comment
  RSA503163  Sisyrinchium bellum Gary D. Wallace, G. Cromwell 1966-4-16 471 Orange Along coast highway; north of Camp Pendleton. Comment
  CDA20833  Solanum americanum P. Akers 2006-3-25 PA 7 -06 Orange Peninsular Ranges; Yorba Linda. Santa Ana River S of La Palma Dr, 0.6-0.9 mi E of Yorba Linda Dr. 121 Comment
  POM21634  Solanum americanum F. W. Peirson 1924-2-9 4523 Orange Between Wintersberg and the sea. Comment
  RSA743381  Solanum americanum Fred M. Roberts 2008-5-27 7000 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  SD220085  Solanum americanum Mark A. Elvin 2004-5-2 3415 Orange Irvine: San Joaquin Freshwater Marsh near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  UCR182904  Solanum americanum Pat Akers 2006-3-25 PA7 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
  UCSB48116  Solanum americanum Roberts, Fred 1981-4-12 Orange Santa Ana Mtns.: San Juan Canyon, Hwy 74, 1.3km by road E San Juan Guard Station: 0.9km SE Juan Rancho Survey Mark 89 Comment
  POM183938  Solanum douglasii Philip A. Munz 1932-3-29 12190 Orange Costa Mesa Comment
  RSA232216  Solanum douglasii James Henrickson 1970-7-24 4998 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
  UC1125193  Solanum douglasii A. Lewis Mar 1934 337 Orange Santa Ana Canyon 121 Comment
  UCR100461  Solanum douglasii B. G. Pitzer 1996-4-30 2762 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR193021  Solanum douglasii A. C. Sanders, Mitch Provance 2008-5-20 35417 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA488142  Solanum lanceolatum Roger Reinke 1988-8-14 1 Orange Tustin: near Tustin Post Office at 1st Street just W of Newport Blvd. Comment
  RSA17565  Solanum umbelliferum Carl B. Wolf 1936-6-17 7953 Orange Long Ortega Highway San Juan Canyon, 5/10 mi. e. of Orange Co. Line Riverside 366 Comment
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Aug 9 2014
  UCR192098  Solanum umbelliferum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35284 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR2925  Solanum umbelliferum R. Oshima 1963-5-2 050263- 10 Orange Peninsular Range; Santa Ana Mtns., 2 mi west of the Riverside County line in a draw. 15 yards up the draw under oaks Comment
  RSA427441  Solanum umbelliferum Christopher Davidson 1977-5-18 5616 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  RSA704887  Solanum umbelliferum Doug Causen 1992-5-1 s.n. Orange one mile W Modjeska Cn. turnoff roadside easement. Comment
  SEINET12274866  Solanum umbelliferum J. F. Bright, Wyman, C. 1933-1 8179 Orange back of La Guna Beach Comment
  UCSB52472  Solanum umbelliferum Roberts, Fred 1983-1-7 Orange Laguna Beach: Park Canyon along west flank of Temple Hill, 1.7km NE Thurston High School; 1.7km SE Bench Mark 104 205 Comment
  UCR141337  Soleirolia soleirolii Robert DeRuff 1990-8-2 394 Orange Southern Coast, Newport Beach, Neport Back Bay, Big Canyon, near Jamboree Road 11 Comment
  RSA0055824  Solidago californica Doris Bowers 1970-10-26 1709 Orange Black Star Can. Indian site 610 Comment
  RSA696853  Solidago occidentalis J. R. Bruff 1930-10-19 14 Orange Santa Ana River bed. Comment
  UCR237815  Sonchus asper Mark A. Elvin 2003-2-2 2293 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  IRVC9106  Sonchus oleraceus B. Gittins 1963-3-22 70 Orange Orange Coast College Campus. Costa Mesa Comment
  IRVC924  Sonchus oleraceus A. Adams 1965-5-2 Orange Newport Beach, Corona del Mar, Little Corona Beach. Southern Coastal Comment
  JEPS88920  Sonchus oleraceus Rimo Bacigalupi, and L. Heckard, P. C. Hutchison 1962-3-16 8231 Orange 2 mi n Doheny Beach State Park (along U.S. 101) Comment
  UCR181151  Sorghum bicolor R. E. Riefner Jr. 2005-10-5 05- 710 Orange South Coast, Irvine, Irvine Blvd. at The Groves Rd. 84 Comment
  UCR197681  Sorghum bicolor A. C. Sanders, Fred M. Roberts 2008-9-18 36066 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  IRVC15382  Sorghum halepense J. B. Anderson 1966-5-2 634 Orange MacArthur Blvd. near the Newport Freeway. southern coastal Comment
  SD384  Sorghum halepense none given VII, 1915 Orange Vic. Santa Anna Comment
  UCD92658  Sorghum halepense Beecher Crampton 1965-10-27 7582 Orange 2 miles E of Irvine, Irvine Blvd. Comment
  RSA699061  Sparganium eurycarpum Minor Warne 1934-5-17 s.n. Orange Greenville Drainage. Comment
  CAS-BOT-BC235381  Spartina foliosa Peter H. Raven 1957-9-28 11379 Orange North limits of Surfside Comment
  UCR2764  Spartina foliosa F. M. Reed 1927-11-23 5676 Orange South Coast, Anaheim Landing 1 Comment
  CSUSB1332  Spartium junceum Cesareo Perez 1971-5-4 Orange South Mesa Drive and Lemon Street in Villa Park Comment
  SEINET10452464  Spartium junceum James S. Miller 1992-5-8 Miller 7449 Orange 2 mi E of the border of Cleveland National on California route 74. 310 Comment
  IRVC361  Spergula arvensis M. Savage 1965-3-12 Orange Irvine Terrace. Newport Beach Comment
  IRVC365  Spergula arvensis D. Van Gorden 1965-3-11 Orange 2212 Meyer Place. Costa Mesa Comment
  UCR107849  Spergula arvensis Scott D. White, B. Leatherman 1998-1-26 6065 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Avenue and new freeway (Bonita Cyn.) 37 Comment
  RSA696570  Spergula arvensis Elisabeth Norland 1929-3-16 s.n. Orange Costa Mesa. Comment
  RSA0097855  Spergularia bocconi L. M. Booth 1932-5-24 1095 Orange Newport Bay, Public Golf Course. Comment
  RSA5910  Spergularia salina C. B. Wolf 1932-7-2 3817 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  RSA0011086  Spergularia salina James Snow 1932-1 4 Orange Bryant Ranch, near Long Beach. Station no. 1. Comment
  RSA0097294  Spergularia salina Keith E. Hoffmaster 1930-6-12 81 Orange Santa Ana. Comment
  RSA0098709  Spergularia villosa L. M. Booth 1932-7-18 1266 A Orange Costa Mesa, inland from Newport Bay. 30 Comment
  RSA733957  Sphaeralcea fasciculata Keith E. Hoffmaster 1927-5-15 458 Orange Lemon Heights. Comment
  RSA23430  Sporobolus airoides C. B. Wolf 1940-6-27 9718 Orange Bryant Ranch, East of Los Alamitos, near corner of Hansen Rd. and Bryant Ave 8 Comment
  UCR236674  Sporobolus indicus Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7106 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
  JEPS62963  Stachys ajugoides Alice King May, 1908 Orange near Tustin Comment
  RSA749695  Stachys ajugoides A. C. Sanders, Fred M. Roberts 2008-7-16 35830 Orange Lomas de Santiago, canyon c. 0.12 mi. below Dripping Spring, c. 7.5 mi. ESE of Tustin 360 Comment
  UCR107851  Stachys ajugoides Scott D. White 1998-3-18 6214 Orange UCI, site of proposed research park, c. halfway between Berkeley Ave. and new freeway. 37 Comment
  UCR193833  Stachys ajugoides A. C. Sanders, Fred M. Roberts 2008-7-16 35834 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  UC284865  Stachys ajugoides var. rigida P. A. Munz 1923-9-7 7756 Orange trail from Holy Jim Canyon Santiago Peak; Santa Ana Mts. 1310 Comment
  UC1871282  Stachys ajugoides var. rigida Steve Boyd, D. L. Banks 1969-12-31 8276 Orange Peninsular Ranges; Santa Ana Mountains region; Southern Santa Ana Mountains along the ridgeline between Lucas and Verdugo Canyons west of Verdugo Potrero, near transit point ''Lucas''. T7S R6W SW1/4 NW1/4 sec. 16. Elevation ca. 1400 ft. 427 Comment
  RSA697868  Stachys bullata L. C. Hull 1934-4-15 s.n. Orange Laguna Hills Comment
  POM4078  Stachys rigida subsp. quercetorum P. A. Munz 1918-5-4 2213 Orange Laguna Beach Comment
  RSA446585  Stachys rigida subsp. quercetorum Unspecified 1920-6-1 s.n. Orange Laguna. Comment
  UCR247899  Stachys rigida var. rigida Fred M. Roberts 2013-6-12 7795 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 km ENE Silverado School and 1.4 km up stream Black Star Road crossing. 320 Comment
  SEINET9355912  Stachys stebbinsii Unknown 2011-9-27 39902 Orange Orange Co., CA Comment
  RSA0106593  Stebbinsoseris heterocarpa Scott D. White 1998-3-18 6213 Orange UCI Campus: Site of proposed Research Park, Southwest of main campus circle, ca. halfway between Berkley Ave. and new Freeway (Bonita Cyn.). Plains dissected by a series of gullies. 37 Comment
  SD247598  Stebbinsoseris heterocarpa R. F. Thorne, C. W Tilforth, E. W. Lathrop 1977-4-27 49654 Orange Northeern Santa Ana Mountains: Coal Canyon (NW of Sierra Peak). Comment
  UCR193587  Stellaria media A. C. Sanders, T. B. Salvato 2008-5-13 35384 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  CAS-BOT-BC393819  Stellaria media Ira L. Wiggins 1966-3-1 20484 Orange Corner of South Campus Drive and State College Blvd., Fullerton Comment
  RSA696565  Stellaria media Marjorie Smith s.n. Orange High School Campus. Comment
  RSA528050  Stenotaphrum secundatum A. C. Sanders 1990-10-6 10191 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  UCR13409  Stenotaphrum secundatum William A. Hunt 1972-4-9 720409- 02 Orange South Coast, San Clemente, San Clemente Beach State Park, day use area, bluffs directly overlooking Pacific Ocean 15 Comment
  CAS-BOT-BC375124  Stephanomeria cichoriacea Carl B. Wolf 1933-8-24 5393 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  JEPS36892  Stephanomeria exigua subsp. coronaria L. M. Booth 1933-10-18 Orange Newport Comment
  CAS-BOT-BC375867  Stephanomeria virgata H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  UCR2803  Stipa lepida F. M. Reed 1922-4-30 4723 Orange Arch Beach 229 Comment
  HSC13367  Stipa pulchra C. L. Hitchcock 1966-3-15 24142 Orange Stearns Lease, 1.5 mi. E of Brea. Comment
  UCR177424  Stipa pulchra Scott D. White, Amanda Duchardt 2003-3-27 8852 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  RSA737541  Stylocline gnaphaloides Fred M. Roberts 2008-3-12 6720 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  POM301519  Styrax redivivus J. C. Roos 1937-5-10 2326 Orange East of San Juan Capistrano. Comment
  SD127487  Styrax redivivus Reid Moran, Jack Reveal and Bob Smart 1975-7-18 22599 Orange North slope of ridge, upper Trabuco Canyon, Santa Ana Mts. 900 Comment
  SBBG128111  Styrax redivivus R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49598 Orange tributary to San Juan Cyn, along Ortega Hwy (74) ca. 2 mi above San Juan Fire Station; Santa Ana Mtns Comment
  SBBG128686  Styrax redivivus R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49686 Orange Sierra Peak, Skyline Drive crest, MDT 'Trail' (Main Divide Truck Trail); n Santa Ana Mtns 900 Comment
  RSA438605  Suaeda calceoliformis J. Ewan 1931-7-31 4763 Orange Smeltzer Comment
  SBBG72665  Suaeda calceoliformis J. Ewan 1931-7-31 Orange Smeltzer Comment
  UC217430  Suaeda calceoliformis H. M. Hall 1920-10-4 11221 Orange Cypress Comment
  CAS-BOT-BC110386  Suaeda esteroa Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  LA204737  Suaeda esteroa Carl B. Wolf; 1934-7-29 6043 Orange Newport Bay Tide Flats 0 Comment
  SEINET179446  Suaeda esteroa Lawrence M. Booth 1932-12-13 1373 Orange Newport Bay. Comment
  UCR211858  Suaeda esteroa Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1108 Orange South Coast, Seal Beach National Wildlife Refuge, Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226) 3 Comment
  UCSB50567  Suaeda esteroa Tilforth, C. 1975-11-6 Orange North-east shoreline of Upper Bay, Newport Beach, Orange County 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
  POM202053  Suaeda taxifolia L. M. Booth 1932-6-29 1232 Orange Newport Bay. Comment
  RSA438591  Suaeda taxifolia E. A. Purer 1932-03 15767 Orange Coast Highway at Huntington Beach Comment