Search Results — 2000 specimen records retrieved (1611 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
  IRVC28912  Abronia maritima R. E. Reifner 1994-5-22 94 380 Orange San Mateo Point; W of RR tracks, N of County line marker. Southern Coastal 6 Comment
  POM201767  Abronia maritima L. M. Booth 1932-5-25 1113 Orange Balboa Island, Newport Bay. Comment
  SBBG69882  Abronia maritima M. N. Ackley 1928-9-22 Orange Sunset Beach Comment
  SD181444  Abronia maritima Valerie Sosa, Kevin Clark, LeRoy Gross, et al. 2001-4-4 1116 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge 3 Comment
  CAS-BOT-BC229406  Abronia umbellata Marcus E. Jones 1924-8-26 s.n. Orange Newport Comment
  IRVC29759  Abronia umbellata Barry S. Nerhus, Mark A. Elvin 2006-11-4 12 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  SEINET893157  Abronia umbellata Charles T. Mason Jr. 1943-1 108 Orange Along Coast Highway 101, one miles southeast of Huntington Beach. Comment
  RSA678513  Abronia umbellata subsp. umbellata Valerie L. Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1130 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  JEPS61217  Abronia umbellata var. umbellata L. M. Booth 1932-5-25 1113 Orange Balboa Island; Newport Bay Comment
  JEPS61233  Abronia villosa L. M. Booth 1932-7-25 1308 Orange Coastal Santa Ana River Comment
  RSA13158  Abronia villosa var. aurita Percy C. Everett 1935-6-28 7260 Orange 0.8 miles east of Atwood S side of RR tracks 107 Comment
  UCR182816  Abutilon palmeri R. E. Riefner Jr. 2006-9-5 06- 418 Orange Southern Coast, Corona del Mar, Ocean Blvd. near Iris Ave. 11 Comment
  UCSB52938  Acacia cyanophylla F. M. Roberts, Jr. 1984-3-15 1260 Orange collected 1.0 km SSW and 3.0 km W, along Back Bay Drive in Newport Back Bay Bayview School and U. C. Irvine Campus Center - Newport Back Bay, Back Bay Drive, U. C. Irvine Campus Center 2 Comment
  SEINET5642645  Acacia longifolia Shelby J. Wood 2013-3-6 4 Orange Laguna Hills.; 0 Comment
  IRVC29884  Acacia saligna Mark A. Elvin, D. Kelch, Barry S. Nerhus, Patricia Iluore 2006-12-9 5325 Orange Newport Backbay; along Bayside Drive ca. 100 m W of Eastbluff Dr. Southern Coastal 5 Comment
  CAS-BOT-BC333254  Acer macrophyllum Le Roy Abrams 1901-6-15 1819 Orange South Fork Santiago Creek 914 Comment
  CAS-BOT-BC333255  Acer macrophyllum John Thomas Howell 1927-7-26 2839 Orange SE fork of Claymine Canon, N. Santa Ana Mts. 304 Comment
  IRVC7  Acer macrophyllum D. Frees 1965-3-13 s.n. Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  RSA16469  Acer macrophyllum Percy C. Everett 1935-6-19 7239 Orange Santa Ana Mts., Trabuco Canyon, 2 6/10 mi. below (W.) summit of truck trail. 915 Comment
  RSA76986  Acer macrophyllum F. W. Peirson 1925-4-11 5736 Orange Silverado Canyon, Santa Ana Mountains. 610 Comment
  SD127435  Acer macrophyllum Reid Moran, Jack Reveal and Bob Smart 1975-7-18 22595 Orange Near Yeager Mine, upper Trabuco Canyon, Santa Ana Mountains 725 Comment
  RSA0013961  Achillea millefolium Fred M. Roberts 2008-5-14 6969 Orange Lomas de Santiago: Loma Ridge, upper Bee Flat Cyn. below Loma Ridge Rd., 1.3 km N Bee Peak and 5.4 km NW Bolero Lookout, Irvine Ranch Conservancy. 377 Comment
  RSA751317  Achillea millefolium A. C. Sanders, Fred M. Roberts 2008-5-6 35271 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  RSA33592  Achillea millefolium var. californica N. C. Cooper 1944-6-4 1345 Orange San Juan Canyon. 305 Comment
  RSA773562  Achnatherum coronatum Fred M. Roberts 1999-5-14 5218 Orange Peninsular Ranges; Santa Ana Mts.: Lomas de Santiago, Loma Ridge; Upper Limestone Canyon on slopes above Bolero Spring, 2.4 km NNW Bolero Lookout 451 Comment
  UCSB18874  Acmispon glaber Shaw, Merrilee 1963-3-10 Orange South edge of Irvine Ranch, just east of Seaward Drive, about 0.5 mile north of U.S. Highway 101 and Corona del Mar 91 Comment
  SEINET5327559  Acmispon glaber var. glaber I. W. Clokey 1932-3-1 5329 Orange Laguna Beach; slopes facing ocean Comment
  SBBG3414  Acmispon heermannii var. heermannii J. M. Tucker 1941-5-30 261 Orange Ortega Hwy, 2 to 3 mi E of western boundary of Cleveland Nat Forest Comment
  OBI41040  Acmispon junceus var. junceus Melissa Thorme 1983-11-23 16 Orange Ad to S most housing tract in Corona Del Mar Comment
  SEINET5327567  Acmispon strigosus var. strigosus I. W. Clokey 1932-3-1 5328 Orange Laguna Beach; Bluff facing Ocean Comment
  RSA788924  Acourtia microcephala Fred M. Roberts 1999-7-1 5246 Orange Peninsular Range, Santa Ana Mtn.s Region: Lomas de Santiago; Lomas Ridge north of Dripping Springs Cyn., 1.1 km NW Dripping Springs and 2.1 km WSW Silverado School. 433 Comment
  RSA3142  Adenostoma fasciculatum var. obtusifolium Carl B. Wolf 1931-7-7 2276 Orange Procotr Valley, 4 miles above the Upper Otay reservoir on the road to Jamul (east of Mt. San Miguel). 244 Comment
Read comments
Jun 8 2016
  RSA701807  Adiantum capillus-veneris Fred M. Roberts 1999-7-22 5248 Orange Lomas de Santiago: Lomas Ridge, tributary to Limestone Canyon at Dripping Springs. Limestone Wilderness Park. 415 Comment
  SD247263  Adiantum capillus-veneris R. E. Riefner Jr. 2012-2-23 12 43 Orange City of Laguna Beach, Treasure Island Beach, vicinity of Wesley Drive and South Coast Highway. 0 Comment
  UC2031958  Adiantum capillus-veneris R. E. Riefner Jr. 2012-2-23 12 -43 Orange City of Laguna Beach, Treasure Island Beach, vicinity of Wesley Drive and South Coast Highway Comment
  RSA739331  Adiantum jordanii Keith E. Hoffmaster 1928-1-26 29 Orange Santa Ana Mtns Comment
  IRVC3119  Adiantum raddianum Don Pfirrmann 1965-4-28 HS 0579 Orange Newport Beach; 252 Mayflower Drive. Southern Coastal Comment
  RSA679216  Agoseris grandiflora var. grandiflora Fred M. Roberts 2003-6-17 5917 Orange Just NE of Falcon roup Camp, 2.1km ESE Los Pinos Peak just west of main road. 1009 Comment
  SEINET3237806 Image available Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-7-16 3581 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon. 325 Comment
  UCSB48019  Agrostis stolonifera Roberts, Fred 1980-7-1 Orange Irvine; San Diego Creek, 0.2 km NE Interstate 5; 2.0 km WSW Bench Mark 343 85 Comment
  UC537288  Agrostis viridis Lawrence M. Booth 1932-6-7 1163 Orange Newport Lagoon 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
  RSA725525  Ailanthus altissima Fred M. Roberts, Robert L. Allen 2007-9-28 6599 Orange Foothill Trabuco area: Upper Aliso Creek at SE corner of El Toro Road and Valle Vista Way, c.a. 1.8 km NE Upper Oso Reservoir. 308 Comment
  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
  UCSB18193  Allium haematochiton 1962-3-9 Orange 12.3 miles east of San Juan Capistrano on State 74 243 Comment
Read comments
Apr 10 2016
  RSA637489  Allium monticola Valerie L. Soza, LeRoy Gross 1999-6-10 509 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off Main Divide Road. 1524 Comment
  RSA678523  Allium monticola Fred M. Roberts, David E. Bramlet 2002-6-6 5526 Orange Main Divide Truck Trail, west slope of Modjeska Peak, 0.4km WNW summit. 1457 Comment
  CAS-BOT-BC132051  Allium peninsulare var. peninsulare P. C. Everett; E. R. Johnson 1935-5-29 7092 Orange Santa Ana Mts., Summit of Claymine Canyon 762 Comment
  CAS-BOT-BC474098  Allium praecox Munz; L. Street; Williams 1919-5-3 2635 Orange Santa Ana River Canyon Comment
  UCR280725  Allium praecox Mitch Provance, Jeremiah George 2017-3-20 317- 01 Orange West Coyote Hills, Fullerton, west side of Gilbert Street on land previously occupied by oil fields. 138 Comment
  UCR5206  Allium praecox Barbara T. Gittins, O. F. Clarke 1966-3-19 902 A Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  RSA16496  Allophyllum glutinosum Percy C. Everett 1935-6-18 7211 Orange Santa Ana Mts., summit of Santiago Pk. 1732 Comment
  RSA588705  Allophyllum glutinosum Fred M. Roberts, Carol A. Roberts 1990-5-23 4646 Orange Santa Ana Mtns.: West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5 km SE Los Pinos Peak. 756 Comment
  RSA7475  Allophyllum glutinosum C. B. Wolf 1933-8-24 5399 Orange Summit of Santiago Peak, Santa Ana Mountains 1731 Comment
  SD152789  Allophyllum glutinosum Steve Boyd, Tim Ross 1992-5-20 7452 Orange San Mateo Canyon Wilderness Area; western edge of the wilderness in Lucas Canyon along a new secdtion of trail heading up major side canyon northwart to Sitton Peak Road. 29 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
  UCSB52943  Allophyllum glutinosum Roberts, Fred 1983-9-26 Orange Santa Ana Mts.; Lion Canyon, Chiquito Basin Trail, 3.6 km NNE Lower San Juan Picnic Grounds; 4.0 km SSE Los Pinos Peak 820 Comment
  RSA708720  Alnus rhombifolia Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6121 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
  IRVC26717  Aloe striata Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3183 Orange UCI Arboretum Southern Coastal 15 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
  RSA751256  Amaranthus blitoides A. C. Sanders, Fred M. Roberts 2008-7-16 35880 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 358 Comment
  UCR193848  Amaranthus blitoides A. C. Sanders, Fred M. Roberts 2008-7-16 35880 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  CLARK-A1528-979  Amaranthus californicus Patricia A. Andrews 1975-6-26 5930 Orange Capistrano Bay Beach 9 Comment
  POM201880  Amaranthus hybridus L. M. Booth 1932-7-25 s.n. Orange Santa Ana River, 1 1/2 miles from ocean. Comment
  UCD97413  Amaranthus hypochondriacus A. R. Roos 1937-12-2 s.n. Orange Santa Ana. Comment
  RSA416883  Amblyopappus pusillus L. C. Wheeler 1932-6-25 859 Orange Newport Bay. 1 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
  UCR270998  Amblyopappus pusillus Mitch Provance, Travis Kegel 2016-4-8 416- 62 Orange Coastal Regions of Southern California, Newport Beach, W of the W end of 16th Street, and E of the Banning Oil Fields 32 Comment
  SEINET6738510 Image available Amblyopappus pusillus L. C. Wheeler 1932-6-25 859 Orange Newport Bay 1 Comment
  CAS-BOT-BC13608  Ambrosia acanthicarpa John Thomas Howell 1927-10-22 3164 Orange In Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA736129  Ambrosia acanthicarpa T. B. Salvato, Katie Kurtz 2006-10-15 1916 Orange South Coast: Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue. Coordinates +/-1000m 6 Comment
  UCR261707  Ambrosia acanthicarpa Dick Newell, Don Millar 2014-9-14 384 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon Wash, 0.1 mi. above the 241 Toll Rd./Foothill Transp. Corridor 202 Comment
  POM122718  Ambrosia chamissonis Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  UCR239934  Ambrosia chamissonis 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
  UCR42386  Ambrosia chamissonis A. C. Sanders 1986-5-31 6524 Orange Southern Coast, Balboa Island at Newport Beach. Dunes at the back edge of the beach, from 6th St. S to the harbor entrance 1 Comment
  RSA0019780  Ambrosia chamissonis Kevin B. Clark 2005-3-8 s.n. Orange Balboa, 200 yards south of Balboa Pier. In the city of Newport Beach, Near foot of E Street, on beach. 2 Comment
  RSA549992  Ambrosia confertiflora Scott D. White 1992-9-23 856 Orange Vicinity of Olinda, near city of Brea, immediately N of Carbon Cyn Rd & E of Placentia Ave.; ca. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  RSA743386  Ambrosia psilostachya Fred M. Roberts 2008-7-10 7066 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  RSA753036  Ambrosia psilostachya A. C. Sanders, Fred M. Roberts 2008-9-18 36073 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  UC537039  Ambrosia psilostachya Lawrence M. Booth 1932-7-19 1277 Orange Bolsas Marsh Comment
  POM12449  Ammannia robusta P. A. Munz 1922-9-2 6353 Orange Ponds in Laguna Canyon 46 Comment
  POM201704  Ammi visnaga L. M. Booth 1932-7-18 1268 Orange Santa Ana River, 1 mile from Ocean. Comment
  POM256962  Amorpha californica W. Pequegnat 1940-6-15 s.n. Orange Santa Ana Mountains: Modjeska Flat. 1372 Comment
  JEPS35488  Amorpha fruticosa John Thomas Howell 1927-6-6 2449 Orange Rancho Santa Ana Santa Ana Canyon, Santa Ana River bottom 152 Comment
  RSA697898  Amorpha fruticosa R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  UC1178236  Amsinckia intermedia Francia Chisaki 1957-4-3 926 Orange 6 mi s Irvine (jus s of El Toro near top of hill on Hwy 101) Comment
  RSA0089446  Amsinckia intermedia Daniel Truong 1991-5-5 10 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of closed area. 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
  IRVC204  Amsinckia menziesii var. intermedia L. Aldis 1965-4-27 Orange Irvine Park Comment
  HSC17835  Anagallis arvensis J. W. Johnson 1961-3-29 Orange Newport Beach, on S side of upper Newport Bay Comment
  UCR102025  Anagallis arvensis B. G. Pitzer 1997-3-25 3016 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR239627  Anagallis arvensis Fred M. Roberts 2012-4-24 7516 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
  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
  RSA465158  Anagallis arvensis N. C. Cooper 1944-6-4 1353 Orange San Juan Canyon, lower camp ground. 457 Comment
  RSA309584  Anemopsis californica J. R. Shevock 1974-4-28 3428 Orange Along Pacific Coast Highway 0.3 mile west of Brookhurst toward Beach Blvd. 3 Comment
  RSA652673  Anemopsis californica R. Spence 1974-8-13 s.n. Orange Upper Newport Bay. Hillsides around Bay. Comment
  POM202162  Anthemis cotula L. M. Booth 1932-5-15 1200 Orange Santa Ana River, 1/2 miles from ocean Comment
  UCSB48013  Anthemis cotula Roberts, Fred 1980-6-30 Orange Irvine; near east end of Veeh Reservoir at corner of Ridgeroute and Peralta Rd. 92 Comment
  UCR192216  Anthriscus caucalis A. C. Sanders, Fred M. Roberts 2008-5-6 35255 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
  SEINET3078495 Image available Antirrhinum coulterianum Jim Heurne, Geoffrey Matthews, Robin Mastche 1951-5-15 s.n. Orange 3 miles north of Morrill Valley on Hwy 74. Comment
  UCR203910  Antirrhinum multiflorum R. E. Riefner Jr. 2008-7-21 08- 248 Orange Santa Ana Mountains, Irvine Ranch Reserve, North Irvine Ranch, middle Fremont Canyon, east slope along Black Star SCE Road 718 Comment
Read comments
Sep 5 2010
  RSA701675  Antirrhinum nuttallianum L. C. Hull 1939-9-8 s.n. Orange Laguna Hills Comment
  POM4240  Antirrhinum nuttallianum subsp. nuttallianum I. M. Johnston 1918-5-4 1888 Orange Back of Laguna Beach, moist shaded hillside 61 Comment
  RSA699  Antirrhinum nuttallianum subsp. nuttallianum J. T. Howell 1927-6-26 214 Orange Claymine Canyon near Sierra Peak. 244 Comment
  RSA80436  Antirrhinum nuttallianum subsp. nuttallianum F. W. Peirson 1923-5-5 4489 Orange Trabuco Canyon, Santa Ana Mountains 518 Comment
  UCR224161  Antirrhinum nuttallianum subsp. subsessile Fred M. Roberts 2008-3-19 6784 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  UC1607981  Apiastrum angustifolium Donald G. Nelson 1935-4-6 228 Orange just s of boundary of Cleveland National Forest (e of San Juan Capistrano, northward from the summer ranger station at main Hwy up San Juan Canyon); San Juan Canyon Comment
  RSA749833  Apium graveolens A. C. Sanders, Fred M. Roberts 2008-6-17 35469 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  POM3324  Apium graveolens D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon Comment
  UCR241665  Apocynum cannabinum Dick Newell, Judy Booth 2013-5-28 331 Orange Peninsular Range; Santa Ana Mtns., Agua Chinon Wash, 1.12 mi. due west of Bolero Point, Limestone Canyon Rd. 269 Comment
  UCR47864  Arabis glabra David Charlton 1987-5-4 s.n. Orange Santa Ana Mtns., Chiquito Basin, Trail from Blue Jay Campground to Chiquito Falls 762 Comment
  IRVC19395  Araujia sericifera R. L. Allen 1983-2-12 A627 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  RSA0089133  Araujia sericifera Eric Focht 2016-7-8 001 Orange South Coast: University of California Research and Extension Center, 7601 Irvine Blvd., Irvine. 13 Comment
  UC1120811  Arbutus menziesii A. Lewis May 1934 427 Orange Cleveland National Forest, Trabuco Canyon Trabuco Canyon; Cleveland National Forest, Trabuco Canyon 1158 Comment
  UCR129346  Arbutus menziesii C. B. Wolf 1933-11-8 05534 Orange Santa Ana Mtns., Trabuco Canyon on the south wall opposite the Trabuco Truck Trail 915 Comment
  RSA767  Arctium lappa J. T. Howell 1927-6-30 253 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA629336  Arctostaphylos glandulosa Jon E. Keeley 1992-6-12 15521 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  UCR145821  Arctostaphylos glandulosa June Latting 1973-1-2 s.n. Orange Santa Ana Mountains, Silverado Canyon, 6.3 miles from Silverado Forest Station [presumably up canyon from Silverado] at 'S' curve in road 1220 Comment
  UCR282327  Arctostaphylos glandulosa A. C. Sanders, Yi Huang 2017-3-3 42701 Orange Peninsular Range; Santa Ana Mtns., North Main Divide Road, 3.5 km north of Hwy 74 960 Comment
  IRVC1252  Arctostaphylos glandulosa subsp. glandulosa A. S. Boughey 1965-3-16 69 Orange Silverado Canyon. Santa Ana Mountains Comment
  RSA626920  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15505 Orange Hotshot Camp, north of Ortega Highway (Highway 74). 900 Comment
  UC1120327  Arctostaphylos glandulosa subsp. zacaensis H. A. Jensen 1937-11-4 442 Orange head of Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  UC1137197  Arctostaphylos glandulosa subsp. zacaensis Willis E. Pequegnat 1940-6-19 Orange head of West Ladd Canyon Cleveland National Forest, Corona Quadrangle, Santa Ana Mts. 914 Comment
Read comments
Apr 2 2014
  UCR191667  Arctotheca prostrata Robert DeRuff 2004-1 548 Orange South Coast, Newport Beach, Upper Newport Bay, bluff below Eastbluff North 18 Comment
  UCR247450  Arctotheca prostrata R. E. Riefner Jr. 2013-7-6 13- 125 Orange South Coast, city of Irvine, Irvine Valley College, Irvine Center Drive near College Street 37 Comment
  RSA607257  Arctotis venusta L. C. Wheeler 1933-10-21 2224 Orange Newport Bay. 3 Comment
  RSA234498  Arctotis venusta James Henrickson 1970-7-25 5091 Orange 2 miles NE of Huntington Beach near north end of Bolsa Chica Salt Marsh. 0 Comment
  UCR215291  Aristida adscensionis Fred M. Roberts, D. E. Bramlet 2008-5-13 6953 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  RSA588883  Aristida ternipes var. hamulosa Fred M. Roberts, Dave Bontrager 1990-6-5 4672 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
  POM201782  Artemisia californica L. M. Booth 1932-7-27 1327 Orange Corona del Mar, Newport Bay. Comment
  UCR131888  Artemisia californica J. Mallory, V. McCoy 1995-6-30 6454- 63 Orange Santa Ana Mountains: S-facing slope on Windy Ridge, c. 2.5 mi. south of 91 fwy. Comment
  UCSB16965  Artemisia californica Gerhart, Janet 1963-2-22 Orange 1.5 miles above locked gate on dirt road, Trabuco Canyon, 17.4 miles east of U.S. Highway 101 at El Toro Marine Base, 2.5 miles by air southeast of Santiago Peak 457 Comment
  CHSC35340  Artemisia douglasiana James Henrickson 1972-10-21 8048 Orange Eastern Anaheim, 2 blocks E of Imperial Hwy, along La Palma Ave., just N of Santa Ana River. 60 Comment
  SEINET3285075 Image available Artemisia douglasiana A. C. Sanders, Fred M. Roberts 2008-9-18 36075 Orange Peninsular Range; Santa Ana Mtns. Foothills; Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  UCR228767  Artemisia douglasiana Dick Newell, Don Millar 2011-7-19 205 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon Rd. at junction to Dripping Springs 312 Comment
  CHSC35807  Artemisia dracunculus James Henrickson 1973-10-21 8052 Orange Eastern Anaheim, 2 blocks E of Imperial Hwy along La Palma Ave., just N of Santa Ana River. 60 Comment
  UCR242921  Artemisia dracunculus Dick Newell, Don Millar 2013-6-25 335 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, 2.25 miles southeast of Augustine Staging Area 339 Comment
  RSA773  Artemisia dracunculus J. T. Howell 1927-9-24 745 Orange Santa Ana Botany Garden 152 Comment
  RSA0059638  Arthrocnemum subterminale Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1107 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  RSA70038  Arthrocnemum subterminale F. W. Peirson 1924-8-29 5091 Orange Corona Del Mar Comment
  RSA12377  Arundo donax C. B. Wolf, E. R. Johnson 1934-3-21 5579 Orange Santa Ana River, Santa Ana Canyon, 1/2 mi. S.W. of Mexican Houses, Rancho Santa Ana. 122 Comment
  RSA743474  Arundo donax Fred M. Roberts 2008-10-9 7121 Orange Dana Point: Dana Point Headlands, CNLM Preserve, at base of cliff adjacent to Dana Strands Beach, 0.8km WNW Marine Institute (Dana Point Harbor). 3 Comment
  IRVC29787  Arundo donax Mark A. Elvin, Dean Kelch 2006-12-9 5310 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  RSA0031759  Arundo donax R. F. Thorne 1977-11-21 50815 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA549704  Asclepias californica Terry J. O Brien 1992-5-23 1204 Orange Cleveland National Forest, trail S of Blue Jay Campgrounds. 1037 Comment
  RSA695984  Asclepias californica Keith E. Hoffmaster 1936-5-3 s.n. Orange Holy Jim Canyon. Comment
  UCR235513  Asclepias curassavica R. E. Riefner Jr. 2011-8-19 11- 100 Orange South Coast, city of Laguna Beach, bluff area west of West Street and Pacific Coast Highway 4 Comment
  RSA49951  Asclepias eriocarpa E. K. Balls 1949-6-11 13494 Orange heavy clay and stone, steep dry benches, Rancho Santa Ana 2 mi below entrance to Botanic Garden, Santa Ana River Canyon. 122 Comment
  RSA49952  Asclepias eriocarpa E. K. Balls 1949-6-11 13494 Orange heavy clay and stone, steep dry benches, Rancho Santa Ana 2 mi below entrance to Botanic Garden, Santa Ana River Canyon. 122 Comment
  RSA563  Asclepias eriocarpa J. T. Howell 1927-7-16 417 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR193766  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-7-3 35672 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  IRVC19696  Asclepias fascicularis Karlin G. Marsh 1983-5-25 s.n. Orange Sycamore Hills, Laguna Canyon; freshwater marsh between Laguna Canyon laterals 6 & 7. Laguna Beach Comment
  JEPS5080  Asclepias fascicularis L. M. Booth 1932-7-21 1291 Orange Anaheim Creek Comment
  RSA0022438  Aspidotis californica R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49797 Orange Santa Ana Mountains: Trabuco Canyon Comment
  IRVC178  Asplenium bulbiferum Ray Nesheim 1965-5-11 HS0565 Orange Balboa Island. Southern Coastal Comment
  PASA1804  Aster exilis Frank W. Peirson 1919-11-8 Orange Aliso Creek at Tie Canyon, San Gabriel Mts. Comment
  RSA562611  Aster radulinus Steve Boyd, Fred M. Roberts 1992-10-14 7715 Orange Northern Santa Ana Mountains, vicinity of Oak Flats (aka Oat Flats) northeast of the junction of Main Divide Road and Skyline Road, just west of Riverside County line 800 Comment
  CDA23617  Aster subulatus var. ligulatus A. Thomas, Mark A. Elvin 2006-9-23 609232 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  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
  RSA749848  Astragalus gambelianus D. Bramlet, Jim Harrison 2008-4-3 4147 Orange South Bee Canyon, Bowerman landfill site. 1.2 km S of the Bee Cyn. access road, and 122 m W of the active landfill. Comment
  HSC14575  Astragalus trichopodus var. lonchus S. M. Clapp 1966-4-9 38 Orange Just S of Brea Canyon Rd. and 1 mi. N of Brea. Union Oil Proper. 61 Comment
  UC484247  Astragalus trichopodus var. lonchus C. B. Wolf 1931-3-6 1860 Orange 1 1/2 mi below Trabuco Camp Grounds (Trabuco Canyon, w slope Santa Ana Mts.); w slope Santa Ana Mts., Trabuco Canyon 548 Comment
  RSA415813  Astragalus trichopodus var. lonchus L. C. Wheeler 1931-8-16 s.n Orange Santa Ana River Canyon. 122 Comment
  UC1286978 Image available Astragalus trichopodus var. phoxus C. L. Hitchcock 1966-3-15 24141 Orange Stearns Lease, 1 1/2 miles e. of Brea Comment
  RSA743663  Atriplex R. E. Riefner 2006-9-6 6 -425 Orange City of Newport Beach, Newport Bay, Big Canyon Creek drainage near Back Bay Dr. 9 Comment
  SBBG122000  Atriplex amnicola R. E. Riefner 2006-8-6 06 -381 Orange Big Cyn Crk drainage near Back Bay Drive, Newport Bay 8 Comment
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Dec 13 2012
  RSA234533  Atriplex californica James Henrickson 1970-8-15 5282 Orange 3 miles NW of Huntington Beach, in Monanthochloe Salicornica dominated area north of Bolsa Bay, 3/4 mile SE of Warner Ave. 0 Comment
  UC1543080  Atriplex californica Donald G. Nelson 1935-6-27 327 Orange on bluffs facing ocean beaches s Corona del Mar (s of mouth of Newport Bay); s of Corona del Mar, s of mouth of Newport Bay Comment
  UCR266400  Atriplex californica D. E. Bramlet 1991-5-15 3055 Orange South Coast, Dana Point 30 Comment
  UCSB56683  Atriplex californica Roberts, Fred 1985-7-9 Orange Crystal Cove State Park; Pelican Point, 1.9 km. SW Pelican Hill 15 Comment
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Feb 9 2020
  RSA255  Atriplex canescens J. T. Howell 1927-10-22 761 Orange Near Eastern Boundary, Rancho Santa Ana. 152 Comment
  UC536969  Atriplex canescens Lawrence M. Booth 1932-7-23 1301 Orange Corona del Mar , Corona del Mar (Newport Beach) Comment
  UCR240102  Atriplex canescens Dick Newell, Judy Booth 2012-9-26 294 Orange South Coast, Newport Beach, Back Bay Drive at the Salt Dike 3 Comment
  IRVC24454  Atriplex canescens subsp. canescens Fred M. Roberts 1985-11-20 2560 Orange Newport Back Bay, near Camp Survey Mark, Newport Beach 2 Comment
  IRVC25344  Atriplex canescens subsp. canescens Helen Camp 1988-12-7 12 Orange Aliso Canyon, 2.6km NNE Aliso Peak, Aliso-Wood Canyon Regional Park 37 Comment
  CAS-BOT-BC172636  Atriplex coulteri LeRoy Abrams 1903-4-18 3270 Orange Trabuco Arroyo near Capistrano Comment
  RSA655236  Atriplex coulteri D. E. Bramlet 1998-5-25 2628 Orange 120m north of the Newport Beach Library and 61m west of McArthur Blvd. 914m south of San Miguel Drive. 15 Comment
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Feb 3 2015
  UCR252230  Atriplex coulteri Marissa Manahan 2011-5-7 s.n. Orange Newport Beach, Corona Del Mar State Beach; south of Avocado Ave. off Ocean Blvd. 25 Comment
  CDA23267  Atriplex glauca R. E. Riefner Jr. 2005-12-13 05 -784 Orange Lake Forest; E side of SR-241, ca. 0.5 mi. N of Alton Pkwy. Comment
  CDA23271  Atriplex glauca R. E. Riefner Jr. 2006-3-19 Jun- 52 Orange Newport Beach; Avocado Ave. near San Nicolas Dr.; W of MacArthur Blvd. Comment
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Dec 13 2012
  RSA488137  Atriplex glauca Fred M. Roberts 1985-8-30 2186 Orange Laguna Niguel: Niguel Hill, Pacific Island Rd., 1.4 km ESE Aliso Pk. 182 Comment
  POM318818  Atriplex lentiformis Patricia Wilder 1972-6-27 5388 Orange Along strand of Capistrano Beach 3 Comment
  CLARK-A1528-978  Atriplex lentiformis subsp. breweri Patricia A. Andrews 1998-5-20 Orange Capistrano Bay Beach 9 Comment
  JEPS48895  Atriplex pacifica Lawrence M. Booth 1932-5-19 1069 Orange Newport Bay Comment
  RSA247  Atriplex pacifica J. T. Howell 1927-7-17 420 Orange Near Laguna Beach. 30 Comment
  UCR151119  Atriplex polycarpa Scott D. White 1998-10-15 7185 Orange Santa Ana Mtns foothills, Yorba Linda, c. 0.5 mi south of Telegraph Canyon between Ohio St. and Fairmont 305 Comment
  IRVC21320  Atriplex rosea Fred M. Roberts 1982-7-31 789 Orange 0.3km NNW Clemente Survey Mark; 1.2km NNE Civiv Center, San Clemente 220 Comment
  RSA696212  Atriplex rosea Keith E. Hoffmaster 1934-5-31 s.n. Orange Santa Ana. Comment
  POM201893  Atriplex rosea L. M. Booth 1932-8-5 s.n. Orange West Newport Beach Comment
  UC1714443  Atriplex semibaccata P. A. Munz 1934-3-26 13136 Orange edge of salt marsh Newport Beach Newport Beach 4 Comment
  UCR130494  Atriplex semibaccata R. E. Riefner Jr. 2002-5-4 02- 90 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  UCR152758  Atriplex semibaccata D. E. Bramlet, K. Peterson 2003-3-19 3346 A Orange South Coast, bluffs below the Ritz-Carlton, upper Salt Creek, Salt Creek Beach Park Comment
  UCSC000222  Atriplex semibaccata I. J. Condit 2008-7-20 s.n. Orange Los Alamitos Comment
  POM279025  Atriplex semibaccata Grant D. Brown 1949-10-9 400 Orange Three Arches, 2 miles S of Laguna Beach on Hwy. Alt. 101. 30 Comment
  UCSB48087  Atriplex semibaccata Roberts, Jr., Fred 1981-5-2 Orange Mission Viejo; Camino Capistrano, 1.7 km. N Crown Valley Parkway 49 Comment
  RSA292521  Atriplex serenana James Henrickson 1972-10-21 8064 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
  RSA297187  Atriplex serenana L. M. Booth 1932-7-1 1248 Orange Newport Bay. 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-BC176589  Atriplex serenana var. davidsonii L. R. Abrams 1917-6-23 6571 Orange Balboa Comment
  RSA452383  Atriplex serenana var. davidsonii L. C. Wheeler 1934-1-14 2363 Orange Aliso Creek near Laguna. 76 Comment
  RSA716661  Atriplex suberecta Fred M. Roberts, Amber Oneal 2004-8-18 6094 Orange San Juan Capistrno: Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  SD133116  Atriplex triangularis A. C. Sanders 1990-10-6 10189 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2.0 km inland of Highway 1. 0 Comment
  UCR116014  Atriplex triangularis George K. Helmkamp, E. A. Helmkamp 2000-10-18 6231 Orange Newport Bay, South side of the back bay. 6 Comment
  RSA411865  Atriplex truncata Gertrude Dunn 1930-8-9 s.n. Orange Vacant lot 1/2 mi. east of Huntington Beach. Comment
  POM201899  Atriplex watsonii L. M. Booth 1932-5-12 1001 Orange Newport Bay. Comment
  POM265719  Atriplex watsonii J. C. Roos 1937-9-1 2157 Orange Seal Beach. Comment
  RSA453967  Atriplex watsonii F. R. Fosberg 1930-7-10 S 3188 Orange Anaheim Landing. [Los Angeles Co. on label] Comment
  RSA65426  Atriplex watsonii F. W. Peirson 1924-2-10 4533 Orange Corona Del Mar Comment
  SD80969  Atriplex watsonii James Henrickson 1970-7-25 5033 Orange 3I(c) miles northwest of Huntington Beach on margin of Bolsa Bay, Ao mile southeast of Warner Ave., along Pacific Coast Highway. Comment
  UC1929653  Atriplex watsonii Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1100 Orange Seal Beach National Wildlife Refuge; Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  UCR14058B  Atriplex watsonii Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  UCR211857  Atriplex watsonii Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1100 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
  POM202119  Atriplex watsonii P. A. Munz 1934-3-26 13157 Orange Newport Beach. 5 Comment
  RSA697700  Avena barbata Anonymous s.n. Orange Orange County park Comment
  UCR193000  Avena barbata A. C. Sanders, T. B. Salvato 2008-5-13 35378 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  OBI7908  Avena fatua Kurt R. Neisess 1976-1-3 s.n. Orange Collected in the Fullerton Hills Comment
  RSA781941  Avena fatua Mark A. Elvin 2003-2-23 2316 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  SEINET3919709  Avena fatua Keith E. Hoffmaster 1936-4-14 708 Orange Santa Ana.; 0 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
  POM17840  Baccharis douglasii Philip A. Munz 1923-9-6 7733 Orange Holy Jim Canyon, Santa Ana Mts 762 Comment
  RSA93209  Baccharis douglasii F. W. Peirson 1923-9-7 4035 Orange Holy Jim Canyon, trail to Santiago Peak, Santa Ana Mts 595 Comment
  CDA10367  Baccharis emoryi Hill, Lee 1951-9-9 B 51632 Orange Santa Fe Railroad tracks, near Red Hill Avenue, Santa Ana. 0 Comment
  RSA232226  Baccharis emoryi James Henrickson 1970-10-3 5361 Orange 2 miles NW of Huntington Beach, common along raised roadsides in southern open portion of Bolsa Chica Salt Marsh. 0 Comment
  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
  UCR205875  Baccharis malibuensis R. E. Riefner Jr. 2008-6-25 08- 173 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Road 470 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
  RSA741701  Baccharis malibuensis R. E. Riefner Jr. 2008-7-2 08 -181 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Rd. 660 Comment
  CAS-BOT-BC99444  Baccharis pilularis Carl B. Wolf 1934-12-26 6262 Orange so. end of town of San Clemente 15 Comment
  UCD129430  Baccharis pilularis B. Pitzer 1997-11-8 3373 Orange Crystal Cove State Park: Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. Open areas adjacent to parking lot. 30 Comment
  UCR207595  Baccharis pilularis O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  IRVC27500  Baccharis salicifolia Mark A. Elvin 2004-5-2 3414 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA357140  Baccharis salicifolia R. F. Thorne 1975-4-6 45577 Orange Head of Newport Bay. Comment
  RSA607268  Baccharis salicifolia L. C. Wheeler 1931-8-16 s 28 Orange Santa Ana River 152 Comment
  UCR192736  Baccharis salicifolia A. C. Sanders, Fred M. Roberts 2008-5-6 35231 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  JEPS21259  Baccharis salicina L. M. Booth 1933-10-18 Orange Newport Beach Comment
  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
  UCR207540  Baccharis salicina O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCR194992  Baccharis sarothroides A. C. Sanders, Fred M. Roberts 2008-8-7 35997 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. near wash crossing, 1.0 mi. SSE of Walnut Canyon Reservoir 232 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
  SD248323  Bahiopsis laciniata R. E. Riefner Jr. 2013-4-5 13 56 Orange Anaheim Hills, vicinity Hidden Canyon Rd., at Avenue De Santiago 305 Comment
  CDA7901  Bassia hyssopifolia Adam Ontiveros 2008-7-8 PDR# 1543672 Orange Anaheim, 1750 S. Douglass Rd 0 Comment
  SD146318  Bassia hyssopifolia R. D. Goeden, D. W. Ricker 1965-7-7 Orange Tustin township, near Peters Canyon, Channel, east of Santa Ana Marine Corps Air Station. 60 Comment
  RSA234517  Batis maritima James Henrickson 1970-7-25 5034 b Orange 3.5 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along PCH 0 Comment
  CAS-BOT-BC106378  Bebbia juncea var. aspera Helen D. Geis 1902-1-1 s.n. Orange Santiago Canyon [Canon] 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
  RSA683221  Bidens laevis Scott D. White, Matt Carlton 2003-11-20 9876 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 37 Comment
  RSA717046  Bidens laevis Fred M. Roberts 2005-10-3 6289 Orange San Juan Capistrano: San Juan Creek, La Novia Road bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano. 27 Comment
  IRVC24282  Bidens laevis Fred M. Roberts, G. A. Marsh 1985-10-26 2519 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  IRVC20225  Bidens pilosa Fred M. Roberts, K. G. Marsh 1982-10-18 834 Orange Temple Hill, east margin of Top of the World School, Laguna Beach 295 Comment
  UC536947  Bidens pilosa Lawrence M. Booth 1932-7-19 1276 Orange Bolsas Marsh Comment
  CAS-BOT-BC127999  Bidens pilosa Ira L. Wiggins 1965-11-5 20328 Orange Orange grove on N. side of Chapman Avenue near Kraemer Road, Fullerton Comment
  RSA695712  Bidens pilosa Keith E. Hoffmaster 1926-12-18 s.n. Orange Santa Ana Comment
  RSA731650  Bidens pilosa var. pilosa Fred M. Roberts 2007-10-29 6629 Orange Laguna Beach: Temple Hill, Nyes Place, ca. 0.2 km S Moulton Meadows Park. 232 Comment
  RSA698736  Bloomeria crocea Minor Warne 1934-04 s.n. Orange Panerama Heights Comment
  UCR16608  Bloomeria crocea var. crocea Kenneth Hibberd 1966-4-30 660430- 3 Orange 0.5 mi S on Mohler Rd. in the Santa Ana Canyon, 5 mi west of Riverside Co. 244 Comment
  RSA362294  Boisduvalia densiflora Fred M. Roberts 1985-6-7 1861 Orange Santa Ana Mountains: Main Divide Truck trail, 2.2km ESE Los Pinos Peak. 1005 Comment
  CAS-BOT-BC31011  Bolboschoenus maritimus John Thomas Howell 1927-6-30 2618 Orange Alkaline coastal plain 7 miles E of Long Beach. 15 Comment
  CAS-BOT-BC31016  Bolboschoenus maritimus Helen D. Geis 1902-11-1 s.n. Orange Santa Ana Peat Lands. Comment
  CAS-BOT-BC21114  Bolboschoenus maritimus subsp. paludosus James R. Shevock 1972-9-27 2292 Orange South Coast Ranges. Upper Newport Bay, city of Newport Beach. 1 Comment
  UC520300  Bolboschoenus robustus Joseph Andorfer Ewan 1932-7-29 7728 Orange Newport Lagoon Comment
  UCD55403  Bolboschoenus robustus B. Pitzer 1996-4-30 2772 Orange Upper Newport Bay, California Dept. Fish and Game Ecological Reserve, off (W of) Jamboree Rd. UTM 10 km cell: MH-1E, 2N. Costa Mesa. 6 Comment
  RSA735168  Bothriochloa barbinodis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35281 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCD63676  Bothriochloa barbinodis Daniel Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel. Dana Point Highlands. Crown Valley Parkway-Pacific Island Drive. 70 Comment
  UCR2146  Bothriochloa barbinodis F. M. Reed 1926-4-10 6583 Orange Mesa north of Dana Point Comment
  SD245200  Bothriochloa barbinodis R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49623 Orange Santa Ana Mountains: along Ortega Highway (74), about 1/4 mile above San Juan Fire Station. 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
  CAS-BOT-BC95400  Bowlesia incana Scott D. White; Noel Davis 1998-4-24 6339 Orange Mission Viejo Area: Aliso Creek watershed, E of El Toro Rd., N of jct. with Valley Vista Way 500 Comment
  CAS-BOT-BC95405  Bowlesia incana John Thomas Howell 1928-2-26 s.n. Orange Hills on N side of Santa Ana Canyon 152 Comment
  POM201613  Bowlesia incana L. M. Booth 1932-5-19 1065 Orange Newport Bay. Comment
  UC536937  Bowlesia incana Lawrence M. Booth 1932-5-19 1065 Orange Newport Bay Comment
  POM8809  Bowlesia incana P. A. Munz, R. D. Harwood 1920-4-24 3778 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA716781  Boykinia rotundifolia Fred M. Roberts, Michelle Balk, Robert Allen, Chris Barnhill 2004-6-19 6061 Orange Santa Ana Mtns.: Holy Jim Cyn.: Holy Jim Falls along Holy Jim Trail, 3.0km SE summit of Santiago Peak. 658 Comment
  CAS-BOT-BC174031  Brachypodium distachyon Scott D. White; Jennifer H. Jones 2005-4-26 10973 Orange Laguna Beach area: City of Laguna Beach. 549 Nyes Place. Undeveloped lot within a residential neighborhood Comment
  UCR239225  Brachypodium distachyon Fred M. Roberts 2012-4-24 7509 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
  RSA678500  Brachypodium distachyon Fred M. Roberts, Robt. Allen, Carol A. Roberts 2003-5-11 5865 Orange Dana Point Headlands: hilltop, 0.6km SSW Richard Henry Dana School south of Pacific Coast Highway and north of Scenic Drive., (UTM: 11S - 04 33 104mE, 37 02 642mN) 73 Comment
  UCR192472  Brassica geniculata A. C. Sanders, Fred M. Roberts 2008-3-25 34540 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR193931  Brassica geniculata A. C. Sanders, Fred M. Roberts 2008-7-16 35863 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  CLARK-A1528-982  Brassica nigra Patricia A. Andrews 1975-6-26 5915 Orange Capistrano Bay Beach 9 Comment
  IRVC1042  Brassica nigra B. Mawdsley 1965-4-18 Orange Corona del Mar. Newport Beach Comment
  RSA0043350  Brassica nigra David Barrios 1991-5-8 40 Orange 1500 ft. northwest of Fairmont Ave and Quail Cir., Yorba Linda. 365 Comment
  CAS-BOT-BC36765  Brassica rapa Ira L. Wiggins 1965-10-24 20292 Orange On south side of Yorba Linda Boulevard, 0.25 mile east of State College Boulevard, Fullerton. Comment
  IRVC1014  Brassica rapa subsp. sylvestris 1965-5-25 Orange Corona del Mar, Begonia Ave. D.C. Newport Beach 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
  SEINET7907479  Brassicaceae G. A. Wojciechowski 1967-1 Orange San Juan Capistrano beside rd 610 Comment
  IRVC22177  Brickellia nevinii Gordon A. Marsh, K. G. Marsh 1985-9-22 Orange Silverado Truck Trail, ridge north of Williams Canyon adjacent to White Canyon, 2.7km SE Silverdo Guard Station; Santa Ana Mountains 500 Comment
  RSA584704  Brickellia nevinii Fred M. Roberts, Carol A. Roberts 1989-5-11 4352 Orange Gypsum Canyon, 2.9 km WSW Sierra Peak, about 3.3km S by road of Santiago Canyon Road. 189 Comment
  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
  JEPS7700  Brodiaea terrestris subsp. kernensis Alice King Jun 1908 Orange Santa Ana Mts. Comment
  CAS-BOT-BC144327  Bromus Le Roy Abrams 1901-6-1 1830 Orange Mount Santiago Trail. 914 Comment
  POM50858  Bromus carinatus Le Roy Abrams 1901-06 1844 Orange Mt. Santiago. Comment
  RSA734118  Bromus carinatus A. C. Sanders 2008-4-29 35144 Orange Peninsular Range;Santa Ana Mtns.: Lomas de Santiago, western end of Loma Ridgeon road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  CAS-BOT-BC149276  Bromus carinatus var. carinatus Ira L. Wiggins 1966-3-16 20528 Orange Roadside bank near entrance to Firestone Boy Scout Reservation. Comment
  CAS-BOT-BC148924  Bromus carinatus var. marginatus Le Roy Abrams 1901-6-1 1844 Orange Santiago Peak. Comment
  SEINET14401104  Bromus catharticus Czarnecki 1966-5-20 108 Orange Near State College Blvd and Yorba Linda Blvd, Fullerton Comment
  CAS-BOT-BC156002  Bromus diandrus John Thomas Howell 1927-6-9 2466 Orange North side Santa Ana Canon [Canyon]. 152 Comment
  CAS-BOT-BC156004  Bromus diandrus Ira L. Wiggins 1966-3-1 20483 Orange Fullerton. Orange grove at corner of South Campus Drive and State College Boulevard. Comment
  RSA747698  Bromus hordeaceus Fred M. Roberts 2008-4-16 6914 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8 km W Marine Institute, Dana Point Harbor. 60 Comment
  UCR192104  Bromus madritensis A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35306 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  IRVC29091  Bromus madritensis subsp. rubens Fred M. Roberts 1989-3-17 4206 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  UC149788  Bromus madritensis subsp. rubens H. M. Hall May, 1902 3283 Orange along Santa Ana River Santa Ana River 182 Comment
  RSA699743  Bromus pseudolaevipes Fred M. Roberts, David E. Bramlet 2003-5-15 5876 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
  RSA42  Bromus rubens J. T. Howell 1928-2-26 857 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  CDA22568  Bromus tectorum J. B. Anderson 1966-4-19 601 Orange Upper Newport Bay. 0 Comment
  RSA696619  Bromus unioloides Keith E. Hoffmaster 1934-04 79 Orange Santa Ana. Comment
  POM543  Cakile edentula subsp. edentula D. L. Crawford 1916-7-28 s.n. Orange Abalone Point Comment
  RSA678743  Cakile maritima Valerie Soza, Kenneth Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1113 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UCD114944  Cakile maritima Earl Brown; Tracy Brown 1993-5-2 s.n. Orange Calafia Beach Park, found 10' S of entrance to the beach (just before railroad tracks). 6 Comment
  CAS-BOT-BC438319  Calandrinia ciliata C. L. Hitchcock 1966-3-15 24136 Orange 1/2 mile e. of Brea Comment
  RSA681015  Calandrinia ciliata Fred M. Roberts, David E. Bramlet 2003-3-13 5578 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 197 Comment
  RSA734959  Calandrinia ciliata L. C. Hull 1934-3-7 s.n. Orange Laguna Hills Comment
  UC1136618  Calandrinia ciliata A. Lewis Mar 1934 344 Orange San Juan Hills Corona Quadrangle Comment
  UCR192501  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-3-25 34548 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR215304  Calandrinia maritima Fred M. Roberts 2008-4-2 6843 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, south of NE gate along bluff, 0.6 km west of Marine Institute, Dana Point Harbor 28 Comment
  RSA739270  Callistemon viminalis R. E. Riefner Jr. 2007-4-1 7 -163 Orange City of Laguna Niguel, Oso Creek, ca. 1.5 miles north from Paseo De Colinas Street on Camino Capistrano Street. 88 Comment
  RSA377257  Calochortus albus Albert J. Perkins 1914-5-3 s.n. Orange Trail to Santiago Peak. Comment
  RSA735172  Calochortus catalinae A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35289 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA741482  Calochortus catalinae R. E. Riefner 2008-4-20 8 -66 Orange On Loma Ridge, near city of Irvine, E side of Hicks Haul Rd., Irvine Ranch Reserve, Management Area 11. Comment
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Feb 2 2011
  UCR203898  Calochortus catalinae R. E. Riefner Jr. 2008-4-15 08- 71 Orange Irvine Ranch Reserve, north Irvine Ranch, Fremont Canyon Conservation Easement, west Fremont Canyon, lower Coalmine SCE Road 301 Comment
  UCR203974  Calochortus catalinae D. E. Bramlet 2008-3-26 4124 Orange Peninsular Range; Santa Ana Mountains, Bee Canyon, Bowerman landfill site. 148 m south of the Bee Canyon access road and 296 m west of the active landfill entrance Comment
  POM1697  Calochortus invenustus Le Roy Abrams 1901-6-15 1848 Orange Santiago Peak trail. Comment
  RSA649686  Calochortus plummerae R. E. Riefner 2000-7-8 20 -625 Orange NCCP North Ranch Policy Plan Area. On ridgeline overlooking upper W fork of Fremont Canyon; located E of Main Divide Road and SE from Windy Ridge cypress forest. 438 Comment
  RSA511062  Calochortus splendens Steve Myers 1989-5-4 s.n. Orange Head of Black Star Canyon, Santa Ana Mountains. 640 Comment
  RSA602119  Calochortus splendens Scott D. White 1997-5-6 5046 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 Comment
  CAS-BOT-BC492701  Calochortus splendens Philip A. Munz 1949-5-26 13371 Orange Skyline Drive, at head of Sierra Canyon; Santa Ana Mountains 762 Comment
  CAS-BOT-BC492702  Calochortus splendens Le Roy Abrams 1901-6-16 1798 Orange Trabuco Canon Comment
  CAS-BOT-BC492704  Calochortus splendens Agnes M. Bowman 1899-3-1 s.n. Orange El Modena Comment
  CAS-BOT-BC492705  Calochortus splendens Palmer Stockwell 1935-5-12 1216 Orange 7 miles E of Mission San Juan, Capistrano, on Elsinore Road Comment
  RSA761930  Calochortus splendens Suzanne Espino 2005-4-26 1 Orange Caspers Wilderness Park, East Ridge Trail. Near water tank 168 Comment
  SEINET7067518  Calochortus weedii A. G. Vestal 1947-6-12 s.n. Orange Upper San Juan Canyon on Route 74 to Lake Elsinore in Cleveland National Forest. Coordinate datum: NAD27. UTM Zone 11, 452352mE, 3716538mN. Comment
  RSA588981  Calochortus weedii var. intermedius D. E. Bramlet 1994-6-2 2381 Orange San Joaquin Hills. Ridgeline above ''Act V'' Canyon, 910m west of Laguna Canyon Road (S. of Laguna Bend area) and 457 m south of the intersection w/ the access road to Boat Canyon., The site is found adjacent to the dirt access road on an east-facing slope in the upper portion of the canyon 240 Comment
  RSA746536  Calochortus weedii var. intermedius R. E. Riefner 2008-6-5 8 -146 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
  RSA749792  Calochortus weedii var. intermedius D. E. Bramlet 2008-6-3 4287 Orange Upper Borrego Cyn, 136m SE of the access road and 1.5km west of Santiago Cyn Road 433 Comment
  RSA773559  Calochortus weedii var. intermedius Fred M. Roberts 2008-6-3 7025 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.3 km ENE of Rattlesnake Reservoir spillway and 2.2 km ENE Bee Peak 217 Comment
  UCR132986  Calochortus weedii var. intermedius Adrian Wolf 2000-6-22 470 Orange Santa Ana Mtns., North Ranch Policy Plan Area, East access road, Black Star Canyon 610 Comment
  UCR208444  Calochortus weedii var. intermedius R. E. Riefner Jr. 2008-6-5 08- 146 Orange South Coast, near city of Orange, west side of Hicks Haul Road, Rattlesnake Canyon southwest of the asphalt plant; Irvine Ranch Reserve, Management Area 6 Comment
  UCSB06831  Calochortus weedii var. intermedius Copeland, Herbert 1938-6-29 Orange Hills back of Laguna Beach Comment
  RSA542332  Calochortus weedii var. weedii Fred M. Roberts, Kathy Keane 1988-5-25 3999 Orange RANCHO MISSION VIEJO: Lower Canada Gobernadora, c.a. 2.4km SW Cliff Survey Marker. 110 Comment
  RSA0045493  Calochortus weedii var. weedii Wendy Boes 2009-6-19 2009 -019 Orange Peninsular Ranges; Santa Ana Mountains; Trabuco Canyon, off Long Canyon Rd. on water tank access road. 812 Comment
  POM6379  Calycadenia tenella Philip A. Munz 1919-5-3 2631 Orange Santa Ana River Canyon. Comment
  RSA750000  Calycadenia tenella A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35323 Orange 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
  RSA795  Calycadenia tenella J. T. Howell 1927-7-28 511 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  UCR191248  Calycadenia tenella A. C. Sanders 2008-4-29 35130 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
  RSA542425  Calycadenia tenella Fred M. Roberts 1988-5-25 3979 Orange Rancho Mission Viejo: Lower Canada Chiquita, 2.0 km SSE Medium Rancho Survey Mark 88 Comment
  RSA747592  Calystegia macrostegia Fred M. Roberts 2000-5-5 5320 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
  UCR109765  Calystegia macrostegia R. D. Goeden, Don W. Ricker 1965-6-21 s.n. Orange Dana Point 61 Comment
  RSA562765  Calystegia macrostegia subsp. arida Steve Boyd 1992-5-19 7419 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon. 366 Comment
  IRVC978  Calystegia macrostegia subsp. cyclostegia B. T. Gittins 1965-3-14 Orange bluff above cove. Dana Point Headlands Comment
  IRVC985  Calystegia macrostegia subsp. cyclostegia D. Van Gorden 1965-5-10 Orange Huntington Beach Comment
  CAS-BOT-BC221303  Calystegia macrostegia subsp. intermedia B. Pitzer; M. Georgiady 1997-4-5 3079 Orange San Joaquin HIlls: Crystal Cove State Park, along No Dogs Trail to just below intersection with Poles Trail 152 Comment
  RSA659546  Calystegia macrostegia subsp. macrostegia P. Shirokawa 1998-5-7 16 Orange Cleveland National Forest- Trabuco Ranger District, 0.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 808 Comment
  RSA0008257  Calystegia sepium subsp. limnophila L. M. Booth 1932-6-15 1192 Orange S.E. of Huntington Beach. Comment
  SD181587  Calystegia soldanella Valerie Soza, K Clark, L Gross, W Miller, F Roberts, G Wallace 2001-4-4 1114 Orange Anaheim Bay, Seal Beach National Wildlife Refuge; Seal Beach quad. Coastal sand dunes. 3 Comment
  UCR16118  Calystegia soldanella N. J. Moriarty 1973-5-20 730520- 4 Orange Huntington Beach, 0.5 mi. north of Brookhurst Street on the W side of Pacific Coast Hwy (=Hwy 1) Comment
  UCR157710  Camissonia Adrian Wolf 1998-5-15 294 A Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  RSA3184  Camissonia bistorta Carl B. Wolf 1938-3-8 2679 Orange Newport Bay, low bluffs bordering area, 1/2 mile north of Corona del Mar. 8 Comment
  RSA3262  Camissonia bistorta D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  UCR102028  Camissonia bistorta B. G. Pitzer 1997-3-25 3031 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
  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
  RSA759152  Camissonia californica 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
  RSA585184  Camissonia cheiranthifolia subsp. cheiranthifolia D. Atwood 1993-3-27 17699 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  UCR12582  Camissonia cheiranthifolia subsp. cheiranthifolia J. S. Davis 1972-5-6 720506- 16 Orange South Coast, Newport Beach, 100 yards from the corner of San Joaquin Hills Road and Back Bay Road. 0 Comment
  CSUSB191  Camissonia cheiranthifolia subsp. suffruticosa Steve Kulju 1974-5-27 Orange Seal Beach; One mile southeast of the city of Seal Beach on State Highway 1. 4 Comment
  POM123008  Camissonia cheiranthifolia subsp. suffruticosa Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA254974  Camissonia cheiranthifolia subsp. suffruticosa C. W. Tilforth 1975-3-9 1039 Orange Salt water marsh at north-east shoreline of Upper Bay, Newport Beach. Comment
  RSA698256  Camissonia cheiranthifolia subsp. suffruticosa R. H. McArthur 1934-4-7 s.n. Orange Near outlet of Santa Ana River Comment
  UCR151388  Camissonia cheiranthifolia subsp. suffruticosa Valerie Soza, Kevin Clark, , LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1111 Orange Coastal Plains & Basins; Los Angeles Basin region, Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 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
  SD87558  Camissoniopsis cheiranthifolia subsp. suffruticosa F. W. Peirson 1924-5-31 4670 Orange 5.0 miles south of Laguna; on sea bluffs. Comment
  UC306300  Camissoniopsis cheiranthifolia subsp. suffruticosa D. L. Crawford 1916-7-28 Orange Abalone Point Laguna Beach Region (sand dunes) Comment
  SD181434  Camissoniopsis micrantha Valerie Soza, Kevin Clark, et al. 2001-4-4 1125 Orange Seal Beach, U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UC2030082  Camissoniopsis micrantha Valerie Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1125 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. Comment
  IRVC9150  Capsella bursa-pastoris B. Gittins 1963-3-22 61 Orange Orange Coast College Campus. Costa Mesa Comment
  RSA271144  Cardamine californica var. integrifolia C. W. Tilforth, John Dourley, Walter Wisura 1978-3-10 1501 Orange along Ortega hwy 74, 2 miles NE of San Juan Forest Station, Santa Ana Mtns. Comment
  RSA369328  Cardamine californica var. integrifolia Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  POM96134  Cardamine californica var. integrifolia Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. 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
  IRVC9185  Cardaria draba B. Gittins 1963-4-21 178-B Orange vacant lot west of Bristol, near Randolph Street. Costa Mesa Comment
  POM202599  Cardaria draba L. M. Booth 1932-5-15 1197 Orange E of Hungtington Beach. Comment
  UC671794  Cardionema ramosissimum H. F. Copeland 1938-6-28 Orange hills back of Laguna Beach Comment
  UCR137449  Carduus pycnocephalus Scott D. White, Brian Leatherman 1997-6-12 5330 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
  UCR191008  Carduus pycnocephalus A. C. Sanders, Fred M. Roberts 2008-4-22 35019 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  CAS-BOT-BC119007  Carex pellita Helen D. Geis 1902-4-1 559 Orange Unspecified Comment
  CAS-BOT-BC118481  Carex praegracilis L. M. Booth 1932-6-1 1207 Orange Newport Bay. Comment
  CAS-BOT-BC118482  Carex praegracilis Helen D. Geis 1902-1-1 505 Orange Unspecified Comment
  CAS-BOT-BC118490  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Unspecified Comment
  CAS-BOT-BC118491  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Unspecified Comment
  CAS-BOT-BC118495  Carex praegracilis Helen D. Geis 1902-4-1 502 Orange Near Santa Ana Comment
  UC212128  Carex praegracilis I. M. Johnston 1918-5-5 1890 Orange El Toro 76 Comment
  CAS-BOT-BC118492  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Santa Ana, Peat lands Comment
  UC212053  Carex praegracilis D. L. Crawford 1916-3-15 726 Orange Santa Ana river Comment
  RSA737489  Carex triquetra D. E. Bramlet 2008-5-9 4264 Orange Ridgeline between the upper two tributaries of Wier Cyn. 1.2km east of S. Serrano Ave & 1.3km west of Gypsum Cyn. 330 Comment
  POM771  Carpobrotus chilensis D. L. Crawford 1916-8-1 s.n. Orange Aliso Point Comment
  SD40041  Carpobrotus chilensis Edith A. Purer 1932-8-31 4881 Orange Orange county along Route 101 Comment
  SEINET7896473  Carpobrotus chilensis P. S. Rattle 1939-3 Orange Balboa Island Comment
  UCR42449  Carpobrotus chilensis A. C. Sanders 1986-5-31 6530 Orange Southern Coast, Balboa Island at Newport Beach. Dunes at the back edge of the beach, from 6th St. S to the harbor entrance 1 Comment
  RSA704426  Carpobrotus edulis Fred M. Roberts, David E. Bramlet 2004-7-30 6083 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Cristianitos Cyn. along Cristianitos Ck., 1.1 km SSW Gato Gate and 0.32km W Cristianitos Road. 73 Comment
  UCR109768  Carthamus baeticus R. D. Goeden, Don 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
  RSA588724  Castilleja affinis Fred M. Roberts 1990-5-7 4606 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  UCR191326  Castilleja affinis A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34609 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  UCR228782  Castilleja affinis Dick Newell, Don Millar 2011-5-3 143 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  SDSU9686  Castilleja affinis subsp. affinis Curtis B. Kendall 1994-5-18 18 VI94B Orange County open-space, 100 meters west fo entrance gate to the National Audubon Society Starr Ranch Sanctuary, on south edge of access road. 317 Comment
  RSA305821  Castilleja applegatei subsp. martinii James R. Shevock 1970-4-25 160 Orange Near Irvine Lake. 305 Comment
  HSC20886  Castilleja exserta subsp. exserta J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  RSA743515  Castilleja exserta subsp. exserta Fred M. Roberts 2008-4-9 6866 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  UCR209355  Castilleja exserta subsp. exserta Fred M. Roberts 2008-4-8 6848 Orange Lomas de Santiago, Loma Ridge, Upper Dripping Springs Cnyn, 1.0 km northeast of Bee Peak, Irvine Ranch Conservancy 458 Comment
  RSA0043344  Castilleja foliolosa Nancy J. Mann 1976-5-20 s.n. Orange Harding Canyon, Santa Ana Mtns. Comment
  RSA708365  Castilleja martinii var. martinii Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6227 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  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
  RSA588889  Castilleja minor subsp. spiralis Fred M. Roberts Jr. 1990-6-4 4665 Orange Hall Canyon, 1.8 km NNW Mustang Spring at east edge of Flying B Ranch 421 Comment
  RSA682761  Caulanthus heterophyllus Scott D. White, Amanda Duchardt 2003-3-27 8854 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  HSC25256  Ceanothus crassifolius Richard Spjut 1972-2-16 2207 Orange Cleveland National Forest of Santa Ana Mtns. 305 Comment
  SD181362  Ceanothus crassifolius Paul Shirokawa 1998-5-15 37 Orange Cleveland National forset - Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Rd 960 Comment
  SBBG4144  Ceanothus crassifolius var. crassifolius M. Van Rensselaer 1941-5-30 1673 Orange Ortega Hwy (St Hwy 74) Comment
  RSA733936  Ceanothus divaricatus Keith E. Hoffmaster 1936-5-3 715 Orange Santa Ana Mts (Santiago Peak) Comment
  POM2821  Ceanothus integerrimus var. puberulus L. R. Abrams 1901-06 1843 Orange Mt. Santiago. Comment
  RSA17220  Ceanothus integerrimus var. puberulus Carl B. Wolf 1936-6-22 8002 Orange Santa Ana Mts. Slopes of Modjeska Pk. at abouit the Head of Harding Canyon. 1220 Comment
  RSA30303  Ceanothus leucodermis Carl B. Wolf 1941-8-15 11254 Orange W. slope of Santiago Truck Trail. 4.4 mi. below mai divide motorway. 1067 Comment
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Sep 20 2013
  UCSB47641  Ceanothus leucodermis Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail on fire break, 1.6km WNW Trabuco Peak, Santa Ana Mtns., 1295 Comment
  JEPS42110  Ceanothus megacarpus John Thomas Howell 1927-6-26 2609 Orange just w Sierra Peak (head of Calymine Canyon); Santa Ana Mts. Comment
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May 8 2008
  SD134389  Ceanothus megacarpus Craig Reiser 1987-6-26 Orange Anaheim, Wallace Ranch near Wier Canyon Road Comment
  SD247716  Ceanothus megacarpus R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49675 Orange Northern Santa Ana Mountains: Coal canyon [NW of Sierra Peak]. 456 Comment
  RSA488123  Ceanothus oliganthus var. sorediatus Fred M. Roberts, Karlin G. Marsh 1984-2-15 1186 Orange Caspers Regional Park, south rim of Lucas Canyon along Rancho Carrillo Rd., 4.2 km NE Visitor Center; 0.2 km NW Lucas Survey Marker. 420 Comment
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Sep 17 2014
  RSA399811  Ceanothus papillosus var. roweanus Albert J. Perkins 1917-4-21 s.n. Orange Santiago Peak. South side. Comment
  RSA399812  Ceanothus papillosus var. roweanus Christopher Davidson 1977-5-18 8898 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  RSA716773  Ceanothus papillosus var. roweanus Fred M. Roberts, Michelle Balk, Robert Allen, Chris Barnhill 2004-6-19 6064 Orange Snta Ana Mtns.: Holy Jim Cyn.: Holy Jim Trail, 2.0 km SE summit of Santiago Peak. 988 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
  CAS-BOT-BC53004  Ceanothus spinosus Le Roy Abrams 1901-6-16 1854 Orange Trabuco Canyon Comment
  CAS-BOT-BC53008  Ceanothus spinosus Carl B. Wolf 1936-6-17 7950 Orange Santa Ana Mts., along Ortega Highway, San Juan Canyon, 2/10 mi. W. of Riverside Co. line 274 Comment
  RSA17567  Ceanothus spinosus Carl B. Wolf 1936-6-17 7950 Orange Along Ortega Hiway, San Juan canyon, 0.2 mi. W. of Riverside Co. line. 274 Comment
  JEPS42109  Ceanothus tomentosus John Thomas Howell 1927-6-26 2608 Orange just w Sierra Peak (head of Calymine Canyon); Santa Ana Mountains Comment
  RSA77337  Ceanothus tomentosus F. W. Peirson 1922-5-19 3050 Orange small canyon heading eastward from the Santa Ana River Canyon 122 Comment
  SD247720  Ceanothus tomentosus R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49676 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 456 Comment
  CAS-BOT-BC277101  Centaurea melitensis John Thomas Howell 1927-6-20 2558 Orange On north side of Santa Ana Canon [Canyon] 228 Comment
  CLARK-A1528-916  Centaurea melitensis Patricia A. Andrews 1975-6-25 5927 Orange Capistrano Bay Beach 9 Comment
  POM13256  Centaurea repens E. Johnson 1922-6-12 s.n. Orange Greenville. Comment
  CDA7330  Centaurea solstitialis Robert L. Pope 1957-9-5 Orange 0 Comment
  RSA391514  Centaurium venustum M. B. Dunkle 1934-6-18 3993 Orange San Juan Canyon. 305 Comment
  UCR174185  Centaurium venustum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33020 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA391496  Centaurium venustum Robert Gustafson, Gary D. Wallace 1983-6-26 2706 Orange Santa Ana Mts, Clinton Keith Road near the Jct with the Tenaja road. Comment
  CAS-BOT-BC123546  Centromadia parryi subsp. australis David Daniels Keck 1933-9-29 2537 Orange Seal Beach. Comment
  CAS-BOT-BC288847  Centromadia parryi subsp. australis John Thomas Howell 1927-6-30 2615 Orange 7 miles E of Long Beach 15 Comment
  JEPS38140  Centromadia parryi subsp. australis L. M. Booth 1932-6-7 1169 Orange Newport Bay Comment
  RSA758074  Centromadia parryi subsp. australis D. E. Bramlet 2008-9-17 4306 Orange Upper Newport Bay, West Mesa, 76m E Irvine Ave. & 305m S of University Dr. 20 Comment
  UCR238167  Centromadia parryi subsp. australis Mark A. Elvin, Peter A. Bowler 2003-6-28 2957 Orange Southern Coast, Irvine, San Joaquin Freshwater Marsh, adjacent to UCI campus, SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCSB52862  Centromadia parryi subsp. australis Roberts, Jr., Fred 1985-9-17 Orange Irvine; lot between Walnut Ave., Harvard Ave. and Peter's Creek Channel; UTM 3730050mN, 426250mE 20 Comment
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Feb 22 2019
  RSA539366  Cercocarpus minutiflorus Fred M. Roberts 1989-2-21 4182 Orange Aliso-Woods Canyon Regional Park: Niguel Hill, 1.6 km ENE Aliso Peak. 268 Comment
  UCR99869  Cercocarpus minutiflorus Scott D. White 1996-12-20 4638 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA734595  Chaenactis artemisiifolia A. C. Sanders, Fred M. Roberts 2008-5-6 35224 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  SEINET7073425  Chaenactis artemisiifolia A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  UCR191239  Chaenactis glabriuscula A. C. Sanders, Fred M. Roberts 2008-4-22 34989 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  UCR193019  Chaenactis glabriuscula A. C. Sanders, Mitch Provance 2008-5-20 35415 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA113264  Chaenactis glabriuscula var. megacephala E. K. Balls 1955-4-4 20424 Orange N of Dana Poit off Hwy 101. 46 Comment
  RSA265770  Chamaesyce maculata J. C. Roos 1937-5-21 2066 Orange Grounds of St. Joseph's Hospital, Orange. Comment
  RSA507173  Chamaesyce polycarpa var. polycarpa Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mts. 274 Comment
  POM18084  Cheilanthes covillei Philip A. Munz 1923-9-7 7753 Orange Santa Ana Mountains: on trail from Holy Jim Canyon to Santiago Peak 1371 Comment
  RSA685793  Cheilanthes newberryi Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  RSA184162  Chenopodium album I. L. Wiggins 1966-5-25 20664 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton. Comment
  IRVC21772  Chenopodium ambrosioides Fred M. Roberts 1984-11-27 1440 Orange Novia St. bridge over San Juan Creek, 0.6km S Bench Mark 133, San Juan Capistrano 31 Comment
  UC582775  Chenopodium ambrosioides P. A. Munz 1936-6-30 14172 Orange 5 mi s Garden Grove Comment
  POM183953  Chenopodium californicum P. A. Munz 1932-3-29 12186 Orange Costa Mesa. Comment
  RSA731982  Chenopodium californicum A. C. Sanders, Fred M. Roberts 2008-4-8 34774 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  RSA734812  Chenopodium californicum A. C. Sanders, Fred M. Roberts 2008-3-25 34577 Orange Saddle on ridge near head of Weir Canyonm, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  CHSC35781  Chenopodium murale James Henrickson 1972-10-21 8057 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. along La Palma Ave., just N. of Santa Ana River. 60 Comment
  IRVC397  Chenopodium murale B. Newman 1965-3-31 Orange Corona del Mar, Jamboree Rd. Newport Beach Comment
  RSA731958  Chenopodium murale Fred M. Roberts, Sandy Leatherman 2007-11-27 6698 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  POM225242  Chenopodium strictum var. glaucophyllum P. A. Munz 1936-6-30 14174 Orange 5 miles south of Garden Grove. 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
  RSA788905  Chlorogalum pomeridianum var. pomeridianum Fred M. Roberts 2008-6-12 7045 Orange Lomas de Santiago: Loma Ridge Road north of Haul Rd., 2.6 km NW Bee Peak, Irvine Ranch Land Conservancy. 417 Comment
  POM50446  Chorizanthe parryi var. fernandina Helen D. Geis 1902-1 541 Orange Near Santa Ana Comment
  RSA749845  Chorizanthe procumbens D. Bramlet, Jim Harrison 2008-3-28 4132 Orange Bee Canyon. Bowerman landfill site.925 m S of the Bee Cyn. access road, 352 m W of the landfill entrance. Comment
  UC1952562  Chorizanthe procumbens D. Bramlet 1994-6-23 2388 Orange San Joaquin Hills. Pass area between Little Sycamore and Camarillo Canyons. The site is 945 m north of Camarillo Canyon and 213 m west of Laguna Canyon Road and 5 m west of the existing dirt road. Comment
  RSA392685  Chorizanthe staticoides Ella M. Kennedy 1923-5-14 s.n. Orange Laguna Beach. Comment
  RSA690974  Chorizanthe staticoides Scott D. White, Michael Honer 2003-5-29 9423 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  RSA698368  Chorizanthe staticoides Unspecified 1933-5-27 s.n. Orange San Joaquin Hills. Comment
  UC635059  Chorizanthe staticoides Herbert L. Mason 1926-4-25 2913 Orange 5 mi below Laguna; below Laguna Comment
  IRVC27934  Chrysanthemoides monilifera A. C. Sanders, Mark A. Elvin 2003-10-12 27324 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  UCR100460  Chrysanthemum coronarium B. G. Pitzer 1996-4-30 2763 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  IRVC14808  Cirsium occidentale var. californicum E. P. Cowper 1965-4-10 Orange Trabuco Canyon, passed Guard Station. Santa Ana Mountains Comment
  RSA788908  Cirsium occidentale var. occidentale Fred M. Roberts 2008-6-26 7060 Orange Lomas de Santiago: Loma Ridge along West Loma Ridge Road, c.a. 1 km N Haul Rd., 2.5 km NNW Bee Peak, Irvine Ranch Land Conservancy. 382 Comment
  RSA773523  Cistanthe monandra Fred M. Roberts 1999-5-14 5214 Orange Peninsular Ranges; Santa Ana Mts.: Lomas de Santiago, Loma Ridge; Upper Limestone Canyon on slopes above Bolero Spring, 2.4 km NNW Bolero Lookout 451 Comment
  RSA0013955  Clarkia bottae Fred M. Roberts 2008-5-7 6942 Orange Lomas de Santiago: Loma Ridge, Limestone Ridge between Dripping Spr. and Limestone Cyn., 3.5 km NW Bolero Lookout and 1.7 km E Bee Peak. Irvine Ranch Conservancy. 481 Comment
  RSA562745  Clarkia bottae Steve Boyd, T. S. Ross 1992-5-19 7441 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  RSA553113  Clarkia bottae Fred M. Roberts 1989-5-11 4344 Orange Santa Ana Mountains: Upper Blind canyon, east fork, along power line maintainance road, 3.9km SE Walnut Reservoir. 381 Comment
  UCR150923  Clarkia deflexa Valerie Soza, LeRoy Gross 1999-6-7 475 Orange Santa Ana Mountains, West side of Modjeska Peak, along Main Divide Road 1448 Comment
  SBBG4969  Clarkia epilobioides J. M. Tucker 1941-5-30 258 Orange Ortega Hwy, 2 to 3 mi E of western boundary of Cleveland National Forest Comment
  RSA637490  Clarkia purpurea subsp. quadrivulnera Valerie L. Soza, LeRoy Gross 1999-6-8 507 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA652344  Clarkia purpurea subsp. quadrivulnera T. Sargent 1959-5-17 s.n. Orange Car. [Carbon] Canyon above La Vida Springs. Comment
  RSA458857  Clarkia purpurea subsp. viminea M. B. Dunkle 1938-6-23 5381 Orange San Juan Capistrano. Comment
  RSA663157  Clematis lasiantha R. E. Riefner 2000-6-1 20 -455 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 473 Comment
  UCD169739  Clematis lasiantha R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49689 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  UCR119303  Clematis lasiantha R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 455 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
  RSA386282  Clematis pauciflora M. B. Dunkle 1936-3-14 4701 Orange San Juan Canyon. Comment
  RSA303537  Cleome isomeris J. R. Shevock 1970-9-17 505 Orange Bolsa Chica Beach heights. 8 Comment
  RSA66687  Cleome isomeris F. W. Peirson 1924-2-10 4530 Orange southward from Corona del Mar. Comment
  LA208484  Cneoridium dumosum B. Lower; 1954-4-3 Orange Dry hill behind Laguna Comment
  RSA699998  Collinsia bicolor L. C. Hull 1934-4-15 s.n. Orange Laguna Hills Comment
  RSA34587  Collinsia heterophylla N. C. Cooper 1944-6-4 1361 Orange San Juan Canyon, lower camp ground. 457 Comment
  RSA542503  Collinsia heterophylla Bernard Jaroslow 1989-5-29 B- 27 Orange Santiago Canyon: Along the Morrow Trail out of Live Oak Canyon, below truck trail. Comment
  SD134460  Comarostaphylis diversifolia subsp. diversifolia Craig Reiser 1992-6-12 Orange Laguna Niguel, west-facing slope, NE corner of intersection of Crown Valley Parkway and Pacific Island Drive Comment
  UCD169757  Comarostaphylis diversifolia subsp. diversifolia R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49607 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. 290 Comment
  RSA539346  Commelina coelestis Fred M. Roberts 1987-10-14 3747 Orange Laguna Beach: Lower Blue Bird Canyon at end of Catalina Street. 21 Comment
  IRVC29723  Conium maculatum Mark A. Elvin, Barry S. Nerhus 2006-11-4 5254 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  SD127479  Conium maculatum Reid Moran, Gordon Marsh and Jack Reveal 1977-6-13 24237 Orange Willow Canyon, tributary of Laguna Canyon 124 Comment
  RSA0099309  Convolvulus althaeoides E. L. Paddock 1941-6-5 116 Orange Along Santa Fe RR, 150 ft W of Placentia Ave. Comment
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Jan 4 2020
  IRVC9147  Convolvulus arvensis B. Gittins 1963-4-30 204 Orange 1617 Sandalwood St. Costa Mesa Comment
  RSA627781  Convolvulus arvensis Scott D. White 1998-3-24 6235 Orange University of California, Irvine Campus: Site of proposed Research Park. Southwest of main campus circle, ca. halfway between Beerkeley Avenue and new freeway (Bonita Canyon). 36 Comment
  IRVC29834  Convolvulus simulans Tom McCrainie, Mark A. Elvin 2006-9-23 8 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  RSA0013948  Convolvulus simulans Fred M. Roberts 2008-4-24 6927 Orange Lomas de Santiago: Loma Ridge, lower Hicks Cyn. 350 meters east of Haul Rd., 1.9 km E Rattlesnake Cyn. Reservoir dam and 2.1 km W Bee Peak. Irvine Ranch Conservancy. 172 Comment
  RSA687516  Convolvulus simulans Fred M. Roberts, D. E. Bramlet 2003-4-10 5652 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, ridge between Cristianitos Canyon, 1.17 km SW Gato Gate and 1.02 km W Cristianitos Road. 175 Comment
  UCR158170  Convolvulus simulans Adrian Wolf, David Charlton 1998-5-4 200 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
  UCR220029  Conyza bonariensis 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
  POM4592  Conyza coulteri I. M. Johnston 1918-9-3 2148 Orange Laguna Canyon (at the lakes) 107 Comment
  RSA725944  Conyza floribunda R. E. Riefner 2006-10-8 06 -481 Orange South Coast: Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Rd. 51 Comment
  RSA356995  Cordylanthus maritimus subsp. maritimus Robert F. Thorne 1975-4-6 45586 Orange Head of Newport Bay. Comment
  RSA0084752  Cordylanthus rigidus A. C. Sanders, Joshua M. Brokaw 2008-5-28 35428 Orange Peninsular Range; Santa Ana Mtns.: upper Weir Canyon, along old dirt road west of Eastern Transportation Corridor, 1.65 mi. east of south end of Walnut Cyn Reservoir (Black Star Canyon 7.5' Q.) 372 Comment
  UCR193827  Cordylanthus rigidus A. C. Sanders, Fred M. Roberts 2008-7-16 35852 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  SEINET7067532  Cordylanthus rigidus subsp. rigidus A. G. Vestal 1947-6-12 s.n. Orange Grade above road-end at Silverado Canyon. Coordinate datum: NAD27. UTM Zone 11, 445596mE, 3734267mN. Comment
  RSA412301  Cordylanthus rigidus subsp. setiger M. B. Dunkle 1934-6-18 3992 Orange San Juan Canyon, Southern Coastal. 305 Comment
  CHSC114117  Cordylanthus rigidus subsp. setiger Sandy Leatherman 2011-7-2 2011 -20 Orange Peninsular Ranges; Chino-Puente Hills region: 50 meters west of Carbon Canyon Road and Lions Canyon Road in the City of Brea; UTM Zone 11S; 427559.41E 3756239.97N. 274 Comment
  POM201779  Corethrogyne filaginifolia L. M. Booth 1932-7-29 1332 Orange Newport Bay Comment
  RSA752895  Corethrogyne filaginifolia A. C. Sanders, Fred M. Roberts 2008-8-7 35970 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  UC537259  Corethrogyne filaginifolia L. M. Booth 1933-8-26 1385 Orange Newport Lagoon Comment
  PASA1814  Corethrogyne filaginifolia Frank W. Peirson 1924-8-29 Orange 2 miles from Balboa on toad inland along creek Comment
  UCR107844  Coronopus didymus Scott D. White 1998-3-24 6227 Orange Irvine. Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Av. and new freeway (Bonita Cyn) 37 Comment
  UCD59799  Cortaderia selloana A. C. Sanders 1990-10-6 10196 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2 km inland of Hwy. 1. 1 Comment
  RSA731928  Cotula australis Fred M. Roberts, Sandra Leatherman 2007-11-27 6682 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  UC1292312  Cotula australis C. L. Hitchcock and C. V. Muhlick 1964-3-17 23067 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  UCR142748  Cotula coronopifolia C. B. Wolf 1932-3-8 2692 Orange South Coast, Sunset Beach, [Bolsa Chica] at southern city limits 2 Comment
  RSA0054856  Cotula coronopifolia Grace Adams 1938-5-28 s.n. Orange Santiago Creek. Comment
  UC718324  Cotyledon orbiculata var. oblonga Carl B. Wolf 1936-7-8 8099 Orange western end of Newport Bay, Coast Highway Newport Bay; , Coast Highway 9 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
  UCR103791  Crassula connata Scott D. White 1997-2-19 4700 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  CDA25356  Crassula connata Andreas 1944-4-14 Orange Santa Ana. 0 Comment
  UCSB47623  Crassula connata Roberts, Fred 1980-4-3 Orange Hills; 1.0 km. NE Dana Hills High School, Dana Point 75 Comment
  POM6361  Cressa truxillensis P. A. Munz 1919-5-4 2687 Orange Laguna 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
  UCR208860  Cressa truxillensis var. vallicola L. C. Wheeler 1932-6-25 0864 Orange Coastal Plains and Basins; Los Angeles Basin region, Newport Bay 0 Comment
  JEPS31071  Crocanthemum scoparium var. vulgare J. C. Aven 1931-6-30 Orange hill near Modjeska Home (10 mi e of El Toro) Comment
  UCR130343  Crotalaria capensis A. C. Sanders, Mark A. Elvin 2003-10-12 27318 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  LA204938  Croton californicus J. A. Ewan; 1932-7-28 7704 Orange Corona del Mar Comment
  RSA697577  Croton californicus Kenneth Beard s.n. Orange Bank of S. A. River. 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
  UCR193321  Cryptantha clevelandii A. C. Sanders, T. B. Salvato 2008-5-13 35368 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
  POM146229  Cryptantha clevelandii var. florosa F. M. Reed 1926-4-14 5301 Orange Bluffs along sea at Arch Beach. 46 Comment
  POM3964  Cryptantha clevelandii var. florosa I. M. Johnston 1918-5-4 2214 Orange Hills back of Laguna Beach. 152 Comment
  IRVC22194  Cryptantha intermedia Fred M. Roberts 1985-4-8 1632 Orange San Joaquin Hills, Turtle Rock area, hill 1.1km SE French Hill, Irvine 196 Comment
  RSA678721  Cryptantha intermedia Fred M. Roberts, Robert Allen, Carol Roberts 2003-5-11 s.n. Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  SDSU5475  Cryptantha intermedia A. M. White 1974-6-1 74 -671 Orange Ca. 20 m. east of Santa Ana; north of Silverado Canyon. 1006 Comment
  UCR190966  Cryptantha intermedia A. C. Sanders, Fred M. Roberts 2008-4-22 35057 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  UCR191344  Cryptantha intermedia A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34621 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
  UCR211967  Cryptantha intermedia Dick Newell, Don Millar 2010-2-23 002 Orange South Coast, Serrano Ridge, 3 mi west of Laguna Hills, 0.67 mi west of Languna Canyon Road, east of Shady Canyon 244 Comment
  UCR223434  Cryptantha intermedia Dick Newell, Don Millar 2011-2-8 052 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
  RSA734345  Cryptantha microstachys A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34630 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  UCSB52878  Cryptantha microstachys Roberts, Fred; Marsh, G. 1983-3-30 Orange UC Irvine Ecological Preserve, 0.6 km. SW UCI campus center 43 Comment
  UCR191005  Cryptantha muricata A. C. Sanders, Fred M. Roberts 2008-4-22 35024 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  HSC7010  Cucurbita foetidissima J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  JEPS42641  Cucurbita foetidissima L. M. Booth 1933-10-18 Orange Newport Comment
  JEPS46507  Cucurbita foetidissima L. M. Booth 1933-10-18 Orange Newport Comment
  RSA732269  Cucurbita foetidissima A. C. Sanders 2008-4-29 35141 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
  RSA352379  Cupressus forbesii C. B. Wolf 1935-1-2 6278 Orange Slopes of Sierra Peak, west of Claymine Canyon, along road to Peak. 670 Comment
  RSA648649  Cupressus forbesii Richard E. Riefner, Adrian Wolf 2000-6-1 20 -451 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 518 Comment
  UC1281345  Cupressus forbesii H. E. McMinn 1935-6-22 3926 Orange at head Clay Mine Canyon (n end of Santa Ana Mts.); Santa Ana Mts., Clay Mine Canyon Comment
  UCR113449  Cupressus forbesii R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 451 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 518 Comment
  UCR15234  Cupressus forbesii E. W. Lathrop 1976-11-17 7406 Orange Santa Ana Mtns., 4 mi west of Corona in Gypsum Canyon on the N slope of Sierra Peak. 610 Comment
  NY16673  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6278 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  NY16674  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6278 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA570  Cuscuta californica J. T. Howell 1927-6-3 24 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR16113  Cuscuta californica Dave Cerf 1971-4-17 s.n. Orange Orange Park Acres, 0.25 mi. north of Twin Lakes 396 Comment
  RSA542644  Cuscuta californica Fred M. Roberts, Kathy Keane 1988-5-25 3980 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Marker. 85 Comment
  POM201678  Cuscuta ceanothi L. M. Booth 826 Orange Santa Ana Canyon. Comment
  JEPS47118  Cuscuta salina L. M. Booth Oct 1933 Orange Newport Comment
  UC1595748  Cuscuta subinclusa G. D. Price Aug 1967 41893 Orange Trabuco Canyon Santa Ana Mts. Comment
  UCD169765  Cuscuta subinclusa R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49627 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station. 214 Comment
  UCR243149  Cuscuta subinclusa R. Keith Glenn 1973-8-27 s.n. Orange 1 mile north of Barranca Rd. off Sand Canyon Rd. 61 Comment
  UCR66997  Cycloloma atriplicifolium A. C. Sanders 1990-10-6 10203 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  RSA65888  Cycloloma atriplicifolium F. W. Peirson 1924-8-29 5061 Orange Santa Ana River, bridge near Santa Ana. Comment
  RSA716731  Cylindropuntia prolifera Fred M. Roberts, D. E. Bramlet 2004-11-5 6129 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Cyn., 0.79 km N Sycamore Gate and 0.18 km W Cristianitos Road. 146 Comment
  UCR109772  Cynara cardunculus R. D. Goeden, Don W. Ricker 1965-6-15 s.n. Orange Canada de Los Alisos, El Toro 122 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
  UCR266423  Cyperus difformis D. E. Bramlet 2009-11-20 4422 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  RSA21058  Cyperus eragrostis Ramon Valverde 1938-8-4 9446 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA6041  Cyperus eragrostis Carl B. Wolf 1932-6-13 3721 Orange Fullerton, Rose Drive 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
  RSA697521  Cyperus esculentus Minor Warne 1934-5-13 s.n. Orange Talbert Drainage. Comment
  RSA725528  Cyperus esculentus Fred M. Roberts 2007-9-11 6573 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  JEPS64086  Cyperus niger L. M. Booth 1932-7-19 1287 Orange Bolsas Creek Comment
  CAS-BOT-BC113820  Cyperus niger var. capitatus John Thomas Howell 1927-7-19 2800 Orange Santa Ana River Bottom, Santa Ana Canyon. 152 Comment
  RSA450864  Cyperus niger var. capitatus Gordon Marsh, Karlin G. Marsh 1977-11-21 s.n. Orange Santa Ana Mountains: San Juan Hot Springs. Comment
  RSA710407  Cyperus odoratus Fred M. Roberts 2005-10-3 6295 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
  UCR240195  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-16 12- 5 Orange South Coast, city of Newport Beach, Corona Del Mar, beach area west of Morning Canyon Road 1 Comment
  RSA700549  Dalea mollissima Mary Edmunds 1932-3-29 s.n. Orange Oasis Comment
  CDA23138  Datura stramonium Mark A. Elvin, D. G. Kelch 2006-12-9 5321 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  RSA33529  Datura wrightii N. C. Cooper 1942-11-9 886 Orange Balboa. Comment
  RSA695  Datura wrightii J. T. Howell 1927-7-5 264 Orange Near ranch Lowers, Rancho Santa Ana. Comment
  RSA748259  Datura wrightii A. C. Sanders, Fred M. Roberts 2008-6-17 35520 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR154345  Daucus pusillus Mark A. Elvin 2004-5-2 3409 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR192465  Daucus pusillus A. C. Sanders, Fred M. Roberts 2008-3-25 34533 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CAS-BOT-BC299327  Deinandra fasciculata David D. Keck 1932-9-29 1898 Orange Ca. 5 mi. S. of Santa Ana on road to Newport Beach Comment
  HSC24274  Deinandra fasciculata James Henrickson 1970-7-24 5001 Orange 3 mi. NW of Huntington Beach near sandy 'Rabbit' Island in Bolsa Chica Salt Marsh near Inner Bolsa Bay 1 Comment
  JEPS24424  Deinandra fasciculata Peter M. Ray 1949-5-22 1410 Orange s of San Clemente; San Clemente State Park 15 Comment
  UC303962  Deinandra fasciculata D. L. Crawford 1915-9-1 504 Orange Huntington Beach Comment
  SBBG80998  Deinandra fasciculata G. Sampson 1985-4-23 85 -362 Orange dry ridge W end of Telegraph Cyn Comment
  RSA0044617  Deinandra paniculata Robert E. Riefner Jr. 2008-5-19 08 -100 Orange Ladera Ranch, Cecil Pasture at Jerome Rd. Along Bluff Top Trail. 157 Comment
  UCR251742  Deinandra paniculata R. E. Riefner Jr. 2014-6-3 14- 143 Orange City of Laguna Beach, Moulton Meadows, NE 0.1 mi. from Del Mar Ave. and Balboa Ave. along Mentally Sensitive Trail 266 Comment
  UCR254221  Deinandra paniculata R. E. Riefner Jr. 2008-5-19 08- 100 Orange Ladera Ranch, Cecil Pasture at Jerome Road 157 Comment
  RSA5931  Delphinium cardinale Carl B. Wolf 1932-7-2 s.n. Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  UCR193343  Delphinium parryi A. C. Sanders 2008-5-28 35432 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  RSA594894  Delphinium patens subsp. hepaticoideum Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4907 Orange San Juan Canyon, south side of Calif. Route 74, 1.2 km SW Lower San Juan Picnic Ground. 390 Comment
  RSA5336  Dendromecon rigida subsp. rigida B. D. Stark 1933-1-4 4488 Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  RSA5408  Dendromecon rigida subsp. rigida Carl B. Wolf 1932-12-19 4442 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 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
  UCR261716  Descurainia pinnata Dick Newell, Judy Booth, Don Millar 2015-2-18 389 Orange South Coast, Newport Beach, New Delhi Channel near end of University Drive 4 Comment
  UCR267190  Descurainia pinnata subsp. halictorum Fred M. Roberts 2010-3-12 7183 Orange Southeast Coast, DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c. 150 meters SE Interpretive Center 50 Comment
  UCR190992  Dichelostemma capitatum A. C. Sanders, Fred M. Roberts 2008-4-22 35008 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
  UCSB52467  Dichelostemma capitatum Roberts, Fred 1983-2-10 Orange Dana Point: hills, 0.7km NE Dana Hills High School 92 Comment
  HSC22053  Dichelostemma capitatum subsp. capitatum S. M. Clapp 1966-4-7 21 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  RSA33586  Dichelostemma capitatum subsp. capitatum N. C. Cooper 1944-6-4 1363 Orange Elsinore Mountain. 1067 Comment
  RSA70159  Dichelostemma capitatum subsp. capitatum F. W. Peirson 1924-5-31 4672 Orange 5 miles southeast of Laguna Beach. Comment
  RSA208914  Dichelostemma capitatum subsp. capitatum Lee W. Lenz 1965-4-6 24585 a Orange Bluff above ocean, Dana Point. 30 Comment
  SEINET6879160  Dichelostemma congestum Wanda P. Vestal, A. G. Vestal 1955-3-24 s.n. Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  UCR222884  Dichondra occidentalis T. B. Salvato 2010-10-27 5122 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
  RSA562808  Digitalis purpurea Steve D. Boyd, Tim S. Ross 1992-5-20 7480 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
  RSA683844  Digitaria sanguinalis Scott D. White, Matt Carlton 2003-11-20 9872 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (San Juan Capistrano). 37 Comment
  RSA788966  Digitaria sanguinalis R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49579 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  SEINET3412116 Image available Diplachne fusca var. uninervia Pat Sawyer 34 Orange from Back Bay area at Newport Beach Comment
  SJSU1768  Diplacus aurantiacus G. B. Youngberg 1956-3-27 185 Orange Irvine Park c. 8 mi E of Orange 259 Comment
  CAS-BOT-BC152263  Diplacus clevelandii E. K. Balls 1958-6-27 23279 Orange Road to Santiago Peak from Silverado Canyon, 3.8 mi. from gate. 975 Comment
  UCR91554  Diplotaxis muralis A. C. Sanders 1990-10-6 10186 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  UCD64386  Distichlis spicata var. stolonifera C. B. Wolf Date Unknown 3815 Orange Orange Co. Comment
  UCSB14911  Dodecatheon clevelandii Breedlove, Dennis 1962-3-9 Orange 4.4 miles east of San Juan Capistrano on State 74 112 Comment
  CAS-BOT-BC41654  Draba cuneifolia var. cuneifolia Carl B. Wolf 1932-2-17 2661 Orange Rancho Santa Ana Botanic Garden, just west Adensotoma sparsifolium bed. 182 Comment
  IRVC122  Dryopteris arguta A. S. Boughey 121 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  RSA754061  Dryopteris arguta A. C. Sanders, Fred M. Roberts 2008-7-16 35862 Orange Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  CAS-BOT-BC70836  Dryopteris arguta Carl B. Wolf; E. R. Johnson 1939-3-16 9492 Orange Santa Ana Mts., north side of Pleasant's Peak 1219 Comment
  IRVC19376  Dryopteris arguta R. L. Allen 1977-2-13 s.n. Orange Santa Ana Mountains: [San Juan Canyon], Ortega Hwy, roadside 111; next to trail. Comment
  RSA759111  Dryopteris arguta Robert Allen, Reginald Durant 2008-9-28 s.n. Orange Laurel Spring, just below Harding Truck Trail., Survey Waypoint #85. Comment
  RSA423460  Dudleya F. R. Fosberg 1931-8-19 7221 Orange Aliso Creek, mouth Comment
  JEPS50033  Dudleya blochmaniae subsp. blochmaniae T. W. Minthorn 1924-5-30 Orange Pt. San Juan (Dana Point) Comment
  UCR159829  Dudleya cymosa Valerie Soza, LeRoy Gross 1999-6-7 473 Orange Santa Ana Mountains, West side of Modjeska Peak, along Main Divide Road 1448 Comment
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Jun 15 2013
  RSA6895  Dudleya edulis B. D. Stark 1933-1-21 772 Orange San Clemente. 15 Comment
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Oct 23 2014
  SD207014  Dudleya edulis Reid Moran 1949-7-9 3258 Orange Aliso Canyon Comment
  RSA0002519  Dudleya edulis Reid V. Moran 1948-6-23 3097 Orange North-facing cliff near mouth of Aliso Canyn, south of Laguna Beach 8 Comment
  POM1571  Dudleya lanceolata D. L. Crawford 1916-5-10 s.n. Orange Laguna Mtns. 305 Comment
  POM265679  Dudleya lanceolata J. C. Roos 1937-5-21 2338 Orange Lemon Heights, near Santa Ana Comment
  RSA83424  Dudleya lanceolata F. W. Peirson 1924-5-31 4673 Orange 5 miles southeast of Laguna Beach. Comment
  UCR59229  Dudleya lanceolata Robert McKernan 1989-5-18 s.n. Orange Santa Ana Mtns Foothills, Serrano Creek, 4 km north of Trabuco Rd. at the end of Lake Forest Rd. 6 km east of El Toro Military Base 274 Comment
  CAS-BOT-BC411407  Dudleya lanceolata K. Nakai 1979-5-12 507 Orange Treasure Cove, Newport Bluffs 10 Comment
  RSA397795  Dudleya lanceolata Anstruther Davidson s.n. Orange Newport Comment
  UC933285  Dudleya lanceolata Reid Moran 1950-5-12 3386 Orange Newport Bluffs Comment
  RSA0015002  Dudleya multicaulis Fred M. Roberts 2008-5-14 6971 Orange Lomas de Santiago: Loma Ridge, summit of Bee Peak and 3.9 km E Rattlesnake Canyon Reservoir dam. Irvine Ranch Conservancy. 533 Comment
  RSA542536  Dudleya multicaulis Fred M. Roberts, Kathy Keane 1988-5-25 4000 Orange Rancho Mission Viejo: Lower Canada Gobernadora, ca. 2.4 kn SW Cliff Survey Marker. 110 Comment
  RSA594811  Dudleya multicaulis Fred M. Roberts, Edna Rey, Kay Stockwell 1993-5-6 4880 Orange El Modena: Lomita Ave, ca. 0.4 km by road E Santiago Blvd., 0.4 km W Bauer Survey Marker. 122 Comment
  UC536908  Dudleya multicaulis Lawrence M. Booth 1932-5-18 1054 Orange Newport Bay Comment
  UC792938  Dudleya multicaulis Reid Moran 1949-7-2 3285 Orange 0.4 mi above El Toro road junction with Irvine road (s of El Toro road, Laguna Canyon); Laguna Canyon 91 Comment
  UCR177286  Dudleya multicaulis Scott D. White, Amanda Duchardt 2003-5-1 9148 Orange Santa Ana Mountains, Slopes above the west side of Canada Gobernadora and adjacent small canyon to the west 122 Comment
  UCR203895  Dudleya multicaulis R. E. Riefner Jr. 2008-3-5 08- 30 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, lower Lakeview SCE Road 274 Comment
  UCR222628  Dudleya pulverulenta T. B. Salvato 2010-10-27 5103 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  UCSB50638  Dudleya pulverulenta Roberts, Fred 1982-7-8 Orange Niguel Hills; Niguel Hill, above Pacific Island Road, 1.4 km. ESE Aliso Peak; 2.6 km. SSW Alicia Fire Station 205 Comment
  CAS-BOT-BC109741  Dudleya stolonifera R. V. Moran 1949-7-2 3286 Orange Laguna Canyon. 1.7 mile below Toro Road Junction, 1.5 mile above canyon mouth. 243 Comment
  CAS-BOT-BC109742  Dudleya stolonifera R. V. Moran 1949-7-2 3287 Orange Near mouth of Aliso Canyon, south of Laguna Beach. Comment
  CAS-BOT-BC109745  Dudleya stolonifera K. Nakai 1978-4-19 359 Orange Aliso Canyon, ca. 300 m east of California Highway 1. 10 Comment
  POM301408  Dudleya stolonifera Reid V. Moran 1949-7-2 3286 Orange Laguna Canyon, 1.7 miles below Toro Road jct. 1.5 miles above canyon mouth 244 Comment
  POM277740  Dudleya viscida H. G. Rush 1948-5-14 102 Orange San Juan Canyon, 1/4 mile below San Juan Hot Springs 305 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
  RSA773553  Echinochloa colona Fred M. Roberts 2008-6-3 7031 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.6 km NE Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 225 Comment
  CAS-BOT-BC197174  Echinochloa crus-galli Ira L. Wiggins 1965-9-26 20254 Orange In Carbon Canyon about 3.5 mi. above its mouth Comment
  CAS-BOT-BC197175  Echinochloa crus-galli Carl B. Wolf 1932-6-13 3720 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  UC537283  Echinochloa crus-galli Lawrence M. Booth 1932-7-25 1314 Orange Santa Ana River Channel 2 mi from Ocean; Santa Ana River Channel Comment
  UC729935  Echinochloa crus-galli Carl B. Wolf 1932-6-13 3720 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  UCR2340  Echinochloa crus-galli F. M. Reed 1920-8-27 4498 Orange Coastal Plain, roadside north of Orange 61 Comment
  RSA184075  Echinochloa crus-galli I. L. Wiggins 1965-10-5 20325 Orange [Near Fullerton.], [33 deg 52'02N, 117 deg 52'30W Comment
  RSA184153  Echinochloa crus-galli I. L. Wiggins 1965-9-26 20262 Orange Fullerton. Comment
  RSA539370  Echinodorus berteroi David E. Bramlet 1990-10-17 2063 -2 Orange Newport Beach: Delhi Channel at the intersection of Irvine Ave. and Mesa Drive just west of Newport Beach Golf Course. 6 Comment
  UCR66983  Echinodorus berteroi D. E. Bramlet 1990-10-17 2063 Orange Delhi Channel at the intersection of Irvine Ave. & Mesa Drive, just west of Newport Beach Golf Course 6 Comment
  RSA708812  Elatine brachysperma Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6165 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  RSA697522  Eleocharis acicularis Elisabeth Norland 1929-4-11 s.n. Orange Cypress. Comment
  RSA21065  Eleocharis montevidensis Ramon Valverde 1938-8-4 9439 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA717154  Eleocharis montevidensis Fred M. Roberts, Chris M. Barnhill 2005-9-27 6283 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4 km E Mission San Juan Capistrano. 27 Comment
  RSA752647  Eleocharis montevidensis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33003 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
  RSA588792  Eleocharis montevidensis var. montevidensis Fred M. Roberts, D. Bontrager 1990-4-18 4569 Orange Rancho Mission Viejo: Canada Chiquita, east side of canyon near mouth, 2.7 kilometers SSE Median Rancho Survey Marker; UTM Z11 37 10 000N, 4 43 800m E 79 Comment
  RSA83  Eleocharis palustris J. T. Howell 1927-6-30 238 Orange Bryant Ranch near Long Beach. 15 Comment
  UCR174194  Eleocharis radicans A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33024 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  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
  UCR228755  Elymus condensatus Dick Newell, Don Millar 2011-5-24 162 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Haul Road 286 Comment
  CAS-BOT-BC234138  Elymus multisetus John Thomas Howell 1927-6-8 2453 Orange Southern Puente Hills in the Santa Ana Canyon 152 Comment
  RSA548858  Elymus multisetus Fred M. Roberts, Gordon Marsh 1986-6-6 2986 Orange Black Star Canyon, Black Star Canyon Rd., 2.7 km by road below summit; 3.6 km S Sierra Peak., UTM 3741900m N, 439600mE. 646 Comment
  CDA22471  Emex spinosa Ball 1933-4-21 Orange Lemon Grove. 0 Comment
  RSA552942  Emmenanthe penduliflora Fred M. Roberts, Carol A. Roberts 1989-4-20 4299 Orange Santa Ana Mtns.: upper Lion Canyon along San Juan Trail just south of Blue Jay Campground, 2.5km SE Los Pinos Peak. 980 Comment
  UCR192079  Emmenanthe penduliflora A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35280 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR209332  Emmenanthe penduliflora var. penduliflora Fred M. Roberts 2009-4-11 6889 Orange Lomas de Santiago, Loma Ridge, upper Dripping Springs Canyon, 0.9 km northeast of Bee Peak and 1.2 km west-northwest of Dripping Springs 448 Comment
  CAS-BOT-BC131229  Encelia californica John Thomas Howell 1927-6-1 2406 Orange Southern Puente Hills in the Santa Ana [Canon] Canyon 152 Comment
  HSC5474  Encelia californica J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  IRVC649  Encelia californica L. Stilgenbauer 1965-3-28 Orange Corona del Mar, MacArthur Blvd. Newport Beach Comment
  RSA732174  Encelia californica A. C. Sanders, Fred M. Roberts 2008-3-25 34544 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR99554  Encelia californica B. G. Pitzer 1996-4-30 2792 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 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
  SD236344  Epilobium canum A. C. Sanders, Fred M. Roberts 2008-9-18 36084 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  POM18136  Epilobium canum subsp. canum P. A. Munz 1923-9-7 7764 Orange Santa Ana Mountains, on trail from Trabuco Canyon to Santiago Peak. 1616 Comment
  UC284876  Epilobium canum subsp. canum P. A. Munz 1923-9-7 7764 Orange slopes from Trabuco Canyon to Santiago Peak; Santa Ana Mts. 1615 Comment
  RSA754075  Epipactis gigantea A. C. Sanders, Fred M. Roberts 2008-7-16 35844 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  UCSB47992  Epipactis gigantea 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
  SD245160  Equisetum arvense R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49566 Orange Santa Ana Mountains: San Joan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA790024  Equisetum hyemale var. affine R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49565 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  CAS-BOT-BC204633  Eragrostis mexicana subsp. virescens Ira L. Wiggins 1965-11-7 20358 Orange On west side of State College Blvd., near Troy High School, Fullerton Comment
  UC2042144  Eragrostis mexicana subsp. virescens R. F. Thorne with E. W. Lathrop, W. Wisura 1977-7-8 49567 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UC777943  Eragrostis mexicana subsp. virescens Frank W. Gould 1944-6-25 2362 Orange Garden Grove; Tournat Ranch Comment
  RSA184159  Eremocarpus setiger I. L. Wiggins 1965-10-24 20279 Orange Roadside along Skyline Drive near intersection with Raymond Street, Fullerton. Comment
  RSA436020  Eremocarpus setiger Christopher Davidson, G. Benny 1971-6-15 1553 Orange Carbon Canyon, 1 mile SW of Carbon Canyon mineral spring. Comment
  SEINET7909394  Eriastrum eremicum G. A. Wojciechowski 1967-1 Orange San Juan Capistrano 610 Comment
  RSA0122939  Eriastrum sapphirinum subsp. dasyanthum A. C. Sanders, Fred M. Roberts 2008-5-6 35222 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  RSA0121307  Eriastrum sapphirinum subsp. dasyanthum J. T. Howell 1927-6-1 9 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA0121319  Eriastrum sapphirinum subsp. dasyanthum Fred M. Roberts, Carol A. Roberts 1990-5-16 4628 Orange Santa Ana Mtns: Small canyon along SE side of Irvine Mesa, 3.5 km N Bolero Lookout 396 Comment
  RSA264442  Ericameria brachylepis C. W. Tilforth 1976-10-21 1227 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana. Comment
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Mar 18 2011
  CAS-BOT-BC286881  Ericameria ericoides John Thomas Howell 1927-9-24 3114 Orange Hills on n. side of Santa Ana Canon [Canyon] 213 Comment
  CAS-BOT-BC299500  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 2944 Orange Rancho Santa Ana, Santa Ana Canyon 207 Comment
  CAS-BOT-BC299502  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 1363 Orange North side of Santa Ana Canyon 207 Comment
  JEPS30707  Ericameria palmeri var. pachylepis Peter H. Raven 1961-10-15 16854 Orange just w of State Highway 55 (Santa Ana Canyon Road); Peralta Hills 137 Comment
  OBI45880  Ericameria palmeri var. pachylepis B. Pitzer, D. Hawks 1986-10-21 345 Orange Lomas de Santiago, ca. 10 mi E of Santa Ana, in hills N and E of south Coast Gun Club on Jeffrey Rd in Hicks Canyon 183 Comment
  RSA2886  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA292464  Ericameria palmeri var. pachylepis James Henrickson 1972-10-21 8076 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. Irrigated grassland eventually to be used for large Newport Beach Business Center. 46 Comment
  RSA588848  Ericameria palmeri var. pachylepis Fred M. Roberts 1989-11-7 4455 Orange Rancho Mission Viejo: trw Lease holding, ridge N of Talega Canyon, 5.4km NE Clemente Survey Marker. 166 Comment
  RSA843  Ericameria palmeri var. pachylepis J. T. Howell 1927-9-24 748 Orange Santa Ana Botany Garden 152 Comment
  UCR45136  Ericameria palmeri var. pachylepis B. G. Pitzer, L. F. LaPre 1986-10-20 s.n. Orange Santa Ana Mtns, Summit of Hicks Canyon on a private road (continuation of Jeffrey Road), c. 2.4 mi. above the gun club 274 Comment
  CAS-BOT-BC293091  Ericameria pinifolia John Thomas Howell 1927-10-23 3172 Orange On n. side of Santa Ana Canon [Canyon] 152 Comment
  SD127546  Ericameria pinifolia Reid Moran, Gordon Marsh and Jack Reveal 1977-6-13 24231 Orange Willow Canyon, tributary of Laguna Canyon 124 Comment
  UCR229209  Ericameria pinifolia Dick Newell, Peter Wetzel 2011-6-28 197 Orange South Coast, San Joaquin Hills, Willow Canyon, Laguna Coastal Wilderness Park 89 Comment
  RSA696782  Erigeron R. H. McArthur 1934-5-19 s.n. Orange Trabuco Canyon. Comment
  UCR195001  Erigeron canadensis A. C. Sanders, Fred M. Roberts 2008-8-7 36008 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  IRVC14814  Erigeron foliosus var. foliosus A. S. Boughey 1968-7-9 384396 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA0014994  Erigeron foliosus var. foliosus Fred M. Roberts 2008-5-14 6964 Orange Lomas de Santiago: Loma Ridge, upper Bee Flat Canyon below Loma Ridge Rd., 1.3 km N Bee Peak and 5.4 km NW Bolero Lookout, Irvine Ranch Conservancy. 381 Comment
  POM6358  Erigeron foliosus var. stenophyllus P. A. Munz 1919-5-3 2656 Orange Santa Ana River Canyon. Comment
  RSA68305  Erigeron foliosus var. stenophyllus G. R. Campbell 1951-5-30 16097 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest 152 Comment
  SJSU8878  Eriodictyon crassifolium H. E. McMinn 1935-6-22 3929 Orange Ridge above Clay Mine Canyon, N end of Santa Ana Mts Comment
  UCD119238  Eriodictyon crassifolium K. M. Meyer; A. Townesmith and T. Scott 2007-3-10 1 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  UCR221894  Eriogonum elongatum Dick Newell, Don Millar 2010-10-12 45 Orange Peninsular Range; Santa Ana Mtns., Irvine Ranch, Lakeview Rd. above Irvine Lake and 0.8 mi. due west of State Spur Rd. 498 Comment
  CAS-BOT-BC249758  Eriogonum elongatum var. elongatum John Thomas Howell 1927-9-24 3107 Orange Hills on n. side of Santa Ana Canon [Canyon] 182 Comment
  POM2249  Eriogonum fasciculatum P. A. Munz 1918-5-5 2193 Orange Laguna. Comment
  POM2258  Eriogonum fasciculatum I. M. Johnston 1918-5-4 666 Orange Laguna Beach Comment
  POM293155  Eriogonum fasciculatum Lyman Benson 1946-5-13 12095 Orange Corona del Mar, Pacfic Ocean drainage area 15 Comment
  RSA737540  Eriogonum fasciculatum var. fasciculatum Fred M. Roberts 2008-3-12 6721 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UCR93938  Eriogonum fasciculatum var. foliolosum B. G. Pitzer 1996-4-30 2806 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  UCSB41761  Eriogonum fasciculatum var. foliolosum Walker, Richard 1966-5-15 Orange On south road embankment of Esperanza Ave. about 3 mi. east of Imperial Hwy. east of state landmark of Yorba Hacienda Site. 30 Comment
  UC536903  Eriogonum gracile L. M. Booth 1932-7-29 1331 Orange Newport Lagoon Comment
  RSA5353  Eriogonum parvifolium B. D. Stark 1932-12-9 4423 Orange Canyon 1 mile NW of Laguna Beach. 15 Comment
  UCR66988  Eriogonum parvifolium A. C. Sanders 1990-10-6 10179 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  POM49002  Eriogonum parvifolium var. parvifolium Grout, S. Grout 1904-08 s.n. Orange Laguna Beach Comment
  RSA424463  Eriogonum parvifolium var. parvifolium E. S. Spalding 1923-12-1 s.n. Orange Opposite San Juan Capistrano Comment
  RSA761926  Eriogonum saxatile Robt. Allen 2003-6-22 12371 Orange Modjeska Peak, southwestern arm, 0.6 air miles southwest of the summit. 1513 Comment
  RSA6141  Eriogonum thurberi E. R. Johnson 1933-6-22 4999 Orange Santa Ana River bottom. Rancho Santa Ana south of the Walnut Grove. 122 Comment
  RSA0054886  Eriogonum virgatum Keith E. Hoffmaster 1933-10-29 485 Orange Santa Ana mts. [Orange or Riverside]. Comment
  RSA7392  Eriogonum wrightii var. subscaposum Carl B. Wolf 1933-8-24 5404 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  POM357963  Eriophyllum confertiflorum M. B. Dunkle 1934-6-18 3998 Orange San Juan Canyon, Southern Coastal. 305 Comment
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Oct 3 2011
  UCR230227  Eriophyllum confertiflorum Dick Newell, Don Millar 2011-3-15 083 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash along Limestone Cyn. Rd. 252 Comment
  IRVC26745  Eriophyllum confertiflorum Mark A. Elvin 2004-6-18 3521 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC15150  Eriophyllum confertiflorum var. confertiflorum A. S. Boughey 1968-7-9 380403 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  IRVC707  Eriophyllum confertiflorum var. confertiflorum A. S. Boughey, P. Pembrook 1965-6-18 1018 Orange Los Trancos Canyon at bottom, ; chaparral. San Joaquin Hills Comment
  UC1294014  Eriophyllum confertiflorum var. confertiflorum E. K. Balls 1958-6-27 23286 Orange Santiago-Mojeska Saddle Santa Ana Mts., Santiago-Mojeska Saddle 1463 Comment
  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
  JEPS51726  Eschscholzia californica Alice King June, 1908 Orange Santa Ana Comment
  CAS-BOT-BC402924  Eschscholzia californica Agnes M. Bowman 1899-5-1 s.n. Orange Orange Comment
  SEINET3355606 Image available Eschscholzia californica Katharine Brandegee May 1908 Orange Clay Hills North of Ocean View Comment
  UC1608074  Eucalyptus amplifolia Dave Goodward 1987-4-16 5 Orange e. Tustin (1 mi. n.e. of Irvine Blvd./Myford Rd. intersection, Boy Scout Camp in Peters Canyon, Irvine Ranch, s. of tree 4 by 3 trees); Irvine Ranch, Peters Canyon, Boy Scout Camp 121 Comment
  RSA0010837  Eucalyptus camaldulensis T. B. Salvato, Billy Deane 2006-10-16 1928 Orange Irvine, San Diego Creek flood control channel, between Michelson Driveand the 405 Fwy. 9 Comment
  SD175834  Eucalyptus camaldulensis D. G. Kelch 2006-12-9 06 555 Orange Irvine. University Dr. along tidal creek, just east of I-73. Comment
  SD239814  Eucalyptus camaldulensis T. B. Salvato, Billy Deane 2006-10-16 1928 Orange South Coast: Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 Fwy (Tustin 7.5'Q) 10 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
  SEINET3012141 Image available Eucalyptus tereticornis Dave Goodward 1987-4-16 4 Orange Irvine Ranch, Boy Scout Camp in Peters Canyon E of Tustin, 1 mi NE of the Irvine Blvd/Myford Rd intersection. 120 Comment
  HSC13690  Eucrypta chrysanthemifolia J. W. Johnson 1961-4-2 Orange Newport Beach, along Upper Newport Bay. Comment
  POM4517  Eucrypta chrysanthemifolia P. A. Munz 1918-5-5 2174 Orange Laguna. Comment
  RSA609  Eucrypta chrysanthemifolia J. T. Howell 1927-6-21 180 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA732086  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-3-25 34531 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA794330  Eucrypta chrysanthemifolia Justin M. Wood 2010-3-31 1447 Orange [Santa Ana Canyon:] Santa Ana River floodplain, 0.25 miles north of Coal Canyon wildlife corrridor, west of Green River Golf Course on bluff south of the river. 122 Comment
  UCR281551  Eucrypta chrysanthemifolia Mitch Provance, Jeremiah George 2017-3-20 317- 125 Orange West Coyote Hills, Fullerton, west side of Gilbert Street on land previously occupied by oil fields. 138 Comment
  JEPS1720  Eucrypta chrysanthemifolia var. chrysanthemifolia L. M. Booth 1932-5-19 1063 Orange Newport Bay Comment
  UC537165  Eucrypta chrysanthemifolia var. chrysanthemifolia L. M. Booth 1932-5-19 1063 Orange Newport Beach Comment
  UCR86018  Euphorbia Scott D. White 1992-11-24 974 Orange Vicintiy of Brea, immediately north of Carbon Canyon Road & east of Placentia Ave. 1 mi (airline) S/SE of Tonner Canyon. 183 Comment
  RSA697585  Euphorbia albomarginata Kenneth Beard s.n. Orange Wasteland E. of Placentia. Comment
  RSA708445  Euphorbia albomarginata Mark Elvin 2004-5-2 3248 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  RSA2077  Euphorbia crenulata C. B. Wolf 1931-3-6 1852 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  CAS-BOT-BC413812  Euphorbia misera R. E. Riefner, Jr. 2013-11-15 13 -340 Orange City of Newport Beach, Inspiration Point, vicinity of Orchard St. and Ocean Blvd., NW of Little Corona Beach 7 Comment
  CLARK-A1528-2702  Euphorbia misera John C. Roos 1937-9-1 2548 Orange South Laguna Comment
  LA204855  Euphorbia misera B. R. Lower; 1954-4-26 sn Orange Dana Point Comment
  POM11888  Euphorbia misera P. A. Munz s.n. Orange Three Arches; Laguna Beach Comment
  RSA5354  Euphorbia misera B. D. Stark 1932-12-9 4425 Orange Dana Point Comment
  SD109124  Euphorbia misera Grady L. Webster 1966-12-11 7479 Orange Dana Point ocean bluffs on south-facing precipitous slopes at the tops of the bluffs 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
  UCR130485  Euphorbia misera R. E. Riefner Jr. 1999-8-21 99- 361 Orange South Coast, Laguna Beach, west of Pacific Coast Hwy., vicinity of Aliso Creek Park and south to West Drive 15 Comment
  UCR222625  Euphorbia misera T. B. Salvato 2010-10-27 5106 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  JEPS52403  Euphorbia peplus Lawrence M. Booth 1932-7-23 1303 Orange Corona del Mar Comment
  UCR103162  Euphorbia peplus Scott D. White 1997-3-28 4849 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  RSA697594  Euphorbia peplus James Snow 1929-3-28 s.n. Orange SantaAna Gardens Comment
  RSA734598  Euphorbia polycarpa A. C. Sanders, Fred M. Roberts 2008-5-6 35228 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  SD255146  Euphorbia polycarpa R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49784 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UCR221457  Euthamia occidentalis Dick Newell, Don Millar 2010-10-15 46 Orange South Coast, Back Bay Drive, city of Newport Beach, 0.7 mi. due west of Jamboree Rd. 3 Comment
  UCSB47619  Festuca myuros Roberts, Fred 1980-4-3 Orange Hills; 1.0km NE Dana Hills High School; Dana Point 75 Comment
  UCR266300  Festuca octoflora D. E. Bramlet 2008-3-26 4119 Orange Peninsular Range; Santa Ana Mountains, Bee Canyon, Bowerman landfill site. 202 m south of the Bee Canyon access road and 151 m west of the active landfill entrance 295 Comment
  UCR267214  Festuca octoflora var. octoflora Fred M. Roberts, Lee Ann Caranza & Eliza Maher 2009-4-7 7145 Orange South Coast Region, DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor 50 Comment
  SD127873  Festuca perennis Richard Marin 1971-5-11 M 71 83 Orange Corner of MacArthur Blvd. and University Drive, Irvine 0 Comment
  CAS-BOT-BC502071  Ficus microcarpa R. E. Riefner, Jr. 2013-7-11 13 -139 Orange City of Laguna Beach, Heisler Park, near Recreation Point, SW of Cliff Cr. and Myrtle St. 7 Comment
  CAS-BOT-BC502074  Ficus microcarpa R. E. Riefner, Jr. 2015-8-30 15 -376 Orange City of Anaheim, Pearson Park, near center of park, N of North Helena St. and West Cypress St 45 Comment
  CAS-BOT-BC502075  Ficus microcarpa R. E. Riefner, Jr. 2015-8-30 15 -379 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 T. 44 Comment
  RSA0088635  Ficus microcarpa R. E. Riefner Jr. 2014-6-21 14 -186 Orange City of Laguna Beach, N side of North Coast Highway near intersection with Cliff Dr. 10 Comment
  RSA0116293  Ficus microcarpa R. E. Riefner Jr. 2008-10-22 08 -312 Orange City of Laguna Beach, vicinity of West St and Pacific Coast Hwy. 8 Comment
  CAS-BOT-BC474736  Ficus rubiginosa R. E. Riefner, Jr. 2015-8-27 15 -358 Orange City of Newport Beach, Corona del Mar, on Marguerite Ave. at Fifth Ave. 42 Comment
  RSA542428  Filago californica Fred M. Roberts 1988-4-10 3908 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  RSA542432  Filago gallica Fred M. Roberts 1988-4-10 3909 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  HSC24263  Foeniculum vulgare James Henrickson 1970-7-25 5064 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March 0 Comment
  JEPS12254  Foeniculum vulgare Lawrence M. Booth 1932-8-5 1346 Orange Newport Beach Comment
  UCR222860  Foeniculum vulgare T. B. Salvato 2010-10-27 5132 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  LA207685  Frangula californica P. C. Everett; 1935-6-17 7137 Orange Santa Ana Mountains, Coldwater Canyon, 1/2 mi. above Glen Ivy Resort 457 Comment
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Jan 23 2015
  RSA0058059  Frangula californica subsp. californica Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49673 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  CAS-BOT-BC53337  Frangula californica subsp. cuspidata P. C. Everett 1935-6-18 7217 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
  RSA144566  Frankenia grandifolia Peter H. Raven 1958-6-5 13563 Orange Just north of Surfside Comment
  RSA30666  Frankenia grandifolia Louis C. Wheeler 1932-6-22 844 Orange Newport Bay. 1 Comment
  RSA391396  Frankenia grandifolia Albert J. Perkins 1908-5-30 s.n. Orange Laguna Mesa Comment
  RSA477  Frankenia grandifolia J. T. Howell 1927-6-30 248 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA697658  Frankenia grandifolia Minor Warne 1934-5-12 s.n. Orange Salt Marsh Newport Bay Comment
  IRVC22882  Frankenia salina Fred M. Roberts 1985-6-12 1891 Orange Laguna Niguel: Alicia Pkwy, 2.1km by road SW La Paz Rd., 1.0km W Sulphur Creek Reservoir. Southern Coastal 67 Comment
  JEPS30094  Frankenia salina L. M. Booth 1932-5-12 1037 Orange Newport Bay Comment
  LA103547  Frankenia salina Barry A. Prigge; 1983-12-17 5530 Orange Santa Ana Marsh and adjacent lowlands, southeasternmost part of oil field just N of Pacific Coast Highway between remnant Santa Ana River channel and dirt road 1 Comment
  SBBG47290  Frankenia salina R. N. Philbrick 1973-8-21 Orange just E of University of California, Irvine Comment
  SFV20019  Frankenia salina A. Dittmer, S. Dark 2004-10-3 73 Orange Bolsa Chica wetlands. North side of public parking lot off Highway 1. Comment
  RSA716728  Fraxinus Fred M. Roberts 2005-5-13 6186 Orange San Juan Capistrano; Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  POM13826  Fraxinus dipetala P. A. Munz 1922-4-28 5046 Orange Leach Canyon, Santa Ana Mountains 671 Comment
  UCR119309  Fraxinus dipetala R. E. Riefner Jr. 2000-2-19 20- 119 Orange Santa Ana Mountains, North Ranch Policy Plan Area. Fremont Canyon: north of Santiago Creek and immediately north of major stream fork 305 Comment
  UCR234154  Fraxinus dipetala Dick Newell, Judy Booth 2012-3-25 232 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.5 miles above Maple Springs entrance 615 Comment
  RSA21805  Fritillaria biflora Percy C. Everett 1937-6-5 8769 Orange Santa Ana Mountains, Baker Canyon, along West Ladd Forest Service Road. Comment
  UCR29049  Fumaria parviflora L. C. Erickson 1952-3-13 s.n. Orange Santa Ana Comment
  POM265787  Fumaria parviflora Vesta Newsom Griffith 1943-3-21 s.n. Orange Near Katella School, 2.5 miles southwest of Anaheim 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
  UCSB52911  Funastrum cynanchoides var. hartwegii Roberts, Fred; Pedderson, G. 1984-9-5 Orange Coto de Caza: Wagon Wheel Canyon, 6.4km NNE Median Survey Mark; 1.0km SE Bench Mark 657, 290 Comment
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Oct 28 2018
  UCR132569  Gaillardia X grandiflora Robert DeRuff 2001-9-19 s.n. Orange Southern Coast, Newport Back Bay, Shellmaker Island 1 Comment
  SEINET269587  Galium angustifolium O. F. Clarke 1994-6-17 Orange Laguna Canyon. Comment
  UCR76745  Galium angustifolium B. G. Pitzer, Stu Hemstreet 1992-5-27 1961 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
  UCSB45140  Galium angustifolium Woicik, Richard 1976-5-21 Orange Modjeska Canyon, near fire station Comment
  POM367704  Galium angustifolium subsp. angustifolium Albert J. Perkins 1912-6-8 s.n. Orange Foothills, north of Laguna Beach. Comment
  RSA598920  Galium angustifolium subsp. angustifolium Scott D. White 1997-3-28 4850 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  RSA67768  Galium angustifolium subsp. angustifolium G. R. Campbell 1951-5-30 16095 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest 152 Comment
  RSA789601  Galium angustifolium subsp. angustifolium Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49652 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] Comment
  RSA797667  Galium angustifolium subsp. angustifolium Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49771 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR242701  Galium angustifolium subsp. angustifolium Fred M. Roberts 2012-5-10 7579 Orange SAN JOAQUIN HILLS: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit 154 Comment
  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
  RSA704936  Galium nuttallii subsp. nuttallii Fred M. Roberts, David E. Bramlet 2004-4-21 6036 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Shady Canyon, tributary to Cristianitos Cyn., 0.65 km NW Sycamore Gate, 0.70 km W of Cristianitos Road. 148 Comment
  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
  RSA543971  Galium porrigens Steve D. Boyd, Orlando Mistretta 1991-5-9 6202 A Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  UCR241668  Garrya flavescens Dick Newell, Judy Booth 2013-5-19 329 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest; Maple Springs Road, 2 miles north of Modjeska Peak 855 Comment
  CAS-BOT-BC402198  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
  CLARK-A1528-974  Gasoul nodiflorum Patricia A. Andrews 1975-6-26 5928 Orange Capistrano Bay Beach 9 Comment
  RSA688864  Gastridium phleoides Fred M. Roberts, David E. Bramlet 2003-4-10 5643 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  UCR209347  Gaura coccinea Fred M. Roberts 2008-4-15 6898 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, east ridge, Conservation Trail, 1.6 km east-southeast of Rattlesnake Reservoir Dam and 2.6 km west-southwest of Bee Peak, Irvine Ranch Conservancy 183 Comment
  POM248098  Gaura odorata E. Johnson 1939-8-5 s.n. Orange Brea. Comment
  UC284868  Gayophytum diffusum subsp. parviflorum P. A. Munz 1923-9-7 7749 Orange Santiago Peak Santa Ana Mts. (near summit) 1645 Comment
  SEINET10728263  Gazania David B. Dunn 1971-8-13 Dunn 18118 Orange Cultivated plants vicinity of Laguna Beach. Comment
  UCR242702  Gazania linearis Fred M. Roberts 2012-5-10 7580 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
  RSA610227  Gazania linearis Fred M. Roberts Jr., Tony Bonkamp 1997-3-19 4988 Orange RANCHO MISSION VIEJO: Canada Gobernadora, east slope, 2km. SSE Median Rancho Survey Mark, 1.8 km N Calif. Rte.74. 104 Comment
  UCR191014  Geranium carolinianum A. C. Sanders, Fred M. Roberts 2008-4-22 35031 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  SD233857  Geranium incanum R. E. Jr. Riefner 2012-6-30 12 285 Orange City of Costa Mesa, Talbert Regional Park, general vicinity of Balboa Blvd. and 19th Street. 4 Comment
  RSA0035858  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-12-5 12 -588 Orange city of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road 9 Comment
  RSA791924  Geranium incanum var. multifidum R. E. Riefner Jr. 2007-4-28 7 -189 Orange City of Newport Beach, Newport Bay, North Star Beach, vicinity of Morning Star Ln. 2 Comment
  RSA797024  Geranium incanum var. multifidum R. E. Riefner Jr. 2007-4-28 7 -189 Orange City of Newport Beach, Newport Bay, North Star Beach, vicinity of Morning Star Ln. 2 Comment
  UCR219853  Gilia angelensis Fred M. Roberts 1999-4-26 5199 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, tributary to Santiago Canyon Wash on ridge between Limestone Cyn and the wash, 1.4 km SE Silverado School, 2.7 km north Bolero Lookout 358 Comment
  SEINET6969922  Gilia angelensis W. P. Vestal, A. G. Vestal 1955-3-24 3460 Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  RSA698339  Gilia capitata Anonymous 1932-5-1 s.n. Orange Field weed near Anaheim. Comment
  UCSB5079  Gilia capitata subsp. abrotanifolia Kamb, Peter 1948-6-19 Orange SE slope of Santiago Peak; Santa Ana Mts. 1219 Comment
  RSA289470  Gnaphalium beneolens R. C. Bacigalupi 1952-7-19 3852 Orange In dry ground of bank, N Fork of American River below Cape Horn Station on SP RR, 1/2mile above bridge on Colfax - Iowa Hill road, alt 1250ft. 381 Comment
  RSA91740  Gnaphalium beneolens F. W. Peirson 1923-9-7 4042 Orange Trail to Santiago Peak, Santa Ana Mts 991 Comment
  UCR102015  Gnaphalium californicum B. G. Pitzer 1997-3-25 3017 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR193463  Gnaphalium canescens subsp. microcephalum A. C. Sanders, T. B. Salvato 2008-5-13 35353 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
  POM201844  Gnaphalium chilense L. M. Booth 1932-7-19 1275 Orange Bolsas Marsh. Comment
  POM202609  Gnaphalium chilense L. M. Booth 1932-7-19 1275 Orange Bolsas Marsh. Comment
  POM18134  Gnaphalium microcephalum P. A. Munz 1923-9-7 7766 Orange Santa Ana Mts. From Holy Jim Canyon to Santiago Peak. 1067 Comment
  POM4622  Gnaphalium palustre P. A. Munz 1918-5-4 2209 Orange Laguna Canyon. Comment
  RSA734646  Gnaphalium palustre A. C. Sanders, T. B. Salvato 2008-5-13 35360 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  IRVC9357  Gnaphalium stramineum B. T. Gittins 1963-5-29 239 Orange Orange State College. Fullerton Comment
  RSA698230  Godetia bottae Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  IRVC26733  Grindelia Mark A. Elvin 2004-6-18 3522 Orange UCI Arboretum Southern Coastal 15 Comment
  UCR1483  Grindelia camporum B. L. Estes 1960-7-24 s.n. Orange San Clemente, NE corner of Avenida Santa Barbara and Ola Vista. 46 Comment
  UCR193363  Grindelia camporum A. C. Sanders 2008-5-28 35430 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCR37800  Grindelia camporum 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
  RSA5917  Grindelia camporum var. bracteosa C. B. Wolf 1932-7-2 3810 Orange Orange County, Valencia Ave, Olenda, opposite the Olinda Pilgrim Church 152 Comment
  CAS-BOT-BC305210  Grindelia hirsutula L. R. Abrams 1917-6-23 6566 Orange Balboa Comment
  CAS-BOT-BC305212  Grindelia hirsutula David D. Keck 1932-9-30 1899 Orange Ca. 5 mi. S. of Santa Ana, at R.R. right-of-way on road to Newport Beach Comment
  JEPS41904  Grindelia hirsutula L. M. Booth 1932-5-24 1092 Orange Newport Bay Comment
  UC897086  Grindelia hirsutula Julian A. Steyermark 1933-10-29 Orange San Clemente, Orange Co., on clay soil of coastal mesa. Comment
  RSA788243  Gutierrezia bracteata R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49629 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  CAS-BOT-BC140500  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
  RSA734692  Gutierrezia californica A. C. Sanders, Fred M. Roberts 2008-6-17 35503 Orange Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA735171  Gutierrezia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35288 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  SD72732  Gutierrezia californica F. R. Fosberg 1931-6-21 S 5084 Orange Lower Santiago Canyon. Comment
  UCR193059  Gutierrezia californica A. C. Sanders, Fred M. Roberts 2008-6-17 35503 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  UC75919  Gutierrezia californica E. A. Zumbro 1902-1-1 374 Orange Comment
  RSA554642  Gutierrezia sarothrae Scott D. White 1992-10-20 971 Orange Vicinity of city of Brea, Immediately N of Carbon Canyon Rd & E of Placentia Avenue +/-1mi (air) SSE of Tonner Canyon. 183 Comment
  RSA403563  Hainardia cylindrica L. C. Wheeler 1932-6-25 851 Orange 1/2 mile N Newport Bay. 15 Comment
  CLARK-A1528-1906  Haplopappus venetus John C. Roos 1949-10-1 4683 Orange Doheney Beach Comment
  UCR103284  Haplopappus venetus B. G. Pitzer, T. Tennant 1997-11-8 3377 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. 30 Comment
  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
  RSA0066593  Harpagonella palmeri D. E. Bramlet 2000-4-21 2988 Orange Exposed terraces west of Blind Cyn. and North of Irvine Park. The site is 1.5 km west of Blind Canyon and 76 m north of Irvine Park. This locality is 122 m southwest of the MWD access road. 207 Comment
  RSA0066595  Harpagonella palmeri D. E. Bramlet 2000-4-17 2982 Orange West of Blind Cyn. and North of Irvine Park. The site is 2 km west of Blind Canyon and 305m north of Irvine Park. This locality is 183 m southwest of the MWD access road. 220 Comment
  LA203734  Hazardia squarrosa var. grindelioides W. Pequegnat; 1937-8-31 sn Orange Santa Ana Mountains, Indian Canyon, (Seen also in branch of Trabuco Canyon about 3000 ft.) 365 Comment
  RSA232067  Hazardia squarrosa var. grindelioides C. W. Tilforth 1972-8-20 624 Orange Along County Rd. S19, between Cooks corner and O'Neil Park Comment
  UCSB52425  Hazardia squarrosa var. grindelioides Roberts, Fred 1982-9-15 Orange Rancho Mission Viejo: 6.4km ENE San Juan Capistrano by road on Rte. 74; 0.9km NNE Viejo Peak 115 Comment
  RSA302213  Hedera helix J. R. Shevock 1972-9-17 2281 Orange Pyles Boys Camp, Huntington Beach. 15 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
  RSA39337  Hedypnois cretica E. L. Paddock 1943-5-29 12743 Orange S of Devdar, 1/4 mile E of Carolina Ave extension, Brea. Comment
  UC537124  Helenium puberulum Lawrence M. Booth 1932-7-19 1285 Orange Bolsas Marsh Comment
  UCR103708  Helenium puberulum B. G. Pitzer, T. Tennant 1997-11-8 3363 Orange San Joaquin Hills, Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 85 Comment
  IRVC21748  Helenium puberulum B. L. Parry 1985-4-22 20 Orange Moro Canyon, Crystal Cove State Park, 1.7km E Reef Hill Survey Mark; 3.5km S Signal Peak, San Joaquin Hills 49 Comment
  RSA0013858  Helianthemum scoparium Fred M. Roberts 2012-5-10 7565 Orange San Joaquin Hills: Buck Gully, S Fork, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive. 183 Comment
  RSA734962  Helianthemum scoparium A. C. Sanders, Fred M. Roberts, A. O'Neal 2008-5-9 35309 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  UCR4047  Helianthemum scoparium Carole Sims 1965-3-25 s.n. Orange Santa Ana River Canyon, hillside at 24000 Santa Ana Canyon Road (= State Hwy 91), 150 yards north of hwy; also called Gypsum Canyon. West side of gravel company's trucking road. 221 Comment
  CAS-BOT-BC305444  Helianthus annuus Ira L. Wiggins 1966-5-18 20662 Orange Along Associated Road between Yorba Linda Blvd. and Imperial Highway 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
  IRVC777  Helianthus annuus D. Christy 1973-8-1 Orange Newport Back Bay. L.J. Colin MACF 20494. Newport Beach: Bayside Dr. Newport Beach Comment
  UCSB48037  Helianthus annuus Roberts, Fred 1981-9-26 Orange Laguna Beach: Pacific Coast Highway, 1.1km SE El Moro School near Abalone Point 39 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
  SEINET13387984 Image available Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Abundant on hillside in grain, Veeh Ranch, N. of El Toro, CA. 11 mi. SE of Tustin Comment
  RSA263727  Helianthus gracilentus E. W. Lathrop 1970-1-28 7125 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA92427  Helianthus gracilentus F. W. Peirson 1923-5-5 4147 Orange Trabuco Canyon, Santa Ana Mts. 549 Comment
  UCR248972  Heliotropium curassavicum Jeremiah George, Audrey J. George 2013-11-21 s.n. Orange Los Alamitos, adjacent to Los Alamitos Racetrack, north end of Katella Ave. at junction with Enterprise Dr. 9 Comment
  RSA0037205  Heliotropium curassavicum Darren Day, Hal Willis 1984-5-17 025 Orange This plant was found growing 2.3 miles outside of the city of Laguna Beach, on Laguna Canyon Rd. heading north, on the east side of the road. Comment
  IRVC9340  Heliotropium curassavicum subsp. oculatum B. T. Gittins 1967-6-11 2014 Orange Upper Newport Bay. southern coastal 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
  RSA599428  Hemizonia australis R. E. Riefner 1996-7-28 96 -152 Orange San Diego Creek, at Campus Drive. Comment
  RSA0008438  Hemizonia australis Fred M. Roberts 1985-9-17 2263 Orange Irvine: Lot between Walnut Ave. Harvard Ave. and Peter's Creek Channel. 20 Comment
  CLARK-A1528-238  Hemizonia fasciculata Cesareo Perez 1971-5-18 19 Orange Villa Park Comment
  UCR131869  Hemizonia fasciculata J. Mallory, V. McCoy 1995-7-3 6454- 104 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. east of confluence with Santiago Canyon, on a W-facing slope. north of Irvine Lake 300 Comment
  RSA0038312  Hemizonia fasciculata Louis C. Wheeler 1932-6-25 861 Orange Bluff on north side Newport Bay. 6 Comment
  CAS-BOT-BC26068  Hemizonia parryi subsp. australis David D. Keck 1933-9-29 2537 Orange Seal Beach. Comment
  CAS-BOT-BC26069  Hemizonia parryi subsp. australis David D. Keck 1933-9-29 2537 Orange Seal Beach Comment
  LA26011  Hemizonia parryi subsp. australis David D. Keck; 1933-9-29 2537 Orange Seal Beach Comment
  UCR158024  Hemizonia parryi subsp. australis Adrian Wolf 1998-7-21 365 Orange South Coast, Sand Canyon, William R. Mason Regional Park, west of University Dr.--Yale intersection, between Culver and Ridgeline 34 Comment
  UCR94531  Hemizonia parryi subsp. australis Tony Bomkamp 1995-1 s.n. Orange Rancho Mission Viejo, floodplain of Canada Gobernadora west of Casper Regional Park. 140 Comment
  RSA695596  Hemizonia pungens subsp. pungens Keith E. Hoffmaster 1937-6-27 s.n. Orange Midway City. Comment
  JEPS43407  Hesperocnide tenella Lawrence M. Booth 1932-5-19 1064 Orange Newport Bay Comment
  RSA0119678  Hesperocnide tenella Fred M. Roberts 2015-3-10 7927 Orange San Joaquin Hills: Niguel Hill, on ridge above Aliso Canyon ear end of Ceanothus Drive (Hangover House property), 0.4 km WNW summit Aliso Peak. 122 Comment
  RSA735027  Hesperocnide tenella Scott D. White, Justin M. Wood 2008-4-10 11847 Orange Chino Hills: Powerline access road just N of CHSP boundary and just W of Orange/SB co. line. Approx. 1 mi. NW of Gilman Peak. 366 Comment
  UCSB52949  Hesperocnide tenella Roberts, Fred; Allen, R. 1983-3-27 Orange Dana Point Headlands: above Dana Strand Beach, 0.9km W Dana Point Harbor; 1.0km SW Richard Henry Dana School 40 Comment
  CAS-BOT-BC143751  Heteromeles arbutifolia Carl B. Wolf 1932-12-19 4430 -A Orange 1/2 mi. from Skyline Drive on firebreak road to Sierra Peak, Santa Ana Mts. 914 Comment
  CAS-BOT-BC143754  Heteromeles arbutifolia Dr. Barton W. Evermann 1918-3-25 s.n. Orange San Clemente Comment
  CAS-BOT-BC143755  Heteromeles arbutifolia John Thomas Howell 1927-7-16 2783 Orange Hills on north side of Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC167001  Heteromeles arbutifolia T. B. Salvato 2010-10-27 5138 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  UCR103714  Heteromeles arbutifolia B. G. Pitzer, T. Tennant 1997-11-8 3368 Orange San Joaquin Hills, Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 85 Comment
  SEINET10865978  Heteromeles arbutifolia David B. Dunn 1975-1 Dunn 22401 Orange Around the comdominium pacific island estates in laguna niguel area, california Holly 30 Comment
  UCSB17165  Heteromeles arbutifolia Gerhart, Janet 1963-2-22 Orange 1/2 mile south of Trabuco Canyon Road junction on Gubernadora Canyon Road, 11.4 miles east of U.S. Highway 101 at El Toro Marine Base 304 Comment
  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
  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
  UCR193610  Heterotheca grandiflora A. C. Sanders, Fred M. Roberts 2008-5-6 35236 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  UCR223954  Heterotheca grandiflora Fred M. Roberts, Carol A. Roberts 2008-9-28 7110 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve near northeast Gate, 0.5 km west Marine Institute, Dana Point Harbor 75 Comment
  RSA0075812  Heterotheca grandiflora R. E. Riefner 2000-8-8 20 -716 Orange NCCP North Ranch Policy Plan Area. NE property; E slope of upper Fremont Cyn.; S of Donaldson Ranch area and S of powerline / National Forest boundary. 454 Comment
  SD8916  Heterotheca grandiflora George R. Kleeberger Nov 1875 Orange Santa Ana Valley Comment
  RSA689546  Heterotheca sessiliflora subsp. echioides R. E. Riefner 2000-8-8 20 -715 Orange NCCP North Ranch Policy Plan Area. NE property; E slope of upper Fremont Cyn.; S of Donaldson Ranch area and S of powerline / National Forest boundary. 454 Comment
  UCD133095  Heterotheca sessiliflora subsp. sessiliflora J. C. Elmore 1929-9-26 2164 Orange San Juan Capistrano. Comment
  RSA25872  Hibiscus trionum E. L. Paddock 1941-9-8 120 Orange L.J. Vejar Ranch, E of Yorba Linda. Comment
  RSA483123  Hirschfeldia incana Josephine Derigo 1941-7-25 s.n. Orange Anaheim. Comment
  CAS-BOT-BC207960  Hoffmannseggia glauca Margaret K. Bellue 1933-6-7 s.n. Orange Unspecified Comment
  CAS-BOT-BC207961  Hoffmannseggia glauca Goodwin 1933-7-6 s.n. Orange Unspecified 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
  UCR247907  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 km ENE Silverado School and 1.4 km up stream Black Star Road crossing. 320 Comment
  POM211899  Holodiscus discolor B. D. Stark 1931-6-10 2248 Orange east fork of Claymine Canyon, north end of Santa Ana Mts 305 Comment
  CAS-BOT-BC150007  Holodiscus discolor var. discolor Carl B. Wolf 1933-8-24 5390 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  RSA542404  Holodiscus discolor var. franciscanus Bernard Jaroslow 1989-5-29 B- 24 Orange Along trail just below truck trail, in the canyon of Upper Santiago Creek, above deserted mines Comment
  SD181760  Hordeum depressum Valerie Soza, K. Clark,F. Roberts,W. Miller,L. R. Gross,G. Wallace 2001-4-4 1132 Orange Northern edge of Huntington Harbor: Seal Beach U.S. Naval Weapons Station, southeastern edge of Seal Beach National Wildlife Refuge, along roadside 3 Comment
  RSA678738  Hordeum intercedens Fred M. Roberts, Carol A. Roberts, Robert Allen 2003-5-11 5857 Orange Dana Point Headlands: hilltop, 0.6km SSW Richard Henry Dana School south of Pacific Coast Highway and north of Scenic Drive., (UTM: 11S - 04 33 104mE, 37 02 642mN) 73 Comment
  RSA799617  Hordeum intercedens Justin M. Wood 2011-4-12 3652 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  SD181759  Hordeum intercedens D. Bramlet 1998-5-20 2622 Orange San Juan Hills. 488m west of La Pata Ave. and 1.22km north of Prima Deschecha Canada, drainage, 457m east of the old ridgeline road 149 Comment
  SD255611  Hordeum intercedens D. E. Bramlet 2001-5-15 3143 Orange Santa Ana Mountains Foothills: upper watershed of Deep Canyon, 1300ft E of Krum Reservoir, c. 2 miles SE of San Juan Capistrano, 1200 ft S of Avenida Placida, W of the Prima Desecha landfill (Dana Point 7.5'Q) 200 Comment
  UCR142296  Hordeum intercedens D. E. Bramlet, Sandy Leatherman 1998-5-21 2626 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
  RSA666095  Hordeum marinum subsp. gussoneanum Fred M. Roberts, Michelle Lee 2001-5-14 5459 Orange Rancho Mission Viejo: South of San Juan Creek, 0.6km WNW Median Rancho Survey Marker. PCR Vernal Pool 2., (Canada Gobernadora: 33 deg 30'36''N, 117 deg 35'55''W) 238 Comment
  UCR160532  Hordeum marinum subsp. gussoneanum Robert DeRuff 1993-4-2 444 Orange South Coast, Newport Back Bay, Santa Ana Heights area, coastal end of 23rd Street 15 Comment
  UCR207598  Hordeum marinum subsp. gussoneanum O. F. Clarke 2004-5-19 s.n. Orange South Coast, Fairview Park, Costa Mesa 24 Comment
  RSA542550  Hordeum murinum subsp. leporinum Fred M. Roberts 1988-3-4 3810 Orange Anaheim, along Atchison Topeka RR parallel to Vine St., south of Broadway St., UTM 3743900m N, 416300m E 50 Comment
  IRVC23057  Horkelia cuneata subsp. puberula Fred M. Roberts, M. L. Polek 1985-6-18 1953 Orange Santa Ana Mtns: Chiquito Basin, San Juan Trail, 1.8km SW Blue Jay Campground, 2.7km SSE Los Pinos Pk. Peninsular Ranges 866 Comment
  RSA759250  Hulsea heterochroma Robt Allen, G. Victor Leipzig 2008-6-20 s.n. Orange Upper Silverado Canyon, along Maple Springs Truck Trail, 5.7 road miles up from Maple Springs Forest Gate, 0.8 road miles down from junction with Main Divide Truck Trail. Southwestern end of short road spur. 1313 Comment
  RSA697416  Hymenolobus procumbens Elisabeth Norland 1929-2-16 3 Orange Cypress. Comment
  CAS-BOT-BC312647  Hymenothrix loomisii 1943-12-1 s.n. Orange Costa Mesa Comment
  UCR102032  Hypochaeris glabra B. G. Pitzer 1997-3-25 3011 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR103159  Hypochaeris glabra Scott D. White 1997-3-26 4823 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
  RSA606376  Hypochaeris glabra Jon E. Keeley 1994-4-5 25275 Orange First year burn, east end of Caspers Park S-7 (Keeley 1994) 215 m. 215 Comment
  UCR141342  Iris pseudacorus Robert DeRuff 2000-1 524 Orange Southern Coast, Newport Beach, Newport Back Bay, 23rd Street Creek on W side of the bay 12 Comment
  RSA603299  Isocoma menziesii R. E. Riefner 1997-7-12 97 -234 Orange San Clemente State Beach Comment
  UCR151113  Isocoma menziesii Scott D. White 1998-10-19 7190 Orange Santa Ana Mtns foothills, Yorba Linda, c. 0.5 mi south of Telegraph Canyon between Ohio St. and Fairmont 305 Comment
  UCR271002  Isocoma menziesii Mitch Provance, Travis Kegel 2016-4-8 416- 61 Orange Coastal Regions of Southern California, Newport Beach, W of the W end of 16th Street, and E of the Banning Oil Fields 32 Comment
  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
  CHSC100702  Isocoma menziesii var. vernonioides R. E. Riefner Jr. 2004-9-18 04 -425 Orange City of Yorba Linda; Santa Ana River, Horseshoe Bend, near La Palma Rd. and Via Del Rio Rd. UTM 11S 0431519E 3749312N. NAD 83. 105 Comment
  IRVC24537  Isocoma menziesii var. vernonioides J. Johnson 1976-8-10 Orange Newport [Back] Bay. Newport Beach Comment
  RSA5239  Isocoma menziesii var. vernonioides C. B. Wolf 1932-9-13 4027 Orange Bryant Ranch: Triangle of waste ground S of Bryant Ave., & 1/2 mi. west of Los Alamitos Blvd. (Triangle waste ground at NW corner of SW 1/4 sect. 30 T4S R11W) 8 Comment
  RSA573431  Isocoma menziesii var. vernonioides Steve Boyd, Tim Ross 1994-9-14 8344 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
  RSA743518  Isocoma menziesii var. vernonioides Fred M. Roberts, Carol A. Roberts 2008-9-28 7114 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 75 Comment
  SD136909  Isocoma menziesii var. vernonioides Steve Boyd, Tim Ross 1994-9-14 8344 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness area, Lucas Canyon trail at stream crossing in Aliso Canyon 341 Comment
  CAS-BOT-BC112434  Isolepis cernua Mark A. Elvin; D. Kelch 2006-12-9 5302 Orange Southern Coastal: Newport Backbay, Big Canyon, lower end. 3 Comment
  POM186294  Isolepis cernua Joseph A. Ewan 1932-7-29 7727 Orange Newport Lagoon, on road around hills to Costa Mesa. Comment
  RSA750904  Isolepis cernua A. C. Sanders, Fred M. Roberts 2008-7-3 35708 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  IRVC312  Isomeris arborea Aldis 1965-3-27 Orange Irvine [Regional] Park Comment
  IRVC9276  Isomeris arborea B. Gittins 1962-10-21 84 Orange gully near 1259 Victoria. Costa Mesa Comment
  UC1090402  Isomeris arborea Milo S. Baker 1958-5-20 13307 Orange Newport Bay Comment
  UC72699  Isomeris arborea E. A. Zumbro 1902-1 372 Orange Comment
  CAS-BOT-BC324739  Iva axillaris Carl B. Wolf 1932-6-28 3804 Orange Bryant Ranch, edge of field on Bixy Ave. 228 Comment
  CLARK-A1528-1975  Jaumea carnosa John C. Roos 1949-10-1 4682 Orange Doheney Beach Comment
  IRVC24542  Jaumea carnosa John Johnson 1976-8-10 Orange Newport Back Bay; coastal salt marsh. Newport Beach Comment
  PASA1561  Jaumea carnosa Frank W. Peirson 1924-8-29 Orange 3 miles from Balboa on road inland along creek Comment
  CAS-BOT-BC101917  Juglans californica John Thomas Howell 1927-7-27 2847 Orange Hills on n. side of Santa Ana [Canon] Canyon 152 Comment
  CHSC116494  Juglans californica R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49613 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station. Comment
  RSA0011059  Juglans californica I. L. Wiggins 1966-5-11 20660 Orange Carbon Canyon about 1 mile above its mouth. Comment
  RSA0011066  Juglans californica D. A. Young 1969-5-21 P 408 Orange Collected approx. 10 miles NE of CSCF [Calif State College Fullerton, now CSUSF] on Carbon Canyon Rd. at the Orange Co. Line. 244 Comment
  RSA0011067  Juglans californica Gary D. Wallace 1964-5-22 s.n. Orange Santa Ana Canyon Comment
  RSA791495  Juglans californica Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49613 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station Comment
  SD7922  Juglans californica var. californica George R. Kleeberger 1878-12-1 Orange Santa Ana Valley Comment
  CAS-BOT-BC229009  Juglans hindsii R. E. Riefner, Jr. 2011-9-10 11 -124 Orange Santa Ana Canyon, I-91 northbound, S side of freeway, located within 100 ft of the Riverside County line 127 Comment
  CAS-BOT-BC334501  Juglans hindsii R. E. Riefner, Jr. 2010-9-8 10 -121 Orange City of Laguna Beach, Laguna Canyon, ca 0.15 mi S of El Toro Rd. on E side of Laguna Canyon Rd. 75 Comment
  SD241062  Juglans hindsii R. E. Riefner Jr. 2011-8-25 11 114 Orange Trabuco Canyon, Trabuco Canyon Road ca. 1 mile NW of O'Neill Regional Park. 319 Comment
  UCD169219  Juglans hindsii R. E. Riefner Jr. 2015-7-2 15- 191 Orange City of Laguna Beach, Laguna Canyon, ca. 0.25 mi S of El Toro Rd. on E side of Laguna Canyon Rd. 75 Comment
  UCR242862  Juglans hindsii R. E. Riefner Jr. 2011-9-10 11- 124 Orange Santa Ana Canyon, Hwy I-91 northbound, south side of fwy, within 100 ft of the Riverside County line 127 Comment
  SD236315  Juglans nigra A. C. Sanders, Fred M. Roberts 2008-6-17 35477 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 259 Comment
  RSA0038707  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
  RSA22739  Juglans regia Carl B. Wolf 1939-11-29 9545 Orange Orange County Picnic Grounds, Comment
  SD245183  Juncus macrophyllus R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49575 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  RSA105  Juncus mexicanus J. T. Howell 1927-6-21 187 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA562612  Juncus patens Steve Boyd, Fred M. Roberts 1992-10-14 7714 Orange Northern Santa Ana Mountains, vicinity of Oak Flats (aka Oat Flats) northeast of the junction of Main Divide Road and Skyline Road, just west of Riverside County line 800 Comment
  RSA715247  Juncus rugulosus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33025 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
  POM201725  Juncus textilis L. M. Booth 1932-6-7 1159 Orange Newport Lagoon. Comment
  SEINET3282755 Image available Juncus textilis A. C. Sanders, Fred M. Roberts 2008-7-16 35855 Orange Peninsular Range; Santa Ana Mtns.; Lomas de Santiago, upper Hangmans Tree Canyon. 395 Comment
  UC1601822  Juncus torreyi S. B. and W. F. Parish 1882-10-1 1593 Orange Orange Comment
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Jul 18 2010
  POM1593  Juncus xiphioides C. B. Bradshaw 1903-9-25 s.n. Orange Silverado Canyon. Comment
  SEINET10929342  Juniperus David B. Dunn 1971-8-13 Dunn 18109 Orange Cultivated plants at Costa Mesa, California. Comment
  SEINET10932780  Juniperus chinensis Charlene A. Bennett 1976-7-21 Bennett 438 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  CAS-BOT-BC516185  Juniperus rigida var. conferta R. E. Riefner, Jr. 2011-7-1 11 -81 Orange City of Newport Beach, between Shorecliff Road and Cameo Shores Road 18 Comment
  CAS-BOT-BC235490  Keckiella antirrhinoides John Thomas Howell 1927-6-5 2430 Orange Santa Ana Canyon 152 Comment
  RSA552937  Keckiella antirrhinoides Fred M. Roberts Jr. 1989-5-9 4339 Orange Santa Ana Mts: Gypsum Canyon, west fork, 5.6 km WNW Sierra Peak, c.a. 1 km S Highway 91. 146 Comment
  CAS-BOT-BC235529  Keckiella antirrhinoides var. antirrhinoides Robinson; Crocker 1916-3-28 999 Orange Santa Ana Mt Comment
  SD245484  Keckiella antirrhinoides var. antirrhinoides Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49601 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  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
  NY790204  Keckiella cordifolia S. McCoy 1932-6-3 243 Orange Near Brea Comment
  NY790216  Keckiella cordifolia F. R. Fosberg 1931-6-21 S 5133 Orange Silverado Canyon, Santa Ana Mountains Comment
  NY790232  Keckiella cordifolia F. W. Pennell 1949-6-29 26806 Orange Ortega Highway, above San Juan Capistrano 365.8 Comment
  RSA5930  Keckiella cordifolia Carl B. Wolf 1932-7-2 3822 Orange Carbon Canyon, 1/8 mile below La Vida Springs [La Vida Mineral Springs]. 213 Comment
  UCR27507  Keckiella cordifolia T. P. Krantz 1981-6-18 s.n. Orange Santa Ana Mtns, Main Divide Truck Trail near the head of the canyon Comment
  UCR36089  Keckiella cordifolia D. C. Michener 1980-7-14 s.n. Orange Santa Ana Mtns., Starr Ranch Audubon Sanctuary. Crow Creek, c. 1.3 miles north of confluence with Bell Canyon 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
  RSA184078  Kochia scoparia I. L. Wiggins 1966-4-3 20576 Orange Railroad embankment near entrance to Rancho Santa Ana. Comment
  UCR209381  Koeleria macrantha Fred M. Roberts, Linda Farley 2008-3-28 6824 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
  CDA35534  Koelreuteria bipinnata D. G. Kelch, Mark Elvin 2006-12-9 6 .556 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  CDA7193  Koelreuteria bipinnata T. B. Salvato, K. Kurtz, Mitch Provance 2006-10-15 1903 Orange South Coast; Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Dirve. Comment
  IRVC21694  Lactuca serriola Fred M. Roberts 1984-8-2 1365 Orange UC Irvine, along Adobe Circle Raod, 0.9km ENE campus center; 2.3km W French Hill, Irvine 30 Comment
  CAS-BOT-BC413811  Lagunaria patersonia R. E. Riefner, Jr. 2014-6-25 14 -209 Orange City of Laguna Beach, Shaw's Cove, north of Cliff Dr. and Fairview St. 3 Comment
  UCD63304  Lamarckia aurea W. W. Robbins 1931-5-11 2202 Orange Santa Ana. 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
  RSA577751  Lamarckia aurea F. M. Reed 1925-4-15 6325 Orange Santa Ana Canyon, near canal bridge Comment
  SEINET11678604  Lamarckia aurea J. Bright, Wyman, C. 1933-1 8223 Orange around Laguna Beach Comment
  UCSB52935  Lastarriaea coriacea Roberts, Fred 1984-5-1 Orange Wagon Wheel Regional Park; Wagon Wheel Canyon; 3.1km NE Median Rancho Survey Mark; 1.2km NNW BM 422 165 Comment
  CAS-BOT-BC338906  Lasthenia californica Baker 1904-4-1 4088 Orange Anaheim Comment
  HSC5147  Lasthenia californica S. M. Clapp 1966-4-10 46 Orange 10 mi. into Black Star Canyon, near the summit 244 Comment
  RSA3172  Lasthenia glabrata subsp. coulteri C. B. Wolf 1932-3-8 2691 Orange Sunset Beach, near S city limits 2 Comment
  SD248339  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. 210 Comment
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Apr 7 2021
  RSA0127420  Lasthenia gracilis Fred M. Roberts 2016-3-17 8015 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  UCR51672  Lasthenia gracilis Lyman Benson 1946-4-27 12056 Orange South Coast, Corona Del Mar, bluffs above the beach 15 Comment
  CSUSB1272  Lathyrus laetiflorus Geoffrey Matthews 1971-5-15 Orange 3 miles north of Morrill Valley Comment
  RSA1702  Lathyrus vestitus subsp. alefeldii C. B. Wolf 1931-3-6 1835 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  POM9824  Lathyrus vestitus subsp. alefeldii P. A. Munz, R. D. Harwood 1920-5-25 3732 Orange Silverado Canyon 549 Comment
  RSA406636  Lathyrus vestitus subsp. alefeldii M. B. Dunkle 1934-2-19 3844 Orange San Juan Canyon, 366 Comment
  CAS-BOT-BC380859  Layia platyglossa P. A. Munz 1918-5-4 2172 Orange Laguna Comment
  RSA0013587  Layia platyglossa D. E. Bramlet, Jim Harrison 2008-4-3 4151 Orange South Bee Cyn. Bowerman landfill site, 1.2km south of Bee Cyn access road, & 122n west of the active landfill. Comment
  RSA13056  Layia platyglossa subsp. campestris Percy C. Everett 1935-4-15 6462 Orange 8/10 mile E of Atwood on S side of Santa Fe RR. 107 Comment
  RSA17019  Layia platyglossa subsp. campestris Percy C. Everett 1935-4-15 6462 Orange 8/10 mile E of Atwood on S side of Santa Fe RR. 107 Comment
  IRVC29729  Lemna Mark A. Elvin, Barry S. Nerhus 2006-11-4 5243 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  UCR113452  Lepechinia cardiophylla R. E. Riefner Jr. 2000-4-5 20- 211 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, Main Divide Road, top of Gypsum Canyon, east of Windy Ridge 518 Comment
  RSA716659  Lepidium didymum Fred M. Roberts 2005-5-13 6188 Orange San Juan Capistrano; Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  UCSB48078  Lepidium didymum Roberts, Jr., Fred; Fritzke, Sue 1982-4-3 Orange Dana Point; hills, 1.0 km. N Dana Hills High School; 1.9 km. W Marco Forster Junior High School 100 Comment
  POM183942  Lepidium lasiocarpum P. A. Munz 1932-3-29 12191 Orange Costa Mesa. Comment
  RSA0013586  Lepidium lasiocarpum D. E. Bramlet, Jim Harrison 2008-4-3 4152 Orange South Bee Cyn. Bowerman landfill site, 1.2km south of Bee Cyn access road, & 122n west of the active landfill. Comment
  UC450973  Lepidium lasiocarpum var. lasiocarpum Fay A. MacFadden 1931-3-1 2925 Orange Laguna Beach Comment
  CDA23129  Lepidium latifolium Mary H. White, Mark A. Elvin 2006-9-23 923064 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge along San Diego Creek, north of University Drive, east of Highway 73. Comment
  CAS-BOT-BC12523  Lepidium nitidum Ira L. Wiggins 1966-2-12 20431 Orange North side of La Palma Avenue near Harbor Boulevard, Anaheim. Comment
  IRVC1093  Lepidium nitidum D. Orr 1965-4-10 Orange Trabuco Road, 3mi E El Toro Marine Base. El Toro Comment
  RSA429634  Lepidium nitidum Jeannette B. Edge 1934-2-10 18851 Orange Corona Del Mar 30 Comment
  UCR191444  Lepidium nitidum A. C. Sanders, Fred M. Roberts 2008-4-8 34726 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  CSUSB545  Lepidium nitidum Oscar F. Clarke 1966-3-19 S. N. Orange Irvine Ranch, east of University of Calif. at Irvine, Newport Beach Comment
  IRVC1108  Lepidium nitidum B. Mawdsley 1965-3-24 Orange Corona del Mar, Narcissus and 5th. Newport Beach Comment
  RSA362301  Lepidium pinnatifidum Fred M. Roberts 1985-6-2 1836 Orange San Clemente: El Camino Real, 0.2 km by road WNW Ave Pico. 5 Comment
  UC1543107  Lepidium virginicum Donald G. Nelson 1935-3-23 180 Orange just s E. Orange Thorpe Ave. (e Fullerton); Fullerton Comment
  CAS-BOT-BC274367  Leptochloa Ira L. Wiggins 1965-11-5 20336 Orange Along west side of village of Atwood Comment
  RSA161259  Leptochloa fusca subsp. uninervia P. H. Raven 1961-10-15 16851 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing 61 Comment
  IRVC27751  Leptochloa uninervia Mark A. Elvin 2004-5-2 3425 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA698317  Leptodactylon californicum R. H. McArthur 1934-3-25 s.n. Orange Limestone Canyon Comment
  POM10156  Leptosiphon androsaceus P. A. Munz, R. D. Harwood 1920-4-24 5773 Orange Santa Ana Mountains 366 Comment
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Sep 17 2011
  RSA574  Leptosiphon androsaceus J. T. Howell 1928-4-7 905 Orange Botany Garden, Rancho Santa Ana. [original location] Comment
  POM3492  Leptosiphon androsaceus Crawford s.n. Orange Laguna Mts. 305 Comment
  RSA72060  Leptosiphon floribundus Robert L. Dressler 1949-4-24 755 Orange Lower San Juan camping grounds. Comment
  POM49705  Leptosiphon liniflorus L. R. Abrams 1901-06 1797 Orange Trabuco Canyon Comment
  RSA731967  Leymus condensatus A. Sanders 2008-4-29 35137 Orange Lomas de Santiago, western end of Loma Ridge on road to shriff's training facility, c. 1.5mi SW of Santiago Reservoir. Comment
  RSA0018626  Leymus condensatus Rankin s.n. Orange Santa Ana. PR8. Comment
  RSA0011628  Leymus triticoides Rankin s.n. Orange Santa Ana Comment
  RSA377146  Lilium humboldtii subsp. ocellatum Albert J. Perkins 1923-6-24 s.n. Orange Silverado Canyon Comment
  RSA649674  Lilium humboldtii subsp. ocellatum R. E. Riefner 2000-6-30 20 -594 Orange NCCP North Ranch Policy Plan Area. N Fremont Canyon at Donaldson Ranch adjacent to powerline crossing on W fork of Fremont Canyon drainage. 427 Comment
  UC1789093  Limonium R. E. Riefner Jr. 2005-9-16 05 -667 Orange Upper Newport Bay, E of Bayside Dr. at Big Canyon Creek. 6 Comment
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Jan 7 2016
  CDA34987  Limonium binervosum Daniel Sanchez-Mata 2006-7-1 Orange Laguna Niguel, Dana Point Highlands, Crown Valley Parkway-Pacific Island Drive. Comment
  UCR261695  Limonium perezii Dick Newell, Don Millar, Judy Booth 2015-4-15 402 Orange South Coast, city of Newport Beach, North Star Beach, 90 yards NE of Newport Aquatic Center bulding 3 Comment
  UCR6061  Limonium perezii Sue Freeman 1966-3-27 s.n. Orange South Coast, Laguna, off end of Wave Street 6 Comment
  UCD98535  Limonium sinuatum E. Frost 1996-5-11 17 Orange Newport Back Bay, 25 yards in along bike path. Comment
  RSA5277  Linanthus californicus B. D. Stark 1932-12-15 4453 Orange Rancho Santa Ana, slope above grove #4. 145 Comment
  SD42979  Linanthus californicus E. B. Harbison Mar 1948 Orange San Juan Camp. Comment
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Sep 30 2013
  HSC17099  Linanthus dianthiflorus J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  RSA678735  Linanthus dianthiflorus Fred M. Roberts, Carol A. Roberts, Robert Allen 2003-5-11 5860 Orange Dana Point Headlands: hilltop, 0.6km SSW Richard Henry Dana School south of Pacific Coast Highway and north of Scenic Drive. 73 Comment
  UCR191778  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-3-25 34570 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
  UCR266297  Linanthus dianthiflorus D. E. Bramlet, J. E. Harrison 2008-4-3 4155 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
  POM364568  Linanthus dianthiflorus subsp. dianthiflorus Jean Carnine 1932-3-6 15307 Orange Trabuco Canyon. Comment
  RSA539354  Linanthus dianthiflorus subsp. dianthiflorus Fred M. Roberts, Karen Kirtland 1989-2-22 4185 Orange San Joaquin Hills: Pelican Hill, 0.5km ESE Summit. 177 Comment
  SEINET7067522  Linanthus liniflorus A. G. Vestal 1947-6-12 s.n. Orange Canyon Road to Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 444428mE, 3723792mN. Comment
  UCR266676  Linanthus liniflorus D. E. Bramlet 2008-5-20 4278 Orange Peninsular Range; Santa Ana Mtns. Foothills, northern Loma Ridge, 305 m west of Hwy 241, 975 m south of Santiago Canyon Rd., 61 m north of access road 355 Comment
  CAS-BOT-BC432274  Lithophragma affine Frank W. Peirson 1925-4-11 5734 Orange Silverado Canyon, Santa Ana Mts. 609 Comment
  CAS-BOT-BC432275  Lithophragma affine Alice Eastwood; John Thomas Howell 1937-4-24 3927 Orange 2 miles E of San Juan Hot Springs Comment
  POM8811  Lithophragma affine subsp. mixtum P. A. Munz, R. D. Harwood 1920-4-24 3782 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA651345  Lobularia maritima Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange 60 Comment
  RSA0069230  Logfia arizonica Fred M. Roberts, Megan Lulow 2009-3-18 7135 Orange Santa Ana Mtns.: Lomas De Santiago: Loma Ridge, Lower Hicks Canyon, about 350 meters from south side of Haul Road, 1.9 km E Rattlesnake Cyn. Reservoir Dam and 2.1 km W Bee Peak. 172 Comment
  SD247597  Logfia gallica R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49657 Orange Northern Santa Ana Mountains: Coal Canyon (NW of Sierra Peak). Comment
  UC729941  Lolium perenne Carl B. Wolf 1932-6-13 3728 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  RSA0011618  Lolium perenne Rankin s.n. Orange Santa Ana Comment
  RSA697737  Lolium perenne subsp. multiflorum Minor Warne 1934-5-11 s.n. Orange Talbert Drainage. Comment
  RSA5946  Lolium perenne subsp. multiflorum C. B. Wolf 1932-7-7 3858 Orange Pump house on Bryant Ave., 0.5 mile E of Los Alamitos Blvd. 8 Comment
  POM265762  Lolium temulentum J. C. Roos 1937-5-21 2068 Orange Lemon Heights Comment
  RSA6094  Lolium temulentum E. R. Johnson 1932-5-18 3638 Orange Bordering Rancho Santa Ana Botanic Garden 195 Comment
  UCR86995  Lomatium dasycarpum B. G. Pitzer, Stu Hemstreet 1992-5-27 1956 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
  UCR130488  Lomatium utriculatum R. E. Riefner Jr. 2000-4-27 00- 392 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running south from Baker Canyon Road to Silverado Road 335 Comment
  CAS-BOT-BC240668  Lonicera interrupta A. M. White 1974-6-1 1408 Orange Ca. 20 mi. E. of Santa Ana, N. of Silverado Canyon Comment
  CAS-BOT-BC241459  Lonicera involucrata var. ledebourii Agnes M. Bowman 1899-6-1 s.n. Orange Orange Comment
  CAS-BOT-BC234845  Lonicera subspicata var. denudata Helen D. Geis 1902-5-1 s.n. Orange Santiago Canon [Canyon] Comment
  RSA788249  Lonicera subspicata var. johnstonii R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49625 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  RSA797909  Lotus crassifolius Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49819 Orange Santa Ana Mountains: Trabuco Canyon Comment
  HSC95603  Lotus hamatus D. Atwood 1993-3-27 17693 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  RSA733840  Lotus hamatus A. C. Sanders 2008-4-29 35132 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriffs training facility, c. 1.5 mi. SW of Santiago Reservoir. 335 Comment
  RSA689413  Lotus heermannii Scott D. White, Amanda Duchardt 2003-4-10 9006 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  UC1543225  Lotus heermannii Donald G. Nelson 1935-4-6 256 Orange San Juan Capistrano, below main highway, about 4 mi from summit San Juan Canyon 60 Comment
  RSA748261  Lotus purshianus A. C. Sanders, Mitch Provance 2008-5-20 35394 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
  RSA754059  Lotus purshianus A. C. Sanders, Fred M. Roberts 2008-7-16 35854 Orange Lomas de Santiago, upper Hangmans Tree Canyon. 395 Comment
  CDA25636  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-5-6 35232 Orange Peninsular Range; Santa Ana Mountains; Lomas de Santiago, lower Hicks Canyon, just above tollway (Highway 241) crossing on Irvine Haul Road, near debris basin. Comment
  POM1916  Lotus salsuginosus I. M. Johnston 1918-5-4 1932 Orange Laguna Beach 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
  UCR222416  Lotus salsuginosus D. E. Bramlet 2008-3-26 4118 Orange Peninsular Range; Santa Ana Mountains, Bee Canyon, Bowerman landfill site. 202 m south of the Bee Canyon access road and 151 m west of the active landfill entrance 295 Comment
  RSA697974  Lotus salsuginosus H. Dittmer 1932-5-16 s.n. Orange Road to Irvine Dam Comment
  HSC1876  Lotus scoparius J. W. Johnson 1961-2-19 Orange Newport Beach, above upper Newport Bay Comment
  RSA3183  Lotus scoparius C. B. Wolf 1932-3-8 2680 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA393  Lotus scoparius J. T. Howell 1927-6-1 4 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA406883  Lotus scoparius M. B. Dunkle 1933-4-9 3286 Orange Dana Point. Comment
  RSA678492  Lotus scoparius Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5851 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  UC1129145  Lotus scoparius A. Lewis 1934-3-1 346 Orange San Juan Hills Corona Quad. 396 Comment
  UCR191227  Lotus scoparius subsp. brevialatus A. C. Sanders 2008-4-29 35121 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
  IRVC2240  Lotus scoparius subsp. scoparius J. Morgan 1965-4-4 Orange Laguna Canyon. Laguna Beach Comment
  IRVC2264  Lotus scoparius subsp. scoparius B. Newman 1965-3-14 Orange Dana Point Comment
  UCR193062  Lotus scoparius var. scoparius A. C. Sanders, Fred M. Roberts 2008-5-6 35219 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  POM50643  Lotus strigosus L. R. Abrams 1901-06 s.n. Orange Laguna Comment
  RSA406321  Lotus strigosus M. B. Dunkle 1933-3-5 3087 Orange San Juan Canyon 304 Comment
  RSA680915  Lotus strigosus Scott D. White 2003-3-21 8800 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  UCR192996  Lotus strigosus A. C. Sanders, T. B. Salvato 2008-5-13 35341 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
  UCR203986  Lotus strigosus var. strigosus Fred M. Roberts 2008-3-12 6727 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
  IRVC2225  Lotus strigosus var. strigosus E. P. Cowper 1964-4-10 Orange Corona del Mar Highschool. Newport Beach Comment
  RSA562727  Lotus unifoliolatus Steve Boyd, T. S. Ross 1992-5-20 7463 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along canyon floor from crossing Lucas Canyon Trail, upstream 1/4 mile to spur trail leading to old mining habitations in side canyon. 305 Comment
  RSA406363  Lotus wrangelianus M. B. Dunkle 1933-3-5 3086 Orange San Juan Canyon 304 Comment
  RSA649845  Lotus wrangelianus D. E. Bramlet 2000-4-17 2985 Orange West of Blind Cyn. and North of Irvine Park. The site is 2 km west of Blind Canyon and 305m north of Irvine Park. This locality is 183m southwest of the MWD access road. 220 Comment
  RSA90341  Lotus wrangelianus F. W. Peirson 1922-5-18 4083 Orange Santa Ana River Canyon Comment
  UCR193295  Lupinus bicolor A. C. Sanders, T. B. Salvato 2008-5-13 35340 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  SD247647  Lupinus bicolor R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49713 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA652742  Lupinus bicolor subsp. microphyllus R. B. Newcom 1948-4-24 26 Orange 3 miles NW of Irvine Park 45 Comment
  IRVC22012  Lupinus bicolor subsp. umbellatus Fred M. Roberts, Gordon Marsh 1985-3-12 1506 Orange mesa west of Ave. Pico and north of El Camino Real, 3.2km SSE Coyote Bluff; 0.6km E Bench Mark 16 (sect. 32), San Clemente 37 Comment
  RSA699738  Lupinus densiflorus Keith E. Hoffmaster 1935-4-19 s.n. Orange Santa Ana Mts. (Trabuco Rd.) Comment
  UC527218  Lupinus excubitus C. B. Wolf 1931-3-25 1936 Orange along the Santa Fe R.R. 1 mi w Esperanza (Santa Ana Canyon); Santa Ana Canyon 106 Comment
  UCR46561  Lupinus excubitus B. G. Pitzer, D. C. Hawks 1986-10-21 342 Orange Peninsular Ranges; Santa Ana Mountains, Lomas de Santiago, c. 10 mi east of Santa Ana along Jeffrey Rd. in Hicks Canyon, c. 1.0 mi north of South Coast Gun Club 183 Comment
  SEINET10906962  Lupinus excubitus subsp. hallii Stark 1933-2-3 STARK 18897 Orange Garden #6455 from 1780 (many generations!). Comment
  CAS-BOT-BC216692  Lupinus excubitus var. excubitus C. B. Wolf 1931-3-25 1936 Orange 1 mile W of Esperanza, Along the Santa Fe RR, Santa Ana Canyon 106 Comment
  CAS-BOT-BC216694  Lupinus excubitus var. excubitus Carl B. Wolf 1930-3-25 1936 Orange 1 mile W of Esperanza siding of Santa Fe RR 106 Comment
  IRVC2309  Lupinus excubitus var. hallii C. Thompson 1965-5-8 s.n. Orange Silverado Canyon. Santa Ana Mountains Comment
  RSA503884  Lupinus excubitus var. hallii M. B. Dunkle 1938-5-28 5285 Orange San Juan Canyon Comment
  JEPS65253  Lupinus hirsutissimus Alice King 1907-1 Orange Santa Ana 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
  CLARK-A1528-2843  Lupinus latifolius C. P. Smith 1937-5-10 Orange San Juan Capistrano Comment
  RSA619107  Lupinus latifolius subsp. parishii R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  RSA542381  Lupinus longifolius Fred M. Roberts, T. Sholars, B. Stechmeyer 1988-3-29 3889 Orange Lomas De Santiago: Lomas Ridge, Santiago Canyon Road, 5.5km NW Silverado Canyon Road Jct. 256 Comment
  RSA542382  Lupinus longifolius Fred M. Roberts, T. Sholars, B. Stechmeyer 1988-3-29 3878 Orange Santa Ana Mountains: Hot Springs Canyon, 0.5 km by road north Hwy 74, 0.9 km ESE Juan Rancho Survey Marker. 223 Comment
  RSA749636  Lupinus longifolius D. E. Bramlet, Fred M. Roberts 2008-4-4 4173 Orange Loma Ridge, beside existing dirt access rd. 1.16km west of Hicks Haul Rd. and 1.6 km SW of Santiago Cyn Rd. 369 Comment
  RSA797239  Lupinus longifolius Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49801 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UC201985  Lupinus longifolius D. L. Crawford 1916-5-10 735 Orange Laguna Canyon; Southern California 152 Comment
  SEINET3131617  Lupinus sparsiflorus Unknown 1903-4-19 3277 Orange Near San Juan Comment
  UC153540  Lupinus sparsiflorus LeRoy Abrams 1903-4-19 3277 Orange near San Juan; near San Juan Comment
  UCSB47590  Lupinus sparsiflorus Roberts, Jr., Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Canyon, Rte. 74, 0.6 km. E San Juan Guard Station 238 Comment
  RSA722339  Lupinus sparsiflorus R. H. McArthur 1934-3-25 s.n. Orange Field W. of Irvine Park. Comment
  IRVC20366  Lupinus sparsiflorus subsp. sparsiflorus Fred M. Roberts 1983-3-16 932 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
  IRVC2355  Lupinus succulentus Janet Morgan 1965-3-3 s.n. Orange Laguna Canyon. Southern Coastal Comment
  UCR98905  Lupinus succulentus Scott D. White 1993-2-17 1051 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Cyn Rd & east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  IRVC16721  Lupinus succulentus J. B. Anderson 1966-4-9 545 Orange San Joaquin Hills: Coyote Canyon, north facing slope, 1/4 mile W of Signal Peak Southern Coastal 274 Comment
  SD248503  Lycium brevipes var. hassei R. E. Jr. Riefner 2014-4-12 14 77 Orange City of San Clemente, San Clemente State Beach, SSW ca. 100 m from the intersection of Ave. Calafia and South Ola Vista Rd. Along trail. 39 Comment
  UCR253000  Lycium brevipes var. hassei R. E. Riefner Jr. 1995-3-19 95- 77 Orange South Coast, San Clemente State Beach 40 Comment
  CAS-BOT-BC233471  Lycium californicum Albert N. Steward 1958-3-20 7396 Orange East of Daylight Pass, Death Valley National Monument 1219 Comment
  CAS-BOT-BC516184  Lycium californicum R. E. Riefner, Jr. 2012-11-24 12 -558 Orange City of San Clemente, Presidio Ave., ca. 0.2 mi S of Ave. Pico 34 Comment
  RSA0014845  Lythrum californicum Scott D. White 1997-6-12 5315 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
  UC73416  Lythrum californicum E. A. Zumbro 1902-1 389 Orange Orange County Comment
  UCR107221  Lythrum californicum Scott D. White 1998-5-31 6570 Orange University of California, Irvine campus, SW of Farm School site (now proposed as Student Recreation Center). 37 Comment
  CLARK-A1528-5623  Madia sativa John C. Roos 1960-5-30 Orange Santa Ana Mountains Comment
  CAS-BOT-BC206251  Malacothamnus fasciculatus Louis C. Wheeler 1932-7-9 941 Orange Santa Ana River, 5 mi. below Prado 152 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
  CAS-BOT-BC206255  Malacothamnus fasciculatus Cecil Hart 1928-5-27 s.n. Orange Laguna Beach Comment
  RSA433317  Malacothamnus fasciculatus Thekla Mohr 1917-04 1931 Orange Laguna. Comment
  RSA0039647  Malacothamnus fasciculatus T. Sargent 1959-5-17 s.n. Orange South slope of ridge on south side of Santa Ana Canyon, opposite Orange turn-off. Comment
  OBI12363  Malacothamnus fasciculatus var. laxiflorus Robert F. Hoover 1968-6-10 11172 Orange Laguna Beach Comment
  RSA549991  Malacothamnus fasciculatus var. laxiflorus Scott D. White 1992-9-23 851 -a Orange Vicinity of Olinda, near city of Brea, immediately N of Carbon Cyn Rd & E of Placentia Ave.; ca. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  UCR106283  Malacothrix saxatilis var. tenuifolia B. G. Pitzer, M. Georgiady 1997-4-5 3076 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
  UCR247892  Malacothrix saxatilis var. tenuifolia Fred M. Roberts 2012-7-18 7661 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, along Buck Gully Trail, about 0.7 km from the north terminus of Poppy Street and 1.8 km WNW summit of Pelican Hill 52 Comment
  CDA25903  Malephora crocea Mark A. Elvin, D. G. Kelch 2006-12-9 5297 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  IRVC25416  Malephora crocea Fred M. Roberts, Wayne Ferren 1987-4-8 3355 Orange Upper Newport Back Bay, west side, North Star Beach, 0.8km N Coney Island, Newport Beach 0 Comment
  RSA48858  Malephora crocea J. C. Roos 1949-10-1 4687 Orange Doheney Beach. [Now Capistrano Beach] Comment
  IRVC23145  Malosma laurina Fred M. Roberts 1985-7-11 2027 Orange San Joaquin Hills: Laguna Canyon, Laguna Canyon Road near Laguna Lakes, 5.0km ENE Signal Peak. southern coastal 112 Comment
  RSA542520  Malosma laurina Fred M. Roberts, R. Fisher 1986-6-18 3018 Orange Irvine: Lower Shady Canyon, east slope, ca 2.6 km SE French Hill. 91 Comment
  SEINET10870270  Malosma laurina Charlene A. Bennett 1976-7-21 Bennett 435 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  RSA716498  Malva nicaeensis Fred M. Roberts 2005-5-13 6189 Orange San Juan Capistrano; Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  UC1929557  Malva nicaeensis Scott D. White, Justin Wood 2008-4-22 11907 Orange Chino Hills: Telegraph Canyon Road, E of Carbon Canyon Regional Park. Comment
  UCSB41834  Malva parviflora MacKay, Shelley 1971-4-1 Orange On the CSF campus, along the side of the concrete 41 Comment
  POM2953  Malvella leprosa P. A. Munz 1918-5-4 2205 Orange Laguna Lakes, Laguna. Comment
  UC729853  Malvella leprosa Carl B. Wolf 1932-7-7 3855 Orange Bryant Ave., 0.1 mi. e. of Los Alamitos Blvd., 0.1 mi. e. of n.w. corner of SE 160 of Sect. 30 Bryant Ranch Comment
  RSA441225  Marah macrocarpa M. B. Dunkle 1931-2-19 3839 Orange San Juan Canyon Comment
  UCSB47970  Marah macrocarpa Roberts, Jr., Fred 1980-2-17 Orange Dana bluffs along Scenic Drive Road, northwest of and above Dana Point Harbor, Dana Point 58 Comment
  RSA801986  Marah macrocarpa var. macrocarpa Minor Warne 1934-2-1 s.n. Orange Santiago Canyon 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
  RSA184100  Marrubium vulgare I. L. Wiggins 1965-11-6 20347 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  RSA697834  Marrubium vulgare Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  UCSB12635  Marrubium vulgare Whittington, M. 1962-4-20 Orange South side of Back Newport Bay about .5 miles south of salt works, Newport Comment
  UCD170385  Marsilea drummondii R. E. Riefner Jr. 2008-6-22 08- 209 Orange City of Yorba Linda, Santa Ana Canyon, Santa Ana River, La Palma Ave. near Old Village Road. 95 Comment
  UCR232928  Marsilea drummondii R. E. Riefner Jr. 2008-7-20 08- 243 Orange South Coast, city of Irvine, San Diego Creek at West Yale Loop Road Comment
  CAS-BOT-BC67807  Marsilea vestita Arthur Haupt 1935-4-12 s.n. Orange Costa Mesa Comment
  POM900  Marsilea vestita D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  CAS-BOT-BC348163  Matricaria discoidea Ira L. Wiggins 1966-3-22 20553 Orange Silverado Canyon about 1/2 mi. below entrance to Cleveland National Forest Comment
  CAS-BOT-BC348166  Matricaria discoidea Ira L. Wiggins 1966-4-22 20615 Orange Along Associated Road between Yorba Linda Boulevard and Imperial Highway Comment
  UCR48188  Matricaria matricarioides R. F. Thorne 1975-4-6 45566 Orange San Joaquin Marsh: near Irvine and coast Comment
  RSA923  Matricaria matricarioides J. T. Howell 1928-2-7 822 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  CDA6380  Mazus japonicus W. Humphrey 1973-7-19 Orange 7231 Irvine Boulevard, Santa Ana. 0 Comment
  CDA6381  Mazus japonicus G. D. Barbe 1973-7-9 1694 Orange Bordier s Nursery, 7231 Irvine Boulevard, Santa Ana (Tustin). 0 Comment
  UCSB52896  Meconella denticulata Roberts, Fred; Allen, R. 1983-4-10 Orange Santa Ana Mts; Upper Hot Springs Canyon; 3.1km WSW Falcon Group Camp; 2.5 km S Los Pinos Peak 790 Comment
  RSA732050  Medicago A. C. Sanders, Fred M. Roberts 2008-4-8 34739 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
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Oct 19 2016
  IRVC2374  Medicago polymorpha D. Van Gorden 1965-5-9 s.n. Orange Silverado Canyon. Santa Ana Mountains; 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
  SD168149  Medicago polymorpha J. B. Anderson 1966-4-16 581 Orange Corona Del Mar; Buck Gully-Little Corona Beach. Comment
  UCSB48053  Medicago polymorpha 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 100 Comment
  RSA746481  Medicago rigidula R. E. Riefner Jr. 2008-5-22 08 -120 Orange Unincorporated land between the Cities of Lake Forest nd Rancho Santa Margarita, El Toro Rd., near Meadow Ridge Dr. 362 Comment
  RSA398  Medicago sativa J. T. Howell 1927-7-27 498 Orange Near ranch, Rancho Santa Ana 152 Comment
  RSA746473  Medicago truncatula R. E. Riefner Jr. 2007-4-12 07 -178 Orange City of Orange, SW portion of Irvine Regional Park; Irvine Park Rd. 188 Comment
  RSA746479  Medicago truncatula R. E. Riefner Jr. 2007-4-1 07 -166 Orange City of Laguna Niguel, Laguna Niguel Regional Park, general vicinity of La Paz Rd. at Aliso Creek. 70 Comment
  UCR186422  Melaleuca elliptica Robert DeRuff 2001-4-11 526 Orange Southern Coast, Newport Beach, Newport Back Bay, Shellmaker Island 1 Comment
  CAS-BOT-BC271187  Melica Helen D. Geis 1902-1-1 555 Orange Hill near Santa Ana Comment
  RSA697761  Melica imperfecta Aileen Adams 1932-4-29 s.n. Orange Slope above dam. [Orange Co.?] Comment
  RSA699156  Melica imperfecta Rankin s.n. Orange Silverado Comment
  IRVC2403  Melilotus albus Janet Morgan 1965-3-22 s.n. Orange San Clemente; Elmore Ranch. Southern Coastal Comment
  RSA730996  Melilotus albus Fred M. Roberts 2006-11-15 6470 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  RSA699735  Melilotus albus Keith E. Hoffmaster 1927-2-12 s.n. Orange Santa Ana. Comment
  IRVC23315  Melilotus indicus Fred M. Roberts 1985-7-23 2067 Orange Irvine; San Diego Creek between E Yale Loop and Jeffrey Rd. Southern Coastal 35 Comment
  IRVC2413  Melilotus indicus Kathy Durica 1965-4-25 s.n. Orange Silverado Canyon Santa Ana Mountains Comment
  IRVC2418  Melilotus indicus Bruce Reynolds 1965-4-20 s.n. Orange Newport Beach; Balboa Island, 115 Amethyst Ave. Southern Coastal Comment
  OBI7999  Melilotus indicus Kurt R. Neisess 1975-12-19 s.n. Orange Yorba Linda 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
  RSA734339  Melilotus indicus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34636 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  UCR192468  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-3-25 34536 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR241902  Melilotus indicus Fred M. Roberts 2012-4-24 7520 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  SEINET3828309  Melinis repens R. E. Riefner Jr. 2011-1 11 -98 Orange Fuel modification areas. Newport Beach, Orange County Parks & Recreation lands, along Newport Coast Drive, between Vista Ridge& Alteza Rd. 281 Comment
  RSA16494  Mentzelia dispersa Percy C. Everett 1935-6-18 7213 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  RSA539392  Mentzelia dispersa Fred M. Roberts, Carol A. Roberts 1988-6-9 4071 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Peak, west slope, 0.5 km NNW summit. 1417 Comment
  RSA539391  Mentzelia micrantha Fred M. Roberts, Carol A. Roberts 1988-6-9 4072 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Peak, west slope, 0.5 km NNW summit. 1417 Comment
  RSA734654  Mentzelia micrantha A. C. Sanders, Fred M. Roberts, A. O Neal, D. E. Bramlet 2008-5-9 35313 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  UCR203876  Mentzelia micrantha R. E. Riefner Jr. 2007-6-11 07- 252 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, upper Fremont Canyon, Donaldson Ranch area 382 Comment
  RSA5811  Mesembryanthemum crystallinum C. B. Wolf 1932-6-28 3771 Orange Along western half of no. boundary of 40 acre Valencia Orange grove at Bryant Ave. and Hansen Road. 9 Comment
  UCR3313  Mesembryanthemum crystallinum Cary Brown 1964-3-28 28364- 01 Orange South Coast, Hwy 101 alternate, 1 mile north of San Clemente 6 Comment
  RSA18530  Mesembryanthemum crystallinum C. B. Wolf 1927-7-23 667 Orange Along the coast just north of San Clemente. Comment
  RSA234539  Mesembryanthemum crystallinum James Henrickson 1970-7-24 4982 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  UCR3314  Mesembryanthemum nodiflorum Cary Brown 1964-3-28 28364- 04 Orange South Coast, Hwy 101 alternate, 1 mile north of San Clemente 6 Comment
  UCR177441  Micropus californicus Scott D. White, Amanda Duchardt 2003-3-27 8860 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  RSA773500  Micropus californicus var. californicus Fred M. Roberts 1999-5-14 5220 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon, 0.7 km NW Bolero Spring and 2.6 km SW Silverado School 502 Comment
  UCR119310  Micropus californicus var. californicus R. E. Riefner Jr. 2000-4-27 20- 387 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running south from Baker Canyon Road to Silverado Road 335 Comment
  RSA708226  Microseris douglasii subsp. platycarpha Fred M. Roberts, Robert L. Allen, Chris M. Barnhill, Carol A. Roberts 2005-4-10 6167 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  RSA625808  Microseris heterocarpa Scott D. White 1998-4-24 6347 Orange Mission Viejo Area: Aliso Creek watershed, E of El Toro Rd. just N of jct. w/ Valley Vista Wy. Large proposed subdivision called Saddleback Meadow. 305 Comment
  RSA749295  Microseris heterocarpa Fred M. Roberts, Linda Farley 2008-3-28 6817 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
  JEPS10278  Mimulus Lawrence M. Booth 1932-7-27 1322 Orange Newport Bay Comment
  UC1294008  Mimulus E. K. Balls 1958-6-27 23729 Orange road from Silverado Canyon to Santiago Peak (3.8 mi from gate) 975 Comment
  UC445115  Mimulus H. M. Hall 1913-5-28 9405 Orange Santiago Canyon Comment
  RSA678722  Mimulus aurantiacus Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5853 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive. 76 Comment
  UCR191245  Mimulus aurantiacus A. C. Sanders 2008-4-29 35134 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
  CLARK-A1528-858  Mimulus aurantiacus subsp. australis Jim Hearne, Geoffrey Matthews, Robin Maetche 1971-5-15 Orange Santa Ana Mountains Comment
  POM311164  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-9 1909 -F&G Orange North slope Laguna Canyon ca. 4 mi. east of Laguna Beach. Comment
  RSA443831  Mimulus aurantiacus var. pubescens Gordon Marsh, K. G. Marsh 1978-5-13 s.n. Orange S end of W portion of Coal Canyon at Main Divide Rd. 707 Comment
  RSA448177  Mimulus aurantiacus var. pubescens Albert J. Perkins 1920-6-12 s.n. Orange Corona del Mar Comment
  RSA551154  Mimulus aurantiacus var. pubescens David M. Thompson 1992-5-16 1068 Orange 0.6 mi. SW of San Bernardino Co. line along Carbon Canyon Rd. (Hwy 142). 229 Comment
  RSA442701  Mimulus aurantiacus var. puniceus T. W. Minthorn 1913-4-26 s.n. Orange Santiago Creek. 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
  UCR140800  Mimulus aurantiacus var. puniceus Robin G. Marushia 2004-4-16 001 Orange Southern Coast, El Moro Canyon, Crystal Cove State Park, Laguna Beach; grassy ridge southwest of No Name Ridge road in park, downhill from pullout and below closed road to park entrance 244 Comment
  RSA698961  Mimulus brevipes Dorothy Sammis s.n. Orange Silverado Canyon Comment
  UC1012125  Mimulus brevipes F. W. Pennell and Carl Epling 1940-4-21 25148 Orange 5 mi e San Luis Capistrano (Route 74) 60 Comment
  RSA21062  Mimulus cardinalis Ramon Valverde 1938-8-4 9442 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  SEINET11262502  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 (El Toro 7.5' Q.).; 0 360 Comment
  SEINET7908927  Mimulus cardinalis G. A. Klue 1972-1 Orange Silverado Canyon 610 Comment
  RSA588708  Mimulus clevelandii Fred M. Roberts 1990-5-22 4642 Orange Santa Ana Mts. East Fork Upper Long Canyon, along Maine Divide Truck Trail Extension, 4.1km E Los Pinos Peak 954 Comment
Read comments
Dec 5 2011
  UCSB47991  Mimulus floribundus Roberts, Fred 1980-7-7 Orange Santa Ana Mtns; San Juan Cyn; Hwy 74; 2.3km ENE San Juan Guard Station; 0.4km W Bench Mark 1100 315 Comment
  RSA698953  Mimulus guttatus J. R. Bruff 1930-10 19 Orange Santa Ana River Bed. Comment
  UCR174021  Mimulus guttatus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33012 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
  RSA0045513  Mimulus guttatus Keith E. Hoffmaster 1935-4-14 928 Orange Trabuco creek, 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. PR 8. Comment
  RSA719  Mimulus pilosus J. T. Howell 1927-7-27 491 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA539424  Minuartia douglasii Fred M. Roberts, Carol A. Roberts 1988-6-9 4084 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit. 1542 Comment
  IRVC25444  Minuartia douglasii var. douglasii Fred M. Roberts 1987-5-9 3432 Orange San Juan Trail above Chiquito Basin, 2.3km SSE Los Pinos Peak, Santa Ana Mountains 952 Comment
  SEINET11941950  Mirabilis californica J. F. Bright, Wyman, C. 1933-1 8104 Orange In Santa Ana Foothills Comment
  HSC16150  Mirabilis laevis J. W. Johnson 1961-3-29 Orange Newport Beach, on S side of upper Newport Bay Comment
  RSA276  Mirabilis laevis var. crassifolia J. T. Howell 1927-6-21 176 Orange Near ranch houses, Rancho Santa Ana. 152 Comment
  SEINET3161558  Mirabilis laevis var. crassifolia W. B. Crockatt sn Orange Capistrano Valley 76 Comment
  UCR267183  Mirabilis laevis var. crassifolia Fred M. Roberts 2010-3-12 7178 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
  CAS-BOT-BC219927  Monardella breweri subsp. lanceolata L. R. Abrams 1901-7-13 1788 Orange San Joaquin Hills Comment
  SEINET892767  Monardella breweri subsp. lanceolata P. C. Everett 1935-1 7238 Orange Santa Ana Mts., Trabuco Canyon, 1 3/4 mi. below summit of truck trail 975 Comment
  UCSB52887  Monardella breweri subsp. lanceolata Roberts, Fred 1983-9-26 Orange Santa Ana Mtns., Lion Canyon, Chiquito Basin Trail, 3.3km NNE Lower San Juan Picnic Ground 4.3km SSE Los Pinos Peak 810 Comment
  RSA0005454  Monardella hypoleuca P. A. Munz 1923-9-7 7742 Orange Trail Trabuco Canyon to Santago Peak 915 Comment
  SBBG127388  Monardella hypoleuca subsp. intermedia A. C. Sanders with F. M. Roberts 2008-7-3 35683 Orange Weir Cyn, off Windy Ridge Rd below saddle on ridge above the Eastern Transportation Corridor; Santa Ana Mtns 365 Comment
  UC284874  Monardella hypoleuca subsp. intermedia P. A. Munz 1923-9-7 7742 Orange along trail from Holy Jim Canyon to Santiago Peak; Santa Ana Mts 914 Comment
  RSA539414  Monardella macrantha subsp. hallii Fred M. Roberts, Carol A. Roberts 1988-6-9 4090 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Pk. west slope, 1.1 km SW summit. 1542 Comment
  UCR238207  Monardella stoneana Mark A. Elvin 2002-7-13 s.n. Orange Southern Coast, Irvine; UCI Arboretum 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
  RSA0010788  Morus alba Robt. Allen, Richard S. Newell, Roger E. Reinke 2006-6-30 s.n. Orange Holy Jim Canyon Trail. About 1.5 mile up trail from forest gate. 671 Comment
  CAS-BOT-BC263362  Muhlenbergia asperifolia John Thomas Howell 1927-7-21 2812 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  LA9673  Muhlenbergia microsperma LeRoy Abrams; 1903-4-18 3260 Orange near San Juan Capristrano Comment
  RSA682753  Muilla maritima Scott D. White, Amanda Duchardt 2003-3-27 8847 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  SEINET3402284  Muilla maritima L. Abrams 1903-4-18 3263 Orange Capistrano Comment
  UCR239648  Myoporum Fred M. Roberts 2012-5-9 7551 Orange Santa Ana Mountains, Lake Forest, near Serrano Creek utility road, 0.3 m south-southwest of intersection of Commercentre and Dimension Drives 206 Comment
  UCR237840  Myoporum laetum Mark A. Elvin 2003-2-2 2269 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  CAS-BOT-BC456169  Najas guadalupensis Street; Williams 1919-5-4 2688 Orange Laguna Beach Region. Laguna Lakes Comment
  POM202029  Nama stenocarpa L. M. Booth 1932-7-1 1235 Orange Anaheim Marsh Comment
  UC1607973  Nama stenocarpa Donald G. Nelson 1936-7-26 441 Orange on the mesa n of Newport Beach Costa Mesa (Costa Mesa) Comment
  RSA184087  Nassella lepida I. L. Wiggins 1966-3-2 20487 Orange Roadside, carbon Canyon 1.5 miles above the dam, Orange County Comment
  RSA263717  Nassella lepida E. W. Lathrop 1966-4-18 6179 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA732150  Nassella lepida A. C. Sanders, Fred M. Roberts 2008-4-22 35015 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir. 213 Comment
  UCSB47946  Nassella lepida Roberts, Dar 1980-5-3 Orange Roadside 111 on hwy. 74 340 Comment
  SEINET6854814  Nassella lepida Fred M. Reed 1929-7-10 s.n. Orange Laguna Beach. Comment
  UCSB48062  Nassella pulchra Fritzke, Sue; Roberts, Fred 1982-4-2 Orange Laguna Niguel; 3.5 km ESE of Aliso Peak; 3.2 km SSE of Alicia Fire Station 100 Comment
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Feb 5 2015
  RSA330  Nasturtium officinale J. T. Howell 1927-7-15 404 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  UCSB48129  Nasturtium officinale Roberts, Jr., Fred 1981-4-12 Orange Santa Ana Mountains; San Juan Canyon, Hwy. 74, 1.3 km. by road E San Juan Guard Station; 0.9 km. SE Juan Rancho Survey Mark 295 Comment
  RSA0037244  Nasturtium officinale Keith E. Hoffmaster 1927-6-13 s.n. Orange Santa Ana. Comment
  RSA697464  Nasturtium officinale Snow 1929-3-18 38 Orange Santa Ana River. Comment
  UCSB57134  Nasturtium officinale Marsh, G. 1975-7-28 Orange Huntington Beach; East Garden Grove-Wintersburg Flood Control Channel (no.C05); stream bank just N of Warner St. bridge crossing Comment
  RSA592109  Navarretia atractyloides R. E. Riefner 1994-4-15 94 -338 Orange NE of Moulton Meadow Park, Nyes Place Road, City of Laguna Beach. Comment
  RSA759149  Navarretia atractyloides Robt. Allen, D. Taylor 2008-7-19 s.n. Orange Along North Main Divide Road, 0.2 road miles S of junction with Bedford Rd, 3.5 road miles N of junction with Maple Springs Road, 0.84 air miles WNW of Bald Peak. Labeled on USGS Topo map as Water Tank, near BM 3702. 1142 Comment
  RSA468366  Navarretia prostrata Anstruther Davidson 1890-05 s.n. Orange Laguna Beach. Comment
  RSA756067  Nemacaulis denudata var. denudata O. F. Clarke 2004-7-19 s.n. Orange Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  RSA734280  Nemacladus ramosissimus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34643 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  RSA721840  Nemophila aurita Unspecified s.n. Orange Orange County park. Comment
  RSA704834  Nemophila menziesii Francis Battey s.n. Orange Laguna Hills. Comment
  RSA421357  Nemophila menziesii M. B. Dunkle 1935-2-10 4329 Orange El Toro. Comment
  RSA749469  Nemophila menziesii subsp. menziesii Fred M. Roberts 1999-4-22 5189 Orange Lomas de Santiago: tributary to Santiago Creek wash along spur road on ridge between Limestone Cyn. and Santiago Creek wash opposite Williams Cyn., 1.8 km SE Silverado Sch. and 2.3 km NNW Bolero Lookout. 396 Comment
  POM347132  Nemophila menziesii var. integrifolia Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. Comment
  RSA699273  Nemophila menziesii var. integrifolia Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  IRVC148  Nephrolepis cordifolia Lorraine Aldis 1965-3-30 HS 542 Orange Costa Mesa; Senate Street. Southern Coastal Comment
  RSA17173  Nicotiana bigelovii var. wallacei Percy C. Everett 1935-6-28 7259 Orange 8/10 of a mi. east of Atwood. S. side of R. R. tracks. 1067 Comment
  UC424185  Nicotiana clevelandii Philip A. Munz 1923-4-4 Orange Laguna Beach Comment
  UC566776  Nicotiana clevelandii Herbert L. Mason 1926-4-25 2929 Orange 5 mi s Laguna (sea cliffs) Comment
  HSC21283  Nicotiana glauca D. W. Snell 1964-3-24 10 Orange 1 mi. E of Brea, N of Birch St. 120 Comment
  UCD126652  Nicotiana glauca E. Frost 1996-5-11 18 Orange Newport Back Bay, 35 yards in along bike path. 7 Comment
  RSA232073  Nolina cismontana C. W. Tilforth 1972-8-20 623 Orange Along County Rd. S19, between Cooks corner and O Neil Park Comment
  RSA594888  Nolina cismontana Fred M. Roberts 1992-6-21 4845 Orange Mission Viejo; Planning Area 10, ridge east o f English Creek and west of Vista del Lago Dr., 5.3 km ENE El Toro fire Station. 293 Comment
  RSA615785  Nolina cismontana James C. Dice, Oberbauer 1986-5-3 651 Orange 0.2 km west of Trabuco Canyon. 365 Comment
  RSA725582  Nolina cismontana Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6532 Orange dirt road along ridge between Black Star and Fremont Canyons, 4.4km ENE Irvine Lake spillway and 2.4km WSW Hidden Ranch. 662 Comment
  UCR61531  Nolina cismontana James C. Dice 1986-5-31 s.n. Orange Mission Viejo, 1.2 km NW of Lake Mission Viejo, along SW edge of Vista delLago just west of the intersection w/ Canaveras 275 Comment
  RSA734216  Nolina parryi Keith E. Hoffmaster 1936-5-3 726 Orange Live Oak Canyon, Santa Ana Mts Comment
  UCR189550  Nyctocereus serpentinus Fred M. Roberts, R. L. Allen 2007-9-28 6615 Orange Santa Ana Mountains, Silverado Canyon, along Silverado Canyon Rd. at eastern edge of town of Silverado 347 Comment
  RSA718962  Oenothera elata Fred M. Roberts, Robert L. Allen 2006-10-8 6418 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
  RSA38442  Oenothera elata subsp. hirsutissima P. A. Munz 1947-9-10 12133 Orange Edge of garden in rover nottom, Rancho Santa Ana, Santa Ana River Canyon. 122 Comment
  RSA698244  Oenothera elata subsp. hirsutissima J. R. Bruff 1930-10 16 Orange Santa Ana River Bed. Comment
  POM225241  Oenothera elata subsp. hirsutissima P. A. Munz 1936-6-30 14173 Orange 5 miles south of Garden Grove. Comment
  RSA355662  Oenothera elata subsp. hirsutissima Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. Comment
  RSA783221  Oenothera micrantha J. D. Olmsted 1959-5-1 516 Orange 3/4 miles west of Oat Flat along old road from Main Divide Motorway into Sierra Canyon 777 Comment
  UCR197687  Olea europaea A. C. Sanders, Fred M. Roberts 2008-9-18 36081 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  CAS-BOT-BC56859  Opuntia X occidentalis B. D. Stark 1933-1-21 4519 Orange Field redacted by CAS, contact the data manager for more information 60 Comment
  POM284061  Opuntia X occidentalis Lyman Benson 1955-10-17 15595 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  POM317772  Opuntia X occidentalis David Walkington 1963-5-17 171 Orange Above intersection of Dana Cove Park rd. and Green Lantern Dr., continuous slope with Dana Cove Park Rd. Dana Point. 61 Comment
  OBI7085  Opuntia X vaseyi Pinkava & McLeod, McLeod 1971-5-9 M 446 Orange El Modeno saddle at E end of hill Comment
  POM285345B  Opuntia littoralis Lyman Benson 1955-10-17 15600 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 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
  UCR41053  Opuntia littoralis M. G. McLeod, D. L. Walkington, D. J. Pinkava, G. B. Smith 1971-5-9 445 Orange El Modena along ridge road Comment
  RSA459611  Opuntia littoralis var. austrocalifornica M. B. Dunkle 1933-5-30 3583 Orange Santa Ana River Canyon Comment
  RSA6668  Opuntia oricola B. D. Stark 1933-1-17 4518 Orange 5 miles north of Laguna Beach on road to Irvine. 152 Comment
  POM285342  Opuntia prolifera Lyman Benson 1955-10-17 15594 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  CAS-BOT-BC58075  Opuntia vaseyi John Thomas Howell 1927-6-22 2574 Orange Field redacted by CAS, contact the data manager for more information 152 Comment
  POM317768  Opuntia vaseyi David Walkington 1963-5-17 169 Orange Above intersection of Dana Cove Park rd. and Green Lantern Dr., continuous slope with Dana Cove Park Rd. Dana Point. 61 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
  RSA542379  Orthocarpus purpurascens Fred M. Roberts Jr. 1987-4-21 3387 Orange Aliso Viejo: Aliso Creek, Aliso Creek bike Trail. 3.0 km ENE Moulton Peak. 73 Comment
  POM7995  Orthocarpus purpurascens var. pallidus C. F. Baker 1904-4-1 4132 Orange Anaheim. Comment
  CAS-BOT-BC355767  Osmadenia tenella D. E. Bramlet 2008-4-15 4178 Orange Foothills of the Santa Ana Mtns.: Hicks Cyn., 301m E Haul Rd, & 1.4km N of the Bee Cyn Access Rd. 206 Comment
  CAS-BOT-BC355779  Osmadenia tenella Herbert L. Mason 1925-4-25 2903 Orange 5 miles south of Laguna Comment
  CAS-BOT-BC355782  Osmadenia tenella H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  JEPS38558  Osmadenia tenella H. L. Mason 1926-4-25 Orange Laguna Comment
  CAS-BOT-BC355781  Osmadenia tenella D. L. Crawford 1916-5-10 s.n. Orange Laguna Beach Region. Laguna Mts Comment
  HSC46609  Osmorhiza brachypoda Christopher Davidson 1977-5-18 5609 Orange Santa Ana Mts. Cleveland Nat. Forest. Santiago Peak (on Orange-Riverside Co. line). 1707 Comment
  RSA221029  Osmorhiza brachypoda E. W. Lathrop 1966-3-23 6108 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  UCR76185  Osmorhiza brachypoda B. G. Pitzer, Stu Hemstreet 1992-5-27 1951 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, along Forest Service Road 3S04 to Blue Jay Group Campground, off Hwy 74 (Ortega Hwy), c. 2 mi west of El Cariso Campground 765 Comment
  SD255070  Osmorhiza brachypoda R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49790 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UCSC001473  Osmorhiza brachypoda Peter Kamb 1948-6-19 1087 Orange Holy Jim Canyon, Santa Ana Mts 610 Comment
  SEINET10875322  Osteospermum ecklonis David B. Dunn Dunn 22404 Orange Collected around the condominium-Pacific Island Estates in Laguna Niguel area. 30 Comment
  RSA782192  Osteospermum fruticosum Mark A. Elvin 2003-2-23 2315 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  UCR230239  Oxalis albicans subsp. pilosa Dick Newell, Don Millar 2011-3-15 086 Orange Peninsular Range; Santa Ana Mtns., MWD Road, east of Outdoor Education Center, 1.8 miles NW (312 deg. ) of Irvine Lake dam 239 Comment
  UCSB3548  Oxalis californica Kamb, Peter 1948-6-19 Orange Holy Jim Canyon, Santa Ana Mtns. 609 Comment
  UCSB48385  Oxalis californica Roberts, Fred 1982-4-18 Orange San Juan Canyon, Hwy 74, 0.6km SW Lower San Juan Picnic Ground; 1.9km WNW Sitton Peak, Santa Ana Mtns. 420 Comment
  RSA303  Paeonia californica J. T. Howell 1927-6-6 50 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC389660  Panicum coloratum R. E. Riefner, Jr. 2014-7-6 14 -218 Orange City of Los Alamitos, along Los Alamitos Channel, E of 605 Fwy., N of Katella Ave., S of Coyote Creek, NE of Oak Academy Park, vicinity of Adobe Dr. and Acorn Ln. 11 Comment
  UCR193839  Panicum miliaceum A. C. Sanders, Fred M. Roberts 2008-7-16 35865 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  POM12439  Paspalum distichum P. A. Munz 1922-9-2 6352 Orange Ponds in Laguna Canyon 46 Comment
  POM364360  Paspalum distichum Albert J. Perkins 1912-10-15 s.n. Orange Peatlands near head Newport Bay. Comment
  POM603302  Paspalum distichum Le Roy Abrams 1901-06 1762 Orange Near Westminister Comment
  RSA765876  Paspalum distichum R. E. Riefner Jr. 2005-7-9 05 -544 Orange City of Mission Viejo, Oso Creek, ca. 0.5 mi N of Paseo De Colinas on Camino Capistrano. 86 Comment
  UCR192987  Paspalum distichum A. C. Sanders, Fred M. Roberts 2008-6-17 35499 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-BC353419  Paspalum vaginatum R. E. Riefner, Jr. 2013-12-12 13 -375 Orange City of Dana Point, near Ritz-Carlton Hotel, Salt Creek Beach area 2 Comment
  SD218260  Paspalum vaginatum R. E. Riefner Jr., K. Campbell 2008-8-31 08 267 Orange City of Irvine, tidal portion of San Diego Creek, immediately easst of Highway 73 overpass. 0 Comment
  UCR204900  Paspalum vaginatum R. E. Riefner Jr. 2005-7-9 05- 545 Orange South Coast, city of Mission Viejo, Oso Creek, c. 1.4 mi north of Paseo de Colinas on Camino Capistrano 88 Comment
  RSA0127410  Pectocarya linearis var. ferocula Fred M. Roberts 2016-3-17 8005 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  UCR191426  Pectocarya penicillata A. C. Sanders, Fred M. Roberts 2008-4-8 34777 B Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  RSA220953  Pedicularis densiflora E. W. Lathrop 1966-4-6 6142 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  SD247735  Pedicularis densiflora R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49711 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  JEPS117763  Pelargonium Mark A. Elvin 2005-5-14 4313 Orange Southern Coastal: UCI Arboretum. Comment
  RSA640077  Pellaea andromedifolia var. andromedifolia E. Robinson, Crocker 1916-3-29 s.n. Orange Santa Ana Mts. Miller's Canyon, near Murrietta. Comment
  RSA702806  Pellaea mucronata D. E. Bramlet, F. M. Roberts 2003-3-27 3359 Orange Donna O'Neill Reserve. 305m west of Cristianitos Rd. and 1.5km N of the E-W access road. 134 Comment
  IRVC3151  Pellaea mucronata var. mucronata A. S. Boughey 144 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  RSA631394  Pellaea mucronata var. mucronata Valerie L. Soza, LeRoy Gross 1999-6-7 477 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA758899  Pennisetum clandestinum A. C. Sanders, T. B. Salvato 2008-5-13 35350 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
  UCR193469  Pennisetum clandestinum A. C. Sanders, T. B. Salvato 2008-5-13 35350 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
  UCR182899  Pennisetum setaceum Dean Kelch 2006-12-9 06 .564 Orange Irvine. University Dr. along tidal Creek just east of I-73 9 Comment
  RSA0024926  Pennisetum villosum R. E. Riefner Jr. 2013-2-11 13 -41 Orange City of Laguna Beach, vicinity of Pacific Coast Highway and Montage Resort Dr. 30 Comment
  SEINET10299452  Penstemon centranthifolius Norman C. Cooper 1944-6-4 1351 Orange San Juan Canyon, Lower campground 457 Comment
  RSA708368  Penstemon grinnellii subsp. grinnellii Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6244 Orange Modjeska Peak, west slope along summit road, 0.15km by air W summit. 1613 Comment
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Sep 29 2007
  UCR97636  Penstemon heterophyllus var. heterophyllus George K. Helmkamp, E. A. Helmkamp 1997-4-24 1647 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 1.6 mi. SE of Ortega Hwy (Calif. Hwy 74) on Rd. 7-S14 549 Comment
  CAS-BOT-BC330488  Pentachaeta aurea Theodore Payne 1910-4-17 s.n. Orange El Toro, near the epot Comment
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Apr 24 2021
  RSA594885  Pentachaeta aurea Fred M. Roberts, Stadlander, Vizgirdas 1992-4-24 4840 Orange El Toro Marine Base: Mouth of Borrego Wash, 2.9 km SE Lambert Reservoir dam. 189 Comment
  UCSB52875  Pentachaeta aurea Roberts, Fred; Allen, R. 1983-3-27 Orange Dana Point Headlands; north of Dana Strand Rd., 0.5 km. W Dana Point Harbor; 0.7 km. SSW Richard Henry Dana School 79 Comment
  UC218598  Pentagramma viscosa I. M. Johnston 1918-5-4 1926 Orange hills back of Laguna Beach 152 Comment
  UCD116247  Peritoma arborea E. Frost 1996-5-11 11 Orange Newport Back Bay, 50 yards in along bike path. 7 Comment
  CAS-BOT-BC418841  Persicaria hydropiperoides John Thomas Howell 1927-7-5 2653 Orange Near Horseshoe Bend, Santa Ana River bottom, Santa Ana Canon [Canyon] 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
  POM201830  Petunia parviflora L. M. Booth 1932-12-16 1378 Orange Santa Ana River, near coast of Orange. Comment
  RSA626154  Petunia parviflora R. E. Riefner Jr. 1998-4-2 98 -245 Orange W of Talbot Park and NNE from Rte 1 and Prospect St. Comment
  UCR230840  Phacelia brachyloba Dick Newell, Judy Booth 2011-6-19 182 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, above Santiago Canyon 1086 Comment
  POM49691  Phacelia cicutaria var. hispida L. R. Abrams 1902-1 512 Orange Santiago Creek Canyon. Comment
  RSA263669  Phacelia cicutaria var. hispida E. W. Lathrop 1974-6-27 7430 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UC1280311  Phacelia cicutaria var. hispida John M. Tucker 1941-5-30 257 Orange roadside on Ortega Hwy 2-3 mi e western boundary of National Forest; Cleveland National Forest Comment
  UCR209379  Phacelia cicutaria var. hispida Fred M. Roberts, Linda Farley 2008-3-28 6820 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
  RSA708371  Phacelia curvipes Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6239 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 Comment
  RSA426058  Phacelia davidsonii M. B. Dunkle 1935-2-10 4334 Orange Laguna Creek; Coastal Southern California. 61 Comment
  RSA647939  Phacelia distans Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 39 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 244 Comment
  RSA699578  Phacelia distans Dorothy Sammis s.n. Orange Silverado Canyon Comment
  UC672414  Phacelia distans Herbert L. Mason 1926-4-25 2925 Orange 5 mi s Laguna Comment
  UCR224037  Phacelia distans Justin M. Wood 2010-3-31 1445 Orange Santa Ana Canyon, Santa Ana River floodplain, 0.25 mi north of Coal Canyon wildlife corridor, west of Green River Golf Course on bluff south of the river 122 Comment
  UCR224159  Phacelia distans Fred M. Roberts 2008-3-20 6789 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 60 Comment
  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
  RSA699144  Phacelia hispida R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  RSA697787  Phacelia hydrophylloides J. Russell Bruff 1937-7-3 847 Orange Kaiser Ridge above Huntington. Comment
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Nov 5 2020
  RSA2095  Phacelia imbricata subsp. bernardina E. R. Johnson 1931-6-1 2233 Orange Roundtop, Rancho Santa Ana. 457 Comment
  RSA627527  Phacelia parryi Sandy Leatherman, Fred M. Roberts, B. Leatherman, Trish Smith 1998-5-23 22 Orange Black Star Canyon: Spur Road off of Black Star Canyon Road. 335 Comment
  UCR193556  Phacelia ramosissima A. C. Sanders, Fred M. Roberts 2008-7-3 35665 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR239645  Phacelia ramosissima Fred M. Roberts 2012-5-9 7554 Orange Santa Ana Mountains, Lake Forest, along Serrano Creek hiking trail, 0.7 m south-southwest of intersection of Commercentre and Dimension Drives 152 Comment
  CAS-BOT-BC144974  Phacelia ramosissima var. austrolitoralis John Thomas Howell 1927-7-24 2825 Orange Floor of Claymine Canyon, northern Santa Ana Mts. 152 Comment
  JEPS1357  Phacelia ramosissima var. austrolitoralis Alice King Orange Newport Comment
  RSA657746  Phacelia ramosissima var. austrolitoralis Ken Greby 1985-5-17 31 Orange behind PG and E substation located 2 km. SE from Laguna Canyon Rd., on El Toro Rd., adjacent to Leisure World. Comment
  RSA759151  Phacelia suaveolens subsp. keckii Robt. Allen, Lori Whalen 2008-7-5 s.n. Orange Along Harding Canyon Truck Trail, on the ridgeline south of upper Harding Canyon. 1.55 air miles SW of Maple Springs Saddle - Harding Canyon USFS gate, 0.71 air miles due W of BM 5015 on Main Divide Road, W arm of Modjeska Peak., Survey point no. 38 1298 Comment
  SD119372  Phacelia suffrutescens Reid Moran 1977-6-13 24234 Orange Willow Canyon, tributary of Laguna Canyon, on shaded north slope. 124 Comment
  RSA697796  Phacelia tanacetifolia H. Dittmer 1932-4-6 s.n. Orange Vacant lot - Corner Chapman and Cambridge. Comment
  RSA610233  Phalaris lemmonii Fred M. Roberts, T. Bomkamp, R. Riefner 1996-4-19 4964 Orange Costa Mesa; Fairview Park, 0.1km W Canyon School 24 Comment
  RSA0127610  Phalaris minor Fred M. Roberts 2016-4-26 8041 Orange Lomas de Santiago: South of Santiago Canyon Road in tributary to Lower Presida Canyon just southwest of Irvine Lake, 2.2 km S Irvine Lake dam spillway and 0.6 km SW Irvine Lake Park. 265 Comment
  UCR102004  Phalaris minor B. G. Pitzer 1997-3-25 3038 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
  UCR217471  Phoenix canariensis Mark A. Elvin 2003-2-23 2318 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  LA205660  Pholistoma auritum var. auritum A. M. Johnson; 1934-4-15 4418 Orange Laguna Beach Comment
  UCR261684  Pholistoma auritum var. auritum Dick Newell, Don Millar 2015-3-24 392 Orange South Coast, San Joaquin Hills, on Willow Canyon Trail 0.2 mi. west of Laguna Coast Wilderness Park entrance off Laguna Canyon Rd. 88 Comment
  RSA750925  Phoradendron macrophyllum A. C. Sanders, Fred M. Roberts 2008-7-3 35699 Orange Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  RSA683970  Phyllospadix torreyi E. Yale Dawson 1956-12-2 15646 Orange Corona del Mar, Station no 9, 230-260 ft from shore base point Comment
  RSA684000  Phyllospadix torreyi N. C. Cooper 1942-11-8 2019 Orange Laguna Beach. Comment
  RSA684059  Phyllospadix torreyi E. Yale Dawson 1958-1-5 18105 Orange E side of Crystal Cove. Station no 42. 120 ft from shore base point. Comment
  UC1974774  Phyllospadix torreyi Alison Kendall 2003-5-20 Orange Crystal Cove Comment
  RSA23579  Physalis acutifolia E. R. Johnson 1939-9-8 9537 Orange Santa Ana Canyon, Rancho Santa Ana., in #2 Valencia Orange Grove. 122 Comment
  RSA38696  Physalis cinerascens E. L. Paddock 1943-9-23 s.n. Orange Kraemer Ranch, east of Yorba Linda, Comment
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Apr 23 2011
  RSA0127602  Physalis crassifolia Fred M. Roberts 2016-3-25 8032 Orange San Joaquin Hills: Bommer Canyon, west slope near south end fo Nature Loop Trail, 0.1 km NW Cattle Camp and 1.6 km NE summit of Signal Peak. 146 Comment
  RSA731932  Physalis philadelphica Fred M. Roberts, Sandra Leatherman 2007-11-27 6678 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. c.a. 0.3km S Fairmont Blvd. 118 Comment
  RSA79903  Physalis philadelphica F. W. Peirson 1924-10-19 5239 Orange Wintersberg Comment
  IRVC872  Picris echioides D. DeVault 1965-5-1 Orange Corona del Mar, Carnation Street. Newport Beach Comment
  UCR191217  Picris echioides A. C. Sanders 2008-4-29 35143 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
  RSA5826  Picris echioides C. B. Wolf 1932-6-28 3796 Orange Bryant Ranch, north boundary of field, N.E. corner of N-E 1/4 S.W. 1/4 sect 27 9 Comment
  CAS-BOT-BC73333  Pinus attenuata Carl B. Wolf 1934-12-21 6260 Orange N.E. of Sugarloaf Peak (Plesants Pk.), along Main St. Trail, Santa Ana Mts. 1158 Comment
  NY34631  Pinus attenuata C. B. Wolf 1934-12-21 6260 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA0027777  Pinus attenuata Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49694 Orange Northern Santa Ana Mountains: Sierra Peak 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
  RSA731000  Pinus sabiniana Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6501 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  RSA749312  Piperia cooperi Fred M. Roberts 1999-4-22 5193 Orange Lomas de Santiago: ridges between Limestone Cyn. and Santiago Creek wash opposite mouth Williams Cyn., 2.0 km SE Silverado Sch. and 2.2 km NNW Bolero Lookout. 400 Comment
  CAS-BOT-BC254389  Piptatherum miliaceum Ira L. Wiggins 1965-9-26 20256 Orange Along N margin of La Vida property, above the hot springs Comment
  SEINET5642647  Pittosporum tobira Shelby J. Wood 2013-3-9 9 Orange Huntington Beach, Central Park.; 0 Comment
  SD234854  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-3-25 34542 Orange Peninsular Range: Santa Ana Mountains: Weir Canyon, 4 mile ENE of Villa Park at SE edge of Anaheim Hills (Black Star Canyon 7.5' Q) 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
  RSA627747  Plagiobothrys collinus var. californicus Scott D. White 1998-3-18 6211 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
  UCSB52455  Plagiobothrys collinus var. californicus Fritzke, Sue; Roberts, Jr., 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 100 Comment
  RSA732238  Plagiobothrys nothofulvus A. C. Sanders, Fred M. Roberts 2008-4-22 35045 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  POM98152  Plagiobothrys nothofulvus P. A. Munz s.n. Orange Santa Ana Mountains, Silverado Canyon 549 Comment
  RSA0045608  Plagiobothrys nothofulvus Keith E. Hoffmaster 1935-3-17 555 Orange Near El Toro (Trabuco rd). Comment
  UC2030079  Plantago coronopus Valerie Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1121 a Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. Comment
  RSA590720  Plantago elongata subsp. pentasperma R. E. Riefner 1994-4-22 94 -337 Orange S 1.5 miles from Moulton Meadows Park, Nyes' Place Ave, Laguna Beach. Comment
  RSA401984A  Plantago erecta Albert J. Perkins 1921-04 s.n. Orange Mesa near Arch Beach, Santa Ana. Comment
  UC28039  Plantago erecta C. W. Hamlin 1820-1 10 Orange Buena Park Comment
  UCR209373  Plantago erecta Fred M. Roberts, Linda Farley 2008-3-28 6815 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
  RSA3165  Plantago erecta Carl B. Wolf 1932-3-8 2698 Orange Santiago Dam at W base of Santa Ana Mts. 305 Comment
  SD247682  Plantago erecta R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49669 Orange Northern Santa Ana Mountains: Coal Canyon (NW of Sierra Peak). Comment
  JEPS7123  Plantago lanceolata Lawrence M. Booth 1932-7-18 1266 Orange Costa Mesa Comment
  POM201755  Plantago lanceolata L. M. Booth 1932-7-18 1266 Orange Costa Mesa, Newport Bay Comment
  RSA698383  Plantago major Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  RSA764  Plantago major J. T. Howell 1927-7-18 433 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA760  Plantago ovata var. fastigiata J. T. Howell 1928-2-7 818 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA542455  Plantago rhodosperma Fred M. Roberts, Karlin G. Marsh 1988-4-25 3931 Orange San Joaquin Hills: East flank Pelican Hill, 0.9 kilometer SE summit. 120 Comment
  JEPS4909  Plantago subnuda Lawrence M. Booth 1932-6-17 1208 Orange Bolsas Creek Comment
  RSA0126618  Platanus X acerifolia Fred M. Roberts 2012-4-24 7495 Orange San Joaquin Hills: Buck Gully, W of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  RSA698371  Platanus racemosa Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  RSA698372  Platanus racemosa R. H. McArthur 1934-2-17 s.n. Orange Gypsum Canyon. Comment
  SD236359  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-6-17 35471 Orange Peninsular Range; Santa Ana Mountains: Lomas de Santiago, Agustine staging area near Limestone Canyon Road gate at Santiagon Cyn Rd. 259 Comment
  UCSB48123  Platanus racemosa Roberts, Fred 1981-4-11 Orange Highway 74; 5.2km E San Juan Capistrano, near crossing of San Juan Creek 52 Comment
  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
  UC2061635  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-3-18 07 -153 Orange City of Newport Beach, Dover Beach, Newport Bay, vicinity of Morning Star Ln. and Polaris Dr. Comment
  UC2061643  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08 -312 Orange City of Laguna Beach, vicinity of West St. and Pacific Coast Highway. Comment
  UCR229286  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-7-7 11- 88 Orange city of Dana Point, south of Mussel Cove, north of Salt Creek Beach Park 9 Comment
  UCR238457  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09- 151 Orange South Coast, city of Dana Point, beach near Salt Creek, vicinity of Ritz Carlton Resort 2.5 Comment
  RSA731530  Plecostachys serpyllifolia R. E. Riefner 2006-7-26 06 -319 Orange City of Irvine, along N side of Irvine Blvd. at SR 133 on-ramp. 62 Comment
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Dec 13 2012
  RSA790114  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-7-7 11 -73 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 5 Comment
  RSA151079  Pluchea odorata P. H. Raven 1961-10-15 16855 Orange Dyke along road to Yorba Linda just north of US Hwy 91 114 Comment
  RSA719408  Pluchea odorata Fred M. Roberts, Robert L. Allen 2006-10-8 6427 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
  RSA131096  Pluchea odorata E. K. Balls, E. R. Blakley 1958-10-15 23721 Orange In Narrow Canyon E oif Laguna Canyon, S side Santa Cruz Island. 5 Comment
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Jun 27 2013
  JEPS40448  Pluchea odorata var. odorata L. M. Booth 1932-7-19 1272 Orange Bolsa Chica; coastal Orange Co. Comment
  UC537028  Pluchea odorata var. odorata Lawrence M. Booth 1932-7-19 1272 Orange Bolsas Marsh Comment
  UCD134968  Pluchea odorata var. odorata A. C. Sanders 1990-10-6 10185 Orange Newport Bay, North Star County Beach area on the SW end of the bay, around 2 km inland of Highway 1. 1 Comment
  UC75889  Pluchea odorata var. odorata E. A. Jumbro 1902-1 381 Orange Comment
  CAS-BOT-BC326617  Pluchea sericea John Thomas Howell 1927-7-21 2815 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  LA203865  Pluchea sericea J. A. Ewan; 1932-7-9 7488 Orange Santa Ana River, 4 mi. below Rincon Comment
  RSA785323  Pluchea sericea Dick Newell, Don Millar 2010-4-27 020 Orange Lomas de Santiago, Agua Chinon wash 1/4 mile north of Hwy 241 toll road 226 Comment
  IRVC1787  Poa annua J. B. Anderson 1966-4-25 619 Orange Santa Ana: 20021 Birch Street. Southern Coastal Comment
  RSA0027436  Poa annua Fred M. Roberts 2012-7-18 7677 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
  RSA731925  Poa annua Fred M. Roberts, Sandy Leatherman 2007-11-27 6685 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  SD144113  Poa annua Scott D. White 1993-3-5 1115 Orange Tustin, Marine Corps Ait Stn: SE of Red Hill Ave and NE os Barranca, roadsides 14 Comment
  RSA699308  Poa pratensis Keith E. Hoffmaster 1927-5-30 33 Orange Santa Ana. Comment
  IRVC20648  Poa scabrella Charles W. Sexton 1973-3-29 s.n. Orange Newport Beach, Upper Newport Bay, hillside beside Back Bay Rd. Southern Coastal Comment
  IRVC24561  Poa secunda Fred M. Roberts 1986-4-11 2782 Orange San Juan Canyon, Hwy 74, 1.2km SSW Lower San Juan Picnic Ground, Santa Ana Mountains 378 Comment
  RSA731973  Poa secunda A. C. Sanders, Fred M. Roberts 2008-4-8 34764 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd 457 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
  UCR150913  Poa secunda subsp. secunda Valerie Soza, LeRoy Gross 1999-6-10 527 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1555 Comment
  UCSB57140  Poa secunda subsp. secunda Marsh, G.; Marsh, K. 1978-5-20 Orange Santa Ana Mts., NE portion of Coal Canyon 335 Comment
  SD152888  Polycarpon tetraphyllum Steve Boyd, Tim Ross 1992-5-19 7451 Orange Southern Santa Ana Mountains, western edge of the wilderness in Lucas Canyon at the Lucas Canyon Trail crossing. 320 Comment
  SEINET3086485 Image available Polycarpon tetraphyllum J. Harry Lehr 1975-5-10 1556 Orange Santa Ana Street W. of State College Blvd. Anaheim. Comment
  UCR146882  Polycarpon tetraphyllum Kathleen Stockwell 1999-5-30 s.n. Orange South Coast, north of Cristianitos Road, San Clemente 61 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
  CAS-BOT-BC167819  Polygala cornuta var. fishiae John Thomas Howell 1927-7-3 2640 Orange Claymine [Canon] Canyon, n. Santa Ana Mts. 304 Comment
  RSA561496  Polygala cornuta var. fishiae Steve Boyd, Kyle Boyd 1992-7-9 7654 Orange Northern Santa Ana Mountains, along the main crest of the range, north of Pleasants Peak and south of Oak Flat (aka Oat Flat), 1.5 miles south of junction of Main Divide and Skyline Roads. Comment
  RSA588890  Polygala cornuta var. fishiae Fred M. Roberts 1990-6-4 4664 Orange Santa Ana Mountains: Hall Canyon, 1.8 km NNW Mustang Spring at east edge of Flying B Ranch. 421 Comment
  RSA749041  Polygonum aviculare A. C. Sanders, Fred M. Roberts 2008-8-7 35972 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  UCR170138  Polygonum aviculare Jeffrey Ross, R. Zaka 1998-5-2 40 Orange South Coast, North side of San Joaquin Hills; William R. Mason Regional Park, near intersection of Yale Avenue and University Drive 27 Comment
  RSA666101  Polygonum aviculare subsp. aviculare Fred M. Roberts, Michelle Lee 2001-6-4 5485 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. (Canada Gobernadora. 226 Comment
  CDA21557  Polygonum lapathifolium A. Thomas, Mark A. Elvin 2006-9-23 609231 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
  UC536913  Polygonum lapathifolium Lawrence M. Booth 1932-7-30 1342 Orange Santa Ana River Comment
  RSA66319  Polygonum lapathifolium F. W. Peirson 1924-10-19 5233 Orange Wintersberg Comment
  RSA542467  Polygonum persicaria Fred M. Roberts, G. A. Marsh 1987-8-31 3593 Orange Santa Ana River: adjacent to Santa Ana at Mc Fadden crossing. 19 Comment
  RSA0062672  Polypodiaceae Doug Bell 1949-2-5 s.n. Orange Newport Beach. 6 Comment
  IRVC20324  Polypodium californicum Fred M. Roberts 1982-12-10 848 Orange Laguna Beach: Upper Park Canyon, west flank of Temple Hill, 1.8km NEof Thurston School, 0.8km WNW of Top of the World School. Southern Coastal 240 Comment
  IRVC20354  Polypodium californicum Fred M. Roberts 1983-3-10 880 Orange Dana Point headlands: south of old cove road on cliff at west margin of Dana Point Harbor; 0.8km s of Richard Henry Dana School. Southern Coastal 50 Comment
  RSA21  Polypodium californicum J. T. Howell 1928-2-7 810 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA698540  Polypodium californicum Jeanne Paxton 1934-2-25 s.n. Orange Sugar Loaf Canyon, Arch Beach Comment
  IRVC19905  Polypodium californicum Karlin G. Marsh 1983-6-27 Orange head of Bommer Canyon, Irvine Ranch; in a cave. San Joaquin Hills Comment
  IRVC21768  Polypodium californicum Fred M. Roberts, G. S. Pederson 1984-12-17 1444 Orange canyon, 2.5km NE Median Rancho Survey Mark; 1.4km NW Bench Mark 422, Wagon Wheel Regional Park 190 Comment
  RSA696613  Polypogon interruptus Rankin s.n. Orange Irvine Park Comment
  CAS-BOT-BC237265  Polypogon monspeliensis Peter H. Raven 1957-9-28 11375 Orange N limits of Surfside Comment
  IRVC8419  Polypogon monspeliensis J. B. Anderson 1966-4-22 607 Orange San Joaquin Hills: Los Trancos Canyon, along dirt road and near spring. Santa Ana Mountains 122 Comment
  RSA483352  Polypogon monspeliensis E. Crow 1929-4-7 294 Orange SE of Orange Co. Park; Santa Ana River. Comment
  RSA697713  Polypogon monspeliensis Anonymous s.n. Orange Near Orange Co. Park. 793 Comment
  UCD91234  Polypogon monspeliensis A. A. Beetle 1942-4-19 3101 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  UCR154339  Polypogon monspeliensis Mark A. Elvin 2004-5-2 3416 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR174022  Polypogon monspeliensis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33055 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
  UCR192978  Polypogon monspeliensis A. C. Sanders, Fred M. Roberts 2008-6-17 35466 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA0045355  Polypogon monspeliensis Keith E. Hoffmaster 1935-3-28 119 Orange West of Costa Mesa. Comment
  CAS-BOT-BC237508  Polypogon viridis Ira L. Wiggins 1965-11-6 20337 Orange Near railway right of way, W side of Atwood Comment
  UCSB48202  Polypogon viridis Roberts, Fred 1981-6-26 Orange Santa Ana Mts., San Juan Canyon, 0.1 km. N Lower San Juan Picnic Ground 390 Comment
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Jan 25 2021
  CAS-BOT-BC108544  Populus balsamifera R. E. Jr. Riefner 2006-4-8 06 -111 Orange South Coast: San Juan Capistrano (city), San Juan Creek at La Novia Ave. (San Juan Capistrano 7.5' Q.) 21 Comment
  UCR240176  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
  RSA5327  Populus fremontii B. D. Stark 1932-12-30 4468 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA731918  Populus fremontii subsp. fremontii Fred M. Roberts, Sandra Leatherman 2007-11-27 6661 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  RSA542355  Populus trichocarpa Fred M. Roberts Jr. 1987-5-12 3437 Orange Santa Ana River: Horseshoe Bend, 3.9km S San Juan Hill; 1.0km ENE Wier Canyon Road bridge. 104 Comment
  CLARK-A1528-2062  Porophyllum gracile John C. Roos 1937-5-10 2337 Orange San Juan Capistrano Comment
  JEPS34990  Porophyllum gracile John Thomas Howell 1927-7-28 2865 Orange Santa Ana Canyon, Rancho Santa Ana 152 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
  RSA85790  Potentilla anserina var. grandis F. W. Peirson 1924-10-19 5235 Orange Wintersberg Comment
  UCR193806  Potentilla glandulosa A. C. Sanders, Fred M. Roberts 2008-7-16 35828 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  RSA613774  Prunus caroliniana B. Pitzer, M. Georgiady 1997-4-5 3078 Orange San Joaquin Hills Crystal Cove State Park, along No Dogs Trail (from parking area, along western bottom edge of ridge between Muddy Canyon and Moro Canyon), to just below intersection with Poles trail 152 Comment
  RSA658197  Prunus ilicifolia T. A. Daubert 1991-5-19 648 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  POM202175  Pseudognaphalium biolettii L. M. Booth 1932-5-19 1067 Orange Newport Bay Comment
  SBBG103896  Pseudognaphalium biolettii B. Pitzer with S. Hemstreet 1992-5-21 1945 Orange State Hwy 74, 1 mi uphill from the 2000 ft marker, and to the left ca .1 mi on an old paved rd; Cleveland National Forest Comment
  UCR281521  Pseudognaphalium biolettii Mitch Provance 2017-6-9 617- 92 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  UCR106257  Pseudognaphalium californicum B. G. Pitzer 1996-4-30 2800 A Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 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-BC502070  Pseudognaphalium leucocephalum R. E. Riefner, Jr. 2015-12-9 15 -461 Orange Rancho Mission Viejo, E of San Juan Capistrano, San Juan Creek, W of Antonio Pkwy, N side of Ortega Hwy (Hwy 74), near bridge at Sendero Field Park 55 Comment
  UC484151  Pseudognaphalium leucocephalum J. T. Howell 1928-9-6 1208 Orange Rancho Santa Ana Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCR232932  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2011-10-19 11- 147 Orange South Coast, city of San Juan Capistrano, San Juan Creek, c. 0.2 mi west of intersection of Paseo Tirador and Calle Arroyo Street 31 Comment
  JEPS20500  Pseudognaphalium microcephalum Joseph Andorfer Ewan 1932-7-28 7702 Orange Corona del Mar Comment
  UCR114252  Pseudotsuga macrocarpa R. E. Riefner Jr. 2000-8-8 20- 717 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
  UCR132512  Psilotum nudum A. C. Sanders, Mark A. Elvin 2003-11-9 27356 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  IRVC27016  Psilotum nudum A. C. Sanders, Mark A. Elvin 2003-11-9 27356 Orange Irvine: UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. Southern Coastal 15 Comment
  JEPS57988  Pterostegia drymarioides Alice King 1908-4-18 Orange Santa Ana Mts. Comment
  POM8744  Pterostegia drymarioides P. A. Munz, R. D. Harwood 1920-4-20 3724 Orange Santa Ana Mountains: Silverado Canon 549 Comment
  RSA698489  Pterostegia drymarioides Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA698490  Pterostegia drymarioides R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  UC635044  Pterostegia drymarioides H. L. Mason 1926-4-25 2910 Orange coast 5 mi. s. Laguna Comment
  OBI59561  Pulicaria paludosa T. C. Fuller 1963-10-9 11362 Orange Santa Ana cyn, 0.1 mi S of riverside fwy to Anaheim, ca 2 mi W of the Riverside Co. line Comment
  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
  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
  RSA12361  Quercus X grandidentata E. R. Johnson 1934-1-6 5561 Orange Santa Ana Mts., on slopes of Sierra Peak at about the head of Claymine Canyon. 762 Comment
  RSA12362  Quercus X grandidentata E. R. Johnson 1934-1-6 5562 Orange Santa Ana Mts., on slopes of Sierra Peak at about the head of Claymine Canyon. 762 Comment
  IRVC1322  Quercus agrifolia A. S. Boughey 1965-3-9 4 Orange San Joaquin Hills. Southern Coastal Comment
  POM188843  Quercus agrifolia Marcus E. Jones 1931-3-23 28443 Orange Laguna. Comment
  RSA476854  Quercus agrifolia Claire Kibbe 1936-07 19954 Orange Santa Ana Canyon. Comment
  UC484237  Quercus agrifolia C. B. Wolf 1932-3-6 Orange 1.5 mi below Trabuco Oaks (on Trabuco Canyon Road, w slope Santa Ana Mts.); Santa Ana Mts. 304 Comment
  UCR174210  Quercus agrifolia A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33044 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA702202  Quercus agrifolia var. agrifolia Fred M. Roberts, David E. Bramlet 2003-6-20 5923 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  IRVC8572  Quercus berberidifolia A. S. Boughey, Pat Pembrook 1965-6-8 1013 Orange San Juaquin Hills; Los Trancos Cyn; fork at road bottom. Southern Coastal Comment
  RSA12734  Quercus berberidifolia E. R. Johnson 1933-11 5557 Orange Rancho Santa Ana. Comment
  RSA164  Quercus berberidifolia J. T. Howell 1927-6-16 143 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA588845  Quercus berberidifolia Fred M. Roberts 1989-11-7 4452 Orange Rancho Mission Viejo: TRW Lease Holding, ridge south of the confluence of Gabino and Blind Canyons, 5.0 km NE Clement Survey Market. 155 Comment
  RSA0041588  Quercus berberidifolia E. R. Johnson 1933-11 5558 Orange Rancho Santa Ana. Comment
  RSA697628  Quercus chrysolepis Leo Miller 1938-3-26 s.n. Orange Near top of Saddleback Mt. Comment
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Apr 26 2014
  IRVC24553  Quercus dumosa Fred M. Roberts, Gordon A. Marsh, Karlin G. Marsh 1988-4-26 3952 Orange San Joaquin Hills: Pelican Hill; E slope above Los Trancos Canyon; 0.4km ESE Pelican Hill survey mark; N-facing slope of sandstone ridge. Southern Coastal 200 Comment
  RSA550590  Quercus dumosa Fred M. Roberts, Marsh 1988-4-26 3952 Orange San Joaquin Hills, Pelican Hill, 0.4 km SW summit. 183 Comment
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Oct 16 2013
  UCD63655  Quercus dumosa Daniel Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel. Dana Point Highlands. Pacific Island Drive. 70 Comment
  SEINET12031055  Quercus dumosa S. A. Thompson, Rawlins, J. E. 1988-1 5259 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  RSA595702  Quercus engelmannii J. E. Harrison 1996-10-17 500 Orange Upper Coyote Canyon, San Joaquin Hills, just n of Signal Peak adjacent to S. side of San Joaquin Hills Transportation Corridor (SR-73). 250 Comment
  RSA644971  Quercus wislizeni var. frutescens R. E. Riefner Jr. 2000-4-13 2 -361 Orange NCCP North Ranch Policy Plan Area. Upper drainage of Fremont Canyon near National Forest boundary, S. of Claymore Mine. USGS 7.5' Quad: Black Star Canyon. 610 Comment
  RSA725579  Quercus wislizeni var. frutescens Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6535 Orange Along dirt road on ridge between Fremont and Black Star Cyns., 5.2km ENE Irvine Lake Spillway and 1.7km W Hidden Ranch. 739 Comment
  UCR144740  Quercus wislizeni var. frutescens Gordon Marsh, Karlin G. Marsh 1985-9-27 s.n. Orange Santa Ana Mtns., Pine Canyon, 4.1 km NW of Modjeska Peak 805 Comment
  RSA0015962  Ranunculus californicus Fred M. Roberts 2012-4-24 7531 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
  RSA0030882  Ranunculus cymbalaria subsp. saximontanus Helen D. Gris 1902-04 s.n. Orange Unspecified. Comment
  RSA542415  Ranunculus hebecarpus Fred M. Roberts, Karlin G. Marsh 1987-5-14 3447 Orange Upper Trabuco Canyon, Trabuco Canyon Trail, 2 km NNW Los Pinos Peak 856 Comment
  IRVC1150  Raphanus sativus R. Nesheim 1965-4-10 Orange Bayside Dr. near Balboa Island. Newport Beach Comment
  UCR217293  Raphanus sativus Mark A. Elvin 2003-1-26 2235 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  UC1121827  Rhamnus crocea A. Lewis Apr 1934 400 Orange near Arch Beach; Corona Quad. 182 Comment
  CAS-BOT-BC56026  Rhamnus ilicifolia P. C. Everett 1935-6-19 7242 Orange Santa Ana Mts., Trabuco Canyon, 2 mi. below Forest Service Patrol Station 365 Comment
  CHSC37638  Rhamnus ilicifolia T. B. Devine 1981-7-30 735 Orange Santiago Canyon Road, 1/4 mi W of its junction with Williams Canyon Road. 350 Comment
  OBI5868  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1841 Orange W sloep Santa Ana Mts, Trabuco cyn, 1/2 mi above Trabuco oaks 457 Comment
  OBI5938  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1845 Orange W slope Santa Ana mts, Trabuco cyn, 1/2 mi above Trabuco oaks 457 Comment
  RSA463  Rhamnus ilicifolia J. T. Howell 1927-7-24 465 Orange Claymine Canyon near Sierra Peak. 152 Comment
  RSA734987  Rhamnus ilicifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35297 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  SBBG27367  Rhamnus ilicifolia P. C. Everett 1935-6-17 Orange Coldwater Cyn, 0.5 mi above Glen Ivy Resort 457 Comment
  SBBG52716  Rhamnus ilicifolia C. Davidson 1977-5-18 5620 Orange Bear Springs, Santa Ana Mtns 121 Comment
  UC1121848  Rhamnus ilicifolia H. E. Norton 1931-3-6 364 Orange Corona Quad. Comment
  UCR229210  Rhamnus ilicifolia Dick Newell, Peter Wetzel 2011-6-28 198 Orange South Coast, San Joaquin Hills, Willow Canyon, Laguna Coastal Wilderness Park 89 Comment
  POM9767  Rhamnus ilicifolia P. A. Munz 1921-2-26 4681 Orange Brea Canyon. 305 Comment
  UCSB48075  Rhamnus ilicifolia Roberts, Fred 1981-4-11 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.4km ENE San Juan Guard Station; 0.3km W Bench Mark 1100 315 Comment
  UC484250  Rhus C. B. Wolf 1931-3-6 Orange 1 1/2 mi below Trabuco Camp grounds (Trabuco Canyon, w slope Santa Ana Mountains); Santa Ana Mountains 548 Comment
  IRVC15661  Rhus integrifolia A. S. Boughey, P. Pembrook 1965-7-16 1011 Orange Los Trancos Canyon, near spring, ; chaparral. San Joaquin Hills Comment
  RSA662185  Rhus integrifolia Giancarlo Massarotto 1981-5-2 42 Orange Property off the Pacific Coast Hwy. between Del Mar and Laguna Beach Canyon, S of Pelican Hill. Comment
  UCR193788A  Rhus laurina A. C. Sanders, Fred M. Roberts 2008-7-3 35685 Orange Peninsular Range; Santa Ana Mtns., upper Weir Canyon, along Windy Ridge Rd. at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  RSA696221  Rhus ovata Keith E. Hoffmaster 1936-5-3 s.n. Orange Santa Ana Mts (Santiago Peak) Comment
  SEINET5642638  Rhus ovata Shelby J. Wood 2013-3-6 6 Orange Laguna Hills.; 0 Comment
  SEINET6669779 Image available Rhus ovata T. C. Arambula 1966-1 35 Orange Silverado Canyon Comment
  UCSB41759  Rhus ovata Miller, Marsha 1965-1-15 Orange Trabuca Canyon road to lower camp ground Comment
  RSA16351  Rhus trilobata var. quinata Percy C. Everett 1935-6-18 7181 Orange Santa Ana Mountains. Main divide motorway to Santiago Peak, 1 mile from Ortega Highway. 732 Comment
  CAS-BOT-BC93073  Ribes californicum var. hesperium Carl B. Wolf 1930-1-30 1824 Orange Claymine Canyon, Santa Ana Mountains. 457 Comment
  RSA0027776  Ribes californicum var. hesperium Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49693 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA0024853  Ribes cereum Jeanne Paxton 1934-2-25 s.n. Orange Sugar Loaf Canyon, Arch Beach. Comment
  RSA0024855  Ribes cereum Minor Warne 1934-2-23 s.n. Orange Santiago Canyon. Comment
  CAS-BOT-BC173124  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
  CAS-BOT-BC173125  Ribes indecorum B. D. Stark 1930-2-21 1475 Orange Black Star Creek 457 Comment
  LA205443  Ribes indecorum W. Pequegnat; 1938-3-19 sn Orange Santa Ana Mountains, Holy Jim Canyon 1158 Comment
  IRVC14219  Ribes malvaceum Gordon A. Marsh, K. Conrey 1975-2-19 s.n. Orange Santa Ana Mtns: Skyline Dr, just beyond Beek's Place heading S, just inside Cleveland NF. Peninsular Ranges 915 Comment
  RSA0029942  Ribes malvaceum var. malvaceum Fred M. Roberts, Sandy Leatherman 2013-2-13 7722 Orange Santa Ana Mountains: Ridge south of central Santiago Canyon, near Joplin Trail, 3.7 km SE Modjeska (town). 800 Comment
  RSA184142  Ribes malvaceum var. viridifolium I. L. Wiggins 1966-2-4 20419 Orange Trabuco Canyon, about 1/2 mi. above canyon mouth Comment
  RSA441491  Ribes malvaceum var. viridifolium Lester H. Cushman 1932-3-5 s.n. 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
  UCR222393  Ribes malvaceum var. viridifolium Mark A. Elvin, Laura Soloro, Adam Sriro 2003-1-10 2219 Orange Peninsular Range; Santa Ana Mtns., c. 1.6 mi. west of Sierra Peak along road to powerlines, near Claymont Clay Mine 457 Comment
  UCSB47637  Ribes malvaceum var. viridifolium Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail; 0.2km west of Trabuco Peak; Santa Ana Mtns 1347 Comment
  CAS-BOT-BC173738  Ribes speciosum Marcus E. Jones 1931-3-23 28326 Orange Laguna Comment
  RSA2066  Ribes speciosum Carl B. Wolf 1931-3-6 1863 Orange 1 mile north of mouth of Harding canyon, west slope of Santa Ana Mts. 305 Comment
  RSA454954  Ribes speciosum M. B. Dunkle 1933-5-30 3568 Orange Carbon Canyon Comment
  RSA658211  Ribes speciosum T. A. Daubert 1991-5-19 661 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  UCR151029  Ribes speciosum Scott D. White 1997-5-6 5038 Orange Peninsular Ranges; Santa Ana Mtns., Lomas de Santiago; Santiago Canyon area; unnamed tributary to Santiago Creek flowing from the SW, directly west of Pancho Canyon 396 Comment
  UCR241064  Ribes speciosum Dick Newell, Don Millar 2013-2-26 316 Orange South Coast, Willow Canyon Trail, Laguna Wilderness, 0.4 mi. NW of 133 Hwy and El Toro Rd. 163 Comment
  RSA226636  Ricinus communis Christopher Davidson, G. Benny 1971-6-15 1543 Orange Brea Canyon, 0.5 mile N of Central Avenue, along Brea Creek, near Brea Oil Co. wells. Comment
  RSA548867  Romneya coulteri Fred M. Roberts, Carol A. Roberts 1988-6-2 4028 Orange Santa Ana Mountains: Silverado Canyon. Maple Springs Truck trail. 4.3 km above gate, 1.0 km WSW Bald Peak. 817 Comment
  RSA564318  Romneya coulteri B. Pitzer 1992-5-21 1938 Orange Cleveland National Forest. State Hwy 74, 1 mi uphill from the 2000 ft. marker and to the left c. 1 mi on an old paved road. 762 Comment
  UC144803  Romneya coulteri Katharine Brandegee June 1910 Orange The Dumps Anaheim Comment
  UCR113451  Romneya coulteri R. E. Riefner Jr. 2000-7-6 20- 615 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, NE property, along powerline SE of upper Fremont Canyon 607 Comment
  RSA771716  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
  SD72247  Rorippa nasturtium-aquaticum R. S. Woglum 1932-4-16 Orange Trabuco Canyon Comment
  RSA799648  Rorippa palustris Justin M. Wood 2010-9-29 2741 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
  JEPS47230  Rosa L. M. Booth 1932-6-7 1161 Orange Newport Bay Comment
  POM1501  Rosa californica D. L. Crawford 1916-07 s.n. Orange Near Laguna Comment
  RSA375  Rosa californica J. T. Howell 1927-6-6 s.n. Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA788914  Rosa californica Fred M. Roberts 2008-6-12 7038 Orange Lomas de Santiago: Loma Ridge, Shoestring Canyon, Shoestring Road near jct. with Santiago Cyn. Rd. 251 Comment
  UCR192115  Rosa californica A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35294 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, c. 1.1 mi. E of Walnut Cyn Reservoir 277 Comment
  RSA0045579  Rosa californica R. H. McArthur 1934-4-21 s.n. Orange Limestone Boyscout Camp. Comment
  VVC457  Rubus ursinus F. Ambrey 1959-5-4 s.n. Orange Santa Ana Mtns., 0.8 mi W of pavement end in Silverado Cyn. 649 Comment
  RSA0048662  Rubus vitifolius Keith E. Hoffmaster 1930-4-27 505 Orange Santa Ana Mts. [Orange or Riverside County] Comment
  RSA5929  Rumex conglomeratus Carl B. Wolf 1932-7-2 3823 Orange Carbon Canyon, 1/8 mile below La Vida Springs [La Vida Mineral Springs]. 213 Comment
  UCR193609  Rumex crispus A. C. Sanders, Fred M. Roberts 2008-5-6 35237 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, south of Santiago Reservoir 351 Comment
  CAS-BOT-BC421599  Rumex crispus C. L. Hitchcock; C. V. Muhlick 1964-3-17 23072 Orange 8 miles e. of Yorba Linda, Santa Ana Canyon Comment
  POM201758  Rumex crispus L. M. Booth 1932-5-12 s.n. Orange Newport Bay. Comment
  RSA698483  Rumex hymenosepalus R. H. McArthur 1934-3-17 s.n. Orange Gypsum Canyon. Comment
Read comments
Dec 6 2008
  CAS-BOT-BC434975  Rumex obtusifolius A. C. Sanders; Fred M. Roberts 2008-7-7 36004 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir. 226 Comment
  UCR16515  Rumex salicifolius Steve Kulju 1974-5-27 s.n. Orange Peninsular Range; Santa Ana Mtns, San Juan Canyon, 16 mi SW of Lake Elsinore on State Hwy 74 488 Comment
  RSA234568  Ruppia cirrhosa James Henrickson 1970-7-24 5023 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  RSA317355  Ruppia maritima James R. Shevock 1974-5-3 3453 Orange Newport Back bay along Back Bay Drive Comment
  UCR143513  Salicornia bigelovii David Michener 1934-8-1 s.n. Orange Southern Coast, Newport Bay, near north end of bridge connecting Balboa Island with mainland 3 Comment
  UCR14054.1  Salicornia subterminalis Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  IRVC24541  Salicornia virginica J. Johnson 1976-8-10 Orange Newport [Back] Bay. Newport Beach Comment
  CAS-BOT-BC129735  Salix bonplandiana Helen D. Geis 1902-1-1 552 Orange Santa Ana Comment
  RSA4247  Salix exigua Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River and south of pear orchard, Santa Ana Canyon. 122 Comment
  SBBG58935  Salix exigua var. hindsiana C. B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Cyn 120 Comment
  SBBG58943  Salix exigua var. hindsiana C. B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, Bixby Ave, 1 km W of Hansen Rd, near Los Alamitos 8 Comment
  CAS-BOT-BC108140  Salix gooddingii H. D. Geis 1902-5-1 s.n. Orange Near Santa Ana Comment
  CAS-BOT-BC108141  Salix gooddingii H. D. Geis 1902-1-1 533 Orange Santa Ana 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
  RSA731955  Salix gooddingii Fred M. Roberts 2007-12-12 6702 Orange Santa Ana Canyon: Santa Ana River, south of Green River Golf course on south side of river, 0.4km E Coal Cyn. Rd. and 0.7km W Riverside Co. line. 129 Comment
  UCD110999  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  PASA2678  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Rd., near town of Los Alamitos. 7.5 Comment
  RSA0034661  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA12633  Salix laevigata Carl B. Wolf 1934-8-16 6067 Orange Bryant Ranch east of Long Beach. Near N.W. corner section 33. Comment
  RSA16482  Salix laevigata Percy C. Everett 1935-6-19 7225 Orange Main Divide Motorway, Bear Spring. 1220 Comment
  RSA5369  Salix laevigata B. D. Stark 1933-1-7 4511 Orange Rancho Santa Ana, river bottom below ranch houses. 122 Comment
  RSA603345  Salix laevigata Scott D. White, B. Leatherman 1997-6-12 5323 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
  UC506450  Salix laevigata Carl Hedin and Joseph Ewan 1932-7-9 7681 Orange 8 km. below Prado (Rincon); Santa Ana R. Comment
  UCR138398  Salix laevigata Scott D. White, Brian Leatherman 1997-6-12 5323 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  UCSB52458  Salix laevigata Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills: Carbon Canyon, Carbon Canyon Rd., 0.6km by road SW county line; 2.3km NNW Gilman Peak 76 Comment
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Oct 28 2018
  UCSB57547  Salix laevigata Roberts, Fred 1984-4-18 Orange Wagon Wheel Regional Park: 3.0km NNE Median Survey Mark; 2.1km NW Bench Mark 422 190 Comment
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Oct 28 2018
  RSA142  Salix lasiolepis J. T. Howell 1927-7-14 393 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA542509  Salix lasiolepis Fred M. Roberts Jr., W. R. Ferren 1987-4-8 3357 Orange Newport Beach: Upper Newport Back Bay, west side, North Star Beach, 0.8 km N Coney Island. 0 Comment
  RSA750119  Salix lasiolepis A. C. Sanders, Fred M. Roberts 2008-8-7 35985 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  RSA759169  Salix lasiolepis A. C. Sanders 2008-5-28 35444 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  UC498103  Salix lasiolepis L. M. Booth 1932-12-1 1384 Orange Santa Ana River; near mouth, about 3/4 mi from ocean Comment
  CAS-BOT-BC128463  Salix lasiolepis var. lasiolepis Carl B. Wolf 1932-2-15 2654 Orange Rancho Santa Ana Botanic Garden, north of administration building. 182 Comment
  CAS-BOT-BC126311  Salix sessilifolia Helen D. Geis 1902-1-1 553 Orange Santa Ana Comment
  CAS-BOT-BC126314  Salix sessilifolia Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  CDA23060  Salsola australis Mark A. Elvin, D. G. Kelch 2006-12-9 5295 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  SD243324  Salsola australis R. E. Riefner Jr. 2006-11-14 06 672 Orange City of Irvine, San Diego Creek; vicinity of Campus Ave. at University Drive. (Tustin 7.5'Q) 4 Comment
  UCR192081  Salsola australis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35282 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA411335  Salvia apiana F. R. Fosberg 1931-6-21 S 5092 Orange Lower Santiago Canyon. Comment
  RSA542479  Salvia apiana Fred M. Roberts 1988-5-13 3972 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 Comment
  RSA649075  Salvia apiana Karl Price 1988-5-21 41 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
  UCR241901  Salvia apiana Fred M. Roberts 2012-4-24 7528 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  RSA542482  Salvia columbariae Fred M. Roberts, Teresa Sholars 1988-3-29 3881 Orange Santa Ana Mountains: Hot Springs Canyon, 0.5 km by road north Hwy 74, 0.9 km ESE Juan Rancho Survey Marker. 223 Comment
  RSA733974  Salvia columbariae Keith E. Hoffmaster 1927-4-8 423 Orange Santa Ana Mountains. Comment
  UCR193817  Salvia columbariae A. C. Sanders, Fred M. Roberts 2008-7-16 35876 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  RSA1566  Salvia leucophylla J. T. Howell 1928-7-10 1095 Orange Black Star Canyon, Santa Ana Mts. 457 Comment
  CAS-BOT-BC229976  Salvia mellifera John Thomas Howell 1927-6-8 2459 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 213 Comment
  HSC14369  Salvia mellifera J. J. Wagoner 1965-4-11 17 Orange 4 mi. N of Modjeska Canyon off Irvine Rd. near Irvine Lake Comment
  SFV3231  Salvia mellifera A. M. Johnson 1932-4-23 4028 Orange Dry hills north of Orange. 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
  RSA0034529  Salvia mellifera Paul Shirokawa 1998-4-24 7 Orange Cleveland National Forest - Trabuco Ranger District, 2.9 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 975 Comment
  RSA3156  Sambucus mexicana C. B. Wolf 1931-7-25 2293 Orange Above irrigation canal, just north of Mexican houses. Rancho Santa Ana. 122 Comment
  UC1125331  Sambucus mexicana A. Lewis May 1934 421 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle 1341 Comment
  UCR106271  Sambucus mexicana B. G. Pitzer, M. Georgiady 1997-4-5 3094 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  UCR209664  Sambucus nigra Fred M. Roberts 2008-5-8 6944 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Strands Road Gate, 0.8 km west-northwest of the Marine Institute, Dana Point Harbor 65 Comment
  CAS-BOT-BC238829  Sambucus nigra subsp. caerulea C. B. Wolf 1931-7-25 2293 Orange Above the irrigation canal, just north of Mexican houses, Rancho Santa Ana, Santa Ana Canyon 121 Comment
  UCD137210  Sambucus nigra subsp. caerulea Ronni Stachelek; Bob Anderson, Frances Schropshire 1995-3-1 41 Orange Newport Beach, West side Upper Newport Bay adjacent to Santa Ana Delhi Channel, ca. 100 m west of footbridge. Comment
  RSA542458  Samolus parviflorus Fred M. Roberts 1987-8-6 3581 Orange San Joaquin Hills: Los Tracos Canyon, 0.9km ESE Pelican Hill. 78 Comment
  UC566881  Sanicula arguta H. L. Mason 1926-4-25 2924 Orange 5 mi s of Laguna Comment
  UCR209331  Sanicula arguta Fred M. Roberts 2009-4-11 6888 Orange Lomas de Santiago, Loma Ridge, upper Dripping Springs Canyon, 0.9 km northeast of Bee Peak and 1.2 km west-northwest of Dripping Springs 448 Comment
  RSA734900  Sanicula bipinnatifida A. C. Sanders 2008-5-28 35435 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  CLARK-A1528-1451  Sanicula crassicaulis John C. Roos 1937-5-10 2078 Orange Comment
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Jun 24 2014
  POM6326  Sanicula crassicaulis P. A. Munz, L. T. Street, G. Williams 1919-5-3 2636 Orange Santa Ana River Canyon. Comment
  RSA789220  Sanicula crassicaulis Naomi Fraga, Duncan Bell 2009-5-11 2722 Orange Chiquita Trail 762 Comment
  RSA794245  Sanicula crassicaulis Doris Hoover Bowers 1971-4-19 1688 Orange Black Star Canyon Indian Site 762 Comment
  UCR192226  Sanicula crassicaulis A. C. Sanders, Fred M. Roberts 2008-5-6 35267 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
  HSC66534  Sanicula graveolens Christopher Davidson 1977-5-18 5606 Orange Santa Ana Mts. Cleveland Nat. Forest. Santiago Peak (on Orange-Riverside Co. line). 1707 Comment
  UCSB48363  Sanicula tuberosa Roberts, Fred 1982-4-18 Orange Santa Ana Mtns.; upper Hot Springs Canyon, 0.1 km. SW Falcon Group Camp; 2.0 km. SE Los Pinos Peak 1075 Comment
  IRVC28644  Satureja chandleri Mark A. Elvin, A. C. Sanders 2005-9-2 4499 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  RSA83973  Saxifraga californica F. W. Peirson 1925-4-11 5730 Orange Slope above mill, in Silverado Canyon, Santa Ana Mountains. Comment
  RSA649321  Schinus terebinthifolius Trudy R. Ericson 1976-4-1 22 Orange Along South Campus Drive, north of greenhouse enclosure, Campus, Califonia State University, Fullerton. 68 Comment
  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
  RSA773561  Schismus barbatus Fred M. Roberts 1999-5-14 5217 Orange Peninsular Ranges; Santa Ana Mts.: Lomas de Santiago, Loma Ridge; Upper Limestone Canyon on slopes above Bolero Spring, 2.4 km NNW Bolero Lookout 451 Comment
  RSA366053  Schoenoplectus americanus H. L. Bauer 1929-5-7 s.n. Orange Santa Ana Canyon. Comment
  RSA96  Schoenoplectus americanus J. T. Howell 1927-6-30 239 Orange Bryant Ranch near Long Beach. 15 Comment
  CAS-BOT-BC111263  Schoenoplectus californicus Ivan Murray Johnston 1918-9-3 2147 Orange Laguna Canon 106 Comment
  RSA234484  Schoenoplectus californicus James Henrickson 1970-7-25 5070 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March 0 Comment
  RSA234495  Schoenoplectus californicus James Henrickson 1970-9-5 5330 Orange 3 miles NE of Huntinton Beach just N of Bolsa Chica Salt Marsh. Sea level. 0 Comment
  RSA793256  Schoenoplectus californicus Robert F. Thorne 1984-1 s.n. Orange Newport Back Bay Comment
  UCR139138  Schoenoplectus californicus Scott D. White, Brian Leatherman 1997-6-12 5331 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
  UCR210371  Schoenoplectus californicus T. B. Salvato, Billy Deane 2006-10-16 1937 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  UCR85726  Schoenoplectus californicus Scott D. White 1993-4-28 1290 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  POM50488  Schoenoplectus tabernaemontani Helen D. Geis 1902-11 s.n. Orange Unspecified. Comment
  UCSB48201  Scirpus microcarpus Roberts, Fred 1981-6-26 Orange Santa Ana Mtns.; San Juan Canyon; 0.1 km. N Lower San Juan Picnic Ground 390 Comment
  SDSU11729  Scirpus robustus Thomas A. Zink 1971-4-1 Orange Newport Back Bay near a storm drain exit, about 2.5 miles west of Jamboree Rd. 2 Comment
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Oct 13 2011
  UCR191024  Scrophularia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35014 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  UCSC000882  Scrophularia californica Peter Kamb 1948-6-19 1097 Orange Holy Jim Canyon, Santa Ana Mts. 610 Comment
  SEINET12347787  Scrophulariaceae S. A. Thompson, Rawlins, J. E. 1988-8-27 5262 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  UCR130352  Searsia pendulina A. C. Sanders, Mark A. Elvin 2003-10-12 27325 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  RSA723967  Secale cereale R. E. Riefner 2004-5-1 04 -154 Orange City of Irvine; Jeffrey Rd. near Bryan Rd. 73 Comment
  UCD170928  Sechium edule D. E. Bramlet 2005-10-13 3916 Orange South Coast: end of Kline Drive, 650 ft south of Orchard Drive in Santa Ana Heights; 2600 ft SW of the S end of John Wayne Airport. 15 Comment
  CAS-BOT-BC61966  Selaginella John Thomas Howell 1937-7-22 2834 Orange Claymine Canyon, Santa Ana Mts. 182 Comment
  RSA124718  Selaginella bigelovii E. K. Balls, Percy C. Everett 1957-11-25 22841 Orange Upper Trabuco Canyon, 2.2 mi. ne. from entrance to Holy Jim Canyon. 990 Comment
  RSA15  Selaginella bigelovii John Thomas Howell 1927-7-24 473 Orange Claymine Canyon, near Sierra Peak 167 Comment
  RSA594877  Selaginella bigelovii Fred M. Roberts, Rick Riefner 1992-2-15 4832 Orange Lomas De Santiago: Foothill Ranch north of El Toro Road, c. 4.7 kilometers SSE Bolero Lookout. 295 Comment
  POM272076  Senecio californicus Lyman Benson 1932-3-26 3199 Orange Dana Point. 60 Comment
  RSA0012667  Senecio californicus R. E. Riefner Jr. 2000-6-26 20 -583 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N from Baker Canyon Road. 305 Comment
  UCSB52922  Senecio californicus Roberts, Fred 1983-3-10 Orange Dana Point Headlands: south of Dana Strand Rd., 0.8km W Dana Point Harbor; 1.0km SW Richard Henry Dana School 66 Comment
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Dec 12 2018
  RSA0012719  Senecio californicus Helen D. Geis 537 Orange Santiago Canyon. Comment
  POM201687  Senecio flaccidus var. douglasii L. M. Booth 818 Orange Santa Ana Canyon bottom Comment
  UCD64189  Senecio linearifolius var. linearifolius Daniel Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel. Dana Point Highlands. Crown Valley Parkway-Pacific Island Drive. 70 Comment
  RSA734811  Senecio vulgaris A. C. Sanders, Fred M. Roberts 2008-3-25 34578 Orange Saddle on ridge near head of Weir Canyonm, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  RSA734851  Senecio vulgaris A. C. Sanders, Mitch Provance 2008-5-20 35412 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  UCSB48100  Senecio vulgaris Roberts, Fred 1981-4-11 Orange Highway 74, 5.2km E San Juan Capistrano, near San Juan Creek crossing 52 Comment
  RSA936  Senecio vulgaris J. T. Howell 1928-2-7 829 Orange Near the ranch houses, Rancho Santa Ana 152 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
  RSA655602  Sesuvium verrucosum A. C. Sanders 2000-4-19 23334 Orange Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 0 Comment
  UCR112115  Sesuvium verrucosum A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23334 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  IRVC1825  Setaria lutescens J. B. Anderson 1966-4-25 617 Orange Santa Ana: 20021 Birch Street. Southern Coastal Comment
  CDA2432  Setaria parviflora T. C. Fuller 1961-10-18 7174 Orange 2 miles east of Atwood. 0 Comment
  POM50701  Setaria parviflora H. Droege 1902-05 s.n. Orange Santa Ana Orange County Comment
  RSA0027437  Setaria parviflora Fred M. Roberts 2012-7-18 7676 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
  RSA682910  Sidalcea malviflora Scott D. White, Amanda Duchardt 2003-5-1 9159 Orange Santa Ana Mountain Foothills: Slopes above west side of Trampas Canyon. 107 Comment
  UCR16330  Sidalcea malviflora M. Wexler 1973-5-13 s.n. Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Los Pinos Forestry Camp Road, 0.7 mi. west of State Hwy 74 and 5.29 mi. from Orange County line 610 Comment
  RSA698173  Sidalcea malviflora R. H. McArthur 1934-3-25 s.n. Orange Paularino roadside. Comment
  RSA701970  Sidalcea malviflora subsp. malviflora Fred M. Roberts, David E. Bramlet 2003-6-20 5928 A Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 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
  SEINET3132581  Sidalcea neomexicana subsp. thurberi L. Abrams 1903-4-17 3257 Orange Low Ground Between Tustin & Myford Comment
  RSA285  Silene antirrhina J. T. Howell 1928-2-25 851 Orange Between Nolina and Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA734348  Silene antirrhina A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34641 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 396 Comment
  RSA773513  Silene antirrhina Fred M. Roberts 1999-5-3 5203 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
  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
  RSA603348  Silene gallica Scott D. White 1997-6-12 5326 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e. ca. 2-4 miles E of I-15/Highway 74 junction. 46 Comment
  RSA737534  Silene gallica Fred M. Roberts 2008-3-12 6728 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UC537161  Silene gallica Lawrence M. Booth 1932-5-12 1016 Orange Newport Bay Comment
  CAS-BOT-BC174885  Silene laciniata Munz; Street; Williams 1919-5-3 2671 Orange Santa Ana River [Canon] Canyon Comment
  RSA0013912  Silene laciniata Fred M. Roberts 2012-5-10 7584 Orange San Joaquin Hills: Buck Gully, south fork, north slope of Pelican Hill, along Pelican Hills Dr., 0.3 km N summit Pelican Hill. 189 Comment
  UCR16182  Silene laciniata Kenneth Hibberd 1966-5-8 660508- 2 Orange Santa Ana Mountains, Modjeska Canyon, 2 mi. north of the El Toro Road [S18] junction 396 Comment
  RSA289  Silene laciniata subsp. major J. T. Howell 1927-7-28 512 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  RSA438885  Silene laciniata subsp. major M. B. Dunkle 5377 Orange San Juan Canyon Comment
  RSA438888  Silene laciniata subsp. major M. B. Dunkle 1933-5-30 3375 Orange Santa Ana Canyon. Comment
  RSA439886  Silene laciniata subsp. major M. B. Dunkle 1933-5-30 3571 Orange Carbon Canyon Comment
  UCR232770  Silene multinervia Robt. L. Allen, Trisha Smith, Mike Kahle 2006-6-21 s.n. Orange Peninsular Range; Santa Ana Mtns., upper Fremont Canyon, ridge along SE, along unpaved Lakeview Rd. 638 Comment
  IRVC908  Silybum marianum L. Stilgenbauer 1965-4-27 Orange Corona del Mar], Big Corona Beach. Newport Beach Comment
  RSA4791  Sinapis arvensis James Snow s.n. Orange Plants of the Bryant Ranch, near Long Beach. Station # 3, Plant #5. Comment
  RSA653212  Sinapis arvensis David Barrios 1991-5-1 9 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle. 365 Comment
  RSA797658  Sinapis arvensis R. F. Thorne, E. W. Lathrop 1977-5-18 49761 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail Comment
  UC1929781  Sinapis arvensis Scott D. White, Amanda Duchardt 2003-3-27 8849 Orange SANTA ANA MOUNTAIN FOOTHILLS: Canyon bottom and west facing slopes above Canada Gobernadora. Comment
  CAS-BOT-BC75038  Sisymbrium altissimum John Thomas Howell 1927-7-24 2821 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  IRVC1169  Sisymbrium altissimum T. Baskin 1965-4-9 Orange Corona del Mar High School. Newport Beach Comment
  IRVC1181  Sisymbrium irio B. Mawdsley 1965-4-5 Orange between Laguna Beach and San Clemente. Pacific Coast Hwy Comment
  UCD115600  Sisymbrium irio Ira L. Wiggins 1966-2-5 20425 Orange along Newport Blvd., 4.5 miles N of Orange County Fairgrounds. Comment
  JEPS89207  Sisymbrium orientale Rimo Bacigalupi, L. Heckard, P. C. Hutchison 1962-3-16 8229 Orange 2 mi n of Doheny Beach State Park (along U.S. 101) Comment
  UCR230834  Sisymbrium orientale Dick Newell, Don Millar 2011-6-18 177 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon, just north of the Lake Irvine dam 204 Comment
  RSA654311  Sisymbrium orientale Caralisa Breidenbaugh, Mark Breidenbaugh 1992-5-24 41 Orange 100 ft Northwest of Chino Hills State Park Boundary. 243 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
  UCR16603  Sisyrinchium bellum Nancy Robb 1966-4-15 s.n. Orange 3 miles SE of Yorba Linda, 1 mi south of Santa Ana Canyon Road 122 Comment
  UCR170143  Sisyrinchium bellum Jeffrey Ross, R. Zaka 1998-5-28 126 Orange Irvine, San Joaquin Hills; near Shady Canyon, Irvine Valley College, at intersection of Jeffrey and Irvine Center Drive 107 Comment
  UCR191233  Sisyrinchium bellum A. C. Sanders, Fred M. Roberts 2008-4-22 35029 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  UCR191430  Sisyrinchium bellum A. C. Sanders, Fred M. Roberts 2008-4-8 34766 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
  POM9050  Sisyrinchium bellum Philip A. Munz, R. D. Harwood 1920-4-24 2751 Orange Sierra [Freemont] Canyon, Santa Ana Mountains. 366 Comment
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Sep 17 2011
  UCR93933  Solanum douglasii B. G. Pitzer 1996-4-30 2803 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA0020076  Solanum douglasii Keith E. Hoffmaster 1927-5-15 533 Orange Santa Ana Comment
  SDSU11166  Solanum douglasii R. M. Beauchamp 1968-2-17 774 Orange On slope on west side of El Toro Road, 7 miles east of Interstate 5. 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
  CAS-BOT-BC156480  Solanum umbelliferum J. T. Howell 1927-7-24 2822 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC156710  Solanum umbelliferum C. B. Wolf 1931-3-6 1862 Orange 1 mi. no. of base of Modjeska Grade, west slope of Santa Ana Mts. 304 Comment
  CAS-BOT-BC156711  Solanum umbelliferum C. B. Wolf 1931-3-6 1850 Orange 1/2 [milea] miles below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  RSA682759  Solanum umbelliferum Scott D. White, Amanda Duchardt 2003-3-27 8853 Orange Santa Ana Mountain Foothills: Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA735963  Solanum xanti var. xanti Scott D. White, Justin M. Wood 2008-4-24 11911 Orange Chino Hills: SCE powerline corridor, SE of Carbon Canyon Rd and N of Chino Hills State Park. 366 Comment
  UCR232931  Soleirolia soleirolii R. E. Riefner Jr. 2011-7-1 11- 84 Orange South Coast, city of Newport Beach, beach area west of the end of Cameo Shores Road, south c. 1.5 mi from Poppy Avenue 2 Comment
  RSA753970  Solidago californica A. C. Sanders, Fred M. Roberts 2008-7-16 35853 Orange Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  RSA788807  Solidago californica R. F. Thorne 1977-11-21 49980 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  RSA0055824  Solidago californica Doris Bowers 1970-10-26 1709 Orange Black Star Can. Indian site 610 Comment
  SEINET11808327  Solidago californica S. A. Thompson, Rawlins, J. E. 1988-1 5264 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  POM201732  Solidago confinis L. M. Booth 1932-12-26 1383 Orange Newport Lagoon. Comment
  IRVC22185  Sonchus asper Fred M. Roberts 1985-4-11 1644 Orange Dana Point Headlands; Weyerhaeuser Horticultural Research Station property. Southern Coastal 61 Comment
  UCR192457  Sonchus asper A. C. Sanders, Fred M. Roberts 2008-3-25 34553 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR239617  Sonchus oleraceus Fred M. Roberts 2012-4-27 7541 Orange Lomas de Santiago, Loma Ridge, west of SR 241, tributary to 'Las Flores' Canyon, near East Loma Ridge Road, 1.6 km southwest Irvine Lake Park Campground and 1.2 km east-southeast of Orange County Emergency Operations Center, Hill 1311 308 Comment
  IRVC1830  Sorghum halepense I. L. Wiggins 1965-9-26 20 257 Orange Roadside about 1.5mi above the mouth of Carbon Canyon. southern coastal Comment
  IRVC29761  Spartina foliosa Barry S. Nerhus, Mark A. Elvin 2006-11-4 14 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  RSA483175  Spartina foliosa E. Yale Dawson 1948-10-2 5300 Orange Balboa Yacht Harbor, just east of 101 Hwy bridge Comment
  RSA548855  Spartina foliosa Fred M. Roberts 1986-10-31 3185 Orange Seal Beach Naval Weapons Station: Anaheim Bay, vicinity of Hog Island., UTM 3732900m N, 400900m E 0 Comment
  RSA659437  Spartium junceum P. Shirokawa 1998-5-7 13 Orange Cleveland National Forest- Trabuco Ranger District, 0.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 808 Comment
  UCR266419  Spergularia D. E. Bramlet 2009-11-27 4430 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  RSA0097855  Spergularia bocconi L. M. Booth 1932-5-24 1095 Orange Newport Bay, Public Golf Course. Comment
  IRVC20156  Spergularia bocconii R. L. Allen 1978-4-1 Orange 60m NE Golden Lantern [and Acapulco Rds.] jct. Dana Point Comment
  RSA0098428  Spergularia macrotheca var. macrotheca R. E. Riefner 1994-8-1 94 -567 Orange S end of San Clemente State Beach. Comment
  IRVC24998  Spergularia marina Fred M. Roberts, H. Camp & R. Fisher 1986-6-20 3022 Orange San Joaquin Freshwater Marsh, near Campus Dr., 1.7km NNW UC Irvine campus center, Irvine 2 Comment
  RSA0098511  Spergularia marina R. F. Thorne 1984-1 s.n. Orange San Joaquin Marsh, Newport Back Bay. Comment
  RSA0098538  Spergularia marina L. M. Booth 1932-5-12 1010 Orange Newport Beach. Comment
  RSA5860  Spergularia salina C. B. Wolf 1932-6-28 3783 Orange Along western half of no. boundary of 40 acre Valencia Orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA0098709  Spergularia villosa L. M. Booth 1932-7-18 1266 A Orange Costa Mesa, inland from Newport Bay. 30 Comment
  CDA14320  Sporobolus indicus F. Covely 1998-8-3 s.n. Orange South Coast; Vampus of Huntington Beach U.H.S.D., 525 Yorktown Ave., Huntington Beach. 0 Comment
  UCR192975  Stachys ajugoides A. C. Sanders, Fred M. Roberts 2008-6-17 35488 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  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
  UC537162  Stachys ajugoides var. ajugoides Lawrence M. Booth 1932-6-4 1146 Orange Newport Lagoon Comment
  RSA780827  Stachys ajugoides var. rigida Sandy Leatherman 2011-5-16 2011 -16 Orange Peninsular Ranges; Chino-Puente Hills region: 50 meters west of Carbon Canyon Road and Lions Canyon Road in Carbon Canyon in the City of Brea. 273 Comment
  RSA681025  Stachys rigida subsp. quercetorum Fred M. Roberts, D. E. Bramlet 2003-3-13 5575 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 197 Comment
  RSA734666  Stachys rigida subsp. quercetorum A. C. Sanders, Fred M. Roberts 2008-6-17 35488 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
  UCR242699  Stachys rigida subsp. quercetorum Fred M. Roberts 2012-5-10 7573 Orange SAN JOAQUIN HILLS: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit 154 Comment
  RSA0119681  Stellaria media Fred M. Roberts 2015-3-10 7924 Orange San Joaquin Hills: Niguel Hill, on ridge above Aliso Canyon ear end of Ceanothus Drive (Hangover House property), 0.4 km WNW summit Aliso Peak. 122 Comment
  RSA743497  Stellaria media Fred M. Roberts 2008-3-19 6780 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  RSA696565  Stellaria media Marjorie Smith s.n. Orange High School Campus. Comment
  SDSU4468  Stellaria media R. M. Beauchamp 1968-2-17 772 Orange 2 miles north of El Toro Road intersection. Comment
  JEPS36878  Stephanomeria diegensis L. M. Booth 1933-10-18 Orange Newport Comment
  RSA0044742  Stephanomeria diegensis Fred M. Roberts, Art Davenport 2003-9-11 6010 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
  UCR186593  Stephanomeria diegensis Robert DeRuff 1994-1 462 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, Newporter Canyon 8 Comment
  UCR222876  Stephanomeria diegensis T. B. Salvato 2010-10-27 5129 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  POM201781  Stephanomeria exigua subsp. coronaria L. M. Booth 1932-7-27 1325 Orange Corona del Mar, Newport Beach, Bluff Ravine Comment
  UCR224153  Stephanomeria exigua subsp. exigua Fred M. Roberts 2008-7-10 7065 Orange South Coast, Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8 km west-northwest of Marine Institute, Dana Point Harbor 65 Comment
  RSA439  Stillingia linearifolia J. T. Howell 1927-7-5 271 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  SEINET7073427  Stylocline gnaphaloides A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  RSA957