Search Results — 2000 specimen records retrieved (1630 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
  RSA609047  Abronia maritima Louis C. Wheeler 1932-6-25 866 Orange Newport Bay. 0 Comment
  RSA678453  Abronia maritima Valerie L. Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1116 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UC2030070  Abronia maritima Valerie Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1115 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. Comment
  POM98121  Abronia maritima I. M. Johnston 1924-09 s.n. Orange Balboa Island. Comment
  POM201770  Abronia villosa var. aurita L. M. Booth 1932-6-25 1308 Orange Santa Ana River, 1 1/2 miles from ocean. 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
  RSA727606  Abutilon palmeri R. E. Riefner Jr. 2006-9-5 06 -418 Orange Southern Coast: Corona del Mar, Ocean Blvd. Near Iris Ave. 11 Comment
  RSA0065574  Acacia decurrens var. dealbata Louis R. Klins 1949-2-12 s.n. Orange 1928 W. 17th Street, Santa Ana. 60 Comment
  SEINET5642645  Acacia longifolia Shelby J. Wood 2013-3-6 4 Orange Laguna Hills.; 0 Comment
  CDA3995  Acacia retinodes D. G. Kelch 2006-12-9 6 .554 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  SD175821  Acacia saligna D. G. Kelch 2006-12-9 06 533 Orange Newport Bay, Back Bay Dr. between marsh and steep bluff. 10 Comment
  IRVC21628  Acer macrophyllum Fred M. Roberts, K. G. Marsh 1984-4-21 1348 Orange Santa Ana Mountains: Lost Women Canyon, 2.4km WSW Bald Peak; 2.3km SE Bedford Peak. Peninsular Ranges 755 Comment
  IRVC6  Acer macrophyllum Gail Howard 1965-4-28 s.n. Orange Nerport Beach, Back Bay. Southern Coastal 8 Comment
  SEINET3195254 Image available Acer macrophyllum P. C. Everett 1935-6-19 7239 Orange Santa Ana Mts., Trabuco Canyon,2 6/10 mi. below (W.) Summit Truck Trail 910 Comment
  UC718396  Acer macrophyllum P. C. Everett 1935-6-19 7239 Orange 2 6/10 mi below (w) Summit Truck Trail; Santa Ana Mts., Trabuco Canyon 914 Comment
  RSA791875  Achnatherum coronatum R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49617 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station Comment
  UCSB42219  Acmispon americanus Roos, John 1965-6-16 Orange Dana Point near Doheney Beach Comment
  UCSB48021  Acmispon americanus 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
  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
  UCSB47638  Acmispon strigosus Roberts, Jr., Fred 1980-5-3 Orange Main Divide Truck Trail, on east side of road, 0.4 km. W of Trabuco Peak, Santa Ana Mtns. 1341 Comment
  UCSB48115  Acmispon strigosus Roberts, Jr., Fred 1981-4-12 Orange Santa Ana Mountains; San Juan Canyon, Hwy. 74, 1.3 km. by road E San Juan Guard Station; 0.9 km. SE Juan Rancho Survey Mark 295 Comment
  UC1544779  Adenostoma fasciculatum D. S. Seigler and E. Rodriguez 1978-5-13 11003 Orange Trabuco Canyon Comment
  RSA5280  Adenostoma fasciculatum var. fasciculatum B. D. Stark 1932-12-15 1700 Orange Rancho Santa Ana 145 Comment
  RSA553109  Adenostoma fasciculatum var. fasciculatum Fred M. Roberts 1989-5-9 4341 Orange Gypsum Canyon, west for, 5.6 km WNW Sierra Peak, 1km S Hwy 91. 146 Comment
  CDA1085  Adiantum capillus-veneris D. G. Kelch 2006-12-9 6 .532 Orange Newport Bay, Back Bay Dr. betweeen marsh and steep bluff. Comment
  SEINET7249212  Adiantum capillus-veneris R. E. Riefner Jr. 2012-1 12 -43 Orange City of Laguna Beach, Treasure Island Beach, vicinity of Wesley Drive and South Coast Highway. 1 Comment
  POM256963  Adiantum jordanii W. Pequegnat 1940-6-14 s.n. Orange Yaeger's Meadow. Santa Ana Mountains 914 Comment
  RSA703722  Adiantum jordanii D. E. Bramlet, Fred M. Roberts 2003-3-27 3355 Orange Donna O'Neill Reserve. NE corner of the reserve 274m west of Cristianitos Rd. and 1.46km north of the E-W access road. 152 Comment
  IRVC3118  Adiantum raddianum Polly Brecht 1965-5-7 HS 0580 Orange Newport Beach; Cherry Tree Lane. Southern Coastal Comment
  UCR186583  Aeonium Robert DeRuff 1992-4-29 433 Orange Southern Coast, Newport Beach, Newport Back Bay, Castaways Bluffs 2 Comment
  RSA728658  Aeonium haworthii R. E. Riefner 2006-8-26 06 -377 Orange City of Laguna Beach, bluffs along Aliso Creek, N slope of Aliso Peak, Pacific Coast Hwy., E. of Aliso Beach. Aliso Beach County Park. 12 Comment
  RSA759121  Ageratina adenophora Robt. Allen 2007-7-15 s.n. Orange San Juan Canyon, Ortega Hwy, circa 1.2 road mi E of San Juan Fire Station 308 Comment
  UC1595640  Agoseris grandiflora Steve Boyd and Orlando Mistretta 1991-5-9 6198 Orange Santa Ana Mountains, crest of range at Oak Flat, SE of Sierra Peak, just W of Riverside County line. Comment
  UCR87044  Agoseris grandiflora B. G. Pitzer 1992-5-27 1952 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
  RSA543967  Agoseris grandiflora var. grandiflora Steve Boyd, Orlando Mistretta 1991-5-9 6198 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA798099  Agrostis exarata R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49570 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCSB48196  Agrostis exarata Roberts, Fred 1981-6-26 Orange Santa Ana Mtns; Viejo Canyon, 0.5 km N of CA Route 74, 2.7 km ENE of San Juan Guard Station 317 Comment
  RSA734668  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-6-17 35490 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  RSA788920  Agrostis pallens Fred M. Roberts 1999-6-10 5242 Orange Lomas de Santiago: Loma Ridge, Central Limestone Cyn., adjacent to the Sinks, 0.7 km E Bolero Spring and 1.9 km NW Bolero Lookout. 411 Comment
  UC729937  Agrostis stolonifera Carl B. Wolf 1932-6-13 Orange Malvern and Nicholas Avenues Fullerton 53 Comment
  UCR192983  Agrostis viridis A. C. Sanders, Fred M. Roberts 2008-6-17 35467 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCR193387  Agrostis viridis A. C. Sanders, T. B. Salvato 2008-5-13 35348 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
  RSA725516  Ailanthus altissima Fred M. Roberts, Robert L. Allen 2007-9-28 6614 Orange Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  IRVC26678  Allium burlewii Mark A. Elvin 2004-4-4 3215 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA176731  Allium haematochiton D. E. Breedlove 1962-3-9 1788 Orange 12.3 miles east of San Juan Capistrano on State [Highway] 74 244 Comment
  RSA0063249  Allium marvinii Philip A. Munz 1949-5-26 13373 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 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
  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
  RSA548870  Allium praecox Fred M. Roberts 1987-4-3 3342 Orange Irvine: San Joaquin Hills, Central Shadey Canyon, 2.8 kilometers NE Signal Hill. 103 Comment
  RSA759268  Allium praecox Robt. Allen, Reginald Durant, David Taylor 2008-4-11 s.n. Orange 1.6 road mi EENE above Maple Springs Forest Gate, between Lost Woman Canyon and Spruce Canyon. 740 Comment
  IRVC28639  Allophyllum glutinosum Mark A. Elvin, A. C. Sanders 2005-9-2 4494 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  RSA0058055  Allophyllum glutinosum Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49604 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  CAS-BOT-BC170690  Alnus rhombifolia C. B. Wolf 1931-3-6 1855 Orange Trabuco Camp grounds, Trabuco Canyon, W slope of the Santa Ana Mts. 609 Comment
  RSA144  Alnus rhombifolia J. T. Howell 1927-7-21 452 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  UCR193584  Alnus rhombifolia A. C. Sanders, T. B. Salvato 2008-5-13 35366 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
  RSA597728  Alopecurus saccatus D. E. Bramlet 1995-6-10 2435 Orange Fairview Park, City of Costa Mesa., 37 24 490m N, 4 12 360m E. 43 Comment
  CLARK-A1528-917  Amaranthus albus Patricia A. Andrews 1975-6-26 5914 Orange Capistrano Bay Beach 9 Comment
  IRVC23146  Amaranthus deflexus Fred M. Roberts 1985-7-11 2026 Orange San Joaquin Hills: Laguna Canyon, Laguna Canyon Road near Laguna Lakes, 5.0km ENE Signal Peak. southern coastal 112 Comment
  UCR23424  Amaranthus hybridus Alfred R. Roos 1937-12-2 s.n. Orange Santa Ana Comment
  RSA404566  Amaranthus retroflexus Albert J. Perkins 1912-10-15 s.n. Orange Peatlands near head Newport Bay. Comment
  RSA416883  Amblyopappus pusillus L. C. Wheeler 1932-6-25 859 Orange Newport Bay. 1 Comment
  UC565480  Amblyopappus pusillus H. L. Mason 1926-4-25 2915 Orange 5 mi s, on the cliffs Laguna Comment
  UCR143379  Amblyopappus pusillus L. C. Wheeler 1932-6-25 859 Orange Coastal Plains and Basins; Los Angeles Basin region, Inland arm of Newport Bay, sea level 0 Comment
  UCR99550  Amblyopappus pusillus B. G. Pitzer, P. Gomez 1996-4-30 2795 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  IRVC9303  Amblyopappus pusillus B. T. Gittins 1966-4-20 85 Orange Corona del Mar, between Los Cerritos Riding Stable and Cameo Shores; coastal bluffs. Newport Beach Comment
  RSA610217  Amblyopappus pusillus Fred M. Roberts, Julie Vanderwier 1997-4-29 5014 Orange Bolsa Chica Salt Marsh; (US Fish & Wildlife Service cell 60) west of old oil field, 1.1 km. S Chica Survey Mark. 0 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
  RSA783366  Ambrosia acanthicarpa J. D. Olmsted 1959-9-22 979 Orange Along Santa Ana River N of Sycamore Park along Hwy. 8-9mile WSW of Corona north of Hwy. 134 Comment
  CAS-BOT-BC13770  Ambrosia chamissonis David D. Keck 1933-9-8 2540 Orange Sunset Beach Comment
  IRVC29760  Ambrosia chamissonis Barry S. Nerhus, Mark A. Elvin 2006-11-4 13 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  POM122718  Ambrosia chamissonis Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA678452  Ambrosia chamissonis Valerie L. Soza, Kenneth Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1115 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  SBBG61136  Ambrosia chamissonis M. N. Ackley -Sep-1928 245 Orange Sunset Beach 8 Comment
  UC536897  Ambrosia chamissonis Lawrence M. Booth 1932-5-25 1110 Orange Balboa Island Comment
  UCSB10360  Ambrosia chamissonis var. bipinnatisecta Norman Haller 1953-4-25 Orange collected 2.0 mi S, along U. S. Highway 101 Huntington Beach - U. S. Highway 101, and Huntington Beach Comment
  JEPS41025  Ambrosia psilostachya W. L. Jepson 1940-10-6 20179 Orange Horseshoe Bend; Santa Ana River Canon 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
  UCR193830  Ambrosia psilostachya A. C. Sanders, Fred M. Roberts 2008-7-16 35850 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon 325 Comment
  POM4802  Ambrosia psilostachya D. L. Crawford 1929-07 s.n. Orange Coast hills and shore. Comment
  RSA0031761  Ambrosia psilostachya R. F. Thorne 1977-11-21 50813 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  POM256962  Amorpha californica W. Pequegnat 1940-6-15 s.n. Orange Santa Ana Mountains: Modjeska Flat. 1372 Comment
  RSA415297  Amorpha californica C. B. Wolf, E. R. Johnson 1933-11-3 5525 Orange Main Divide Motorway Bedford Peak Firebreak and Silverado Motorway. Comment
  RSA703704  Amorpha fruticosa Fred M. Roberts, David E. Bramlet 2004-7-30 6090 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy Cristianitos Canyon, along Cristianitos Ck., 0.93 km SSW Gato Gate and 0.23 km W Cristianitos Road. 76 Comment
  UC1543190  Amorpha fruticosa Donald G. Nelson 1935-4-6 220 Orange n summer ranger station (near the main hwy of San Juan Canyon, e of San Juan Capistrano, s of Cleveland Nat. Forest); Santa Ana Mountains Comment
  UCR138407  Amorpha fruticosa Scott D. White, Brian Leatherman 1997-6-12 5329 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  UCR240112  Amorpha fruticosa Dick Newell, Don Millar 2012-5-22 260 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon, 0.4 mi. NE of Irvine Dam spillway 207 Comment
  UC1178238  Amsinckia intermedia Francia Chisaki 1957-4-3 928 Orange 6 mi s Irvine (just s of El Toro near top of hill on Hwy 101) Comment
  UCD119277  Amsinckia intermedia Francia Chisaki 1957-4-3 927 Orange 6 miles S of Irvine, just S of El Toro near top of hill on Highway 101. Comment
  IRVC29097  Amsinckia menziesii Fred M. Roberts 1989-3-17 4212 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA0127613  Amsinckia menziesii Fred M. Roberts 2016-4-26 8044 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
  IRVC9355  Amsinckia menziesii var. intermedia B. T. Gittins 1963-4-21 179-A Orange Newport Back Bay. Newport Beach Comment
  UCD117438  Anagallis arvensis E. Frost 1996-5-11 13 Orange Newport Back Bay, 45 yards in along bike path. 7 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
  RSA465135  Anagallis arvensis M. B. Dunkle 1933-4-9 3273 Orange Dana Point. Comment
  RSA650588  Anagallis arvensis D. Geisinger, R. Miller, E. Baldwin 1959-4-14 s.n. Orange Poor Mans Weather Glass, Santa Ana Canyon. Comment
  RSA678725  Andropogon glomeratus Fred M. Roberts, Carol A. Roberts, Robert Allen 2001-8-4 5518 Orange Santa Ana Mountains: San Juan Canyon at confluence with Viejo Cyn., on San Juan Creek below Calif. Rte. 74, 4.0km WnW Sitton Peak., (33 35' 41 N, 117 29' 14 W; T6S,R6W,SE/4 SE/4 Sect. 34) 287 Comment
  UCR113625  Andropogon glomeratus H. Camp 1999-9 s.n. Orange Peninsular Range; Santa Ana Mtns., Ronald W. Caspers Wilderness Park, 12 miles east of San Juan Capistrano along San Juan Creek bed near confluence with Hot Springs Canyon 213 Comment
  CAS-BOT-BC400328  Anemopsis californica A. C. Sanders; Fred M. Roberts 2008-8-7 35986 Orange Peninsular Range; Santa Ana Mtns.: lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  RSA652673  Anemopsis californica R. Spence 1974-8-13 s.n. Orange Upper Newport Bay. Hillsides around Bay. Comment
  RSA226628  Anthemis cotula Christopher Davidson, Gerald L. Benny 1971-6-15 s.n. Orange Brea Canyon, 0.5 mile N of Central Avenue, along Brea Creek, near Brea Oil Co. wells. Comment
  RSA594799  Antirrhinum coulterianum Fred M. Roberts, Sandra Leatherman, Brian Leatherman 1994-4-24 4919 Orange Santa Ana Mountains: Lower Hot Springs Canyon, c.a. 1km NNW Juan Rancho Survey Mark. Comment
  RSA734596  Antirrhinum coulterianum A. C. Sanders, Fred M. Roberts 2008-5-6 35225 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 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
  UCR190998  Antirrhinum coulterianum A. C. Sanders, Fred M. Roberts 2008-4-22 35050 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slopes of south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado 488 Comment
  UCR193365  Antirrhinum coulterianum A. C. Sanders, Mitch Provance 2008-5-20 35426 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  POM443834  Antirrhinum coulterianum Karlin G. Marsh 1978-6-6 s.n. Orange Santa Ana Mts: Holy Canyon Comment
  CAS-BOT-BC354305  Antirrhinum multiflorum R. E. Riefner, Jr. 2007-6-29 07 -286 Orange Irvine Ranch Reserve, North Irvine Ranch, East Fork of upper Fremont Canyon along Black Star SCE Rd. 594 Comment
  RSA698990  Antirrhinum nuttallianum Unspecified 1935-04 s.n. Orange Silverado Canyon. Comment
  UCR274178  Antirrhinum nuttallianum Dick Newell, Don Millar, Nicole Kahal 2015-6-9 409 Orange Peninsular Range; Santa Ana Mtns., foothills west of Black Star Canyon Road, at the end of the service road going to Edison's tower, 2/10 mile south of Lake View Rd. off State Spur 577 Comment
  JEPS4288  Antirrhinum nuttallianum subsp. nuttallianum Lawrence M. Booth 1932-7-7 1260 Orange s of Huntington Beach Comment
  POM354914  Antirrhinum nuttallianum subsp. nuttallianum M. B. Dunkle 1934-6-18 3994 Orange San Juan Canyon; Southern Coastal 305 Comment
  POM354883  Antirrhinum nuttallianum subsp. subsessile Thekla Mohr 1917-04 s.n. Orange Laguna. Comment
Read comments
Nov 25 2014
  RSA737480  Aphanisma blitoides Fred M. Roberts 2008-3-12 6736 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  RSA731994  Apiastrum angustifolium A. C. Sanders, L. Farley, F. M. Roberts, D. E. Bramlet 2008-4-1 34656 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  RSA542587  Aralia californica Fred M. Roberts, R. E. Riefner 1988-7-19 4114 Orange Santa Ana Mountains; Maple Springs Truck Trail, Upper Silverado Canyon, 1.9km N Modjeska Peak. 1128 Comment
  IRVC19394  Araujia sericifera R. L. Allen 1983-2-12 A627 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  CDA5520  Araujia sericifera L. Liekhus 1957-7-1 Orange 0 Comment
  RSA797916  Arbutus menziesii R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49826 Orange Santa Ana Mountains: Trabuco Canyon. 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
  RSA658640  Arctostaphylos glandulosa R. W. Hufstader 1971-3-29 64 Orange Collected in Harding Canyon off Harding Cyn. Rd. ca. 5 miles from Tucker Sac. Cleveland Nat. Forest. 762 Comment
  IRVC1255  Arctostaphylos glandulosa subsp. glandulosa A. S. Boughey 1965-3-16 69 Orange Silverado Canyon. Santa Ana Mountains Comment
  RSA629339  Arctostaphylos glandulosa subsp. glandulosa C. J. Fotheringham, Jon E. Keeley 1996-6-24 27642 Orange Ca. 3 km west of Sierra Peak. 700 Comment
  RSA787500  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49708 Orange Northern Santa Ana Mountains: Sierra Peak 900 Comment
  SEINET10576017  Arctostaphylos pumila J. Stone 2002-3-14 Stone 3357 Orange Rancho Santa Ana Botanic Garden, 1500 N. College Ave., Claremont, CA. Comment
  RSA752035  Argyranthemum foeniculaceum Fred M. Roberts 2008-3-27 6814 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 1, 0.5km W Marine Institute (Dana Point Harbor). 45 Comment
  RSA0013974  Aristida adscensionis Fred M. Roberts, David E. Bramlet 2008-5-13 6953 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  RSA542373  Aristida adscensionis Fred M. Roberts, T. Sholars, B. Stechmeyer s.n. Orange Santa Ana Mountains: Hot Sprinngs Canyon. 1.3 kilometers N Highway 74 by road, 0.7 kilometers NW Juan Rancho Survey Mark., UTM 3717900m N, 452700m E 274 Comment
Read comments
Jul 12 2013
  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
  RSA682760  Aristida purpurea Scott D. White, Amanda Duchardt 2003-3-27 8857 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA749350  Aristida purpurea Fred M. Roberts 2008-4-22 6923 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn.,along Haul Rd. near asphalt plant, 2.2 km ENE Rattlesnake Reservoir dam and 2.2 km WNW Bee Peak, Irvine Ranch Conservancy. 188 Comment
  UCR209342  Aristida purpurea var. purpurea Fred M. Roberts 2008-4-22 6923 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, along Haul Road near asphalt plant, 2.2 km east-northeast of Rattlesnake Reservoir Dam and 2.2 km west-northwest of Bee Peak, Irvine Ranch Conservancy 188 Comment
  RSA542372  Aristida ternipes var. hamulosa Fred M. Roberts, K. Keane 1988-5-25 3989 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker., UTM 3710600m N, 443550m E. 91 Comment
  SD52987  Arnica discoidea Peter H. Raven 1962-5-18 17751 Orange 4.8 miles above Gate on Silverado Canyon Truck Trail, Santa Ana Mountains 1064 Comment
  RSA696761  Artemisia biennis J. Russell Bruff 1930-10-26 s.n. Orange Santa Ana River bed. Comment
  UC111237  Artemisia biennis Theodore W. Minthorn 1907-8-18 7 Orange Laguna Comment
  RSA0062670  Artemisia californica Norman Willis 1948-2-8 s.n. Orange In foothills about 8 miles east of Orange. 304 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
  UCR206790  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 330 Comment
  CAS-BOT-BC90564  Artemisia dracunculus John Thomas Howell 1927-9-24 3110 Orange on n. side of Santa Ana [Canon] Canyon 213 Comment
  RSA292462  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. Comment
  JEPS36950  Artemisia tridentata subsp. tridentata John Thomas Howell 1927-10-22 3165 Orange Rancho Santa Ana Santa Ana river bottom, Rancho Santa Ana 152 Comment
  RSA784180  Artemisia vulgaris J. D. Olmsted 1959-8-26 836 Orange Drainage area to Santiago Reservoir. Mouth of Black Star Canyon east of Santiago Reservoir. 320 Comment
  POM48005  Arthrocnemum subterminale I. M. Johnston 1924-8-29 s.n. Orange Corona Del Mar Comment
  RSA719403  Arundo donax Fred M. Roberts, Robert L. Allen 2006-10-8 6432 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
  UCSB48033  Arundo donax Roberts, Fred 1981-9-26 Orange San Juan Capistrano; along Trabuco Creek on Camino Capistrano Rd; 0.4 km N jct Junipero Serra Rd, 0.5 km SW Bench Mark 202 66 Comment
  UCR179772  Asclepias curassavica R. E. Riefner Jr. 2005-10-27 05- 727 Orange South Coast, Huntington Beach, Huntington Central Park near Goldenwest St. 1 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
  IRVC18898  Asclepias fascicularis Fred M. Roberts 1981-6-22 281 Orange Hwy 74, 5.2km ENE San Juan Capistrano, Rancho Mission Viejo 100 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
  SEINET179443  Asclepias fascicularis L. M. Booth 1932-7-21 1291 Orange Anaheim Meadows. Comment
  RSA615567  Asparagus asparagoides B. Pitzer 1996-4-30 2787 Orange Upper Newport Bay: California Department Fish & Game Ecological Reserve, off (W of) Jamboree Road., (33 deg 38.9 N, 117 deg 52.2 W) 6 Comment
  RSA741481  Asphodelus fistulosus R. E. Riefner 2008-5-30 08 -125 Orange Near City of Orange, Santiago Creek, vicinity of Jackson Ranch Rd. at Santiago Creek Rd., Irvine Ranch Reserve, Management Area 15. Comment
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Feb 28 2016
  POM8680  Aspidotis californica P. A. Munz, R. D. Harwood 1920-4-24 3743 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA5  Aspidotis californica J. T. Howell 1927-7-3 257 Orange Claymine Canyon near Sierra Peak. 305 Comment
  IRVC16667  Aspidotis californica Gordon A. Marsh, K. G. Marsh 1979-9-24 Orange Pine Canyon, along dirt road above Blue Light Mine, Santa Ana Mountains Comment
  UCR92392  Aster bernardinus F. M. Reed 1927-11-10 5634 Orange South Coast, 1 mile south of Tustin, toward Laguna Canyon 31 Comment
  RSA93824  Aster hesperius F. W. Peirson 1924-10-19 5241 Orange Wintersberg 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
  IRVC24275  Aster subulatus var. ligulatus Fred M. Roberts, G. A. Marsh 1985-10-26 2525 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  RSA443829  Astragalus brauntonii Gordon Marsh, K. G. Marsh 1978-5-20 s.n. Orange Coal Canyon, along Coal Creek. Comment
  UC592754  Astragalus brauntonii Carl B. Wolf 1936-6-22 8000 Orange n slopes Sierra Pk (Claymine Canyon Truck Trail to Sierra Pk); Santa Ana Mts., n slopes Sierra Pk 457 Comment
  UCR229599  Astragalus brauntonii Betsey Landis, Valentin Arvizu, Cliff McLean, Kadest Ketsella 2004-9-6 s.n. Orange Peninsular Ranges; Santa Ana Mountains region, against wooden cofferdam in wet sand in CalTrans debris basin on S side of 91 Freeway in Coal Canyon, very near the dead end offramp 166 Comment
  IRVC26585  Astragalus didymocarpus var. didymocarpus Karlin G. Marsh 1983-4-11 s.n. Orange Laguna Beach: Sycamore Hills; dirt road surface of central ridge line. southern coastal Comment
  RSA554621  Astragalus trichopodus Scott D. White 1992-10-20 968 Orange Vicinity of city of Brea, Immediately N of Carbon Canyon Rd & E of Placentia Avenue +/-1mi (air) SSE of Tonner Canyon. 183 Comment
  UCR12616  Astragalus trichopodus subsp. leucopsis R. G. Sullivan 1972-4-16 720416- 8 Orange Santa Ana River Channel, river bottom near Coal Canyon Road 122 Comment
  IRVC18328  Astragalus trichopodus var. lonchus Karlin G. Marsh, S. Watkins 1977-3-30 Orange [Trabuco Canyon], Upper Trabuco Canyon Rd., 3mi from Live Oak Canyon Store; on both sides and on cliff above. Santa Ana Mountains Comment
  CDA23154  Atriplex Mark A. Elvin, D. G. Kelch 2006-12-9 5309 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  SD234358  Atriplex T. B. Salvato Salvato, Katie Kurtz, Mitch Provance. 2006-3-19 1906 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive (Tustin 7.5' Q) 6 Comment
  UC1980252  Atriplex R. E. Riefner Jr. 2006-8-3 06 -383 Orange City of Irvine, MacArthur Blvd. ca. 0.2 mi S of Jamboree Rd. near Bonita Creek. Comment
  UC1980276  Atriplex R. E. Riefner Jr. 2006-2-12 06 -24 Orange North end of City of San Clemente, along I-5 Freeway North, immediately south of Camino de Estrella exit ramp. Comment
  UCD169475  Atriplex amnicola R. E. Riefner Jr. 2006-2-12 6- 21 Orange South Coast, N end of City of San Clemente, along N-bound I-5, immediately S of Camino de Estrella exit ramp. 66 Comment
  UCR203880  Atriplex amnicola R. E. Riefner Jr. 2005-9-9 05- 659 Orange South Coast, city of Dana Point, beach south of Salt Creek, past Ritz Carlton Hotel on Pacific Coast Hwy 2 Comment
  SBBG121999  Atriplex amnicola R. E. Riefner 2005-9-16 05 -666 Orange E of Bayside Drive at confluence with Big Cyn, upper Newport Bay 6 Comment
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Dec 13 2012
  UCR158035  Atriplex argentea Adrian Wolf 1998-7-1 405 Orange South Coast, Peters Canyon Channel, east of channel near Harvard Ballfield, between Harvard Ave. & creek, south of Warner Ave. to Barranca 15 Comment
  POM48694  Atriplex argentea I. M. Johnson 1924-8-29 s.n. Orange Corona Del Mar Comment
  JEPS59563  Atriplex californica L. M. Booth 1932-5-19 1068 Orange Newport Bay Comment
  POM293160  Atriplex californica Lyman Benson 1946-4-27 12054 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  RSA65401  Atriplex californica F. W. Peirson 1923-3-25 3414 Orange Aliso Creek, near Laguna Beach. Comment
  RSA743453  Atriplex californica Fred M. Roberts 2008-7-10 7073 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
  RSA65358  Atriplex canescens F. W. Peirson 1924-8-29 4528 Orange Corona Del Mar Comment
  SD40182  Atriplex canescens Edith A. Purer 1932-8-31 4869 Orange Near Route 101. Comment
  UCD97285  Atriplex canescens Lawrence M. Booth 1932-7-23 1301 Orange Corona del Mar, Newport Beach. Comment
  CAS-BOT-BC170191  Atriplex canescens subsp. canescens I. M. Johnston 1918-9-3 2149 Orange Laguna Beach 6 Comment
  UCR98213  Atriplex canescens subsp. canescens B. G. Pitzer 1996-4-30 2789 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  POM156676  Atriplex coulteri L. R. Abrams 1903-4-18 3270 Orange Near San Juan Capistrano Comment
  POM201920  Atriplex coulteri L. M. Booth 1932-5-18 s.n. Orange Newport Bay. Comment
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Feb 3 2015
  RSA542647  Atriplex coulteri Fred M. Roberts, K. G. Marsh, G. A. Marsh 1988-4-26 3951 Orange Pelican Hill, east slope above Los Trancos Canyon , 0.4km ESE Pelican Hll survey Mark. 200 Comment
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Oct 16 2013
  CAS-BOT-BC170606  Atriplex glauca A. C. Sanders 2008-4-29 35139 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff's trianing facility, c. 1.5 mi. SW of Santiago Reservoir, Black Star Canyon 7.5' - Peninsular Range, Santa Ana Mtns. 335 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
  UCR127689  Atriplex glauca D. E. Bramlet 1994-2-27 2365 Orange South Coast, Roadside, some 120 m east of intersection of Irvine Ave. and University Drive, c. 1 m south of University Drive Comment
  UCR130490  Atriplex glauca R. E. Riefner Jr. 2002-5-4 02- 101 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  RSA743659  Atriplex glauca R. E. Riefner Jr. 2006-3-19 6 -52 Orange City of Newport Beach, near Avocado Ave. and San Nicolas Dr. 77 Comment
  RSA741477  Atriplex halimus R. E. Riefner 2008-12-23 8 -375 Orange City of Laguna Beach, S Crescent Bay, Cliff Dr. at Circle Way. 5 Comment
  UCD97423  Atriplex hortensis B. A. Madson 1938-8-31 s.n. Orange Orange County. Comment
  IRVC27506  Atriplex lentiformis Mark A. Elvin 2004-5-2 3423 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA18531  Atriplex lentiformis subsp. breweri C. B. Wolf 1927-7-23 667 Orange Along the coast just north of San Clemente. Comment
  RSA743476  Atriplex lentiformis subsp. lentiformis Fred M. Roberts, Carol A. Roberts 2008-9-28 7112 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  CLARK-A1528-1186  Atriplex leucophylla John C. Roos 1949-10-1 4677 Orange Doheney Beach Comment
  SD181601  Atriplex leucophylla Valerie Soza, K Clark,L Gross,W Miller,F Roberts,G Wallace 2001-4-4 1117 Orange Anaheim Bay, Seal Beach, U.S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge; Seal Beach 7.5' quad. Coastal sand dunes. 3 Comment
  RSA593869  Atriplex pacifica R. E. Riefner, CA Parks Service 1994-5-22 94 -377 Orange San Clemente State Beach, south bluffs Comment
  RSA247  Atriplex pacifica J. T. Howell 1927-7-17 420 Orange Near Laguna Beach. 30 Comment
  UCR109501  Atriplex rhagodioides Robert Noll 1999-7-8 s.n. Orange Newport, Back Bay Drive across from Dept. of Fish and Game parking lot, SE side of bay approximately opposite the end of 22nd St. .66 Comment
  IRVC16607  Atriplex rosea G. Marsh 1970-6-17 Orange Santa Ana River, south bank near Coast Hwy. Newport Beach Comment
  SD253974  Atriplex semibaccata Jim Riley 2013-10-15 121 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 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
  RSA5823  Atriplex semibaccata C. B. Wolf 1932-6-28 3799 Orange 100 ft. east of pump house at East End Camp. 9 Comment
  RSA65402  Atriplex semibaccata Raymond J. Dobbs 1924-7-3 5389 Orange Laguna Beach. Comment
  RSA252  Atriplex serenana J. T. Howell 1927-7-22 459 Orange North of Botany Garden, Rancho Santa Ana. 274 Comment
  SEINET4136211  Atriplex suberecta Tom Perring, Tracy Pinckard 1994-3-2 s.n. Orange South Coast: Tustin, Marine Helicopter Station at the corner of Moffett Drive and Jamboree Rd.; 0 11 Comment
  RSA703646  Atriplex suberecta R. E. Riefner Jr. 1999-5-22 99 -292 Orange City of Dana Point, west of Pacific Coast Hwy., vicinity of Salt Creek Park and Ritz Carlton Hotel. 15 Comment
  RSA232220  Atriplex subspicata James Henrickson 1970-8-22 s.n. Orange 2.5 miles NNW of Huntington Beach 0 Comment
  UCR130484  Atriplex triangularis R. E. Riefner Jr. 2003-8-31 03- 340 Orange South Coast, Costa Mesa, Talbert Regional Park, Discovery Walk Trail and Balboa Ave. 12 Comment
  IRVC25412  Atriplex watsonii Fred M. Roberts, Wayne Ferren 1987-4-8 3359 Orange Upper Newport Back Bay, west side, North Star Beach, 0.8km N Coney Island, Newport Beach 0 Comment
  POM265719  Atriplex watsonii J. C. Roos 1937-9-1 2157 Orange Seal Beach. Comment
  RSA453974  Atriplex watsonii Anstruther Davidson 1902-09 1767 Orange Newport Beach. 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
  RSA542561  Avena barbata Fred M. Roberts 1989-3-17 4204 Orange Aliso-Wood Canyon Regional Park: Aliso Canyon, 3.4 kilometers SSE Moulton Peak., UTM 3711900m N, 432900m E 55 Comment
  RSA697311  Avena fatua Keith E. Hoffmaster 1936-4-14 s.n. Orange Santa Ana Comment
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Nov 20 2011
  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
  SEINET14287461  Avena fatua R. Walker 1967-12-31 176 Orange Olive, ca 200 yds N of Lincoln Ave on Santa Ana Canyon Rd. 46 Comment
  RSA17461  Azolla filiculoides Carl B. Wolf 1936-9-21 8273 Orange Rancho Santa Ana, Santa Ana Canyon 121 Comment
  UCSB52947  Azolla filiculoides Roberts, Fred; Polek, M. 1983-11-16 Orange Newport Beach; upper Newport Back Bay near Back Bay Drive, 3.0 km. W UCI campus center 2 Comment
  CHSC26009  Baccharis douglasii James Henrickson 1970-8-22 5292 Orange 2 1/2 miles NNW of Huntington Beach in dry northern part of Bolsa Chica Salt Marsh. 0 Comment
  IRVC7609  Baccharis douglasii Charles W. Sexton 1972-7-17 Orange Bolsa Chica salt marsh southern coastal 0 Comment
  POM201738  Baccharis douglasii L. M. Booth 1932-6-28 1222 Orange Bolsas Marsh. Comment
  RSA93210  Baccharis douglasii F. W. Peirson 1924-8-29 5092 Orange 3 miles N of Huntington Beach Comment
  RSA663210  Baccharis emoryi R. E. Riefner 2000-3-26 20 -153 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of major stream fork along W. channel drainage 335 Comment
  RSA768505  Baccharis emoryi Justin M. Wood 2009-12-1 1389 Orange Santa Ana River: marsh just upstream of Pacific Coast Highway. 0 Comment
  RSA792937  Baccharis emoryi R. F. Thorne 1984-1 s.n. Orange Newport Back Bay. Comment
  JEPS30717  Baccharis glutinosa Peter H. Raven 1961-10-15 16861 Orange 2 mi se of Sunset Beach (Coast Highway); Coast Highway Comment
  RSA650812  Baccharis glutinosa Daniel Truong 1991-5-13 26 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  RSA653414  Baccharis malibuensis R. E. Riefner, A. Wolf 2000-8-23 20 -732 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
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Jan 6 2018
  UCR205874  Baccharis malibuensis R. E. Riefner Jr. 2008-6-25 08- 175 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Road 483 Comment
  IRVC29757  Baccharis pilularis Barry S. Nerhus, Mark A. Elvin 2006-11-4 10 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  RSA549989  Baccharis pilularis Scott D. White 1992-9-23 84 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
  RSA703357  Baccharis pilularis Fred M. Roberts, Laura Cohen 2004-2-13 6024 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Shady Canyon tributary to Cristianitos Cyn., 1.34 km NW Sycamore Gate, 0.85 km W of Cristianitos Road. 156 Comment
  RSA731920  Baccharis pilularis Fred M. Roberts, Sandy Leatherman 2007-11-27 6659 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  CHSC13483  Baccharis salicifolia T. R. Casale 1974-4-11 7 Orange Ca. 1.3 mi NE of the Mission San Juan Capistrano on Hwy 24. 42 Comment
  RSA5325  Baccharis salicifolia B. D. Stark 1932-12-30 4470 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA685928  Baccharis salicifolia Fred M. Roberts 2003-3-27 5627 Orange Rancho Mission Viejo:Donna O'Neill Land Conservancy, Chistianitos Canyon, along North Ride Trail, 1.37 km N Sycamore Gate, 0.36 km W Chistianitos Rd. 114 Comment
  RSA712941  Baccharis salicifolia Fred M. Roberts 2005-10-3 6306 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
  RSA731951  Baccharis salicifolia Fred M. Roberts 2007-12-12 6707 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
  UCR223420  Baccharis salicifolia Dick Newell, Don Millar 2011-3-1 066 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  UC1532995  Baccharis salicifolia subsp. salicifolia Robert F. Thorne 1975-4-6 45577 Orange Head of Newport Bay Comment
  CAS-BOT-BC106668  Baccharis salicina Helen D. Geis 1902-1-1 548 Orange Unspecified Comment
  UCR247333  Baccharis salicina Dick Newell, Judy Booth 2013-10-6 341 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, North Main Divide Road 300 m NE of junction with Long Canyon Road 1035 Comment
  UCR66989  Baccharis salicina A. C. Sanders 1990-10-6 10190 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
  IRVC22976  Baccharis sarothroides Karlin G. Marsh 1986-12-15 Orange Santa Ana Canyon, Santa Ana River, south side, Horseshoe Bend, Yorba Linda 105 Comment
  RSA730993  Barbarea orthoceras Fred M. Roberts 2006-11-15 6467 Orange Santa Ana Cyn., Santa Ana RIver, north bank, 1.1 km ENE Imperial Hwy crossing. At river s edge at base of cement bank on sandy soil in narrow riparian herb community. 85 Comment
  CDA7901  Bassia hyssopifolia Adam Ontiveros 2008-7-8 PDR# 1543672 Orange Anaheim, 1750 S. Douglass Rd 0 Comment
  SBBG47294  Bassia hyssopifolia R. N. Philbrick 1973-8-31 Orange marsh just E of University of California, Irvine Comment
  CAS-BOT-BC75517  Batis maritima Peter H. Raven 1957-9-28 11389 Orange At north limits of Surfside. Comment
  RSA12654  Batis maritima C. B. Wolf 1934-7-29 6042 Orange Newport Bay. Comment
  UCR67007  Batis maritima A. C. Sanders 1990-10-6 10195 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  CAS-BOT-BC106423  Bebbia juncea var. aspera John Thomas Howell 1927-6-2 2412 Orange Southern Puente Hills in teh Santa Ana Canyon [Canon] 152 Comment
  IRVC22020  Bebbia juncea var. aspera D. Bramlet 1985-7-2 AH-1 Orange Anaheim Hills Golf Course, on knoll near #3 green, Anaheim 183 Comment
  SEINET3090330 Image available Beta vulgaris Cesareo Perez 1971-5-15 Orange Huntington State Beach Pacifico Cst. Hwy. Brookhurst Huntington Beach. Comment
  RSA730992  Bidens laevis Fred M. Roberts 2006-11-15 6466 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  SD236124  Bloomeria crocea A. C. Sanders, Fred M. Roberts 2008-5-6 35266 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, slope SE of road junction along ridge road, near head of Aqua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UCR190981  Bloomeria crocea A. C. Sanders, Fred M. Roberts 2008-4-22 34997 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  RSA652084  Bloomeria crocea Shlomo Gat 1959-5-12 38 Orange Hills in Orange county. Comment
  RSA0012750  Bloomeria crocea var. crocea Fred M. Roberts 2012-5-10 7575 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
  RSA113874  Bloomeria crocea var. crocea E. K. Balls 1956-5-17 21639 Orange Madrone Canyon, from plants native to area. grown from seed collection, June 19, 1949. Prop. No. 6309, Botanic Garden 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
  SD127868  Bolboschoenus maritimus subsp. paludosus Richard Marin 1971-5-11 M 71 80 Orange Corner of MacArthur Blvd. and University Drive, Irvine 0 Comment
  CDA1758  Bothriochloa barbinodis T. C. Fuller 1961-10-17 7155 Orange East side of Hwy. 101 Alt., opposite 2787 So. Pacific Coast Highway, Laguna Beach. 0 Comment
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Jul 8 2013
  UCR205990  Bothriochloa barbinodis Adrian Wolf 1997-5-20 009 Orange South Coast, northwest of city of Laguna Beach, 100 ft from Pine Crest Drive reservoir, upslope bank adjacent to the road 152 Comment
  UCSB50629  Bothriochloa barbinodis Roberts, Fred 1982-6-30 Orange Laguna Nigel, Niguel Hill, Pacific Island Dr; 2.0 km SE Aliso Park; 1.3 km E Bench Mark 133 Comment
  UCSB52876  Bothriochloa barbinodis Roberts, Fred 1983-3-16 Orange Laguna Beach, Sycamore Hills, central ridge; 1.4 km NNE jct of El Toro and Laguna Cyn Rds; 5.4 km ESE Signal Peak 177 Comment
  POM78671  Bowlesia incana Albert J. Perkins 1917-4-7 s.n Orange Silverado Canyon, Santa Ana Mts. Comment
  UCR222385  Bowlesia incana Mark A. Elvin 2003-1-26 2246 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  POM8809  Bowlesia incana P. A. Munz, R. D. Harwood 1920-4-24 3778 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 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
  UCR149498  Brachypodium distachyon Scott D. White, Michael Honer 2004-5-17 10385 Orange South Coast, City of Laguna Niguel. Ridges and open slopes directly N of the intersection of Crown Valley Parkway and Pacific Island Dr 183 Comment
  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
  UCR228806  Brassica geniculata Dick Newell, Don Millar 2011-5-10 149 Orange Peninsular Range; Santa Ana Mtns., along MWD service road between Outdoor Education Center and Fremont Canyon, 0.2 mi. above Peters Cyn. Rd. 193 Comment
  CDA24705  Brassica nigra T. C. Fuller 1962-4-5 8143 Orange East of Highway 101, San Clemente. 0 Comment
  RSA0015953  Brassica nigra A. C. Sanders 2012-5-2 7688 Orange Lomas de Santiago: Loma Ridge, Las Flores Canyon at west end of ridge 0.4 km ESE Orange County Emergency Operations Center (hill 1311) and 2.4 km WSW Irvine Lake Park. 362 Comment
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Nov 17 2018
  HSC6579  Brassica nigra Anonymous 1961-3-29 Orange Newport Beach above upper Newport Bay Comment
  OBI17601  Brassica rapa Kurt R. Neisess 1975-12-19 s.n. Orange In Yorba Linda Comment
  UCD114851  Brassica rapa Ira L. Wiggins 1965-12-5 20365 Orange Orange grove 2 mi. E. of Atwood on N. side of Orangethorpe Ave. Comment
  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
  RSA124713  Brickellia californica E. K. Balls, Percy C. Everett 1957-11-25 22836 Orange 1 mi. NE from Trabuco Oaks. 549 Comment
  RSA797477  Brickellia californica R. F. Thorne 1977-11-21 49990 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  UCR197680  Brickellia californica A. C. Sanders, Fred M. Roberts 2008-9-18 36067 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  SD240172  Brodiaea filifolia Jim Dice, Larry Vierheilig, Michael Lindsay 1996-5-9 Orange Aliso & Wood Canyons Wilderness Park. Aliso canyon, grassland on other side of bike path just N of Aliso creek. Comment
  LA13709  Bromus carinatus LeRoy Abrams; 1903-4-18 3271 Orange San Juan Capristrano Comment
  UCR191476  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-4-8 34751 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
  RSA678715  Bromus carinatus var. carinatus Fred M. Roberts, Dave E. Bramlet 2002-6-6 5525 Orange Santa Ana Mtns: Main Divide Truck Trail, Upper Indian Cyn., 1.7km W Trabuco Pk., (33 42' 13 N, 117 29' 34 W) 1268 Comment
  UC204884  Bromus carinatus var. carinatus R. L. Pendleton, F. M. Reed 1907-7-25 1195 Orange near Modjeska Falls (Lake Tahoe Region); Lake Tahoe Region Comment
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Sep 11 2013
  CAS-BOT-BC156204  Bromus catharticus John Thomas Howell 1956-3-11 30924 Orange Yorba Linda Comment
  RSA725588  Bromus catharticus Fred M. Roberts 2007-8-6 6560 Orange San Joaquin Hills: Laguna Beach, Laguna Cyn. on east side of Laguna Cyn. Rd. adj. to dog park, 1.2 km S (air) from El Toro Road and 1.8 km WSW Moulton Survey Mk. 52 Comment
  UCSB48111  Bromus diandrus Roberts, Fred 1981-4-12 Orange Santa Ana Mtns; San Juan Canyon, Hwy 74, 1.3 km by road E of San Juan Guard Stn; 0.9 km SE Juan Rancho Survey Mark 295 Comment
  RSA0089224  Bromus hordeaceus Fred M. Roberts 2014-4-21 7869 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  UCR191441  Bromus hordeaceus A. C. Sanders, Fred M. Roberts 2008-4-8 34723 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  POM202590  Bromus hordeaceus L. M. Booth 1932-5-12 1023 Orange Newport Bay. Comment
  RSA696604  Bromus laevipes Rankin s.n. Orange Silverado Comment
  HSC9305  Bromus madritensis subsp. rubens C. L. Hitchcock, C. V. Muhlick 1964-3-17 23060 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  UC149788  Bromus madritensis subsp. rubens H. M. Hall May, 1902 3283 Orange along Santa Ana River Santa Ana River 182 Comment
  CAS-BOT-BC161819  Bromus rubens Ira L. Wiggins 1966-2-18 20449 Orange Near end of County road, 0.5 mile west of entrance to Rancho Santa Ana. Comment
  UCR140797  Bromus rubens Robin G. Marushia 2004-5-4 015 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  RSA650420  Bromus rubens Howard Cook 1948-4-15 13 Orange Collected on highway 14, about 8 miles east of Fullerton. 91 Comment
  RSA696330  Bromus rubens Keith E. Hoffmaster 1928-4-25 s.n. Orange Santa Ana Comment
  RSA697680  Bromus rubens Elisabeth Norland 1929-4-11 s.n. Orange Cypress. Comment
  CAS-BOT-BC36892  Cakile edentula var. edentula A. Davidson M. D. 1907-9-1 1770 Orange Newport. Comment
  CLARK-A1528-915  Cakile maritima Patricia A. Andrews 1975-6-26 5905 Orange Capistrano Bay Beach 9 Comment
  UCR219802  Cakile maritima Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  UC1618044  Calandrinia Donald G. Nelson 1933-7-16 163 Orange hills n. Fullerton 76 Comment
  CAS-BOT-BC354307  Calandrinia breweri R. E. Riefner, Jr. 2008-3-5 08 -31 Orange Irvine Ranch Reserve, North Irvine Ranch, S of Windy Ridge Rd., ca 0.5 mi from West Fork of upper Fremont Canyon 508 Comment
  UCR203900  Calandrinia breweri R. E. Riefner Jr. 2008-5-15 08- 82 Orange Irvine Ranch Reserve, north Irvine Ranch, eastern Fremont Canyon area, Black Star SCE Road 549 Comment
  UCR191452  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-4-8 34757 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  UCR222642  Calandrinia ciliata D. E. Bramlet 2008-4-28 4245 Orange Peninsular Range; Santa Ana Mtns. Foothills, east fork of upper Weir Canyon, 1.2 km east of the main canyon and 91 m west of the upper boundary of Gypsum Canyon 409 Comment
  CAS-BOT-BC438322  Calandrinia ciliata Ira L. Wiggins 1966-3-5 20522 Orange Along Highway S-18 about 2 mi. E. of El Toro. Comment
  RSA562810  Callicore rosea Steve Boyd, Timothy S. Ross 1992-5-20 7482 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
  UCR217462  Callistemon citrinus Mark A. Elvin 2003-2-23 2309 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  CDA5114  Callistemon viminalis R. E. Riefner Jr. 2007-3-18 07 -139 Orange City of Newport Beach, north shore of Newport Bay, North Star Beach, general vicinity of North Star Lane and Polaris Drive. Comment
  RSA0013958  Calochortus catalinae Fred M. Roberts 2008-5-7 6938 Orange Lomas de Santiago: Loma Ridge, Limestone Ridge between Dripping Spr. and Limestone Cyn., 3.5 km NW Bolero Lookout and 1.7 km E Bee Peak. Irvine Ranch Conservancy. 481 Comment
  RSA750699  Calochortus catalinae D. E. Bramlet 2008-3-26 4124 Orange Bee Cyn. Bowerman landfill site. 148 m S of the Bee Cyn Access Road, 296 m W of the landfill entrance. Comment
  RSA777234  Calochortus catalinae Orlando Mistretta, Christine Mistretta 2010-4-23 5073 Orange Vicinity of Tonner Cyn. Along Southern Califonia Edison Transmission Line corridor (Segment 8, map sheet 83 per TRTP survey 2010) 338 Comment
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Feb 24 2018
  POM23718  Calochortus splendens Russell S. Woglum 1938-5-8 1617 Orange Ortega Highway between Capistrano and Elsinore. Comment
  RSA118  Calochortus splendens J. T. Howell 1928-4-7 895 Orange Bee Canyon, Rancho Santa Ana 152 Comment
  UCR52320  Calochortus splendens R. Ascanio 1988-5-25 s.n. Orange Hwy 74 c. 5 mi east of San Juan Capistrano Comment
  RSA769610  Calochortus weedii E. W. Lathrop 1974-6-27 7417 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 396 Comment
  RSA0042761  Calochortus weedii J. Vlahos 1934-6-2 s.n. Orange Hills around Orange Co. Park. Comment
  SEINET5259809  Calochortus weedii Unknown 1995-7-3 29 Orange from Hugh McDonald's living collection; growing in Berkeley, CA Comment
  RSA0014068  Calochortus weedii var. intermedius Fred M. Roberts, Richard E. Riefner 2010-5-30 7020 Orange Santiago Canyon Rd. in small canyon below Irvine Mesa, 1.1 km SE Silverado Sch., c.a. 2 km by road SE Silverado Cyn. Rd. junction 337 Comment
  RSA539374  Calochortus weedii var. intermedius Fred M. Roberts, Carol Roberts 1988-6-2 4040 Orange Santa Ana Mountains: Silverado Canyon, Maple Springs Truck Trail, 4.3 kmilometers above gate, 1.0 kilometer WSW Bald Peak. 820 Comment
  RSA581433  Calochortus weedii var. intermedius Fred M. Roberts 1989-6-7 4376 Orange Santa Ana Mountains: Upper Gypsum Canyon along divide between Gypsum and Blind Canyon, 6.3 kilometers WSW Sierra Peak. 411 Comment
  RSA588720  Calochortus weedii var. intermedius Fred M. Roberts, D. Bontrager 1990-6-5 4676 Orange Rancho Mission Viejo: Lower Canada Gobernidora, ca. 3.1 km W Point Rancho Survey Marker. 122 Comment
  RSA773550  Calochortus weedii var. intermedius Fred M. Roberts, Robert Allen, Ron Parsons, Mary Gerritsen 2008-6-8 7034 Orange Lomas de Santiago: Loma Ridge, West Loma Ridge Road at Calochortus Ridge, 2.5 km NNW Bee Peak. Irvine Ranch Conservancy 393 Comment
  UCR119314  Calochortus weedii var. intermedius R. E. Riefner Jr. 2000-6-26 20- 581 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running N from Baker Canyon Road 305 Comment
  UCR132888  Calochortus weedii var. weedii Adrian Wolf 2000-6-20 464 Orange Santa Ana Mtns., North Ranch Policy Plan Area, 0.62 km NNW of mouth of Black Star Canyon 305 Comment
  RSA749642  Calycadenia tenella D. E. Bramlet 2008-4-15 4178 Orange Hicks Cyn., 301m E Haul Rd, & 1.4km N of the Bee Cyn Access Rd. 206 Comment
  UCR16115  Calystegia macrostegia S. Riddell 1973-5-17 730517- 22 Orange Hwy S-18, 10 mi east of Interstate Hwy 5 91 Comment
  RSA598972  Calystegia macrostegia subsp. arida Scott D. White 1997-3-28 4843 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  RSA650822  Calystegia macrostegia subsp. arida Daniel Truong 1991-5-13 17 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  RSA0126614  Calystegia macrostegia subsp. cyclostegia Fred M. Roberts 2012-4-27 7537 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
  RSA0089225  Calystegia macrostegia subsp. intermedia Fred M. Roberts 2014-4-21 7850 Orange South Coast: San Joaquin Hills: Laguna Lake 1 (Upper Laguna Lake), south basin. 113 Comment
  RSA683073  Calystegia macrostegia subsp. intermedia Fred M. Roberts 2003-3-13 5591 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1,320m NW Sycamore Gate and 880m W Cristianitos Rd. 179 Comment
  CSUSB669  Calystegia macrostegia subsp. longiloba Donna C. Stonewall 1966-4-8 23 Orange Modjeska Canyon Modjeska Canyon Road, Modjeska Canyon 365 Comment
  HSC6359  Calystegia soldanella B. Francis 1964-5-2 42 Orange .5 mi. S of Newport Comment
  UCSB21666  Calystegia soldanella Keefe, Joseph 1967-3-26 Orange California Highway 1, Bolsa Bay, 0.4 mile south of Warner Avenue, Sunset Beach 1 Comment
  UCR157710  Camissonia Adrian Wolf 1998-5-15 294 A Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  RSA72203  Camissonia bistorta F. W. Peirson 1923-3-26 3411 Orange Canada Salada Creek, field about 1/4 mile from beach Comment
  CHSC10115  Camissonia cheiranthifolia subsp. suffruticosa J. W. Johnson 1960-8-18 Orange Newport Beach. Beside Newport Bay by Highway 101. Comment
  NY679591  Camissonia cheiranthifolia subsp. suffruticosa L. Abrams 1917-6-23 6576 Orange Balboa. Comment
  POM180497  Camissonia cheiranthifolia subsp. suffruticosa L. R. Abrams 1917-6-23 6576 Orange Balboa Comment
  UCR271006  Camissonia lewisii Mitch Provance, Travis Kegel 2016-4-8 416- 57 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
  UCR193415  Camissonia micrantha A. C. Sanders, Fred M. Roberts 2008-6-17 35522 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 230 Comment
  JEPS31711  Camissonia strigulosa Alice King March, 1908 Orange Anaheim Plains Comment
  CAS-BOT-BC160448  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange Sunset Beach Comment
  UC635403  Camissoniopsis intermedia H. L. Mason 1926-4-25 2926 Orange 5 mi s Laguna Comment
  CAS-BOT-BC37128  Capsella bursa-pastoris Ira L. Wiggins 1966-3-5 20499 Orange Along Highway S-18, about 4.5 miles east of Laguna Beach. Comment
  CAS-BOT-BC37595  Cardamine californica C. B. Wolf 1931-3-6 1851 Orange West slope of Santa Ana Mountains. Trabuco Canyon. Trabuco Camp Ground. 609 Comment
  LA204277  Cardamine californica W. Pequegnat; 1938-3-19 sn Orange Near Holy Jim Stream, Santa Ana Mts 670 Comment
  POM188931  Cardamine californica var. integrifolia Marcus E. Jones 1931-3-23 s.n. Orange Laguna. Comment
  RSA484624  Cardamine californica var. integrifolia E. Crow 1929-4-9 305 Orange Corona Skyline road, Santa Ana Mts. Comment
  RSA697446  Cardaria draba Elisabeth Norland 1929-4-11 54 Orange Cypress. Comment
  POM187375  Cardaria draba E. R. Johnson 1928-02 s.n. Orange Talbert, Orange County Comment
  UCR52601  Carduus pycnocephalus Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 Comment
  RSA562751  Carduus pycnocephalus Steve Boyd, Timothy S. Ross 1992-5-19 7427 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
  SD245174  Carex barbarae R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49573 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  CAS-BOT-BC118490  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Unspecified Comment
  POM1460  Carex praegracilis I. M. Johnston 1918-5-5 1890 Orange El Toro. 76 Comment
  POM202036  Carex praegracilis L. M. Booth 1932-7-1 1234 Orange Anaheim Marsh Comment
  UC212128  Carex praegracilis I. M. Johnston 1918-5-5 1890 Orange El Toro 76 Comment
  UCR193039  Carex praegracilis A. C. Sanders, Fred M. Roberts 2008-6-17 35496 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-BC118493  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Santa Ana, Peat lands Comment
  UC796593  Carex praegracilis Helen D. Geis 1902-4 Orange Comment
  RSA0026256  Carex spissa Fred M. Roberts 2013-6-12 7794 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  RSA725519  Carex spissa Fred M. Roberts, Robert L. Allen 2007-9-28 6605 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  UCSB52779  Carex tumulicola Boutin, F. 1967-4-23 Orange San Clemente Island: E side of island; next major drainageway and canyon SE of Lemon Tank; at seasonal pool Comment
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Dec 13 2020
  SEINET10495945  Carissa macrocarpa David B. Dunn 1971-8-13 Dunn 18121 Orange Cultivated plants vicinity of Laguna Beach, CA. Comment
  RSA696447  Carpobrotus chilensis Minor Warne 1934-4-7 s.n. Orange New Port Beach Comment
  SEINET10447228  Carpobrotus chilensis Charlene A. Bennett 1976-7-22 Bennett 444 Orange Cultivated and native plants collected around the San Clemente Beach area. 3 Comment
  UCR193317  Carpobrotus edulis A. C. Sanders, Fred M. Roberts 2008-6-17 35470 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA643429  Carthamus baeticus R. D. Goeden, D. W. Ricker 1965-7-7 s.n. Orange Puente Hills: Brea Blvd. at Tonner Cyn Rd. confluence of Brea and Tonner Canyons, NE edge of Brea 146 Comment
  RSA542505  Castilleja affinis Fred M. Roberts 1987-3-31 3297 Orange Lomas de Santiago: Lomas [Loma] Ridge, upper Serrano Canyon, east fork, reservoir, 2.7 kilometers SE Bolero Lookout. 350 Comment
  RSA689448  Castilleja affinis Scott D. White, Amanda Duchardt 2003-4-10 9002 Orange Santa Ana Mountain Foothills: Ridges and east-facing canyons above Trampas Canyon. 122 Comment
  RSA0010908  Castilleja affinis Keith E. Hoffmaster 1927-4-8 530 Orange Santa Ana Mountains. Comment
  UCSB12538  Castilleja affinis subsp. affinis Whittington, M. 1962-4-20 Orange Modjeska grade road; between Modjeska and Trabuco Canyon Comment
  RSA789224  Castilleja exserta subsp. exserta Naomi Fraga 2009-5-11 2717 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  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
  UCR223958  Castilleja exserta subsp. exserta Fred M. Roberts 2008-4-9 6866 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
  RSA400601  Castilleja foliolosa P. A. Munz, R. D. Harwood 1920-4-24 3745 Orange Sierra [Freemont] Canyon, Santa Ana Mts. 366 Comment
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Sep 25 2011
  RSA160583  Castilleja foliolosa J. D. Olmsted 1959-5-1 521 Orange N of Hidden Ranch in Black Star Canyon and 100 yards NW of Rattlesnake Rock, 5 miles E of Irvine Res, Snta Ana Mtns to Irvine Lake. 747 Comment
  UC885188  Castilleja foliolosa I. W. Clokey 1932-3-1 5342 Orange Laguna Beach Comment
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Aug 31 2016
  UCSB56517  Castilleja foliolosa Anderson, J. 1966-3-7 Orange San Joaquin Hills; near bottom or Moro Canyon 91 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
  SD245474  Castilleja minor subsp. spiralis Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49584 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
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Jun 16 2016
  RSA429527  Caulanthus heterophyllus M. B. Dunkle 1935-3-3 4351 Orange San Juan Canyon. 457 Comment
  UCR208965  Caulanthus heterophyllus D. E. Bramlet, Fred M. Roberts 2003-5-1 3429 Orange Donna O'Neill Reserve, west of Cristianitos Road 121 Comment
  RSA0054976  Ceanothus Keith E. Hoffmaster 1934-7-15 108 Orange Santa Ana mts. (Santiago can). Comment
  UCR246520  Ceanothus crassifolius Fred M. Roberts, Sandra L. Leatherman 2013-2-13 7721 Orange Santa Ana Mountains, ridge south of central Santiago Canyon, near Joplin Trail, 3.7 km southeast of the town of Modjeska 800 Comment
  CAS-BOT-BC50806  Ceanothus integerrimus P. C. Everett 1935-6-18 7214 Orange Santa Ana Mts., summit of Santiago Pk. 1731 Comment
  UCR139232  Ceanothus integerrimus Percy C. Everett 1935-6-18 7214 Orange Santa Ana Mtns., summit of Santiago Peak 1732 Comment
  LA44871  Ceanothus leucodermis W. Pequegnat; 1938-9-3 sn Orange Santa Ana Mountains, Ortega Rd 548 Comment
  RSA467  Ceanothus megacarpus J. T. Howell 1928-2-6 807 Orange Claymine Canyon, Sierra Peak, Santa Ana Mts. 244 Comment
  SD236395  Ceanothus megacarpus A. C. Sanders, Fred M. Roberts, Amber ONeal, D. E. Bramlet 2008-5-9 35301 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road, c. 1.25 mi ESE of Walnut Cyn Reservoir. 340 Comment
  CAS-BOT-BC50504  Ceanothus megacarpus var. megacarpus Cecil Hart 1928-5-27 s.n. Orange Laguna Beach Comment
  IRVC28916  Ceanothus megacarpus var. megacarpus Fred M. Roberts, Carol A. Roberts 1988-5-12 3963 Orange Anaheim Hills; Upper Deer Cyn, 7.7km W Sierra Peak. Southern Coastal 268 Comment
  RSA542422  Ceanothus megacarpus var. megacarpus Fred M. Roberts 1988-5-12 3963 Orange Anaheim Hills: Upper Deer Canyon, 7.7 km W Sierra Peak. 268 Comment
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Aug 23 2013
  SBBG4381  Ceanothus megacarpus var. megacarpus M. Van Rensselaer 1941-12-7 1748 Orange facing the sea and overlooking S Laguna, ca. 3 mi S of Laguna Beach Comment
  SBBG4382  Ceanothus megacarpus var. megacarpus M. Van Rensselaer 1941-12-7 1748 Orange facing the sea and overlooking S Laguna, ca. 3 mi S of Laguna Beach Comment
  RSA797657  Ceanothus oliganthus Robert F. Thorne, E. W. Lathrop 1977-5-18 49760 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail Comment
  SBBG128668  Ceanothus oliganthus R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49699 Orange Sierra Peak; Santa Ana Mtns Comment
  RSA398910  Ceanothus oliganthus var. oliganthus Christopher Davidson 1977-5-18 5599 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  SD42370  Ceanothus oliganthus var. orcuttii P. C. Everett 1935-6-19 7234 Orange Santa Ana Mts., Main divide motorway junction with Tabuco Canyon Truck trail. 1219 Comment
  UCSB3954  Ceanothus oliganthus var. orcuttii Kamb, Peter 1948-6-19 Orange Holy Jim Canyon, Santa Ana Mts. 609 Comment
  SEINET10852447  Ceanothus oliganthus var. sorediatus Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 7 Orange Cleveland National Forest, 2 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. 957 Comment
  LA44892  Ceanothus palmeri W. Pequegnat; 1938-8-11 sn Orange Santa Ana Mountains, Santiago Peak 1734 Comment
  UC1071231  Ceanothus papillosus A. Lewis May 1934 424 Orange Trabucco Canyon Cleveland National Forest, Elsinore Quad. Comment
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Nov 15 2008
  RSA5303  Ceanothus papillosus var. roweanus B. D. Stark 1933-1-5 1754 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  UCD169754  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]. 457 Comment
  CAS-BOT-BC277101  Centaurea melitensis John Thomas Howell 1927-6-20 2558 Orange On north side of Santa Ana Canon [Canyon] 228 Comment
  RSA226629  Centaurea melitensis Christopher Davidson, Gerald L. Benny 1971-6-15 1549 Orange Brea Canyon, 0.5 mi. N of Central Ave, along Brea Cr, near bridge. Comment
  RSA647885  Centaurea melitensis Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 35 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 243 Comment
  RSA650813  Centaurea melitensis Daniel Truong 1991-5-5 4 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  SEINET2073548  Centaurea melitensis R. Beal 1980-5-6 Orange Dana Point, above Pacific Ocean, growing in hard-packed sand of sand hill. Comment
  RSA0040038  Centranthus ruber Anonymous 1933-10-13 s.n. Orange Santa Ana. Comment
  SBBG36843  Centromadia parryi subsp. australis D. D. Keck 1933-9-29 2537 Orange Seal Beach; ISOTYPE Comment
  RSA5286  Cercocarpus betuloides Carl B. Wolf, B. D. Stark 1932-12-19 s.n. Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  CAS-BOT-BC142124  Cercocarpus betuloides var. betuloides E. R. Johnson 1929-4-11 1261 Orange Sierra Peak Trail, Santa Ana Mts. Comment
  SBBG14720  Cercocarpus betuloides var. betuloides P. H. Raven 1962-5-18 17753 Orange Main Divide Truck Trail at saddle ca. 1 mi N of Santiago Peak 1493 Comment
  SBBG128666  Cercocarpus betuloides var. betuloides R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49704 Orange Sierra Peak; Santa Ana Mtns 900 Comment
  RSA810  Chaenactis artemisiifolia J. T. Howell 1927-6-5 36 Orange just to E of Rancho Santa Ana 152 Comment
  SEINET7073425  Chaenactis artemisiifolia A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  UCR192737  Chaenactis artemisiifolia A. C. Sanders, Fred M. Roberts 2008-5-6 35224 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
  UCR193348  Chaenactis artemisiifolia A. C. Sanders 2008-5-28 35437 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  RSA695672  Chaenactis glabriuscula Anonymous s.n Orange Orange County park 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
  RSA695673  Chaenactis glabriuscula L. C. Hull 1934-4-29 s.n Orange Trabuco Canyon Comment
  POM351782  Chaenactis glabriuscula var. glabriuscula F. R. Fosberg 1931-6-21 5099 Orange Silverado Canyon. Santa Anita Mts. Comment
  POM6049  Chaenactis glabriuscula var. lanosa L. R. Abrams 1903-4-13 3254 Orange Buena Park Comment
  HSC7984  Chamaesyce albomarginata C. L. Hitchcock 1966-3-15 24140 Orange Stearns Lease, 1.5 mi. E of Brea. Comment
  RSA734739  Chamaesyce albomarginata L. C. Wheeler 1946-8-8 6225 Orange Imperial Highway 1/4 mi. west of Caroline Ave, 2 mi. east southeast of Brea. Comment
  RSA562820  Chamaesyce polycarpa var. polycarpa Steve Boyd 1992-5-20 7473 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
  RSA576457  Chamaesyce polycarpa var. polycarpa F. W. Peirson 1924-5-31 s.n. Orange 5 miles southeast of Laguna Beach. Comment
  IRVC850  Chamomilla suaveolens L. Burns 1965-4-6 Orange Comment
  IRVC26744  Chasmanthe floribunda Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3181 Orange UCI Arboretum Southern Coastal 15 Comment
  UC1221019  Cheilanthes newberryi Beecher Crampton 1963-5-7 6788 Orange ca. 11 mi ne San Juan Capistrano (State Hwy 74, Lower San Juan Canyon); Santa Ana Mts, Lower San Juan Canyon Comment
  RSA750067  Chenopodium album A. C. Sanders, Fred M. Roberts 2008-9-18 36065 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  UCR179762  Chenopodium album R. E. Riefner Jr. 2006-10-8 06- 484 Orange South Coast, Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Road 51 Comment
  RSA184151  Chenopodium album I. L. Wiggins 1965-10-25 20300 Orange Curbway on Dorothy Lane near intersection with Lincoln Avenue, Fullerton. Comment
  UC582775  Chenopodium ambrosioides P. A. Munz 1936-6-30 14172 Orange 5 mi s Garden Grove Comment
  UC284872  Chenopodium berlandieri P. A. Munz 1923-9-7 7746 Orange Santiago Peak Santa Ana Mts. 1722 Comment
  POM183953  Chenopodium californicum P. A. Munz 1932-3-29 12186 Orange Costa Mesa. Comment
  RSA749307  Chenopodium californicum Fred M. Roberts, Linda Farley 2008-3-28 7035 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber s Peak, Irvine Land Conservancy. 437 Comment
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Mar 23 2020
  UCR191466  Chenopodium californicum A. C. Sanders, Fred M. Roberts 2008-4-8 34774 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
  UCR209380  Chenopodium californicum Fred M. Roberts, Linda Farley 2008-3-28 7035 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
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Mar 23 2020
  UCSB52919  Chenopodium californicum Roberts, Jr., Fred 1983-3-10 Orange Dana Point Headlands; 0.4 km. W Dana Point Harbor; 0.7 km. S Richard Henry Dana School 80 Comment
  IRVC397  Chenopodium murale B. Newman 1965-3-31 Orange Corona del Mar, Jamboree Rd. Newport Beach Comment
  IRVC398  Chenopodium murale J. Morgan 1965-2-5 Orange Corona del Mar High School. Newport Beach Comment
  RSA752040  Chenopodium murale Fred M. Roberts 2008-3-27 6808 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  POM262154  Chenopodium murale L. M. Booth 1932-6-9 1175 Orange Santa Ana River, 1 mile from ocean. Comment
  UCR61247  Chlorogalum parviflorum Jeri Hirshberg 1988-7-7 s.n. Orange Santa Ana Mountains, Upper Blind Canyon, W-facing slopes below the transmission tower. Comment
  RSA260445  Chlorogalum pomeridianum Carl B. Wolf 1932-7-2 3828 Orange Carbon Canyon, 0.5 mile above La Vida Springs. 244 Comment
  UCR233744  Chlorogalum pomeridianum Fred M. Roberts 2008-6-12 7045 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge, along 'Calochortus Ridge' near West Loma Ridge Road north of Haul Road, 2.6 km NW of Bee Peak, Irvine Ranch Land Conservancy 417 Comment
  UCSB57087  Chloropyron maritimum subsp. maritimum Johnson, J. 1974-5-29 Orange East shore of upper Newport Bay, Newport Beach 1 Comment
  UC1618038  Chorizanthe Donald G. Nelson 1935-4-14 292 Orange near Pacific Electric Railway Station Newport Beach Comment
  UC1618060  Chorizanthe Donald G. Nelson 1935-6-22 325 Orange Corona del Mar Comment
  RSA562720  Chorizanthe fimbriata Steve Boyd, Tim S. Ross 1992-5-19 7423 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
  UCSB38063  Chorizanthe fimbriata var. fimbriata Roos, John 1965-6-16 Orange Dana Point near Doheney Beach. Comment
  RSA655025  Chorizanthe procumbens D. E. Bramlet 1994-6-23 s.n. Orange San Joaquin Hills. ''Pass area'' between Little Sycamore and Camarillo Canyons. The site is 945m of Camarillo Canyon Road and 5 m west of the existing dirt road. 122 Comment
  RSA678497  Chorizanthe procumbens Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5845 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive. 76 Comment
  UCSB52868  Chorizanthe procumbens Roberts, Fred 1983-4-24 Orange 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School 82 Comment
  CAS-BOT-BC255250  Chorizanthe staticoides Le Roy Abrams 1901-6-1 1807 Orange Mt. Santiago 914 Comment
  CAS-BOT-BC255253  Chorizanthe staticoides H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  RSA542527  Chorizanthe staticoides Fred M. Roberts, Kathy Keane 1988-5-25 3992 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker. 91 Comment
  RSA548860  Chorizanthe staticoides Coleen Cory 1990-5-24 s.n. Orange Rancho Mission Viejo: Trampas Canyon, c.a. 1.5km S Hwy 74 (Township 8 S, Range 7 W, sec. 2). 150 Comment
  RSA584706  Chorizanthe staticoides Fred M. Roberts, Kathy Keane 1988-5-26 4010 Orange Rancho Mission Viejo: hill above the confluence of Gabino Canyon and Christianitos Canyon, c.a. 1 km N TRW Testing facility. 157 Comment
  RSA584709  Chorizanthe staticoides Fred M. Roberts, Scott Wade 1989-6-21 4390 Orange San Joaquin Hills: Pelican Hill, c.a. 0.4km ESE summit. 194 Comment
  RSA588851  Chorizanthe staticoides Fred M. Roberts, Kathy Keane 1989-6-28 4392 Orange Laguna Niguel: Just beyond end of Le Conte Rd along ridge, 0.6 km SW summit of Niguel Hill. 195 Comment
  SD134404  Chorizanthe staticoides Craig Reiser 1992-6-11 Orange Laguna Niguel, ridge NE of intersection of Crown Valley Parkway and Pacific Island Drive Comment
  UC1442607  Chorizanthe staticoides Karlin G. Marsh 1977-10-5 Orange Ford Aeronutronics property near corner of MacArthur Blvd and Bison Ave. right-of-way; Newport Beach, Ford Aeronutronics property Comment
  UCR277171  Chrysanthemoides monilifera subsp. monilifera R. E. Riefner Jr. 2012-2-22 12- 40 Orange South Coast, city of Laguna Beach, south of Goff Island, Montage Resort, Treasure Island Park area, west of Pacific Coast Hwy 7 Comment
  IRVC17045  Chrysanthemum coronarium J. Schram 1965-4-14 Orange Calif. 1. Laguna Beach Comment
  UCR150049  Chrysanthemum coronarium L. C. Wheeler 1947-5-3 6474 Orange Newport Bay, Newport Bay Comment
  RSA97387  Cicuta bolanderi Joseph A. Ewan 1932-7-29 7729 Orange Large colony (plants 4-8 ft.) in backwater of marsh. Newport Lagoon Comment
  POM11896  Cirsium arvense Johnson, Ethelbert 1922-6-12 s.n. Orange Kalisco, east of Huntington Beach Comment
  UCD130549  Cirsium arvense P. B. Kennedy 1924-2-13 s.n. Orange Huntington Beach District. Comment
  RSA0059656  Cirsium occidentale var. occidentale Fred M. Roberts, David E. Bramlet 2003-6-6 5907 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Canyon, 0.86 km SSW Gato Gate and 0.39 km W of Cristianitos Road. 149 Comment
  UCR73109  Cirsium vulgare Scott D. White 1992-9-23 855 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Canyon Road and east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Canyon 183 Comment
  CAS-BOT-BC172419  Clarkia bottae Munz; Street; Williams 1919-5-3 2647 Orange Santa ana river Canyon Comment
  OBI5935  Clarkia bottae Carl B. Wolf 1932-7-2 3825 Orange Carbon Cyn, 1/8 mi below La Vida Springs 213 Comment
  RSA73302  Clarkia bottae F. W. Peirson 1924-5-31 4661 Orange Laguna Canyon, near Laguna Beach. 61 Comment
  SDSU8634  Clarkia bottae Ruth Haaf, Josephine Morehous 1932-5-28 Orange Carbon Canyon Comment
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Jan 24 2013
  RSA610412  Clarkia purpurea subsp. quadrivulnera R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  SEINET7067523  Clarkia purpurea subsp. quadrivulnera A. G. Vestal 1947-6-12 s.n. Orange Canyon Road to Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 444428mE, 3723792mN. Comment
  OBI12101  Clarkia purpurea subsp. quadrivulnera Barrett Anderson 1975-5-10 575 Orange Along hwy 74 137 Comment
  CAS-BOT-BC172351  Clarkia purpurea subsp. viminea Munz; Street; Williams 1919-5-3 2669 Orange Santa Ana River Canyon Comment
  UCR227632  Clarkia rhomboidea Robt. L. Allen 2003-6-22 12309 Orange Santa Ana Mountains, west-facing upper slope of Santiago Peak, along North Main Divide Road, c. 0.10 air mi northwest of Santiago Peak summit 1674 Comment
  UCR209667  Claytonia parviflora subsp. parviflora Fred M. Roberts 2008-4-16 6905 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  HSC17702  Claytonia perfoliata subsp. mexicana S. M. Clapp 1966-4-10 35 Orange 10 mi. into Silverado Canyon 183 Comment
  UC1136736  Claytonia perfoliata subsp. mexicana A. Lewis 1934-4-1 378 Orange Coal Mine; Corona Quad. 243 Comment
  UCR241062  Claytonia perfoliata subsp. perfoliata Dick Newell, Don Millar 2013-2-5 314 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon at mouth, 1/2 mi. NE of Irvine Dam spillway 213 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
  UCR250860  Clematis lasiantha Dick Newell, Judy Booth 2014-2-16 353 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Long Canyon Rd., 0.25 mi. east of El Cariso Hot Shot Camp 905 Comment
  RSA0027772  Clematis lasiantha Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49689 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  HSC25249  Clematis pauciflora Richard Spjut 1972-2-21 2216 Orange Santa Ana Mtns., Cleveland National Forest 305 Comment
  UC1201823  Clematis pauciflora R. W. 1933-4-1 Orange near Capistrano Comment
  RSA234519  Cleome isomeris James Henrickson 1970-7-24 4958 Orange 1.5 miles NW of Huntington Beach, along border of Bolsa Chica Salt Marsh at SW end of Huntington Beach Mesa. 2 Comment
  RSA66771  Cleome isomeris F. W. Peirson 1924-2-10 4529 Orange Balboa Beach, mainland near bridge Comment
  RSA329669  Cleome isomeris G. D. Wallace 1966-4-16 479 Orange Along Hwy 101 about 10 miles north of Camp Pendleton. Comment
  RSA449090  Cneoridium dumosum Alice Mohr 1917-1 s.n. Orange Laguna. Comment
  UCD116910  Cneoridium dumosum Raymond A. Evans 1951-3-23 s.n. Orange South of Laguna. 60 Comment
  RSA699998  Collinsia bicolor L. C. Hull 1934-4-15 s.n. Orange Laguna Hills Comment
  SEINET1908696  Collinsia concolor A. C. Sanders, Fred M. Roberts 2008-1 35026 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 366 Comment
  POM8762  Collinsia heterophylla Philip A. Munz, R. D. Harwood 1920-4-24 3747 Orange Santa Ana Mountains, Sierra [Freemont] Canyon. 366 Comment
  RSA542501  Collinsia heterophylla Fred M. Roberts, Karlin G. Marsh 1987-5-14 3446 Orange Upper Trabuco Canyon, Trabuco Canyon Trail, 2 km NNW Los Pinos Peak 856 Comment
  UCSB52879  Comarostaphylis diversifolia subsp. planifolia Roberts, Fred 1983-4-7 Orange Laguna Niguel; Niguel Hill, above Pacific Island Road, 1.7 km. SE Aliso Peak; 3.0 km. SSW Alicia Fire Station 239 Comment
  RSA751187  Conium maculatum A. C. Sanders, Fred M. Roberts 2008-6-17 35455 Orange Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  RSA657742  Conium maculatum Ken Greby 1985-4-18 7 Orange N side of Laguna Canyon Rd., 1 km NE of El Toro Rd. 53 Comment
  RSA699123  Conium maculatum J. Vlahos s.n. Orange Santa Ana River by Fairview. Comment
  IRVC9147  Convolvulus arvensis B. Gittins 1963-4-30 204 Orange 1617 Sandalwood St. Costa Mesa Comment
  OBI15328  Convolvulus arvensis Michael Ward 1970-8-22 v- 8 Orange Ca. 4 mi S of Seal Beach, NE of Pacific Coast hwy & Bolsa Chica St Pk at Bolsa Chica salt marsh Comment
  UCR138387  Convolvulus arvensis Scott D. White, Brian Leatherman 1997-6-12 5346 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  POM312786  Convolvulus arvensis D. Taylor 1952-10 327 Orange South of Chino near C I M Comment
  RSA38434  Convolvulus simulans E. L. Paddock 1943-5-3 s.n. Orange Graham & Loftus Oil Corp., 1 mile E of Brea Comment
  RSA831  Conyza bonariensis J. T. Howell 1927-9-24 755 Orange Santa Ana Botany Garden 152 Comment
  CDA23616  Conyza coulteri T. McCrainie, Mark A. Elvin 2006-9-23 9 Orange Southern Coastal; Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives, 1.7 km (air) north-northwest of UC Irvine campus center. Comment
  IRVC22979  Conyza coulteri Karlin G. Marsh 1986-12-8 none Orange Yorba Linda; Santa Ana Canyon, Santa Ana River, Featherly Park. Santa Ana Mountains Comment
  IRVC15219  Conyza coulteri Karlin G. Marsh 1977-9-8 none Orange Newport Beach; in arroyo between MacArthur Blvd. and Ford Aeroneutronics. southern coastal Comment
  UCR179759  Conyza floribunda R. E. Riefner Jr. 2006-10-8 06- 481 Orange South Coast, Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Road 51 Comment
  RSA412318  Cordylanthus maritimus subsp. maritimus L. M. Booth 1932-7-1 1233 Orange Newport Bay Comment
  RSA486865  Cordylanthus maritimus subsp. maritimus P. R. Atsatt 1971-6-15 s.n. Orange Newport Beach, Back Bay Comment
  RSA0045606  Cordylanthus pilosus R. H. McArthur 1934-5-19 s.n. Orange Live oak Canyon. Comment
  SEINET3079825 Image available Cordylanthus rigidus Kathy Harper 1988-7-16 Orange Cleveland National Forest, on Hwy 74 near El Cariso. Comment
  POM8121A  Cordylanthus rigidus subsp. setiger Philip A. Munz 1923-9-7 7745 Orange Santiago Peak, Santa Ana Mountains. 1646 Comment
  UC284871  Cordylanthus rigidus subsp. setiger P. A. Munz 1923-9-7 7745 Orange Santiago Peak Santa Ana Mts. 1645 Comment
  UCSB48241  Cordylanthus rigidus subsp. setiger Roberts, Fred 1981-7-21 Orange Santa Ana Mts.: 0.8km SE Blue Jay Camp Ground 934 Comment
  POM18125  Corethrogyne filaginifolia P. A. Munz 1923-9-7 7739 Orange Santiago Peak in Santa Ana Mountains. 1706 Comment
  RSA292463  Corethrogyne filaginifolia var. virgata James Henrickson 1972-10-21 8066 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
  RSA743452  Corethrogyne filaginifolia var. virgata Fred M. Roberts 2008-7-10 7072 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  IRVC24483  Cortaderia selloana Fred M. Roberts, G. A. Marsh 1986-2-28 2603 Orange Lateral to English Canyon along Vista Del Lago; 3.4km ENE El Toro Fire Station, in ravine at base of north-facing slope. Mission Viejo 236 Comment
  IRVC629  Cotula australis L. Burns 1965-4-30 Orange 19th Street. Costa Mesa Comment
  CLARK-A1528-929  Cotula coronopifolia Patricia A. Andrews 1975-6-26 5921 Orange Capistrano Bay Beach 9 Comment
  RSA728656  Cotula hispida R. E. Riefner 2006-2-12 06 -26 Orange City of San Clemente, N ca. 0.5 mi. along the beach from Ave. Del Mar/ San Clemente area. 3 Comment
  RSA773507  Crassula connata Fred M. Roberts 1999-5-14 5227 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon, 0.7 km NW Bolero Spring and 2.6 km SW Silverado School 490 Comment
  IRVC25205  Cressa truxillensis Fred M. Roberts 1986-11-4 3198 Orange Anaheim Bay, north of Hog Island, Seal Beach Naval Weapons Station 0 Comment
  RSA234516  Cressa truxillensis James Henrickson 1970-7-25 5055 Orange 2 miles NE of Huntington Beach near north end of Bolsa Chica Salt Marsh. 0 Comment
  RSA593876  Cressa truxillensis R. E. Riefner 1995-4-28 95 -115 Orange San Clemente State Beach. Comment
  UCR109780  Cressa truxillensis R. D. Goeden, Don W. Ricker 1965-7-7 s.n. Orange Tustin township, near Peters Canyon Channel, east of Santa Ana Marine Corps Air Station 61 Comment
  UCR158164  Cressa truxillensis Adrian Wolf 1998-5-27 333 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  POM260477  Cressa truxillensis Ella Carter 1941-08 2 Orange Near coast highway, Newport Beach. Comment
  RSA4829  Croton californicus James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. Station #1. Plant #3. Comment
  UC17567  Croton californicus C. W. Hamlin 1820-1 61 Orange Buena Park Comment
  UCD141988  Croton californicus G. L. Webster 1966-12-11 7480 Orange Dana Point. Comment
  SEINET9253096 Image available Croton californicus Czarnecki 1966-4-1 58 Orange Near Rancho Santa Ana at end of Orangethorpe Ave. Comment
  RSA713393  Crypsis schoenoides R. E. Riefner 2005-10-5 5 -706 Orange City of Yorba Linda, Santa Ana River bottom, N flood plain, near Yorba Linda Regional Park. 98 Comment
  POM8979  Cryptantha barbigera P. A. Munz, R. D. Harwood 3472 Orange Santa Ana Mountains, Silverado Canyon 549 Comment
  RSA640  Cryptantha clevelandii J. T. Howell 1928-2-25 837 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA798545  Cryptantha clevelandii R. F. Thorne, E. W. Lathrop 1977-5-18 49747 Orange Santa Ana Mountains: summit of Santiago Peak 1733 Comment
  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
  UCD119839  Cryptantha intermedia Beecher Crampton 1967-5-23 7957 Orange 4 miles east of Irvine UC - South Coast Field Station. Comment
  UCR5137  Cryptantha intermedia Barbara T. Gittins, O. F. Clarke 1966-3-19 897 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  IRVC15161  Cryptantha microstachys E. McRae 1965-4-8 Orange Costa Mesa Comment
  RSA0127598  Cryptantha microstachys Fred M. Roberts, Diane Etchison 2016-3-22 8028 Orange Lomas de Santiago: west of Irvine Lake and north of Santiago Canyon Road, southeastern slope of Hill 1332 near toe of slope, about 1.9km S Irvine Lake Dam spillway. 263 Comment
  RSA732272  Cryptantha microstachys A. C. Sanders 2008-4-29 35127 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
  RSA0029035  Cryptantha microstachys Keith E. Hoffmaster 1934-4-22 349 Orange Santiago Canyon near Silverado. Comment
  MACF018551  Cupressus forbesii Ken Zysk 1971-3-29 P 80 Orange Collected at Harding Canyon, off Harding Canyon Rd. 396-1402 Comment
  UC1281345  Cupressus forbesii H. E. McMinn 1935-6-22 3926 Orange at head Clay Mine Canyon (n end of Santa Ana Mts.); Santa Ana Mts., Clay Mine Canyon Comment
  NY16674  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6278 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UCR186680  Cuscuta T. B. Salvato, Katie Kurtz 2006-10-15 1913 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  JEPS47128  Cuscuta Alice King Jun 1908 Orange Santa Ana Comment
  SEINET905825  Cuscuta R. J. Barr 1967-1 67 -176 Orange East of el Toro, Santa Ana Mountains. 182 Comment
  POM201678  Cuscuta ceanothi L. M. Booth 826 Orange Santa Ana Canyon. Comment
  RSA38192  Cuscuta ceanothi P. A. Munz 1946-10-2 11555 Orange Santa Ana River bottom, Rancho Santa Ana. 122 Comment
  RSA503199  Cuscuta ceanothi G. D. Wallace, G. Cromwell 1966-4-16 457 Orange W edge of Cleveland Nat. For. about 5 mi. E of San Juan Capistrano, in the Santa Ana Mountains, in Hot Springs Canyon. Comment
  RSA545240  Cuscuta ceanothi R. F. Thorne 1967-08 41893 Orange Trabuco Canyon. Comment
  JEPS47118  Cuscuta salina L. M. Booth Oct 1933 Orange Newport Comment
  RSA201912  Cuscuta salina L. M. Booth 1933-10 s.n. Orange Newport Comment
  RSA151149  Cycloloma atriplicifolium P. H. Raven 1961-10-15 16848 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing 61 Comment
  IRVC14840  Cynara cardunculus B. Newman 1965-3-14 Orange Dana Point Comment
  RSA758901  Cynara cardunculus subsp. flavescens A. C. Sanders, Fred M. Roberts 2008-6-17 35474 Orange Lomas de Santiago, East Loma Ridge Spur Road near Hicks Cyn. Haul Rd. 353 Comment
  CAS-BOT-BC190298  Cynodon dactylon Ira L. Wiggins 1965-11-6 20353 Orange Kramer Oil Estates, near well No. 14, near end of county road to Rancho Santa Ana. Comment
  RSA0042531  Cynodon dactylon Fred M. Roberts 2013-5-30 7778 Orange Lomas de Santiago: Santiago Creek wash, at Santiago Canyon Road bridge (south side), 0.3km W jct. Silverado and Santiago Canyon Roads. 299 Comment
  RSA0026258  Cyperus eragrostis Fred M. Roberts 2013-6-12 7792 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  RSA0028026  Cyperus eragrostis Fred M. Roberts 2012-9-6 7699 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  RSA798098  Cyperus eragrostis Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49572 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  SBBG128577  Cyperus eragrostis R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49572 Orange San Juan Cyn at Lower Picnic Camp, just below Ortega Hwy (74); Santa Ana Mtns 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
  UCSB48015  Cyperus eragrostis Roberts, Fred 1980-6-30 Orange Irvine: near east end of Veeh Reservoir; at corner of Ridgeroute and Peralta Rd. 92 Comment
  CAS-BOT-BC114322  Cyperus esculentus John Thomas Howell 1927-7-18 2794 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  RSA443819  Cyperus esculentus Gordon Marsh 1975-7-28 s.n. Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel, just N of Warner St. bridge crossing, (No. C05) Comment
  RSA725529  Cyperus esculentus Fred M. Roberts 2007-9-11 6573 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  RSA5507  Cyperus esculentus Carl B. Wolf 1932-6-28 3761 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA731800  Cyperus involucratus Fred M. Roberts, Sandy Leatherman 2007-11-9 6641 Orange Santa Ana Mtns.: San Juan Canyon along San Juan Creek, 0.2km E community of San Juan Hot Springs. 222 Comment
  UCR64632  Cyperus niger F. W. Peirson 1924-10-19 5231 Orange Wintersberg. 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
  RSA0105083  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-16 12 -5 Orange City of Newport Beach, Corona del Mar, beach area west of Morning Canyon Road. 1 Comment
  SD248281  Cyrtomium falcatum R. E. Riefner 2011-7-7 11 87 Orange City of Dana Point, S of Mussel Cove, N of Salt Creek Beach Park. 4 Comment
  SD260850  Cyrtomium falcatum R. E. Jr. Riefner 2012-1-26 12 11 Orange City of Laguna Beach, Aliso Creek Beach, rocky intertidal area. 2 Comment
  CAS-BOT-BC190451  Dactylis glomerata Carl B. Wolf 1932-6-13 3715 Orange Fullerton, Rose Drive. 53 Comment
  UCR193769  Dactylis glomerata A. C. Sanders 2008-7-3 35717 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  RSA483  Datisca glomerata J. T. Howell 1927-7-3 263 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA791871  Datisca glomerata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49618 Orange Santa Ana Mountains: Bluffs above San Juan Creek, about 1 mile above San Juan Fire Station Comment
  RSA359608  Datisca glomerata W. Wisura, L. Aberbom 1986-9-9 4138 Orange Lower San Juan Picnic area, Ortega Hwy. Comment
  RSA733935  Datura stramonium Keith E. Hoffmaster 1934-6-27 5 Orange North Costa Mesa Comment
  RSA699551  Daucus pusillus J. Vlahos s.n. Orange Santiago Canyon Comment
  RSA732273  Daucus pusillus A. C. Sanders 2008-4-29 35126 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff s training facility, c. 1.5 mi. SW of Santiago Reservoir. 335 Comment
  RSA0048655  Daucus pusillus Keith E. Hoffmaster 1934-4-22 189 Orange Santa Ana Mts. [Orange or Riverside County] Comment
  CHSC26109  Deinandra fasciculata Roger Shelby 1970-8-22 Orange Ca. 4 mi. N. of Huntington Beach, 1 1/2 mi. So. of Warner Ave. off Pacific Coast Hwy. in Bolsa Bay area. 0 Comment
  UC480895  Deinandra fasciculata D. L. Crawford 1915-9-1 504 Orange Huntington Beach Comment
  CAS-BOT-BC383061  Deinandra paniculata R. E. Riefner, Jr. 2014-7-10 14 -236 Orange City of Laguna Beach, Laguna Canyon, Laguna Coast Wilderness Park, Laurel Canyon Trail near Post-Marker C, SW ca. 0.1 mi from the intersection of Laguna Canyon Rd. and El Toro Rd. 75 Comment
  CAS-BOT-BC413810  Deinandra paniculata R. E. Riefner, Jr. 2014-7-5 14 -215 Orange City of San Clemente, San Clemente State Beach, SSW ca. 100 m from the intersection of Ave. Calafia and South Ola Vista Rd. 40 Comment
  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
  UCR261690  Delphinium cardinale Dick Newell, Judy Booth 2014-6-22 381 Orange Peninsular Range; Santa Ana Mtns., Long Canyon Road, 0.2 mi. east of road to El Cariso Hotshot Camp 903 Comment
  RSA542412  Delphinium cardinale Karlin G. Marsh, Gordon Marsh 1989-6-25 s.n. Orange Santa Ana Mountains: Central Santiago Canyon, Santiago Truck Trail, ca. 4.4km SW Santiago Peak. 792 Comment
  UCR132978  Delphinium parryi Adrian Wolf 2000-4-15 460 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Baker Canyon Road 335 Comment
  RSA398525  Delphinium parryi N. C. Cooper 1944-6-4 1354 Orange San Juan Canyon, lower camp ground. 457 Comment
  UCR18228  Delphinium patens Richard B. Flagler 1975-5-2 s.n. Orange Silvarado Canyon Comment
  UCSB47986  Dendromecon rigida Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, 0.2km west of Trabuco Peak, Santa Ana Mtns. 1347 Comment
  RSA16474  Dendromecon rigida subsp. rigida Percy C. Everett 1935-6-19 7233 Orange Santa Ana Mtns.; Main Divide Motorway; 7mi. from summit Santiago Peak (se) 1280 Comment
  RSA171107  Dendromecon rigida subsp. rigida Robert F. Thorne 1963-7-26 32833 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA0073654  Descurainia pinnata subsp. halictorum Fred M. Roberts 2010-3-12 7183 Orange Southeast Coast: Dana Point Headlands: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  UCSB52467  Dichelostemma capitatum Roberts, Fred 1983-2-10 Orange Dana Point: hills, 0.7km NE Dana Hills High School 92 Comment
  SEINET219060  Dichelostemma capitatum subsp. capitatum J. McNeill 1969-3-19 3017 Orange Aliso Canyon ca. 5 km. south of Laguna Beach. 10 Comment
  UCR188938  Dichondra micrantha Robert DeRuff 2006-6-1 313 Orange Newport Beach, Upper Newport Bay, 23rd Street on west side of the Bay 11 Comment
  UCR158040  Dichondra occidentalis Adrian Wolf 1998-5-15 288 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  UCR242698  Dichondra occidentalis Fred M. Roberts 2012-5-10 7571 Orange Coastal Plains and Basins; Coastal foothills Region, 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
  SD152749  Digitalis purpurea Steve Boyd, Tim 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 homestea. 351 Comment
  SD247553  Diplachne fusca var. fascicularis R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49632 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs. Roadside ditch. Comment
  RSA0045521  Diplacus aurantiacus Jeanne Paxton 1934-4-21 s.n. Orange Modjeska Canyon. PR8. 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
  SD255235  Diplacus longiflorus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49795 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  SBBG28885  Diplacus puniceus N. C. Cooper 1944-6-4 1321 Orange Elsinore Mtn, Lookout at top 1066 Comment
  SEINET13777977 Image available Diplacus puniceus J. McNeill 1969-1 3001 Orange San Juaquin Hills, Coyote Canyon 200 Comment
  RSA605374  Diplotaxis muralis A. C. Sanders 1990-10-6 10186 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  RSA715248  Diplotaxis muralis A. C. Sanders 2006-5-6 32250 Orange South Coast: UC Irvine Arboretum, NE side of gardens towards Campus Dr. 15 Comment
  RSA16979  Diplotaxis muralis P. C. Everett 1936-3-20 7762 Orange Rancho Santa Ana, Santa Ana canyon from Botanic Garden, W of Adm bldg 198 Comment
  UCD114710  Diplotaxis tenuifolia W. W. Robbins 1931-5-11 2203 Orange Santa Ana. Comment
  UCR2563  Distichlis littoralis F. M. Reed 1928-2-10 5713 Orange South Coast, Arch Beach -61 Comment
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Apr 18 2006
  CAS-BOT-BC195672  Distichlis spicata Carl B. Wolf 1932-7-2 3815 Orange Carbon Canyon, 1/8 mi. below La Vida Springs 213 Comment
  SD28114  Distichlis spicata Carl B. Wolf 1932-7-2 3815 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  UCR193038  Distichlis spicata A. C. Sanders, Fred M. Roberts 2008-6-17 35495 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  UCSB47954  Distichlis spicata Roberts, D. 1980-5-4 Orange North end of Camino Capistrano Rd; 2nd telephone pole from the end 30 Comment
  UC2062535  Distichlis spicata subsp. spicata Hester L. Bell with Anna L. Bell 2002-5-1 259 Orange Shellmaker Road in Lower Newport Bay, near Shellmaker Island and Upper Newport Bay Reserve. Comment
  UCD64386  Distichlis spicata var. stolonifera C. B. Wolf Date Unknown 3815 Orange Orange Co. Comment
  UCD64446  Distichlis spicata var. stolonifera A. A. Beetle 1958-9-7 13, 072 Orange Newport. Comment
  RSA0019618  Dodecatheon clevelandii Scott D. White 2003-3-21 8809 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA627743  Dodecatheon clevelandii Scott D. White, Brian Leatherman 1998-1-26 6063 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, ca. halfway between Berkeley Av. and new freeway (Bonita Cyn.) 12 Comment
  RSA678732  Dodecatheon clevelandii subsp. clevelandii Fred M. Roberts, Laura Cohen 2000-3-24 5269 Orange Rancho Mission Veijo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 Comment
  CAS-BOT-BC41692  Draba cuneifolia var. sonorae Helen D. Geis 1902-1-1 529 Orange Santiago Creek. Comment
  CAS-BOT-BC41701  Draba cuneifolia var. sonorae Helen D. Geis 1902-3-29 s.n. Orange Santa Ana River. Comment
  IRVC20515  Dryopteris arguta Fred M. Roberts 1983-9-26 1120 Orange Lion Canyon, Chiquito Basin Trail, 3.3km NNE Lower San Juan Picnic Ground; 4.3km SSE Los Pinos Peak. Santa Ana Mountains 810 Comment
  RSA23661  Dryopteris arguta C. B. Wolf, E. R. Johnston 1939-3-16 3398 Orange Santa Ana Mountains: north side of Pleasant's Peak 1219 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
  UC905133  Dudleya R. V. Moran 1948-6-23 3097 Orange n-facing cliff near mouth of Aliso Canyon (s of Laguna Beach); ; near mouth of Aliso Canyon, S of Laguna Beach, Orange Co. 7 Comment
  CAS-BOT-BC109565  Dudleya blochmaniae subsp. blochmaniae Reid Moran 1950-4-24 3388 Orange San Clemente. Comment
  CAS-BOT-BC109566  Dudleya blochmaniae subsp. blochmaniae Reid Moran 1950-4-24 3388 Orange San Clemente, atop sea bluffs Comment
  RSA12839  Dudleya edulis C. B. Wolf 1934-12-29 2316 Orange San Clemente. Comment
  UC933206  Dudleya edulis Reid Moran 1949-7-2 3287 A Orange Aliso Canyon Laguna Beach Comment
  UC2059977  Dudleya edulis K. Nakai 1978-7-17 391 Orange Aliso Canon, ca. 200 yards from California Highway 1. Comment
  CLARK-A1528-2622  Dudleya lanceolata John C. Roos 1937-5-21 2338 Orange Santa Ana Comment
  POM296489  Dudleya lanceolata Lyman Benson 1950-4-29 I- 4339 Orange South end of San Clemente. Hill 1/2 mile from ocean. 152 Comment
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Oct 23 2014
  RSA170990  Dudleya lanceolata R. F. Thorne 1963-7-26 s.n. Orange Near Beek's Spring; Tin Mine Canyon; Trabuco District, Santa Ana Mountains, Cleveland National Forest. 716 Comment
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Apr 25 2011
  RSA637493  Dudleya lanceolata Valerie L. Soza, LeRoy Gross 1999-6-8 504 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA747701  Dudleya lanceolata Fred M. Roberts 2008-5-16 6974 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UCR119302  Dudleya lanceolata R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 456 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
  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
  RSA550595  Dudleya multicaulis Fred M. Roberts 1989-4-26 4319 Orange Santa Ana Mtns.: Lower Blind Canyon near mouth, 9.2km SW Sierra Peak, 1.0km N Irvine Lake spillway. 213 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
  RSA660284  Dudleya multicaulis Orlando Mistretta 1992-6-6 415 Orange Vicinity of Sierra Peak, (Historical locality), on old roadcut heading down to powerlines 695 Comment
  RSA747594  Dudleya multicaulis Fred M. Roberts 2000-5-19 5327 Orange Lomas de Santiago: Loma Ridge, ridge west of Bee Peak above Bee Cyn. landfill, 0.2 km W Bee Peak. 500 Comment
  UC536908  Dudleya multicaulis Lawrence M. Booth 1932-5-18 1054 Orange Newport Bay Comment
  UC792937  Dudleya multicaulis Reid Moran 1949-4-11 3216 Orange Emerald Bay Laguna Beach (Laguna Beach) 22 Comment
  UCR215300  Dudleya multicaulis Fred M. Roberts 2008-4-23 6925 Orange Lomas de Santiago, Loma Ridge, north end along Sheriff Rd., 1.6 km SE of Peters Canyon Reservoir dam 340 Comment
  RSA757323  Dudleya pulverulenta A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37192 Orange Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  RSA0062957  Dudleya pulverulenta subsp. pulverulenta Fred M. Roberts 2008-7-10 7076 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  RSA397833  Dudleya stolonifera Reid V. Moran 1949-7-2 3287 Orange Near mouth of Aliso Canyon, south of Laguna Beach. Comment
  SD130042  Dudleya stolonifera Reid Moran 1977-6-13 24238 Orange North-facing cliff near mouth of Aliso Canyon. 10 Comment
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Nov 27 2014
  UCD101938  Dudleya stolonifera Reid Moran 1977-6-13 24230 Orange Willow Canyon, tributary of Laguna Canyon. 125 Comment
  CAS-BOT-BC109743  Dudleya stolonifera R. V. Moran 1949-7-2 3286 Orange 1.7 mile below Toro Road Junction, -1.5 mile above canyon mouth. Laguna Canyon. 243 Comment
  RSA17568  Dudleya viscida C. B. Wolf 1936-6-17 2596 Orange Santa Ana Mts., along Ortega Hwy, 6/10 mi below San Juan Hot Springs. 182 Comment
  RSA0045610  Echidiocarya californica Keith E. Hoffmaster 1935-2-9 841 Orange Santa Ana Mts., near El Toro. Comment
  CAS-BOT-BC197179  Echinochloa crus-galli John Thomas Howell 1927-7-18 2793 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  RSA365260  Echinochloa crus-galli C. B. Wolf 1932-6-13 3720 Orange Fullerton, Rose Drive 53 Comment
  UCR240255  Echinochloa crus-pavonis R. E. Riefner Jr. 2006-9-16 s.n. Orange Yorba Linda, north of Chapman Ave. c. 1 mile along floodplain of Santa Ana River 98 Comment
  CAS-BOT-BC445606  Echinodorus berteroi R. E. Riefner 2000-8-21 20 -728 Orange Santa Ana Mtns.: Irvine Lake [Santiago Reservoir], first cove east of the dam. 238 Comment
  CAS-BOT-BC445607  Echinodorus berteroi Frank W. Peirson 1924-5-31 4650 Orange Laguna Canon [Canyon] Comment
  RSA648653  Echinodorus berteroi R. E. Riefner 2000-8-21 20 -728 Orange Irvine Lake. First cove SE of Dam. USGS 7.5' Quad: Black Star Canyon. 237 Comment
  UCR113444  Echinodorus berteroi R. E. Riefner Jr. 2000-8-21 20- 728 Orange Santa Ana Mountains: Irvine Lake [Santiago Reservoir], first cove southeast of the dam 238 Comment
  UCR19807  Echinodorus berteroi F. M. Reed 1924-8-15 4963 Orange South Coast, Laguna Lake Beds, Laguna Canyon Comment
  RSA151075  Eclipta prostrata Peter H. Raven 1961-10-15 16859 Orange Dyke along road to Yorba Linda just north of US Hwy 91 114 Comment
  RSA753028  Eclipta prostrata A. C. Sanders, Fred M. Roberts 2008-9-18 36069 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  SEINET10753656  Ehrharta calycina Scott D. White, M. Honer 2003-6-12 White 9542 Orange Southwestern Santa Ana Mts Foothills: Rancho Mission Viejo. Upper end of Trampas Canyon. (San Clemente.) 152 Comment
  RSA731006  Ehrharta erecta Fred M. Roberts, B. Allen 2007-1-19 6508 Orange Mission Viejo: 23012 Via San Gabriel. Irrigated urban landscaping. 230 Comment
  RSA799624  Eleocharis acicularis Justin M. Wood 2011-4-12 3664 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  CAS-BOT-BC112764  Eleocharis macrostachya John Thomas Howell 1927-6-30 2619 Orange Mucky soil of canal bank 7 miles east of Long Beach. 15 Comment
  UCR191469  Eleocharis macrostachya A. C. Sanders, Fred M. Roberts 2008-4-8 34734 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR193433  Eleocharis macrostachya A. C. Sanders, Fred M. Roberts 2008-5-6 35240 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, south of Santiago Reservoir 351 Comment
  UC306105  Eleocharis macrostachya D. L. Crawford 1916-3-10 727 Orange Santa Ana River Comment
  RSA750923  Eleocharis montevidensis A. C. Sanders, Fred M. Roberts 2008-7-3 35701 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UC971749  Eleocharis radicans L. M. Booth 1932-7-19 1286 Orange Bolsas Creek Comment
  RSA723324  Eleusine coracana subsp. africana R. E. Riefner 2006-11-15 6 -677 Orange City of Irvine, Shady Canyon Rd. at Quail Hill. 35 Comment
  HSC9694  Elymus condensatus J. W. Johnson 1961-3-29 Orange Newport Beach Comment
  RSA34  Elymus glaucus J. T. Howell 1927-6-17 164 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  JEPS71193  Elymus glaucus subsp. glaucus L. M. Booth 1932-6-7 1154 Orange Newport Bay Comment
  POM50709  Elymus glaucus subsp. glaucus Le Roy Abrams 1901-06 1822 Orange Santiago Peak Trail 915 Comment
  RSA548857  Elymus multisetus Karlin G. Marsh, Gordon Marsh 1989-6-26 s.n. Orange Ridge south of Santiago Canyon, northwest of Vulture Crags, c.a. 3.0km SW Laurel Springs;, UTM 3728400mN, 4442000mE 866 Comment
  RSA724034  Elymus repens R. E. Riefner 2005-10-1 5 -704 Orange City of Costa Mesa, South Coast Dr. at Susan Rd. 16 Comment
  UCD62743  Elymus trachycaulus subsp. subsecundus Peter H. Raven; R. Snow 1958-7-18 13568 Orange 3.5 miles southeast of Five Pines. Comment
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Nov 15 2013
  IRVC28776  Encelia californica Archie F. Iskaq 2006-2-4 1 Orange San Joaquin Marsh; NW Edge of Marsh. Southern Coastal 3 Comment
  LA103538  Encelia californica Barry A. Prigge; 1983-12-17 5518 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
  POM202371  Encelia californica L. M. Booth 1932-5-12 1029 Orange Newport Bay. Comment
  RSA278305  Encelia californica C. W. Tilforth, Walter Wisura 1979-5-23 1809 Orange Mouth of Aliso Canyon, south Laguna. Comment
  RSA614340  Encelia californica B. Pitzer 1996-4-30 2792 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (Pacific Coast Hwy). Bluffs above the beach. Comment
  RSA719414  Encelia californica Fred M. Roberts, Lee Ann Caranza 2006-10-25 6452 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 Comment
  UCR191328  Encelia californica A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34611 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
  UCR219803  Encelia californica 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
  UCR223984  Encelia californica Dick Newell, Don Millar 2011-3-1 071 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  UCSB48067  Encelia californica Fritzke, S.; Roberts, Jr., Fred 1982-4-3 Orange Dana Point Headlands; along Scenic Dr., near jct. with Cove Rd., 0.4 km. W Dana Point Harbor; 0.7 km. S Richard Henry Dana School 70 Comment
  RSA746042  Encelia californica Archie F. Iskaq 2006-2-4 1 Orange Southern Coastal: San Joaquin Marsh; NW edge of marsh. Comment
  RSA723970  Epilobium brachycarpum R. E. Riefner Jr. 2005-10-5 05 -705 Orange City of Yorba Linda; Santa Ana River, Horseshoe Bend, near La Palma Rd. and Via Del Rio Rd. 99 Comment
  RSA494  Epilobium ciliatum subsp. ciliatum J. T. Howell 1927-7-19 440 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA495  Epilobium ciliatum subsp. ciliatum J. T. Howell 1927-10-29 776 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA72173  Epilobium ciliatum subsp. ciliatum F. W. Peirson 1924-5-31 4654 Orange Laguna Canyon, near Laguna Beach. 107 Comment
  RSA731008  Epilobium ciliatum subsp. ciliatum Fred M. Roberts 2006-11-15 6471 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  UC537275  Epilobium ciliatum subsp. ciliatum Lawrence M. Booth 1932-6-4 1145 Orange Newport Lagoon 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
  UC536935  Epipactis gigantea Lawrence M. Booth 1932-6-4 1150 Orange Newport Lagoon; base of hill 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
  IRVC22826  Equisetum laevigatum Fred M. Roberts 1985-6-7 1864 Orange Santa Ana Mtns: San Juan Canyon; Hwy 74, 2.6km SW Lower San Juan Picnic Ground Peninsular Ranges 290 Comment
  UC1543090  Equisetum laevigatum Donald G. Nelson 1935-4-6 266 Orange e San Juan Capistrano (canyon 200-300 ft below main Hwy., ca. 4 mi from Summit); Santa Ana Mts., San Juan Canyon Comment
  UC284888  Equisetum telmateia subsp. braunii P. A. Munz 1923-9-7 7731 Orange Holy Jim Canyon; Santa Ana Mts. 609 Comment
  POM17838  Equisetum telmateia var. braunii Philip A. Munz 1923-9-7 7731 Orange Holy Jim Canyon, Santa Ana Mountains 609 Comment
  CAS-BOT-BC204438  Eragrostis cilianensis Helen D. Geis 1902-1-1 549 Orange Unspecified 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
  RSA226743  Eragrostis mexicana subsp. virescens I. L. Wiggins 1965-11-7 20358 Orange Vacant lot between State College Blvd. and Troy High School Campus, Fullerton. Comment
  UCD33017  Eragrostis pectinacea Beecher Crampton 1965-10-27 7583 Orange Orange County, UC - South Coast F.S.. Comment
  UCR69742  Eragrostis pectinacea var. pectinacea Tim Hartz 1990-11-19 s.n. Orange Irvine U.C. South Coast Field Station, near the U.C. Irvine Campus. Comment
  RSA233016  Eremocarpus setiger Christopher Davidson, G. Benny 1971-6-15 1553 Orange Carbon Canyon, 1 mile SW of Carbon Canyon mineral spring. Comment
  UC1543073  Eremocarpus setiger Donald G. Nelson 1935-6-27 330 Orange on bluffs facing ocean beaches s Corona del Mar (s of mouth of Newport Bay) Comment
  RSA436021  Eremocarpus setiger F. R. Fosberg 1931-6-21 S- 5081 Orange Lower Santiago Canyon. Comment
  RSA0105523  Eriastrum densifolium subsp. austromontanum M. Clinton 1931-6-24 s.n. Orange South Fork S.A. River. Comment
  UC23533  Eriastrum densifolium subsp. sanctorum S. B. and W. F. Parish July, 1886 Orange Santa Ana Riv. Comment
  UCR193057  Eriastrum sapphirinum A. C. Sanders, Fred M. Roberts 2008-6-17 35505 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA0121313  Eriastrum sapphirinum subsp. dasyanthum P. A. Munz 1949-5-26 13374 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains 732 Comment
  UCD131585  Ericameria P. B. Kennedy 1925-1-12 10 Orange Irvine Ranch. Comment
  SD108852  Ericameria pachylepis James Henrickson 1972-10-21 8076 Orange Newport Beach, south of Jamboree Road, east of Irvine Coast Country Club near U. C. Irvine. 45 Comment
  POM201792  Ericameria palmeri var. pachylepis L. M. Booth s.n. Orange Newport Beach Comment
  RSA785321  Ericameria palmeri var. pachylepis Dick Newell, Don Millar, Michael Dresser 2010-9-21 034 Orange access road on east side of Laguna Canyon Rd. at Stage Coach, 1.22 miles north of Hwy 73 toll road 111 Comment
  RSA167489  Ericameria parishii R. F. Thorne, John Olmsted 1963-7-26 32830 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA38491  Ericameria parishii Percy C. Everett 1945-11-13 11512 Orange Indian Canyon Truck Trail, Indian Canyon, Santa Ana Mts. 960 Comment
  UCR237810  Erigeron foliosus Dick Newell, Don Millar 2012-6-5 268 Orange Peninsular Range; Santa Ana Mtns., Loma Ridge East, 0.35 mi. due east of Hicks Haul Rd. 411 Comment
  IRVC14812  Erigeron foliosus var. foliosus A. S. Boughey 1968-7-9 384396 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  UCR215289  Erigeron foliosus var. foliosus Fred M. Roberts, D. E. Bramlet 2008-5-13 6956 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  POM6358  Erigeron foliosus var. stenophyllus P. A. Munz 1919-5-3 2656 Orange Santa Ana River Canyon. Comment
  RSA443826  Erigeron foliosus var. stenophyllus Gordon Marsh, Karlin G. Marsh 1978-5-20 s.n. Orange Coal Canyon, Santa Ana Mts. 152 Comment
  UCR188939  Eriobotrya japonica Robert DeRuff 2004-1 546 Orange Newport Beach, Upper Newport Bay, Big Canyon on north-facing bank below Park Newport Apartments 16 Comment
  LA67535  Eriodictyon crassifolium David S. Verity; Fred Lang 1972-7-14 sn Orange hills behind South Laguna, at the top of Pacific Island Drive Comment
  RSA5322  Eriodictyon crassifolium B. D. Stark 1932-12-30 4473 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA0041967  Eriodictyon crassifolium Paul Shirokawa 1998-5-7 23 Orange Cleveland National Forest: Trabuco Ranger District, 3.1 miles from Ortega Highway (State Highway 74) on Main Divide Road. 990 Comment
  RSA734652  Eriodictyon crassifolium var. crassifolium A. C. Sanders, Fred M. Roberts, Amber O Neal, D. E. Bramlet 2008-5-9 35298 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  SEINET6336298  Eriogonum crocatum Czarnecki 1966-4-13 67 Orange Old botanical gardens on Rancho Santa Ana. Comment
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Nov 3 2015
  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
  UCR231355  Eriogonum elongatum A. C. Sanders, Kent Beaman 2011-9-27 39907 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347 deg. ) of Santiago Peak 903 Comment
  CDA23118  Eriogonum fasciculatum Eric Chu, Alyssa J. Lai 2006-2-4 1 Orange Southern Coastal; San Joaquin Marsh; northwest edge of Marsh. Comment
  IRVC28779  Eriogonum fasciculatum Caroline Tran 2006-2-4 1 Orange San Joaquin Marsh; NW bluff edge Southern Coastal 5 Comment
  POM201739  Eriogonum fasciculatum L. M. Booth 1932-7-27 s.n. Orange Corona del Mar, Newport Beach, Bluff Ravine Comment
  POM2249  Eriogonum fasciculatum P. A. Munz 1918-5-5 2193 Orange Laguna. Comment
  RSA0126615  Eriogonum fasciculatum var. fasciculatum Fred M. Roberts 2012-4-27 7498 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
  SEINET253237  Eriogonum fasciculatum var. fasciculatum Lawrence M. Booth 1932-7-27 1326 Orange Corona del Mar, Newport Beach, Ocean Bluff. Comment
  CAS-BOT-BC249949  Eriogonum fasciculatum var. foliolosum Helen D. Geis 1902-1-1 524 Orange Santiago Cr. Comment
  RSA393426  Eriogonum fasciculatum var. foliolosum F. R. Fosberg 1931-6-21 S 5155 Orange Carbon Canyon, Punete Hills. Comment
  RSA393428  Eriogonum fasciculatum var. foliolosum N. C. Cooper 1944-6-4 1331 Orange San Juan Canyon. 305 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
  UCSB48025  Eriogonum fasciculatum var. foliolosum Roberts, Fred 1980-7-7 Orange Santa Ana Mtns; San Juan Canyon, Calif. Rte. 74, 2.2km ENE San Juan Guard Station; 0.6km W BM 1100 305 Comment
  UCSB48007  Eriogonum gracile Roberts, Fred 1980-6-29 Orange Santa Ana Mtns; Viejo Canyon; 0.4km N Calif. Rte 74; 2.2km ENE San Juan Guard Station 341 Comment
  POM201860  Eriogonum gracile var. gracile L. M. Booth 1933-8-26 1386 Orange Newport Lagoon. Comment
  RSA7476  Eriogonum nudum var. pauciflorum Carl B. Wolf 1933-8-24 5400 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  CAS-BOT-BC257875  Eriogonum parvifolium David D. Keck 1932-9-30 1904 Orange 2 mi. W. of Laguna Beach Comment
  CAS-BOT-BC257876  Eriogonum parvifolium David D. Keck 1932-9-30 1904 Orange 2 mi. W. of Laguna Beach Comment
  RSA424463  Eriogonum parvifolium var. parvifolium E. S. Spalding 1923-12-1 s.n. Orange Opposite San Juan Capistrano Comment
  SEINET7067535  Eriogonum thurberi A. G. Vestal 1947-6-12 s.n. Orange Santa Ana River Wash west of Orange. Coordinate datum: NAD27. UTM Zone 11, 418503mE, 3739068mN. Comment
  RSA131652  Eriophyllum confertiflorum E. K. Balls 1958-6-27 23286 Orange Mojeska Saddle, Santa Ana Mts 1463 Comment
  UCR241905  Eriophyllum confertiflorum Fred M. Roberts 2012-4-24 7523 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
  IRVC15665  Eriophyllum confertiflorum var. confertiflorum A. S. Boughey, P. Pembrook 1965-6-18 1018 Orange Los Trancos Canyon at bottom, ; chaparral. San Joaquin Hills Comment
  UC1118325  Eriophyllum confertiflorum var. confertiflorum J. B. Spring 1931-4-14 33 Orange Cold Spring Harbor Elsinore Quadrangle, Cold Spring Harbor 457 Comment
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Jan 11 2007
  RSA650823  Erodium cicutarium Daniel Truong 1991-5-5 9 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area' . Comment
  SEINET13679551 Image available Erythranthe floribunda A. C. Sanders, T. B. Salvato 2008-1 35335 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  JEPS51726  Eschscholzia californica Alice King June, 1908 Orange Santa Ana Comment
  UCSB39756  Eschscholzia californica Levine, N. 1977-5-1 Orange Intersection of Malverne and Meadowbrook Way on south side of Malverne, Buena Park 30 Comment
  RSA539383  Eschscholzia californica var. peninsularis Fred M. Roberts, Carol A. Roberts 1988-6-9 4076 Orange Santa Ana Mountains: Main Divide Truck Trail, saddle between Modjeska Peak and Santiago Pk., 0.5 km Ee summit of Modjeska Pk. 1445 Comment
  POM256959  Eschscholzia californica var. peninsularis W. Pequegnat 1940-4-15 s.n. Orange SW face of Modjeska Peak, Santa Ana Mts. 1524 Comment
  UCR184670  Eucalyptus camaldulensis Dean Kelch 2006-12-9 06 .555 Orange Irvine. University Dr. along tidal Creek just east of I-73 9 Comment
  RSA0010852  Eucalyptus camaldulensis var. obtusa D. Goodward 1987-4-16 6 Orange Irvine Ranch, E of Tustin and ca. 1 mile NE of the Irvine Blvd/Myford Rd. intersection in Peters Canyon. 122 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
  UCR50904  Eucalyptus tereticornis Dave Goodward 1987-4-16 4 Orange Irvine Ranch, Boy Scout Camp in Peters Canyon, east of Tustin and c. 1 mi NE of the Irvine Blvd/Myford Road intersection 122 Comment
  RSA3173  Eucrypta chrysanthemifolia Carl B. Wolf 1932-3-8 2690 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA598962  Eucrypta chrysanthemifolia Scott D. White 1997-3-28 4834 Orange Above Modjeska Canyon, proposed water tank site. 425 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
  SD220055  Euphorbia albomarginata Mark A. Elvin 2004-5-2 3428 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  RSA787624  Euphorbia dictyosperma Keith E. Hoffmaster 1935-5-5 625 Orange San Juan Canyon., Santa Ana Mts. Comment
  CLARK-A1528-5001  Euphorbia maculata John C. Roos 1937-5-21 2066 Orange Orange Comment
  POM11888  Euphorbia misera P. A. Munz s.n. Orange Three Arches; Laguna Beach Comment
  POM201836  Euphorbia misera L. M. Booth 1932-7-23 1300 Orange Corona del Mar, Newport Beach. Comment
  RSA0029993  Euphorbia misera R. E. Riefner Jr. 2013-1-16 13 -16 Orange City of Newport Beach, vicinity of Poppy Ave. and Ocean Blvd., coastal bluff at Little Corona Beach. 3 Comment
  RSA5354  Euphorbia misera B. D. Stark 1932-12-9 4425 Orange Dana Point Comment
  SD126575  Euphorbia misera Virginia S. Moran, Karen L. Miner 1989-1-29 Orange city of Newport Beach, Corona del Mar State Beach, Inspiration Point, on SSW-facing sandy ocean bluff 29 Comment
  SEINET7249217  Euphorbia misera R. E. Riefner Jr. 2012-1 12 -518 Orange City of Dana Point, Dana Point Harbor, 'Bluff Top Trail' located near Camino Capistrano and Violet Latern Streets. 35 Comment
  UCR240164  Euphorbia misera R. E. Riefner Jr. 2012-12-5 12- 587 Orange South Coast, city of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road 9 Comment
  RSA599182  Euphorbia peplus Scott D. White 1997-3-28 4849 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  RSA562743  Euphorbia peplus Steve Boyd, T. S. Ross 1992-5-19 7439 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
  UCD142463  Euphorbia peplus Ronni Stachelek; Bob Anderson 1995-3-23 48 Orange Newport Beach; Upper Newport Bay. Adjacent to Jamboree Rd. Comment
  UCD142472  Euphorbia peplus R. Townsend 1939-12-28 152 Orange Yorba Linda. Comment
  RSA708284  Euphorbia polycarpa Scott D. White, Jennifer H. Jones 2005-3-31 10857 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 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
  UCR192492  Euphorbia polycarpa A. C. Sanders, Fred M. Roberts 2008-3-25 34560 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR239646  Euphorbia polycarpa var. polycarpa Fred M. Roberts 2012-5-9 7553 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
  RSA0104829  Euphorbia polycarpa var. polycarpa E. P. Cowper 1965-4-6 s.n. Orange Ortega Highway toward San Juan Capistrano. Comment
  IRVC27724  Euphorbia serpens Mark A. Elvin 2004-5-2 3428 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA0018988  Euphorbia serpens Oscar F. Clarke 2004-8-23 s.n. Orange Santa Ana River Valley: Yorba Linda, Yorba Regional Park, Santa Ana River bank near intersection of E. La Palma Ave. and Fairmont Blvd. 91 Comment
  UCR154276  Euphorbia serpens Mark A. Elvin 2004-5-2 3428 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  IRVC21742  Euthamia occidentalis Fred M. Roberts 1984-10-18 1430 Orange San Juan Canyon, 2.5km ENE San Juan Guard Station; 4.0km WNW Sitton Peak, Santa Ana Mountains 310 Comment
  CAS-BOT-BC474723  Ficus microcarpa R. E. Riefner, Jr. 2014-6-14 14 -169 Orange City of Newport Beach, N side of Pacific Coast HIghway at Riverside Ave. 6 Comment
  CAS-BOT-BC500431  Ficus microcarpa R. E. Riefner, Jr. 2014-7-13 14 -222 Orange City of Irvine, S side of Red Hill Ave. bridge, E of 405 Freeway N-bound lane 31 Comment
  CAS-BOT-BC502095  Ficus microcarpa R. E. Riefner, Jr. 2015-8-30 15 -381 Orange City of Anaheim, Pearson Park, SE section of park, N of N. Helena St, and W. Cypress St., near jct. of N. Lemon St., and W. Cypress St. 44 Comment
  CAS-BOT-BC502096  Ficus microcarpa R. E. Riefner, Jr. 2015-8-30 15 -382 Orange City of Anaheim, Pearson Park, SE section of park, N of N. Helena St, and W. Cypress St., near jct. of N. Lemon St., and W. Cypress St. 44 Comment
  CAS-BOT-BC502097  Ficus microcarpa R. E. Riefner, Jr. 2015-8-30 15 -383 Orange City of Anaheim, Pearson Park, SE section of park, N of N. Helena St, and W. Cypress St., near jct. of N. Lemon St., and W. Cypress St. 44 Comment
  RSA0088634  Ficus microcarpa R. E. Riefner Jr. 2014-11-26 14 -399 Orange City of Irvine, W of Irvine Blvd. and S of Pusan Way, Former MCAS El Toro facility. 138 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
  RSA0089290  Ficus microcarpa R. E. Riefner Jr. 2014-2-24 14 -66 Orange City of Dana Point, W ca. 0.1 mi from Island Way along Dana Point Harbor Dr., cliff immediately S of Santa Clara Ave. and Amber Lantern St. 11 Comment
  RSA0113947  Ficus microcarpa R. E. Riefner Jr. 2015-7-18 15 -198 Orange City of Costa Mesa, Anton Blvd. on ramp to 405 Freeway, ca. 0.3 mi from interesction of Bristol St at Sunflower Ave. 11 Comment
  RSA0116290  Ficus microcarpa R. E. Riefner Jr. 2014-7-14 14 -169 Orange City of Newport Beach, N side of Pacific Coast Highway at Riverside Ave. 6 Comment
  RSA649060  Filago arizonica D. E. Bramlet 2000-4-5 2941 A Orange Ridgeline above the 'MWD' canyon, approximately 1.7 km southwest of Irvine Park. This locality is found 610m southeast of Weir Canyon and 152m southeast of the MWD access road. 88 Comment
  UCR223963  Filago californica Fred M. Roberts 2008-4-9 6853 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
  RSA542431  Filago gallica Fred M. Roberts, Gordon Marsh, Karlin G. Marsh 1988-4-26 3938 Orange San Joaquin Hills: Pelican Hill, 0.5 kim SE Summit. 165 Comment
  CAS-BOT-BC63069  Frangula californica subsp. californica P. C. Everett 1936-9-19 8268 Orange Santa Ana Mts., Silverado Canyon. In vicinity of Forest Service Road gate. 762 Comment
  SBBG92712  Frangula californica subsp. californica R. Moran 1975-7-18 22598 Orange near Yaeger Mine, upper Trabuco Cyn 725 Comment
  UCSB48032  Frangula californica subsp. californica Roberts, Fred 1980-7-7 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.3km ENE San Juan Guard Station; 0.4km W Bench Mark 1100 315 Comment
  CAS-BOT-BC53336  Frangula californica subsp. cuspidata P. C. Everett 1935-6-18 7217 Orange Santa Ana Mts., Summit of Santiago Pk. 1731 Comment
  RSA798541  Frangula californica subsp. cuspidata Robert F. Thorne, E. W. Lathrop 1977-5-18 49740 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  RSA391396  Frankenia grandifolia Albert J. Perkins 1908-5-30 s.n. Orange Laguna Mesa Comment
  RSA391398  Frankenia grandifolia Albert J. Perkins 1923-6-28 s.n. Orange Laguna Beach. Comment
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Jul 15 2013
  RSA391399  Frankenia grandifolia Albert J. Perkins 1917-10-14 s.n. Orange Salt marsh at mouth of Aliso Canyon. Comment
  IRVC8591  Frankenia salina Paul Fishman, Hayden R. Williams 1969-9-23 980 Orange Upper Newport Bay: below East Bluff. Southern Coastal 2 Comment
  JEPS30104  Frankenia salina L. M. Booth 1932-7-27 1324 Orange Comment
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Nov 11 2011
  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
  RSA539403  Frankenia salina Fred M. Roberts Jr., Karen Swirsky 1988-6-28 4106 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  RSA12722  Fraxinus dipetala Carl B. Wolf 1934-9-21 6139 Orange Silverado canyon, 1/2 mile below Silverado Motorway, W slope of Santa Ana Mts. 640 Comment
  UCR132979  Fritillaria biflora Adrian Wolf 2000-4-15 459 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Baker Canyon Road 335 Comment
  RSA201607  Fumaria parviflora Unspecified 1969-3-2 s.n. Orange East of Trabuco and Yale roads 91 Comment
  RSA566  Funastrum cynanchoides var. hartwegii J. T. Howell 1927-7-24 461 Orange Santa Ana River bottom near Rancho Santa Ana. 152 Comment
  UCR192724  Galinsoga parviflora A. C. Sanders, Fred M. Roberts 2008-5-6 35226 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
  RSA647961  Galium angustifolium Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 28 Orange 1/2 mile south of Chino Hills State Park. 168 Comment
  SEINET269587  Galium angustifolium O. F. Clarke 1994-6-17 Orange Laguna Canyon. Comment
  UCR191003  Galium angustifolium A. C. Sanders, Fred M. Roberts 2008-4-22 35005 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  UCSB45140  Galium angustifolium Woicik, Richard 1976-5-21 Orange Modjeska Canyon, near fire station Comment
  HSC19777  Galium angustifolium subsp. angustifolium J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  POM367705  Galium angustifolium subsp. angustifolium Albert J. Perkins 1913-4-29 s.n. Orange Trabuco Canyon. Comment
  SD119373  Galium angustifolium subsp. angustifolium Reid Moran 1977-6-13 24232 Orange north slope, Willow Canyon, tributary of Laguna Canyon 124 Comment
  UC1143131  Galium angustifolium subsp. angustifolium A. Lewis May 1934 411 Orange Trabucco Canyon Cleveland National Forest, Elsinore Quadrangle 1219 Comment
  UCR97638  Galium angustifolium subsp. angustifolium George K. Helmkamp, E. A. Helmkamp 1997-4-24 1651 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
  POM367761  Galium aparine Albert J. Perkins 1923-4-27 s.n. Orange Trabuco Canyon. Comment
  SBBG7296  Galium aparine H. and M. Dearing 1937-3-12 1861 Orange Santa Ana Cyn 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
  UCR191347  Galium porrigens A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34632 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  RSA444682  Gamochaeta pensylvanica J. C. Roos 1965-6-16 s.n. Orange Dana Point. Comment
  UCR193262  Gamochaeta pensylvanica A. C. Sanders, Fred M. Roberts 2008-6-17 35523 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 230 Comment
  UCR190985  Gamochaeta stagnalis A. C. Sanders, Fred M. Roberts 2008-4-22 34993 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  IRVC24227  Garrya flavescens Fred M. Roberts, Gordon A. Marsh, Karlin G. Marsh 1985-10-1 2287 Orange Santa Ana Mountains; Silverado Canyon, Silverado Truck Trail, 1.5km NW Shrewsbury Spring. Peninsular Ranges 766 Comment
  UC1122672  Garrya flavescens H. E. Norton 1931-3-21 47 Orange Bedford Peak; Corona Quad. 1066 Comment
  IRVC24957  Garrya flavescens var. pallida Fred M. Roberts, Gordon A. Marsh 1986-6-6 2931 Orange Santa Ana Mountains; ridge S of Mabey Canyon, just N of Skyline Dr. near Orange County line; 2.7km SE Sierra Peak. Peninsular Ranges 820 Comment
  RSA124723  Garrya flavescens var. pallida E. K. Balls, P. C. Everett 1957-11-25 22846 Orange 1.4 miles E of Silverado. Comment
  RSA5344  Garrya flavescens var. pallida B. D. Stark 1933-1-4 4497 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  UC1122732  Garrya veatchii A. Lewis May 1934 428 Orange Los Pinos Peak; Cleveland National Forest, Elsinore Quad. 1066 Comment
  CDA5144  Gaura coccinea Margaret Bellue, Andreas, E. L. Paddock 1943-8-31 Orange 1 mile north of Fullerton, Brea. 0 Comment
  RSA38480  Gaura parviflora E. L. Paddock 1943-6-8 12730 Orange Whittier Road 1/4 mile west of Puente Street, Brea. Comment
  POM18088  Gayophytum diffusum subsp. parviflorum P. A. Munz 1923-9-7 7749 Orange Santiago Peak, Santa Ana Mountains. 1646 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
  RSA732157  Geranium carolinianum A. C. Sanders, Fred M. Roberts 2008-4-22 35031 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado. 1200 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
  POM10159  Gilia angelensis P. A. Munz, R. D. Harwood 1920-4-24 3766 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  POM6410  Gilia angelensis P. A. Munz, L. T. Street, G. Williams 1919-5-3 2628 Orange Santa Ana River Canyon. Comment
  RSA156758  Gilia angelensis D. E. Breedlove 1962-3-9 1798 Orange 4.4 miles east of San Juan Capistrano on State [hwy] 74 113 Comment
  RSA628623  Gilia capitata subsp. abrotanifolia Sandy Leatherman, Fred Roberts, Brian Leatherman, Trish Smith 1998-5-23 13 Orange Black Star Canyon: Spur Road off of Black Star Canyon Road. 335 Comment
  RSA552949  Githopsis diffusa subsp. candida Fred M. Roberts 1989-4-20 4293 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
  RSA39115  Gladiolus italicus E. L. Paddock 1948-4-19 12289 Orange Walnut groves in Santa Ana (north side of Manchester midway between Flower and Main Sts.; and on east 17th St. one-fourth mile east of Grand. Comment
  RSA91740  Gnaphalium beneolens F. W. Peirson 1923-9-7 4042 Orange Trail to Santiago Peak, Santa Ana Mts 991 Comment
  IRVC14735  Gnaphalium californicum A. S. Boughey 1968-7-9 388 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA696915  Gnaphalium californicum Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  UCR174027  Gnaphalium californicum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33008 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
  UCR103790  Gnaphalium canescens subsp. microcephalum Scott D. White 1997-2-19 4697 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  POM201844  Gnaphalium chilense L. M. Booth 1932-7-19 1275 Orange Bolsas Marsh. Comment
  RSA573302  Gnaphalium leucocephalum Steve Boyd 1994-9-14 8359 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucus Canyon Trail crossing near old mining camp. 299 Comment
  RSA679098  Gnaphalium leucocephalum Fred M. Roberts 2003-7-24 5963 Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub. 27 Comment
  UCR126410  Gnaphalium leucocephalum Fred M. Roberts 2003-7-24 5963 Orange South Coast, San Juan Capistrano, San Juan Creek, c. 0.1 km NE of La Novia Bridge 27 Comment
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Jun 4 2013
  IRVC18037  Gnaphalium luteo-album Gordon A. Marsh 1983-8-27 Orange San Joaquin Freshwater Marsh, NE side near pump house; center of road. Irvine Comment
  IRVC19530  Gnaphalium luteo-album R. L. Allen 1983-2-24 A644 Orange 3160 Air[way] Ave. along Paularino; weed in blue grass lawn. Costa Mesa Comment
  RSA701689  Gnaphalium luteoalbum Fred M. Roberts, David E. Bramlet 2003-6-6 5899 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Canyon, 0.86 km SSW Gato Gate and 0.39 km W of Cristianitos Road. 149 Comment
  RSA734630  Gnaphalium luteoalbum A. C. Sanders, T. B. Salvato 2008-5-13 35358 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  POM18134  Gnaphalium microcephalum P. A. Munz 1923-9-7 7766 Orange Santa Ana Mts. From Holy Jim Canyon to Santiago Peak. 1067 Comment
  RSA0022433  Gnaphalium microcephalum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49791 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA857  Gnaphalium palustre J. T. Howell 1927-7-18 431 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UCR208624  Gnaphalium palustre O. F. Clarke 2004-5-29 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  RSA39325  Gnaphalium palustre E. L. Paddock 1943-5-29 12746 Orange S Deodar, 1/2 mile E of Pomona Brea. Comment
  RSA698229  Godetia bottae R. H. McArthur 1934-5-19 s.n. Orange Trobuca Canyon. Comment
  RSA627780  Grindelia Scott D. White 1998-3-24 6236 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
  SD60356  Grindelia camporum Peter H. Raven 1959-4-30 14038 Orange Base of ocean bluffs just north of San Clemente. 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
  IRVC4034  Grindelia camporum var. bracteosa A. S. Boughey 1968-7-16 422 Orange road to Signal Peak. San Joaquin Hills Comment
  CAS-BOT-BC305202  Grindelia hirsutula Peter H. Raven 1959-4-30 14038 Orange Just north of San Clemente Comment
  CAS-BOT-BC305205  Grindelia hirsutula Carl B. Wolf 1936-7-8 8101 Orange Coast Highway, Western end of Newport Bay 9 Comment
  CAS-BOT-BC305206  Grindelia hirsutula Carl B. Wolf 1932-7-2 3810 Orange Olinda. Valencia Ave., opposite Olinda Pilgrim Church 152 Comment
  CAS-BOT-BC305207  Grindelia hirsutula Carl B. Wolf 1932-7-2 3810 Orange Olinda. Valencia Ave., opposite Olinda Pilgrim Church 152 Comment
  CAS-BOT-BC305210  Grindelia hirsutula L. R. Abrams 1917-6-23 6566 Orange Balboa Comment
  JEPS41904  Grindelia hirsutula L. M. Booth 1932-5-24 1092 Orange Newport Bay Comment
  RSA17135  Guillenia lasiophylla E. R. Johnson 1936-4-27 7776 Orange Rancho Santa Ana, Santa Ana cayon, in Canyon W of Tennis court, Botanic Garden. 168 Comment
  RSA594898  Guillenia lasiophylla Fred M. Roberts 1995-5-19 4943 Orange Santa Ana Mtns, San Juan canyon, S of California, Route 74, 2.3km WSW lower San Juan Picnic Ground. 512 Comment
  CAS-BOT-BC314525  Gutierrezia californica Helen D. Geis 1902-1-1 573 Orange Santiago Cr. Comment
  CAS-BOT-BC314526  Gutierrezia californica Helen D. Geis 1902-1-1 s.n. Orange Santiago Creek Comment
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Dec 8 2018
  IRVC8688  Gutierrezia californica Charles W. Sexton 1965-3-27 Orange Ortega Highway out of San Juan Capistrano Southern Coastal Comment
  POM359185  Gutierrezia californica F. R. Fosberg 1931-6-21 749 Orange Lower Santiago Canyon. Comment
  POM50886  Gutierrezia californica L. R. Abrams 1901-06 s.n. Orange El Toro. Comment
  SD72732  Gutierrezia californica F. R. Fosberg 1931-6-21 S 5084 Orange Lower Santiago Canyon. Comment
  CLARK-A1528-1072  Haplopappus venetus subsp. vernonioides John C. Roos 1936-10-13 1531 Orange Newport Beach Comment
  RSA0066594  Harpagonella palmeri Fred M. Roberts, D. E. Bramlet 2003-3-7 5563 Orange Donna O Neill Land Conservancy: West slopes of Christianitos Canyon, Middle Ridge Trail, 0.1km NW Gato Gate. 123 Comment
  UCR113457  Harpagonella palmeri R. E. Riefner Jr. 2000-4-27 20- 391 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running south from Baker Canyon Road to Silverado Road 335 Comment
  RSA0066584  Harpagonella palmeri Karlin G. Marsh, Gordon Marsh 1991-6-10 s.n. Orange Laguna Beach: Temple Hill in South Laguna, E slope above Aliso Canyon 1.5 km N Aliso Peak. 185 Comment
  RSA0066585  Harpagonella palmeri Fred M. Roberts 1993-4-23 4855 Orange Mission Viejo: Mesa just W of Bridgeton Road near jct. of Ridgemark above Arroyo Trabuco, 4.8 km NNE Trabuco Survey Marker. 152 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
  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
  UCR26998  Hedera helix E. W. Lathrop 1966-5-13 6297 Orange Santa Ana Mountains, 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  RSA113254  Hedypnois cretica E. K. Balls 1955-4-4 20433 Orange Coastal Strand, mouth of Santa Ana River, W bank, Hwy 101. 3 Comment
  RSA732000  Hedypnois cretica A. C. Sanders, Fred M. Roberts 2008-4-22 35059 Orange Penisular Range; Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon. c. 3.5 mi. WSW of Silverado. 493 Comment
  RSA749471  Hedypnois cretica Fred M. Roberts, Linda Farley 2008-3-28 6826 Orange Santa Ana Mtns.: Upper Weir Cyn., Irvine Ranch Conservancy, 3.3 km ENE Robbers Peak on ridge north of canyon. 427 Comment
  SEINET11196714 Image available Hedypnois cretica D. Atwood 1993-3-28 17716 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. Comment
  SD247594  Hedypnois cretica R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49670 Orange Northern Santa Ana Mountains: Coal Canyon (NW of Sierra Peak). Comment
  POM202170  Helenium puberulum L. M. Booth 1932-7-19 1285 Orange Bolsas Marsh. Comment
  POM6080  Helenium puberulum D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. Comment
  LA204751  Helianthemum scoparium A. H. Lange; 1951-4-15 sn Orange Balboa Comment
  LA204752  Helianthemum scoparium W. Pequegnat; 1936-9-8 102 Orange Santa Ana Mountains, Ortega Rd Comment
  RSA696701  Helianthemum scoparium Anonymous s.n. Orange Modjeska. Comment
  UCR241917  Helianthemum scoparium Fred M. Roberts 2012-5-10 7565 Orange San Joaquin Hills, Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km north of Pelican Hill summit 183 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
  IRVC22726  Helianthus annuus Fred M. Roberts, G. A. Marsh 1985-5-14 1795 Orange UC Irvine campus along South Circle View Dr., SE of Engineering Biulding, Irvine 42 Comment
  RSA873  Helianthus annuus subsp. lenticularis J. T. Howell 1927-7-27 484 Orange Near ranch, Rancho Santa Ana 152 Comment
  UCD132779  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, north of El toro, around 11 miles southeast of Tustin. Comment
  RSA736587  Helianthus gracilentus Keith E. Hoffmaster 1934-5-13 173 Orange Santa Ana Mountains Comment
  CDA40618  Heliotropium curassavicum Bumgardner & Harnett 1957-7-23 s.n. Orange Santa Ana Freeway. 0 Comment
  RSA5865  Heliotropium curassavicum var. oculatum C. B. Wolf 1932-9-13 4021 Orange Bryant Ranch. 3/10 miles W of Los Alamitos Blvd.700 ft. south of Bryant Ave., (800 ft. east & 700 ft. south of NW corner of SW 1/4 sec. 30 T4S R11W) 7 Comment
  RSA30668  Hemizonia australis L. C. Wheeler 1932-6-25 849 Orange 5 miles west of Santa Ana. 22 Comment
  RSA599428  Hemizonia australis R. E. Riefner 1996-7-28 96 -152 Orange San Diego Creek, at Campus Drive. Comment
  POM56177  Hemizonia fasciculata H. M. Hall 1906-6-19 7411 Orange Gypsum, Santa Ana Canyon 122 Comment
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Sep 4 2011
  POM5971  Hemizonia fasciculata D. L. Crawford 1915-09 504 Orange Huntington Beach. Comment
  POM6416  Hemizonia fasciculata P. A. Munz 1919-5-3 2642 Orange Santa Ana River Canyon. Comment
  UCR149499  Hemizonia fasciculata Scott D. White, Michael Honer 2004-5-17 10386 Orange South Coast, City of Laguna Niguel. Ridges and open slopes directly N of the intersection of Crown Valley Parkway and Pacific Island Dr 183 Comment
  CAS-BOT-BC26068  Hemizonia parryi subsp. australis David D. Keck 1933-9-29 2537 Orange Seal Beach. Comment
  IRVC25435  Hemizonia parryi subsp. australis Fred M. Roberts 1987-7-22 3507 Orange San Diego Creek just above Main Street bridge; Irvine 5 Comment
  UCR158023  Hemizonia parryi subsp. australis Adrian Wolf 1998-7-1 425 Orange South Coast, University of California, Irvine East Campus, corner of Bonita Canyon Rd.and Culver on west side of road 70 Comment
  RSA0001299  Hemizonia parryi subsp. australis D. D. Keck 1933-9-29 2537 Orange Seal beach. Comment
  RSA735169  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35277 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  RSA786954  Heteromeles arbutifolia Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49621 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station Comment
  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
  UCR100186  Heterotheca grandiflora Scott D. White 1996-12-20 4639 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  UCR12562  Heterotheca grandiflora J. S. Davis 1972-5-6 720506- 28 Orange South Coast, Newport Beach. 3.2 mi N on Back Bay Road from corner of San Jaquin Hills Road in roadside turnout 6 Comment
  RSA0075813  Heterotheca grandiflora Dolores Perez 1981-4-11 6 Orange Carbon Canyon Rd., 6 miles E. of junction with Ca Hwy 90. Comment
  UCD133033  Heterotheca grandiflora W. G. Watkins 1936-3-10 s.n. Orange Orange. Comment
  UCR193928  Heterotheca sessiliflora A. C. Sanders, Fred M. Roberts 2008-7-16 35848 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon 325 Comment
  UCR149496  Heterotheca subaxillaris Scott D. White, Michael Honer 2004-5-17 10383 Orange South Coast, City of Laguna Niguel. Ridges and open slopes directly N of the intersection of Crown Valley Parkway and Pacific Island Dr 183 Comment
  RSA759252  Hibiscus trionum Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, N face, along access road up Modjeska Peak, outside the sharp bend in the extreme end of the road. Survey Point #47. 1514 Comment
  UCR224404  Hibiscus trionum Robt. L. Allen 2008-4-9 s.n. Orange South Coast, Irvine, Irvine Valley College, near norhteast corner of Student Services building 45 Comment
  RSA759278  Hibiscus trionum Robt. Allen 2008-4-9 s.n. Orange Irvine, Irvine Valley College, near NE corner of student Services building. 45 Comment
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Aug 2 2019
  RSA732170  Hirschfeldia incana 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
  RSA405279  Hoffmannseggia glauca T. W. Minthorn s.n Orange Santa Ana Mnt. Comment
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Nov 15 2013
  CAS-BOT-BC207960  Hoffmannseggia glauca Margaret K. Bellue 1933-6-7 s.n. Orange Unspecified Comment
  RSA131403  Holodiscus discolor E. K. Balls 1958-6-27 23284 Orange 5 miles southeast from Silverado (Gate), Silverado Canyon 1098 Comment
  UC592904  Holodiscus discolor C. B. Wolf and E. R. Johnson 1933-11-3 5527 Orange on road to Santaiago Peak, Santa Ana Mountains, Main Divide Motorway, Modjeska Peak Santaiago Peak; Santa Ana Mountains, Main Divide Motorway, Modjeska Peak 1524 Comment
  CAS-BOT-BC280835  Hordeum Ira L. Wiggins 1966-2-12 20432 Orange N. side of La Palma Ave. near Harbor Blvd., Anaheim Comment
  RSA728662  Hordeum brachyantherum R. E. Riefner 2002-5-4 2 -101 Orange City of Laguna Beach, Moulton Meadows Park, near Balboa Ave., and Del Mar Ave. 254 Comment
  RSA4806  Hordeum depressum James Snow 1932-1 s.n. Orange Bryant Ranch , near Long Beach, Calif. Station #1, Plant 6 Comment
  RSA642527  Hordeum intercedens D. E. Bramlet 1998-5-25 2627 Orange 120m north of the Newport Beach Library and 61m west of McArthur Blvd. 914m south of San Miguel Drive., Laguna Beach 7.5 USGS Quadrangle. UTM 11S 04 19 210m E X 37 18 860m N. Eleation 49 m. 15 Comment
  RSA666093  Hordeum marinum subsp. gussoneanum Fred M. Roberts, Michelle Lee 2001-5-14 5457 Orange Rancho Mission Viejo: South of San Juan Creek, 0.4km WNW Median Rancho Survey Marker. PCR Vernal Pool 8, (Canada Gobernadora: 33 deg 30'35''N, 117 deg 35'59''W) 240 Comment
  UCR192077  Hordeum murinum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35278 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA696594  Hordeum murinum Anonymous s.n. Orange High School Campus. Comment
  SEINET11678404  Hordeum murinum J. F. Bright, Wyman, C. 1933-1 8206 Orange DelToro Comment
  CDA22569  Hordeum murinum subsp. leporinum J. B. Anderson 1966-4-16 587 Orange South Coast; Corona Del Mar: Buck Gully, Little Corona Beach Comment
  RSA184143  Hordeum murinum subsp. leporinum I. L. Wiggins 1966-2-19 20453 Orange Hillside on W side of road, Carbon Canyon about 200m. Sw of Orange County Survey bench mark RCE 7872 Comment
  RSA685926  Hordeum murinum subsp. leporinum Fred M. Roberts 2003-3-27 5625 Orange Rancho Mission Viejo:Donna O'Neill Land Conservancy, Chistianitos Canyon, along North Ride Trail, 1.37 km N Sycamore Gate, 0.36 km W Chistianitos Rd. 114 Comment
  SEINET187061  Horkelia cuneata subsp. puberula P. A. Munz 1936-4-20 14606 Orange Mt Olympus Laguna Beach 152 Comment
  CAS-BOT-BC537312  Horkelia cuneata var. puberula Philip A. Munz 1936-4-20 14606 Orange Mt. Olympus, Laguna Beach 152 Comment
  UC1228876  Hydrocotyle verticillata Peter H. Raven 1961-10-15 16858 Orange dyke along rd. to Yorba Linda (just n. of U.S. Hwy. 91) 114 Comment
  UCR192470  Hypochaeris glabra A. C. Sanders, Fred M. Roberts 2008-3-25 34538 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR261715  Hypochaeris radicata Dick Newell, Don Millar 2015-3-24 397 Orange South Coast, San Joaquin Hills, on Serrano Ridge 0.25 mi. due east of 73 Toll Rd. overcrossing 249 Comment
  SD248402  Ipomoea purpurea R. E. Riefner Jr. 2012-9-7 12 504 Orange City of Dana Point, Dana Point Harbor Drive, vicinity of Island Way. 18 Comment
  RSA799949  Isocoma menziesii D. M. Ray 2011-1-19 2 Orange South Coast: Santa Ana River: along right of way road just west of Least Tern Island. 0 Comment
  SD124238  Isocoma menziesii var. menziesii C. W. Tilforth 1976-10-21 1225 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana Comment
  POM361284  Isocoma menziesii var. vernonioides Anstruther Davidson 1917-08 3268 Orange Near Laguna Beach. Comment
  RSA254943  Isocoma menziesii var. vernonioides C. W. Tilforth 1975-9-6 1049 Orange Northeast shoreline of Upper Bay, Newport Beach. 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
  UC1118854  Isocoma menziesii var. vernonioides A. Lewis 1934-4-1 396 Orange San Joaquin Hills Corona Quadrangle Comment
  UC1424944  Isocoma menziesii var. vernonioides C. W. Tilforth 1976-10-21 1225 Orange slopes above Santa Ana River Canyon (on Rancho Santa Ana) Comment
  UC1605435  Isocoma menziesii var. vernonioides Steve Boyd and Tim Ross 1994-9-14 8348 Orange Lucas Canyon Trail trail at divide between Aliso Canyon and Lucas Canyon; Southern Santa Ana Mountains, Cleveland N.F., San Mateo Cany 341 Comment
  UC672256  Isocoma menziesii var. vernonioides H. L. Mason 1926-4-25 2906 Orange 5 mi s Laguna Comment
  RSA660590  Isolepis carinata R. E. Riefner 2000-7-10 20 -641 Orange Nature Reserve of Orange County. Los Trancos Canyon, E of Pelican Hill. Comment
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Jul 18 2011
  RSA644979  Isolepis cernua R. E. Riefner 2000-2-19 20 -118 Orange Santa Ana Mtns. NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek and immediately N. of major stream fork. 305 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
  RSA90  Isolepis cernua J. T. Howell 1927-7-18 434 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  IRVC307  Isomeris arborea D. Christy 1965-5-3 Orange [Newport] Back Bay. Newport Beach Comment
  IRVC308  Isomeris arborea J. Schram 1965-4-30 Orange Corona del Mar, Corona Highlands gully. Newport Beach Comment
  UCR109619  Isomeris arborea R. D. Goeden, Don W. Ricker 1965-6-21 s.n. Orange Dana Point 61 Comment
  UCR98234  Isomeris arborea B. G. Pitzer 1997-4-15 3133 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  UCR240104  Jaumea carnosa Dick Newell, Judy Booth 2012-9-26 292 Orange South Coast, Newport Beach, Back Bay Drive at the Salt Dike 3 Comment
  UCR274179  Jepsonia parryi Dick Newell, Don Millar 2015-10-20 411 Orange South Coast, San Joaquin Hills, Buck Gully in foothills, Newport Beach 0.14 mile due south of San Joaquin and 0.43 mile SW of upper trailhead 132 Comment
  CAS-BOT-BC426246  Jepsonia parryi John Thomas Howell 1929-2-7 4094 Orange Claymine Canon, n. Samta Ana Mts. 243 Comment
  CAS-BOT-BC101919  Juglans californica C. B. Wolf 1934-9-21 6141 Orange Lower end of Brea Canyon, Puente Hills 182 Comment
  CAS-BOT-BC101959  Juglans californica Carl B. Wolf 1936-7-8 8103 Orange W. side of Durant St., Santa Ana 30 Comment
  HSC13962  Juglans californica S. M. Clapp 1966-4-10 39 Orange 1 mi. N of Brea, on Brea Canyon Rd. 61 Comment
  UCR222643  Juglans californica D. E. Bramlet 2008-6-5 4291 Orange Peninsular Range; Santa Ana Mtns. Foothills, tributary to Wier Canyon, 731 m north of SCE transmission line and 229 m west of Weir Canyon Rd. 257 Comment
  UCR247895  Juglans californica Fred M. Roberts 2013-8-9 7802 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.8 km ENE Silverado School and 1.5 km up stream Black Star Road crossing. 325 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
  UC718137  Juglans californica var. californica C. B. Wolf 1934-9-21 6141 Orange lower end Brea Canyon; Puente Hills Comment
  CAS-BOT-BC334208  Juglans hindsii R. E. Riefner, Jr. 2013-11-6 13 -233 Orange City of Laguna Beach, Laguna Canyon, N of Phillips St. on E side of Laguna Canyon Rd. 71 Comment
  SD253479  Juglans hindsii R. E. Riefner Jr. 2013-11-6 13 234 Orange City of Laguna Beach, Laguna Canyon, N of Phillips St on E side of Laguna Canyon Rd. 71 Comment
  SEINET4691551  Juglans hindsii R. E. Riefner Jr. 2011-1 11 -34 Orange City of Laguna Beach, Laguna Canyon, Laguna Wilderness Park, Stagecoach Trial, ca. 0.15 mi N of El Toro Rd. on W side of Laguna Beach Rd. 86 Comment
  UCR246397  Juglans hindsii R. E. Riefner Jr. 2013-11-6 13- 233 Orange South Coast, city of Laguna Beach, Laguna Canyon, north of Phillips Street on east side of Laguna Canyon Road 71 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
  RSA542517  Juncus acutus subsp. leopoldii Fred M. Roberts, W. Ferren 1987-4-8 3358 Orange Upper Newport Beach Back Bay, west side, North Star Beach, 0.8 km N Coney Island. 0 Comment
  UC842095  Juncus acutus subsp. leopoldii Louis C. Wheeler 1932-6-25 869 Orange inlet arm of Newport Bay Newport Bay 0 Comment
  RSA699734  Juncus acutus var. sphaerocarpus Keith E. Hoffmaster 1933-10-8 s.n. Orange Near Newport Bay. Comment
  UCR193797  Juncus balticus A. C. Sanders, Fred M. Roberts 2008-7-3 35706 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UCR191445  Juncus bufonius A. C. Sanders, Fred M. Roberts 2008-4-8 34728 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA0014066  Juncus effusus subsp. austrocalifornicus Fred M. Roberts, R. E. Riefner 2010-5-30 7022 Orange Lomas de Santiago: Loma Ridge, Hanging Man s Tree Cyn., along Hanging Man s Tree Cyn. Rd., c.a. 0.4km W Santiago Cyn. Rd., and 1.2 km N Bolero Lookout. 372 Comment
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Sep 21 2020
  UCR217669  Juncus effusus subsp. austrocalifornicus Fred M. Roberts, R. E. Riefner Jr. 2008-5-30 7022 Orange South Coast, Lomas de Santiago, Loma Ridge, Hanging Man's Tree Canyon, along Hanging Man's Tree Canyon Road, c. 0.4 km west of Santiago Canyon Road and 1.23 km north of Bolero Lookout 372 Comment
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Sep 21 2020
  UCR174228  Juncus macrophyllus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33045 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
  RSA108  Juncus mexicanus J. T. Howell 1927-7-18 436 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  UC729648  Juncus mexicanus E. R. Johnson 1932-5-5 Orange Santa Ana River bottom, near ranch house Santa Ana Canyon, Rancho Santa Ana 121 Comment
  POM201838  Juncus mexicanus L. M. Booth 1932-12-26 1381 Orange Bolsas Marsh near coast highway. Comment
  UCR247891  Juncus patens Fred M. Roberts 2012-7-18 7662 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, along Buck Gully Trail, about 0.7 km from the north terminus of Poppy Street and 1.8 km WNW summit of Pelican Hill 52 Comment
  RSA50308  Juncus phaeocephalus E. K. Balls 1949-5-9 13467 Orange [Rancho Santa Ana] Botanic Garden, Santa Ana River Canyon. 198 Comment
  POM1601  Juncus rugulosus C. B. Bradshaw 1902-7-19 s.n. Orange Santiago Canyon. Comment
  RSA699683  Juncus rugulosus Keith E. Hoffmaster 1935-4-14 s.n. Orange Trabuco creek., 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. Comment
  RSA748271  Juncus xiphioides A. C. Sanders, Fred M. Roberts 2008-6-17 35510 Orange Middle section of Weir Canyon, SSE of Walnut Canyon Reservoir. 225 Comment
  RSA750922  Juncus xiphioides A. C. Sanders, Fred M. Roberts 2008-7-3 35704 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA17462  Juncus xiphioides Percy C. Everett 1936-9-19 8272 Orange Santa Ana Mountains, Silverado Canyon. 0.7 mile E of Shadybrook Resort. 701 Comment
  RSA0130691  Juniperus californica S. B. Bryant 1934-1-13 5567 Orange Midway between San Juan Capistrano and San Juan Hot Springs. Comment
  UCR240182  Juniperus rigida var. conferta R. E. Riefner Jr. 2011-7-1 11- 81 Orange South Coast, city of Newport Beach, beach area between Shorecliff Road and Cameo Shores Road 18 Comment
  UCR275232  Juniperus virginiana Robert DeRuff 1998-1 508 Orange South Coast, upper Newport Bay, below and north of intersection of Back Bay Dr., with Eastbluff Dr. 3 Comment
  RSA25894  Keckiella antirrhinoides Jenkins 1929-2-6 9858 Orange Claymine Canyon 213 Comment
  RSA765301  Keckiella antirrhinoides Doris Bowers 1971-4-9 1697 Orange SW of Corona, Santa Ana Mts. 457 Comment
  NY786525  Keckiella antirrhinoides var. antirrhinoides D. C. Michener 1980-6-5 3668 Orange Santa Ana Mountains. San Juan river valley, on terrace near abandoned mine(s). Comment
  UC1618100  Keckiella antirrhinoides var. antirrhinoides Donald G. Nelson 1935-7-6 259 Orange San Juan Canyon 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
  SEINET7067517  Keckiella cordifolia A. G. Vestal 1947-6-12 s.n. Orange San Juan Canyon. Coordinate datum: NAD27. UTM Zone 11, 448887mE, 3712881mN. Comment
  UCR239601  Kickxia O. F. Clarke 2004-7-19 s.n. Orange South Coast, Talbert Regional Park, Costa Mesa, at end of 19th St. 3 Comment
  JEPS1808  Kickxia elatine Frank W. Peirson 1927-9-25 7676 Orange flats below Wintersberg Comment
  UCSB48011  Kickxia elatine Roberts, Fred 1980-6-30 Orange Irvine; southern shore of Veeh Reservoir at corner of Ridgeroute and Moulton Pkwy 92 Comment
  RSA683072  Koeleria macrantha Fred M. Roberts 2003-3-13 5592 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1,320m NW Sycamore Gate and 880m W Cristianitos Rd., ( 33 deg 29' 32N, 117 deg 34' 18W; [UTM 11S-04 46 917mE, 37 05 804mN 179 Comment
  RSA725959  Koelreuteria bipinnata T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1903 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive. 6 Comment
  SEINET4559543  Koelreuteria bipinnata T. B. Salvato, Katie Kurtz, Mitch Provance 2006-1 1903 Orange South Coast; Irvine, San Diego Creek Flood control channel between Campus Drive and Michelson Drive 6 Comment
  RSA731652  Kyllinga brevifolia Fred M. Roberts 2007-10-29 6627 Orange Laguna Beach: Temple Hill, Nyes Place, c.a. 0.2 km S Moulton Meadows Park. 232 Comment
  CAS-BOT-BC111951  Kyllinga brevifolia R. A. Mackessy 1955-7-29 s.n. Orange Anaheim Comment
  RSA699580  Lactuca scariola Anonymous s.n. Orange Santa Ana Comment
  SD80932  Laennecia coulteri James Henrickson 1970-8-22 5297 Orange Bolsa Chica Salt Marsh,dry northern portion, 2.5 miles northnorthwest of Huntington Beach Comment
  UCR7865  Lagophylla ramosissima O. F. Clarke 1968-7-28 s.n. Orange Santa Ana Mtns, Between Los Pinos Job Corps Camp and locked forestry gate on road to Santiago Peak. 1037 Comment
  RSA712945  Lagophylla ramosissima subsp. ramosissima Fred M. Roberts, Robert L. Allen 2005-10-15 6310 Orange entrance to Falcon Group Camp, 2.1km ESE Los Pinos Peak and 0.3km NE campground. 1008 Comment
  CAS-BOT-BC383069  Lagunaria patersonia R. E. Riefner, Jr. 2014-6-6 14 -155 Orange City of Laguna Beach, W end of Heisler Park, vicinity of High Dr. and Cliff Dr. 9 Comment
  SD247453  Lagunaria patersonia R. E. Riefner Jr. 2011-6-29 11 76 Orange City of Laguna Beach, general area of Shaw's Cove, vicinity of Cliff Drive and Fairview Street. 0 Comment
  SD220025  Lamarckia aurea Mark A. Elvin 2004-5-2 3427 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  RSA184155  Lamium amplexicaule I. L. Wiggins 1966-2-12 20440 Orange Orange grove on W side of State College Blvd. opposite Electra Way, Fullerton. Comment
  UCSB41749  Lamium amplexicaule Fountain, L. 1966-2-16 Orange Northwest corner of Orangethorpe and State College Blvd Comment
  UCD132262  Lasiospermum bipinnatum Peter Evans 2013-3-23 s.n. Orange Niguel Botanical Preserve located at 29751 Crown Valley Parkway, Laguna Niguel. 99 Comment
  HSC5147  Lasthenia californica S. M. Clapp 1966-4-10 46 Orange 10 mi. into Black Star Canyon, near the summit 244 Comment
  SD73477  Lasthenia glabrata subsp. coulteri C. B. Wolf 1935-3-24 6295 Orange 1.0 mile north of Buena Park. Comment
  UC718548  Lasthenia glabrata subsp. coulteri Carl B. Wolf 1935-3-24 6295 Orange Comment
  POM48548  Lasthenia gracilis F. M. Reed 1925-5-14 4968 Orange Aliso Canon. Comment
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May 1 2011
  RSA12902  Lathyrus vestitus subsp. alefeldii P. C. Everett 1935-2-10 6292 Orange At base of West Ladd Trick Trail, mouth of Baker Canyon, Santa Ana Mountains 335 Comment
  JEPS68631  Lavatera assurgentiflora subsp. assurgentiflora Lawrence M. Booth 1932-5-26 1121 Orange Newport Bay Comment
  RSA699674  Layia platyglossa Keith E. Hoffmaster 1935-4-19 s.n. Orange Santiago can. near Silverado ca., Santa Ana Mountains. 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
  RSA787497  Lepechinia cardiophylla Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49705 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  SD152820  Lepechinia cardiophylla Steve Boyd, Kyle Boyd 1992-7-9 7653 Orange Northern Santa Ana Mountains, 3.5 miles south of junction of Main Divide and Skyline Roads. Comment
  RSA697417  Lepidium didymum J. R. Bruff 1927-3-22 2 -P Orange Near Newport. Comment
  JEPS53664  Lepidium lasiocarpum var. lasiocarpum L. M. Booth 1932-5-24 1084 Orange Newport Bay Comment
  UC494728  Lepidium lasiocarpum var. lasiocarpum Philip A. Munz 1932-3-29 12191 Orange Costa Mesa Comment
  IRVC1093  Lepidium nitidum D. Orr 1965-4-10 Orange Trabuco Road, 3mi E El Toro Marine Base. El Toro Comment
  UCR60664  Lepidium nitidum var. nitidum C. B. Wolf 1932-2-15 02657 Orange Rancho Santa Ana Botanic Garden, above the Rubus beds 183 Comment
  JEPS53765  Lepidium virginicum Alice King 1908-3-9 Orange Anaheim Plain Comment
  UCSB52926  Lepidium virginicum Roberts, Jr., Fred 1983-3-16 Orange Laguna Beach, Sycamore Hills, central ridge; 1.1 km NNE jct. El Toro and Laguna Cyn. Rds.; 5.4 km. ESE Signal Peak 170 Comment
  RSA328  Lepidium virginicum var. pubescens J. T. Howell 1927-6-21 175 Orange Near ranch houses, Rancho Santa Ana. 152 Comment
  RSA789590  Leptochloa fusca subsp. fascicularis R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49632 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  POM47583  Leptochloa fusca subsp. uninervia I. M. Johnston 1924-8-29 s.n. Orange 1 mile north of Santa Ana. Comment
  RSA161259  Leptochloa fusca subsp. uninervia P. H. Raven 1961-10-15 16851 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing 61 Comment
  RSA710596  Leptochloa fusca subsp. uninervia Mark Elvin 2004-5-2 3420 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
  RSA725526  Leptochloa fusca subsp. uninervia Fred M. Roberts 2007-9-11 6576 Orange San Juan Capistrano: San Juan Creek at the confluence with Trabuco Creek. 17 Comment
  CLARK-A1528-4716  Leptochloa uninervia John C. Roos 1936-10-9 2509 Orange Olive Comment
  UC537285  Leptochloa uninervia Lawrence M. Booth 1932-7-18 1262 Orange Costa Mesa Newport Bay Comment
  UCR133165  Leptodactylon californicum Adrian Wolf 2000-3-24 458 Orange Santa Ana Mtns., North Ranch Policy Plan Area, Lake View Road 518 Comment
  UC908087  Leptodactylon californicum subsp. glandulosum John Thomas Howell 1927-6-26 2610 Orange w Sierra Peak (Santa Ana Mts.); , w of Sierra Peak 609 Comment
  POM3492  Leptosiphon androsaceus Crawford s.n. Orange Laguna Mts. 305 Comment
  RSA696977  Leptosiphon floribundus Keith E. Hoffmaster 1932-4-17 s.n. Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  RSA73675  Leptosiphon floribundus F. W. Peirson 1925-4-10 5741 Orange In Silverado Canyon. 610 Comment
  CAS-BOT-BC402204  Leptosiphon floribundus subsp. floribundus R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49714 Orange Santa Ana Mountains: Bedford Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail Comment
  POM49705  Leptosiphon liniflorus L. R. Abrams 1901-06 1797 Orange Trabuco Canyon Comment
  RSA542534  Leptosiphon liniflorus Fred M. Roberts, K. Keane 1988-5-25 3991 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker. 91 Comment
  RSA0011212  Leptosiphon parviflorus Eileen McCollum 1932-4-3 s.n. Orange Near Mojeska's, Santa Ana Mts Comment
  POM361808  Lessingia glandulifera var. glandulifera George R. Johnstone 1928-9-3 s.n. Orange Keen Camp, San Jacinto Mts. 1341 Comment
  UC1543184  Leymus condensatus Donald G. Nelson 1935-6-27 329 Orange beaches s Corona del Mar (bluffs facing ocean, s of mouth of Newport Bay) Comment
  CAS-BOT-BC272201  Leymus triticoides Carl B. Wolf 1932-6-13 3726 Orange Fullerton, Malvern and Nicholas Aves. 53 Comment
  POM202496  Leymus triticoides L. M. Booth 1932-6-7 1156 Orange Newport Lagoon. Comment
  RSA0011628  Leymus triticoides Rankin s.n. Orange Santa Ana Comment
  RSA254942  Limonium californicum var. mexicanum C. W. Tilforth 1975-9-6 1042 Orange North-east shoreline of upper bay, Newport Beach. Comment
  UC1789094  Limonium duriusculum R. E. Riefner Jr. 2005-9-9 05 -664 Orange City of Lake Forest, along Aliso Creek near Portola Pkwy, at El Toro Road. 225 Comment
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Jul 5 2010
  RSA723546  Limonium ramosissimum R. E. Riefner 2005-9-16 5 -667 Orange City of Newport Beach, E of Newport Bay and E of Bayside Dr. Big Canyon Creek drainage. 6 Comment
  RSA723548  Limonium ramosissimum R. E. Riefner 2006-8-13 6 -391 Orange Upper Newport Bay at Jamboree Rd. 9 Comment
  UCD98535  Limonium sinuatum E. Frost 1996-5-11 17 Orange Newport Back Bay, 25 yards in along bike path. Comment
  SEINET6045534  Linanthus E. W. Lathrop 1974-6-27 7420 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon. Cleveland National Forest. Comment
  CAS-BOT-BC226778  Linanthus californicus C. B. Wolf 1931-3-6 1831 Orange 1 1/2 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  RSA468460  Linanthus californicus subsp. glandulosus Claire Kibbe 1936-07 19983 Orange Santa Ana Canyon. Comment
  JEPS58364  Linanthus dianthiflorus Alice King Mar 1908 Orange near Anaheim; Santiago Creek Comment
  RSA0127419  Linanthus dianthiflorus Fred M. Roberts 2016-3-17 8014 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  RSA73085  Linanthus dianthiflorus subsp. dianthiflorus F. W. Peirson 1923-3-25 3369 Orange Aliso Creek, near Laguna Beach. Comment
  RSA3169  Linanthus dianthiflorus subsp. dianthiflorus C. B. Wolf 1932-3-8 2694 Orange Santiago Dam, W. base Santa Ana Mts. 305 Comment
  UC718484  Linanthus parviflorus C. B. Wolf 1935-4-7 Orange San Juan Hot Springs Santa Ana Mts., Mouth of San Juan Hot Springs Canyon 213 Comment
  RSA773515  Linaria canadensis var. texana Fred M. Roberts 1999-5-3 5205 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
  UCR186427  Linum grandiflorum Robert DeRuff 1994-5-16 469 Orange Southern Coast, Newport Beach, Newport Back Bay, south of 23rd St., below a row of houses 5 Comment
  RSA84362  Lithophragma affine subsp. mixtum F. W. Peirson 1925-4-11 5734 Orange Silverado Canyon, Santa Ana Mountains. 610 Comment
  IRVC1116  Lobularia maritima C. Duncan 1965-4-4 Orange Newport Beach Comment
  SEINET192714 Image available Lolium perenne C. B. Wolf 1932-6-13 Orange Fullerton Rose Drive 53 Comment
  UC729941  Lolium perenne Carl B. Wolf 1932-6-13 3728 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  RSA651759  Lolium perenne Diane T. Liggett 1981-5-16 6 Orange Riverside Freeway (91) east to Imperial Hwy, south to Nohl Ranch Road, east to Serrano Ave., south on Hidden Canyon Road, 1 km into Weir Canyon. Comment
  RSA734893  Lolium perenne subsp. multiflorum A. C. Sanders, Mitch Provance 2008-5-20 35419 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile blow Modjeska Canyon confluence. 345 Comment
  UCR193070  Lolium perenne subsp. multiflorum A. C. Sanders, Mitch Provance 2008-5-20 35419 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  JEPS69291  Lolium temulentum Lawrence M. Booth 1932-5-19 1078 Orange Newport Bay Comment
  RSA1492  Lomatium dasycarpum subsp. dasycarpum E. R. Johnson 1929-4-11 1255 Orange Sierra Peak Trail. Comment
  RSA773521  Lomatium dasycarpum subsp. dasycarpum Fred M. Roberts 1999-5-3 5212 Orange Lomas de Santiago: Loma Ridge, Central Limestone Canyon, west slope, 2.2 km NW Bolero Lookout and 0.8 km NE Bolero Spring. 397 Comment
  RSA751165  Lomatium lucidum D. E. Bramlet 2008-5-9 4267 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
  UCR18584  Lomatium lucidum John C. Roos 1960-5-30 s.n. Orange Peninsular Ranges; Santa Ana Mtns, ridge at head of Hagador Canyon 1070 Comment
  UCR217285  Lomatium lucidum Mark A. Elvin, Laura Soloro, Adam Sriro 2003-1-10 2218 Orange Peninsular Range; Santa Ana Mtns., c. 1.6 mi. west of Sierra Peak along road to powerlines, near Claymont Clay Mine 457 Comment
  SEINET12118936  Lomatium utriculatum J. F. Bright, Wyman, C. 1933-1 8100 Orange in Santa Ana foothills Comment
  SD140137  Lonicera subspicata B. Pitzer, S. Hemstreet 1992-5-21 1940 Orange Cleveland National Forest; State Highway 74, 1.0 mile yuphill from the 2000 foot marker, and left ca. 0.1 mile on an old paved road. 760 Comment
  UCSC001314  Lonicera subspicata Peter Kamb 1948-6-19 1104 Orange Holy Jim Canyon, Santa Ana Mts. 610 Comment
  RSA768119  Lonicera subspicata var. johnstonii E. W. Lathrop 1974-6-27 7424 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCR173936  Lotus heermannii A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33005 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
  RSA621863  Lotus heermannii var. heermannii R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  POM50645  Lotus micranthus L. R. Abrams 1901-06 1825 Orange Santiago Peak Trail 915 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
  UCR174218  Lotus purshianus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33042 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
  UC1543236  Lotus salsuginosus Donald G. Nelson 1935-3-17 169 Orange Carbon Canyon, ne area of Orange County Puente Hills Comment
  HSC1875  Lotus scoparius J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  JEPS55886  Lotus scoparius Alice King May 1902 Orange Newport Comment
  RSA406883  Lotus scoparius M. B. Dunkle 1933-4-9 3286 Orange Dana Point. Comment
  RSA5430  Lotus scoparius B. D. Stark 1933-1-3 4478 Orange Rancho Santa Ana near pear orchard. 122 Comment
  UCR4073  Lotus scoparius Carole Sims 1965-3-28 s.n. Orange South Coastal Plains, 100 yards from Pacific Coast Highway on Salt Creek Road toward the beach. Between South Laguna and Dana Point 18 Comment
  IRVC2240  Lotus scoparius subsp. scoparius J. Morgan 1965-4-4 Orange Laguna Canyon. Laguna Beach Comment
  RSA752849  Lotus scoparius subsp. scoparius Fred M. Roberts 2009-4-21 7155 Orange Dana Point Headlands: southern cliffs, 0.7 km W Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  RSA681947  Lotus scoparius var. scoparius Fred M. Roberts, David E. Bramlet 2003-3-7 5570 Orange Donna O'Neill Land Conservancy; Ridge west of Christianitos Canyon, Middle Ridge Trail, 1.1km NW Gato Gate. 178 Comment
  RSA725937  Lotus scoparius var. scoparius R. E. Riefner 2006-7-2 06 -277 Orange Costa Mesa, St. Route 73 at 55 Freeway interchange 20 Comment
  HSC98231  Lotus strigosus S. M. Clapp 1966-4-3 5 Orange Union Oil Prop., just S of Imperial Hwy. and E of Associated Rd. 61 Comment
  RSA649262  Lotus strigosus T. Pringle 1966-3-22 68 Orange In Silverado Canyon Comment
  RSA659547  Lotus strigosus P. Shirokawa 1998-5-7 15 Orange Cleveland National Forest- Trabuco Ranger District, 0.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 808 Comment
  IRVC18659  Lotus strigosus var. hirtellus Gordon A. Marsh 1981-4-15 Orange UCI Ecological Preserve; north-facing slope. Irvine Comment
  IRVC18811  Lotus strigosus var. strigosus Karlin G. Marsh 1983-4-11 s.n. Orange Laguna Beach: Sycamore Hills; dirt road surface of central ridge line. southern coastal Comment
  RSA90341  Lotus wrangelianus F. W. Peirson 1922-5-18 4083 Orange Santa Ana River Canyon Comment
  UCR266379  Ludwigia D. E. Bramlet 2009-11-20 4426 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  UCR207792  Ludwigia hexapetala O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  RSA48859  Ludwigia peploides subsp. peploides J. C. Roos 1949-10-1 4685 Orange Doheney Beach. [Now Capistrano Beach] Comment
  UCR179763  Ludwigia repens R. E. Riefner Jr. 2006-10-8 06- 483 Orange South Coast, Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Road 51 Comment
  POM201839  Lupinus L. M. Booth 1932-5-19 1072 Orange Newport Bay. Comment
  UCR194560  Lupinus andersonii A. C. Sanders, Fred M. Roberts 2008-4-8 34763 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
  RSA749847  Lupinus bicolor D. Bramlet, Weena Sangkatavat 2008-3-27 4130 Orange Bee Canyon, Bowerman landfill site. 528 m S of the Bee Canyon access road and 440 m W of the active landfill. Comment
  IRVC24501  Lupinus bicolor subsp. umbellatus Fred M. Roberts, Gordon Marsh 1986-2-28 2623 Orange Mission Viejo: N of Oso Parkway; 4.2km NNE Saddleback Community College. Southern Coastal 200 Comment
  SEINET10484966  Lupinus bicolor subsp. umbellatus Beauchamp 1972-3-24 BEAUCHAMP 3238 Orange On dry slopes at thirst, san clemente island. 600 Comment
  IRVC2307  Lupinus excubitus var. hallii Pat Rolfe 1965-3-30 s.n. Orange Trabuco Canyon. Santa Ana Mountains Comment
  IRVC2316  Lupinus excubitus var. hallii A. S. Boughey, Pat Pembrook 1965-6-15 1038 Orange Silverado Canyon near Silverado. Santa Ana Mountains Comment
  RSA503884  Lupinus excubitus var. hallii M. B. Dunkle 1938-5-28 5285 Orange San Juan Canyon Comment
  RSA2086  Lupinus hirsutissimus Carl B. Wolf 1931-3-6 1843 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  SD143895  Lupinus hirsutissimus Scott D. White 1997-3-28 4837 Orange Santa Ana Mountains, above Modjeska Canyon, proposed water tank site; USGS Santiago Peak 7.5' quad. 424 Comment
  UCR97820  Lupinus hirsutissimus Scott D. White 1997-3-28 4837 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  CLARK-A1528-2843  Lupinus latifolius C. P. Smith 1937-5-10 Orange San Juan Capistrano Comment
  UCR177285  Lupinus microcarpus Scott D. White, Amanda Duchardt 2003-5-1 9152 Orange Santa Ana Mountains, Slopes above the west side of Canada Gobernadora and adjacent small canyon to the west 122 Comment
  RSA722341  Lupinus sparsiflorus Unspecified s.n. Orange Orange County park Comment
  IRVC16566  Lupinus sparsiflorus subsp. sparsiflorus Gordon A. Marsh, Karlin G. Marsh 1978-5-2 s.n. Orange Santa Ana Mountains; Silverado Truck Trail. Peninsular Ranges 884 Comment
  RSA542384  Lupinus sparsiflorus subsp. sparsiflorus Fred M. Roberts 1988-3-15 3850 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark 149 Comment
  RSA28731  Lupinus sparsiflorus subsp. sparsiflorus R. S. Woglum 1938-5-8 1614 Orange Ortega Hwy, Santa Ana Mts Comment
  RSA734641  Lupinus succulentus A. C. Sanders, Fred M. Roberts 2008-3-25 34573 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
  UCR281555  Lupinus succulentus Mitch Provance, Jeremiah George 2017-3-20 317- 120 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  RSA0055061  Lupinus succulentus Jim Shevock 1971-3-8 757 Orange Trabuco Canyon, Santa Monica Mountains. 396 Comment
  RSA0059075  Lupinus succulentus CNPS Accuracy Assessment Team 2014-5-8 9027 Orange Limestone Canyon. Comment
  IRVC2359  Lupinus truncatus C. Weir 1965-5-9 s.n. Orange Newport Beach, [Newport] Back Bay. Southern Coastal Comment
  IRVC2360  Lupinus truncatus D. Ibbetson 1965-4-10 s.n. Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA414394  Lupinus truncatus M. B. Dunkle 1933-3-5 3080 Orange San Juan Canyon. Comment
  UCR274870  Lycium brevipes var. brevipes R. E. Riefner Jr. 2012-1-16 12- 7 Orange South Coast, city of Newport Beach, Corona Del Mar, Buck Gully, near Little Corona Beach, vicinity of Poppy Ave. and Ocean Blvd., slope adjacent to restroom facility 15 Comment
  SD248502  Lycium brevipes var. hassei R. E. Jr. Riefner 2006-3-19 06 58 Orange City of San Clemente, San Clemente State Beach, SSW ca. 100 m from the intersection of Ave. Calafia and South Ola Vista Rd. Along trail. 39 Comment
  UCR251743  Lycium brevipes var. hassei R. E. Riefner Jr. 2014-4-12 14- 77 Orange South Coast, City of San Clemente, San Clemente State Beach, SSW c. 100 m from the intersection of Ave. Califia and South Ola Vista Rd. 40 Comment
  OBI33516  Lysimachia arvensis Nancy J. Moriarty 1973-5-27 730527 -3 Orange San Clemente State Beach 1 mi S of the end of Ave Califia in the sand below the bluffs Comment
  UC73416  Lythrum californicum E. A. Zumbro 1902-1 389 Orange Orange County Comment
  UCR193929  Lythrum californicum A. C. Sanders, Fred M. Roberts 2008-7-16 35843 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  UCSB47995  Lythrum californicum Roberts, Fred 1980-7-7 Orange Santa Ana Mtns; San Juan Canyon, Hwy 74, 2.4km ENE San Juan Guard Station; 0.3km W Bench Mark 1100 315 Comment
  UCR207599  Lythrum hyssopifolia O. F. Clarke 2004-5-19 s.n. Orange South Coast, Fairview Park, Costa Mesa 24 Comment
  RSA94369  Madia gracilis J. T. Howell 1927-6-26 2613 Orange Claymines Canyon, Santa Ana Mts Comment
  CLARK-A1528-5623  Madia sativa John C. Roos 1960-5-30 Orange Santa Ana Mountains Comment
  RSA7394  Malacothamnus densiflorus var. densiflorus Carl B. Wolf 1933-8-24 5385 Orange along road south of Bedford Peak on main divide. 1098 Comment
  OBI12364  Malacothamnus fasciculatus Louis C. Wheeler 1932-7-9 941 Orange Santa Ana River, 5 mi below Prado 152 Comment
  POM124505  Malacothamnus fasciculatus L. R. Abrams 1918-5-26 s.n. Orange Near Laguna Beach Comment
  RSA59172  Malacothamnus fasciculatus E. K. Balls 1950-7-17 14928 Orange Native to Botanic Garden. 183 Comment
  LA41778  Malacothamnus fasciculatus var. fasciculatus Louis C. Wheeler; 1932-7-9 941 Orange Santa Ana River 5 mi. below Prado 152 Comment
  UC1122014  Malacothamnus fasciculatus var. fasciculatus A. Lewis Apr 1934 398 Orange Tomato Spring Canyon 182 Comment
  CDA23124  Malacothrix saxatilis Mark A. Elvin, D. G. Kelch 2006-12-9 5328 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 500 meters northeast of road to CA Department of Fish and Game office. Comment
  CAS-BOT-BC347890  Malacothrix saxatilis var. tenuifolia John Thomas Howell 1927-6-9 2463 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 152 Comment
  RSA768118  Malacothrix saxatilis var. tenuifolia E. W. Lathrop 1974-6-27 7407 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCSB50647  Malacothrix saxatilis var. tenuifolia Roberts, Fred 1982-6-3 Orange South Laguna: Niguel Hill, at end of Sea Island Dr., 1.9km SE Aliso Peak 210 Comment
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Dec 12 2018
  IRVC29870  Malephora crocea Mark A. Elvin, D. Kelch 2006-12-9 5297 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  CAS-BOT-BC167852  Malosma laurina John Thomas Howell 1927-7-24 2826 Orange Sandy floor of Claymine [Canon] Canyon, n. Santa Ana Mts. 152 Comment
  RSA447  Malosma laurina J. T. Howell 1927-7-16 415 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCD116857  Malosma laurina P. B. Kennedy 1925-1-12 s.n. Orange Irvine Range. Comment
  UCR228797  Malosma laurina Dick Newell, Don Millar 2011-5-3 138 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  UCR193467  Malva nicaeensis A. C. Sanders, T. B. Salvato 2008-5-13 35356 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA759167  Malva parviflora A. C. Sanders, Fred M. Roberts 2008-6-17 35456 Orange Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  UCR140806  Malva parviflora Robin G. Marushia 2004-4-16 005 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
  RSA5574  Malva parviflora Carl B. Wolf 1932-6-28 3768 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA657743  Malva parviflora Ken Greby 1985-4-18 22 Orange alongside Laguna Canyon Rd. approx. 1.5 km. NE from El Toro Rd. 46 Comment
  CDA35815  Malvella leprosa Robert L. Pope 1957-5-17 Orange [No other data] 0 Comment
  JEPS42469  Marah macrocarpa L. M. Booth 1932-5-12 1020 Orange Newport Bay Comment
  RSA2108  Marah macrocarpa C. B. Wolf 1931-2-9 1829 Orange Santa Ana Canyon between Horseshoe Bend and Esperanza, over whire fence along RR. 137 Comment
  RSA696064  Marah macrocarpa Keith E. Hoffmaster 1928-12-30 s.n. Orange San Onofre. Comment
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Nov 19 2013
  HSC14229  Marrubium vulgare C. L. Hitchcock, C. V. Muhlick 1964-3-17 23073 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  OBI17602  Marrubium vulgare Kurt R. Neisess 1975-12-20 s.n. Orange Fullerton Hills area Comment
  UCR232927  Marsilea drummondii R. E. Riefner Jr. 2007-9-30 07- 415 Orange city of Yorba Linda, Santa Ana Canyon, urban runoff tributary to Santa Ana River. La Palma Ave. at Via Lomas de Yorba East 110 Comment
  CAS-BOT-BC67807  Marsilea vestita Arthur Haupt 1935-4-12 s.n. Orange Costa Mesa Comment
  RSA665952  Marsilea vestita Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5423 Orange Rancho Mission Viejo: South of San Juan Creek, 0.4km ESE Median Rancho Survey Marker., PCR Vernal Pool 7. 238 Comment
  UCR191468  Matricaria matricarioides A. C. Sanders, Fred M. Roberts 2008-4-8 34733 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  CAS-BOT-BC60301  Matthiola incana E. K. Balls 1955-4-4 20423 Orange West end of Newport Beach. 3 Comment
  JEPS13969  Matthiola incana D. L. Crawford 1922-8-3 743 Orange Aliso Point; Laguna Beach Region, Aliso Point Comment
  RSA594896  Meconella denticulata Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4909 Orange Santa Ana Mountains: San Juan Canyon, CA route 74, Lower San Juan Picnic Ground. 354 Comment
  UC1607983  Medicago Donald G. Nelson 1935-3-30 200 Orange hills e. Fullerton (at head of Raymond Ave.) 76 Comment
  IRVC19541  Medicago minima R. L. Allen 1983-1 1983 Orange Irvine: near NE corner of Culver at Irvine Blvd. Southern Coastal Comment
  IRVC2373  Medicago polymorpha Anonymous 1965-3-14 Orange Dana Point. Southern Coastal Comment
  IRVC2383  Medicago polymorpha C. Thompson 1965-4-10 s.n. Orange Newport Beach; Corona del Mar, Corona Highlands. Southern Coastal Comment
  JEPS65509  Medicago polymorpha Lawrence M. Booth 1932-5-19 1079 Orange Newport Bay Comment
  RSA731980  Medicago polymorpha A. C. Sanders 2008-4-1 34657 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  IRVC10699  Medicago sativa B. T. Gittins 1963-4-20 177 Orange Jamboree and Palisades. Newport Beach Comment
  CAS-BOT-BC354338  Medicago truncatula R. E. Riefner, Jr. 2010-6-11 10 -62 Orange City of Fountain Valley, Southpark Ave. at Euclid St. 9 Comment
  RSA785574  Melaleuca nesophila R. E. Riefner Jr., Cindy Hopkins 2011-7-1 11 -82 Orange City of Newport Beach. Beach area west of the end of Cameo Shores Road. South ca. 1 mi from Poppy Ave. 2 Comment
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Dec 20 2012
  UCD170648  Melaleuca nesophila R. E. Riefner Jr. 2011-7-1 11- 82 Orange City of Newport Beach, beach area west of the end of Cameo Shores Road; south ca. 1 mi from Poppy Avenue. 1 Comment
  CAS-BOT-BC414241  Melaleuca viminalis R. E. Riefner, Jr. 2014-7-13 14 -242 Orange City of Seal Beach, N side of Westminster Blvd., ca. 0.2 mi W of Road B 5 Comment
  RSA262075  Melica imperfecta E. W. Lathrop 1966-4-18 6171 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA697718  Melica imperfecta Anonymous s.n. Orange Orange County park Comment
  RSA703723  Melica imperfecta D. E. Bramlet, Fred M. Roberts 2003-3-13 3334 Orange Donna O'Neill Reserve. North East ridge of the reserve, 915m W of Cristianitos Rd. & 1.2km N of the E-W access road., (11S, 04 46 770E, 37 06 080N) 195 Comment
  RSA749487  Melica imperfecta Fred M. Roberts, Linda Farley 2008-3-28 6821 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber's Peak, Irvine Land Conservancy. 437 Comment
  SBBG119063  Melica imperfecta D. E. Bramlet, F. Roberts 2003-3-13 3334 Orange Donna O'Neill Reserve, NE ridge of reserve, ca. 915 m W of Cristianitos Rd and 1.2 km N of the E-W access rd (San Clemente: T8S R7W S12, NE of the NE 195 Comment
  UCR217458  Melica imperfecta Mark A. Elvin 2003-3-30 2397 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  IRVC24248  Melilotus albus Fred M. Roberts, G. A. Marsh 1985-10-25 2505 Orange Santa Ana River; adjacent to Costa Mesa, 1.3km SSW Adams St. bridge, Southern Coastal 2 Comment
  JEPS65541  Melilotus albus L. M. Booth 1933-10-18 Orange Newport Comment
  RSA701691  Melilotus albus Fred M. Roberts, David Bramlet 2003-6-6 5896 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Canyon, 0.86 km SSW Gato Gate and 0.39 km W of Cristianitos Road. Comment
  RSA798096  Melilotus albus Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49585 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  IRVC2409  Melilotus indicus S. Holloway Apr 1965 s.n. Orange Corona del Mar. Newport Beach Comment
  IRVC2420  Melilotus indicus C. Hinesly 1965-2-13 s.n. Orange Costa Mesa; 257 Santa Isabel. Southern Coastal Comment
  IRVC2426  Melilotus indicus Janet Bryant 1965-3-14 Orange Costa Mesa; Redlands Dr. and Santa Isabel. Southern Coastal Comment
  IRVC2427  Melilotus indicus C. Hooven 1965-4-17 s.n. Orange Santa Ana Heights; Spruce Ave. and Palisades. Southern Coastal Comment
  CLARK-A1528-981  Melilotus indicus Patricia A. Andrews 1975-6-26 5919 Orange Capistrano Bay Beach 9 Comment
  RSA733698  Melilotus indicus Keith E. Hoffmaster 1934-1 286 Orange Santa Ana Comment
  JEPS42777  Mentzelia micrantha John Thomas Howell 1927-7-3 2642 Orange Santa Ana Mts., Claymine Canyon 304 Comment
  POM49182  Mentzelia veatchiana L. R. Abrams 1901-6-15 1880 Orange Santiago Peak trail. Comment
  JEPS42917  Mesembryanthemum crystallinum L. M. Booth 1932-6-29 1224 Orange Newport Bay Comment
  UCR252194  Mesembryanthemum crystallinum Marissa Manahan 2011-5-7 s.n. Orange Newport Beach, Corona Del Mar State Beach; south of Avocado Ave. off Ocean Blvd. 25 Comment
  UCR93934  Mesembryanthemum crystallinum B. G. Pitzer 1996-4-30 2809 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA144559  Mesembryanthemum crystallinum P. H. Raven 1957-9-28 11400 Orange Laguna Beach. Comment
  RSA278  Mesembryanthemum crystallinum J. T. Howell 1927-6-30 251 Orange Bryant Ranch near Long Beach. 15 Comment
  CHSC26281  Mesembryanthemum nodiflorum Michael Ward 1970-8-22 V- 4 Orange Ca. 4 mi. So. of Seal Beach, NE of Pacific Coast Hwy. and Bolsa Chica St. Pk. at Bolsa Chica Salt Marsh. 0 Comment
  RSA18532  Mesembryanthemum nodiflorum C. B. Wolf 1927-7-23 665 Orange Along the coast just north of San Clemente. Comment
  RSA65535  Mesembryanthemum nodiflorum F. W. Peirson 1920-6-25 2209 Orange 5 miles south of San Juan Capistrano. Comment
  SEINET11942235  Mesembryanthemum nodiflorum J. F. Bright, Wyman, C. 1933-1 8222 Orange Comment
  RSA608535  Microseris douglasii subsp. platycarpha D. E. Bramlet 1993-3-27 2297 Orange University of California, Irvine Campus, adjacent to the UCI Ecological Reserve. The site is 150 ft. SW of the end of Los Trancos Dr. & 250 ft. E of the reserve entrance. 61 Comment
  UCR171017  Microseris douglasii subsp. platycarpha R. E. Riefner Jr. 2006-4-12 06- 117 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Rd. 46 Comment
  RSA785531  Microseris lindleyi Doris Bowers 1971-4-19 1683 Orange Black Star Canyon Indian Site 762 Comment
  JEPS87331  Mimulus David M. Thompson 1992-5-16 1066 b Orange 2.4 mi n and w Hwy 74 (along USFS Road 3S04 (n side of paved loop allowing access to Main Divide Road)); Santa Ana Mts. 950 Comment
  UC1424855  Mimulus Bennett, Dunn and Dziekanowski 1976-7-21 439 Orange Pacific Island Estates condominium Laguna Hills Comment
  RSA759107  Mimulus aurantiacus Robt. Allen, Reginald Durant 2008-9-28 s.n. Orange Laurel Spring, just below Harding Truck Trail. Survey Waypoint no. 85. Comment
  SEINET12269785  Mimulus aurantiacus Unknown 1933-1 8205 Orange back of La Guna Beach Comment
  UCR96610  Mimulus aurantiacus var. aurantiacus B. G. Pitzer 1996-4-30 2801 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  JEPS87335  Mimulus aurantiacus var. pubescens David M. Thompson 1992-5-16 1068 Orange 0.6 mi sw San Bernardino Co. line (along Carbon Canyon Road (Hwy 142)) 230 Comment
  RSA16344  Mimulus aurantiacus var. puniceus Percy C. Everett 1935-6-18 7189 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  RSA564321  Mimulus aurantiacus var. puniceus B. Pitzer, S. Hemstreet 1992-5-27 1965 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 mi. (airline) W of El Cariso Campground. 762 Comment
  RSA648197  Mimulus brevipes Karl Price 1988-5-21 54 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
  RSA734599  Mimulus brevipes A. C. Sanders, Fred M. Roberts 2008-5-6 35230 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 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
  RSA0045522  Mimulus brevipes Stephen Bruff s.n. Orange Lemon H[e]ights [a neighborhood of Tustin?]. PR8. Comment
  RSA769620  Mimulus cardinalis E. W. Lathrop 1974-6-27 7428 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCR193808  Mimulus cardinalis A. C. Sanders, Fred M. Roberts 2008-7-16 35835 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  POM256712  Mimulus clevelandii W. Pequegnat 1940-6-15 s.n. Orange Trabuco Peak 1220 Comment
  RSA124722  Mimulus clevelandii E. K. Balls, Percy C. Everett 1957-11-25 22845 Orange 4.7 miles E of Silverado 1341 Comment
  RSA550813  Mimulus clevelandii David M. Thompson 1992-7-5 s.n. Orange 3.9 mi N and W of Hwy 74 along USFS Road 3S04 (the N Divide Road). 1006 Comment
  RSA716770  Mimulus clevelandii Fred M. Roberts, Michelle Balk, Robert Allen, Carol A. Roberts 2004-7-18 6075 Orange Santa Ana Mtns.: Upper Trabuco Cyn. along Trabuco Cyn. Trail, 1.3km NE Los Pinos Pk. and c.a. 0.25km by trail from Main Divide Truck Trail. 1245 Comment
  POM193491  Mimulus floribundus Helen E. Sweet 1928-08 s.n. Orange Santiago Canyon. Comment
  JEPS10479  Mimulus guttatus Lawrence M. Booth 1932-6-7 1167 Orange Newport Bay Comment
  UCSB47989  Mimulus guttatus 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
  IRVC28636  Mimulus pilosus Mark A. Elvin 2005-9-2 4491 Orange Santa Ana Mtns: along San Juan Creek, ca. 1.0km upstream from San Juan Hot Springs; off Ortega Hwy (74), near bridge. Peninsular Ranges 259 Comment
  POM49740  Mimulus pilosus Helen D. Geis 1902-1 514 Orange [Unspecified] Comment
  RSA715695  Mimulus pilosus Fred M. Roberts, Chris M. Barnhill 2005-9-27 6277 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 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
  UCSB59358  Minuartia douglasii Roberts, Fred 1987-5-9 Orange Santa Ana Mtns.: San Juan Trail; above Chiquito Basin; 2.3 km. SSE Los Pinos Peak; UTM 372290mN, 457250mE 952 Comment
  RSA732070  Mirabilis laevis A. C. Sanders, Fred M. Roberts 2008-3-25 34556 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA751254  Mirabilis laevis A. C. Sanders, Fred M. Roberts 2008-7-16 35870 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon. 358 Comment
  RSA0126621  Mirabilis laevis var. crassifolia Fred M. Roberts 2012-4-24 7501 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
  JEPS61343  Mirabilis laevis var. crassifolia Alice King 1908-4-18 Orange near Santa Ana; ; Near Santa Ana Comment
  UC1136598  Mirabilis laevis var. crassifolia H. E. Norton 1931-3-28 49 Orange 3 miles SW of Corona 457 Comment
  CAS-BOT-BC385102  Mirabilis linearis var. decipiens Grace Cole Fleischman 1955-9-6 s.n. Orange Vicinty of Anaheim [communicated by Grace Cole Fleischman, per label] Comment
  UCD86056  Monanthochloe littoralis L. M. Booth 1932-7-27 1318 Orange Newport Bay. 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
  SD237499  Monardella hypoleuca subsp. intermedia A. C. Sanders, Fred M. Roberts 2008-7-16 35845 Orange Peninsular Range; Santa Ana Mountains: Lomas de Santiago, Dripping Spring off Limestone Canyon, c. 7.5 mi ESE of Tustin (El Toro 7.5'Q) 391 Comment
  UC718448  Monardella hypoleuca subsp. intermedia Carl B. Wolf 1936-6-22 8003 Orange 3 mi above F.S. gate Santiago Canyon (along truck trail to Modjeska Pk.); Santa Ana Mts 762 Comment
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Jan 7 2018
  UCD19273  Monardella hypoleuca subsp. lanata John F. Sorenson 1989-7-1 s.n. Orange Santa Ana Mtns, ridge on north side of Modjeska Peak. Comment
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Jan 7 2018
  IRVC28919  Monardella lanceolata Fred M. Roberts, Carol Roberts 1988-6-10 4092 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Pk., W slope, 1.1km SW of summit. Peninsular Ranges 1524 Comment
  RSA16484  Monardella macrantha subsp. hallii Percy C. Everett 1935-6-19 s.n. Orange Main Divide Motorway 1.5 miles below summit of Santiago Peak, E slope. 1311 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
  RSA0010789  Morus Fred M. Roberts, Michelle Balk, Robert Allen, Chris Barnhill 2004-6-19 6060 Orange Santa Ana Mtns.: Holy Jim Cyn.: Holy Jim Trail, 3.3km SE summit of Santiago Peak. 628 Comment
  CAS-BOT-BC275291  Muhlenbergia microsperma J. C. Nevin 1904-1-1 s.n. Orange Newport Bluff Comment
  POM156458  Muhlenbergia microsperma Le Roy Abrams 1903-4-18 3260 Orange Trabuco arroyo, near San Juan Capistrano. Comment
  RSA542548  Muhlenbergia microsperma Fred M. Roberts 1988-2-26 3809 Orange Dana Point above Dana Point marina, south of Santa Clara Ave., 0.6 km NE Marine Institute 27 Comment
  RSA59  Muhlenbergia microsperma J. T. Howell 1927-6-5 37 Orange Rancho Santa Ana, near east boundary. 152 Comment
  SD27973  Muhlenbergia microsperma Carl B. Wolf 1932-3-8 2689 Orange 1/2 mi. No. of Corona Del Mar. Borders of Newport Bay, low bluffs 7 Comment
  UCSB48199  Muhlenbergia rigens Roberts, Fred 1981-6-26 Orange Viejo Cyn., 0.4 km N Calif. Rte. 74; 2.7 km ENE San Juan Guard Station; Santa Ana Mts. 311 Comment
  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
  UCR102000  Myoporum laetum B. G. Pitzer 1997-3-25 3034 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, on bluffs immediately above beach, along trail that winds around restoration area and down to beach. 30 Comment
  OBI1297  Myriopteris newberryi Ilk 1963-9-17 1095 Orange Laguna Canyon, Laguna Canyon, rock outcrops north of road, ca. 1/2 mile north of El Toro Rd. turnoff; 500 Comment
  CAS-BOT-BC456169  Najas guadalupensis Street; Williams 1919-5-4 2688 Orange Laguna Beach Region. Laguna Lakes Comment
  POM156462  Nassella cernua Le Roy Abrams 1903-4-18 3268 Orange Capistrano Comment
  CAS-BOT-BC259969  Nassella lepida John Thomas Howell 1927-6-9 2464 Orange N side of Santa Ana Canon [Santa Ana Canyon] 152 Comment
  RSA678733  Nassella lepida Fred M. Roberts, Robert Allen, Carol Roberts 2003-5-11 5862 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
  RSA734340  Nassella lepida A. C. Sanders, Linda Farley, Fred M. Roberts, David E. Bramlet 2008-4-1 34635 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  UCD87925  Nassella lepida F. M. Reed 1928-7-10 6579 Orange sidewalk in Laguna Beach, El Toro. 1524 Comment
  UCSB52916  Nassella lepida Roberts, Fred 1983-3-10 Orange Dana Point Headlands; south of Scenic Drive, 0.3 km W Dana Point Harbor; 0.8 km S Richard Henry Dana School 60 Comment
  RSA602779  Nassella pulchra R. E. Riefner Jr., Tony Bomkamp, R. Ramirez 1997-6-11 97 -181 Orange Black Star Canyon, Hidden Ranch. 610 Comment
  UC1155964  Nassella pulchra C. L. Hitchcock 1966-3-15 24142 Orange hills 1 1/2 mi e Brea; Stearns Lease Comment
  POM201760  Nemacaulis denudata var. denudata L. M. Booth 1932-5-27 1132 Orange Newport 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
  RSA751161  Nemacladus ramosissimus D. E. Bramlet 2008-4-14 4177 Orange Ridgeline in Hicks Cyn. 99m NW of the haul Rd. & 331m N of the Asphalt plant 211 Comment
  RSA721840  Nemophila aurita Unspecified s.n. Orange Orange County park. Comment
  RSA2081  Nemophila menziesii Carl B. Wolf 1931-3-6 1848 Orange Trabuco Canyon, 1 mile below Trabuco Camp Grounds, west slope of Snata ana Mts. 610 Comment
  JEPS1893  Nemophila menziesii var. integrifolia Alice King April, 1908 Orange Santa Ana Mountains Comment
  CAS-BOT-BC478170  Nephrolepis cordifolia R. E. Jr. Riefner 2014-6-14 14 -171 Orange City of Newport Beach, Cliff Drive Park, along Cliff Drive, near Beacon Street 44 Comment
  IRVC148  Nephrolepis cordifolia Lorraine Aldis 1965-3-30 HS 542 Orange Costa Mesa; Senate Street. Southern Coastal Comment
  IRVC147  Nephrolepis cordifolia Polly Brecht 1965-5-7 HS 541 Orange Newport Beach; Cherry Tree Lane. Southern Coastal Comment
  IRVC157  Nephrolepis exaltata var. bostoniensis Randy Acevedo 1965-5-5 HS 533 Orange Newport Beach; East Bluff. Southern Coastal Comment
  IRVC158  Nephrolepis exaltata var. bostoniensis Linda Stilgenbauer 1965-4-20 HS 534 Orange Corona del Mar; 339 Milford Drive. Southern Coastal Comment
  UCR267213  Nicotiana clevelandii Fred M. Roberts, Lee Ann Caranza 2009-4-7 7140 Orange South Coastal Region, DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor 60 Comment
  CAS-BOT-BC231674  Nicotiana glauca C. L. Hitchcock 1966-3-15 24144 Orange Stearns Lease, 1 1/2 miles e. of Brea Comment
  JEPS12219  Nicotiana glauca L. M. Booth 1933-10-18 Orange Newport Comment
  UCR191236  Nicotiana quadrivalvis A. C. Sanders, Fred M. Roberts 2008-4-22 34986 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
  UCR191318  Nicotiana quadrivalvis A. C. Sanders, Fred M. Roberts 2008-4-8 34743 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR229211  Nicotiana quadrivalvis Dick Newell, Peter Wetzel 2011-6-28 199 Orange South Coast, San Joaquin Hills, Willow Canyon, Laguna Coastal Wilderness Park 89 Comment
  JEPS59841  Nitrophila occidentalis Lawrence M. Booth 1932-6-7 1157 Orange Newport Bay Comment
  POM202039  Nitrophila occidentalis L. M. Booth 1932-6-7 1157 Orange Newport Lagoon. Comment
  POM14399  Nolina cismontana Philip A. Munz, Johnston 1922-5-18 5315 Orange Santa Ana River Canyon, 3 miles south of Orange Co. line Comment
  RSA643664  Nolina cismontana R. E. Riefner 2000-3-19 20 -137 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N and parallel to Black Star Cy. Road. 396 Comment
  UC1728555  Nolina cismontana James C. Dice with T. Oberbauer 1986-5-3 650 Orange 0.2 km w Trabuco Canyon; Santa Ana Mtns 365 Comment
  UCR152711  Nolina cismontana James C. Dice 1985-5-23 593 Orange Santa Ana Mtns, Upper Borrego Canyon along Santiago Canyon Rd., 1.8 km south of Modjeska Canyon Rd 440 Comment
  RSA734215  Nolina parryi Keith E. Hoffmaster 1936-5-3 725 Orange Live Oak Canyon, Santa Ana Mts Comment
  SD247531  Nolina parryi R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49684 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 456 Comment
  UC454579  Oenothera elata subsp. hirsutissima I. J. Condit 1908-7-20 Orange Los Alamitos Comment
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Nov 20 2010
  UCR239883  Oenothera laciniata 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
  IRVC2711  Oenothera speciosa Bonnie Simpson 1965-4-2 HS 387 Orange Santa Ana Mtns: Silverado, Silverado Cyn. Peninsular Ranges Comment
  UCR239649  Oenothera speciosa Fred M. Roberts 2012-5-9 7550 Orange Santa Ana Mountains, Lake Forest, near Serrano Creek utility road, 0.3 m south-southwest of intersection of Commercentre and Dimension Drives 206 Comment
  JEPS25886  Oligomeris linifolia L. M. Booth 1932-5-24 1097 Orange Newport Bay Comment
  POM202038  Oligomeris linifolia L. M. Booth 1932-5-24 s.n. Orange West Side of Newport Lagoon. Comment
  RSA0013580  Oligomeris linifolia D. E. Bramlet 2008-5-28 4284 Orange Bee Cyn., Bowerman landfill site, 468m S Bee Cyn access road and 434m W of the active landfill. Comment
  OBI37768  Opuntia X occidentalis D. L. Walkington, D. J. Pinkava, G. Smith and M. G. McLeod, M. G. McLeod 1971-5-9 MGM 443 (=DLW316) Orange El Modena Comment
  RSA743468  Opuntia X vaseyi Fred M. Roberts 2008-10-27 7127 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  POM285259A  Opuntia littoralis Lyman Benson 1955-10-17 285259 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  CAS-BOT-BC56866  Opuntia oricola B. D. Stark 1933-1-21 4520 Orange Field redacted by CAS, contact the data manager for more information 60 Comment
  RSA0059155  Orobanche fasciculata W. Pequegnat 1940-4-13 s.n. Orange Trabuco Peak, Santa Ana Mts. 1311 Comment
  POM156459  Orthocarpus densiflorus var. gracilis L. R. Abrams 1903-4-18 3266 Orange Near San Juan Capistrano Comment
  RSA407957  Orthocarpus purpurascens M. B. Dunkle 1935-2-10 4337 Orange Laguna Creek; Coastal Southern California. 61 Comment
  RSA184120  Oryza sativa I. L. Wiggins 1965-11-6 20335 Orange Drainage gutter near railway right of way, along west side of Atwood Comment
  CAS-BOT-BC355774  Osmadenia tenella Helen D. Geis 1902-1-1 535 Orange Santiago Cr. Comment
  RSA700250  Osmadenia tenella Fred M. Roberts 2003-5-1 5676 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.5km SSW Gato Gate and 0.1km west of Cristianitos Rd. 99 Comment
  IRVC14740  Osmorhiza brachypoda A. S. Boughey 1965-3-16 72 Orange Silverado Canyon. Santa Ana Mountains Comment
  IRVC15627  Osmorhiza brachypoda J. W. Johnson 1977-5-28 Orange Santiago Canyon, Fleming Property at E end of Modjeska; shaded bank of canyon side below chaparral. Santa Ana Mountains Comment
  SD255070  Osmorhiza brachypoda R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49790 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA518448  Oxalis albicans subsp. californica C. W. Tilforth, Dorothy Tilforth 1977-3-6 1258 Orange Small canyon west of Gypsum Canyon, south side of Santa Ana River, Santa Ana Canyon 152 Comment
  SEINET946136  Oxalis californica Robert Barr 1967-1 67190 Orange Along Santiago Canyon Road near Silveraldo Road; Santa Ana Montains. 259 Comment
  SEINET3347204 Image available Oxalis cernua J. R. Glen 1957-5-3 Orange .5 miles from the San Bernardino County line. 3 miles east of Olinda along Carbon Canyon road. 201 Comment
  UCSB41775  Oxalis pes-caprae Johnson, Chris 1970-3-20 Orange From planters along Science Bldg at Cal State Fullerton Comment
  RSA64895  Oxytheca trilobata F. W. Peirson 1923-9-7 4041 Orange Santiago Peak 1524 Comment
  RSA732237  Paeonia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35048 Orange Lomas de Santiago, slopes of south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado. 457 Comment
  RSA698740  Paeonia californica Mary Oliver s.n. Orange Santa Ana canyon. Comment
  RSA644978  Panicum acuminatum var. acuminatum R. E. Riefner 2000-2-19 20 -117 Orange Santa Ana Mtns. NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek and immediately N. of major stream fork. 305 Comment
  CDA2117  Panicum coloratum R. E. Riefner Jr. 2004-9-3 04 -425 Orange City of Los Alamitos, Oak Middle School, vicinity of Oak Street at Catalina Street. Comment
  RSA445555  Papaver californicum Gale Sphon 1959-5-2 323 Orange Between Upper and Lower San Juan Camps, Cleveland National Forest Comment
  RSA594821  Papaver californicum Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4915 Orange Santa Ana Mountains: San Juan Canyon, CA route 74, Lower San Juan Picnic Ground. 354 Comment
  RSA785381  Papaver glaucum John Murphy 1938-6-6 s.n. Orange Birch Park Comment
  UCR179758  Parapholis incurva R. E. Riefner Jr. 2005-7-9 05- 547 Orange South Coast, Huntington Beach, vicinity of Cynthia Dr. and Lavonne Lane along the Santa Ana River 7 Comment
  RSA699977  Parkinsonia aculeata Anonymous 1933-10-13 s.n. Orange Santa Ana Comment
  RSA696379  Paspalum distichum Keith E. Hoffmaster 1933-10-29 s.n. Orange Near Tustin 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
  UC2061654  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. Comment
  SEINET6655640  Paspalum urvillei R. E. Riefner Jr. 2005-11-4 05 -742 Orange City of Lake Forest, Alton Pkwy at Bertea Rd.; 0 123 Comment
  RSA724061  Paspalum urvillei R. E. Riefner 2005-11-4 5 -742 Orange City of Lake Forest, Alton Pkwy. at Bertea Rd. 123 Comment
  RSA450851  Pectocarya linearis subsp. ferocula Gordon Marsh 1978-3-17 s.n. Orange U.C. Irvine Ecological Preserve. 85 Comment
  RSA450843  Pectocarya linearis subsp. ferocula Fred M. Roberts 1983-3-16 929 Orange Laguna Beach, Sycamore Hills, central ridge, 1.5km NNE jct E1 Toro and Laguna Canyon road, 5.5km ESE Signal Peak. 160 Comment
  RSA649  Pectocarya penicillata J. T. Howell 1928-2-26 861 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR159812  Pelargonium grossularioides Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal, UCI Arboretum 15 Comment
  IRVC20322  Pellaea andromedifolia var. andromedifolia Fred M. Roberts 1983-1-7 850 Orange Upper Park Canyon, west flank of Temple Hill, 1.7km NE Thurstn School; 1.7km SE BM 104, Laguna Beach 230 Comment
  RSA301972  Pellaea andromedifolia var. andromedifolia J. R. Shevock 1970-12-20 574 Orange Silverado Canyon 762 Comment
  CAS-BOT-BC71393  Pellaea mucronata Carl B. Wolf 1933-8-24 5396 Orange Santa Ana Mts., summit of Santiago Pk. 1731 Comment
  RSA739324  Pellaea mucronata Keith E. Hoffmaster 1934-7-13 33 ` Orange Santa Ana Mountains Comment
  UCSB52421  Pellaea mucronata Roberts, Fred; Meyers, J. 1982-11-7 Orange Santa Ana Mtns.; Lion Canyon, Chiquito Basin Trail, 3.6 km. S Blue Jay Campground; 2.4 km. NNE lower San Juan Campground 800 Comment
  UCR113460  Pellaea mucronata subsp. mucronata R. E. Riefner Jr. 2000-8-8 20- 719 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, NE property, E slope of upper Fremont Canyon, south of Donaldson Ranch and south of powerline/ National Forest boundary 454 Comment
  IRVC20364  Pellaea mucronata var. mucronata Fred M. Roberts, D. A. Roberts 1983-3-22 935 Orange San Juan Canyon, above Hwy 74, 2.7km ENE San Juan Guard Sta.; 3.6km SSW Sugar Loaf Pk., Santa Ana Mountains 407 Comment
  POM17853  Pellaea mucronata var. mucronata P. A. Munz 1923-6-14 7065 Orange Glen Ivy Trail to Santiago Peak, Santa Ana Mountains 1127 Comment
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Apr 1 2013
  RSA301973  Pellaea mucronata var. mucronata J. R. Shevock 1970-12-20 571 Orange Silverado Canyon 579 Comment
  CDA2157  Pennisetum clandestinum Margaret Bellue, Johnson Oct 1944 Orange Yorba Linda. 0 Comment
  UCR215288  Pennisetum setaceum Fred M. Roberts, D. E. Bramlet 2008-5-13 6957 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  UCSB48125  Pennisetum setaceum Roberts, Fred 1981-4-11 Orange Highway 74: 5.2 km. E San Juan Capistrano, near San Juan Creek crossing 52 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
  UC1063390  Penstemon heterophyllus A. Lewis May 1934 432 Orange Los Pinos Peak Cleveland National Forest, Elsinore Quadrangle, Los Pinos Pk Comment
  UCR228769  Penstemon heterophyllus Dick Newell, Don Millar 2011-7-19 214 Orange Peninsular Range; Santa Ana Mtns., foothills above Black Star Canyon Rd. (SCE access road), 3.15 mi. ENE (83 deg. ) of Irvine Lake dam 494 Comment
  RSA759276  Penstemon heterophyllus Robert 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
  RSA761797  Penstemon heterophyllus Robert Allen 2003-6-22 12310 Orange West-facing flank of Santiago Peak, near the saddle between Santiago and Modjeska Peaks, along North Main Divid Road. 1523 Comment
  RSA797600  Penstemon heterophyllus subsp. australis Robert F. Thorne 1977-11-21 49997 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  SEINET10334604  Penstemon heterophyllus subsp. australis Czarnecki 1966-5-25 113 Orange Old botanical gardens at the Ranco Santa Ana Comment
  RSA0054894  Penstemon spectabilis Keith E. Hoffmaster 1934-4-8 134 Orange Santa Ana mts. Comment
  POM156456  Pentachaeta aurea L. R. Abrams 1903-4-17 3259 Orange Near El Toro Comment
  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
  RSA741730  Pentachaeta aurea subsp. allenii R. E. Riefner 2008-6-25 08 -169 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Lakeview SCE Road. 480 Comment
  HSC1086  Pentagramma triangularis J. W. Johnson 1961-3-29 Orange Newport Beach, on S side of upper Newport Bay Comment
  RSA0060347  Pentagramma triangularis Gary D. Wallace, G. Cromwell 1966-4-16 459 Orange W edge of Cleveland Nat. For. about 5 mi. E of San Juan Capistrano, in the Santa Ana Mountains, in Hot Springs Canyon. Comment
  RSA687368  Pentagramma triangularis subsp. triangularis Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  SFV16195  Peritoma arborea R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 39 Orange Newport Beach, Upper Newport Bay on Back Bay Drive about 0.5 miles north of Shellmaker Island. Mesic roadside at base of coastal bluff adjacent to semi-disturbed coastal sage scrub area. Comment
  SEINET235756  Persea borbonia R. W. Scora 1996-9-2 5087 Orange CULTIVATED ; University of California south Coast Field Station near Irvine. Field 3 Row 42 tree 9. Comment
  CAS-BOT-BC413482  Persicaria amphibia Carl B. Wolf 1932-7-7 3835 Orange Bryant Ranch, Bixby Ave., 100 ft. west of Hansen Road (100 ft. W. of S.E. corner of N.E. 40 of N.E. 160 of Sect. 34 T4S R11W) Comment
  SBBG61477  Persicaria amphibia J. Ewan 1931-7-31 Orange Westfall near Huntington Beach Comment
  POM4185  Petunia parviflora Philip A. Munz 1918-5-4 2203 Orange Laguna Beach. Comment
  RSA4186  Petunia parviflora L. R. Abrams 1901-6-13 1775 Orange Laguna Comment
  RSA734892  Phacelia brachyloba A. C. Sanders, Mitch Provance 2008-5-20 35423 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile blow Modjeska Canyon confluence. 345 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
  POM49687  Phacelia cicutaria var. hispida L. R. Abrams 1901-06 1820 Orange Santiago Peak trail. Comment
  POM49691  Phacelia cicutaria var. hispida L. R. Abrams 1902-1 512 Orange Santiago Creek Canyon. Comment
  RSA497761  Phacelia cicutaria var. hispida M. B. Dunkle 1933-5-30 3577 Orange Santa Ana Canyon. Comment
  RSA734285  Phacelia cicutaria var. hispida A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34627 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 280 Comment
  RSA749315  Phacelia cicutaria var. hispida Fred M. Roberts, Linda Farley 2008-3-28 6820 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber s Peak, Irvine Land Conservancy. 437 Comment
  RSA759253  Phacelia davidsonii Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, N face, along access road up Modjeska Peak, outside the sharp bend in the extreme end of the road. Survey Point #47. 1514 Comment
  POM49692  Phacelia distans L. R. Abrams 1901-06 1824 Orange Santiago Peak Trail. 915 Comment
  RSA201438  Phacelia distans J. T. Howell 1928-1-15 3277 Orange Near the Ranch House. Rancho Santa Ana. 152 Comment
  RSA650516  Phacelia distans Shlomo Gat 1959-03 20 Orange Santa Ana Canyon. Comment
  RSA698722  Phacelia distans R. H. McArthur 1924-3-25 s.n. Orange Barranca Bridge - Laguna Road Comment
  RSA697786  Phacelia hispida Kenneth Beard s.n. Orange Silverado Canyon. Comment
  JEPS1176  Phacelia minor Mary Alice King March 1907 Orange Anaheim plains Comment
  RSA542474  Phacelia minor Fred M. Roberts 1988-3-15 3851 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark. 149 Comment
  RSA697789  Phacelia minor L. C. Hull 1934-4-24 s.n. Orange Trabuco Canyon. Comment
  SBBG40448  Phacelia minor J. Ingram 1960-3-29 268 Orange across from O'Neill Park, Trabuco Cyn Comment
  UC1377699  Phacelia minor John Ingram 1960-3-29 268 Orange roadsides across from O'Neill Park; Trabuco Canyon Comment
  UCR193499  Phacelia minor A. C. Sanders, T. B. Salvato 2008-5-13 35363 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
  RSA603111  Phacelia minor R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains. Cleveland National Forest. Comment
  RSA428155  Phacelia parryi M. B. Dunkle 1938-3-26 5231 Orange Aliso Canyon. 6 Comment
  RSA788910  Phacelia parryi Fred M. Roberts 2008-6-26 7062 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
  UCR193841  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-7-16 35861 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  UCR263590  Phacelia parryi Ed Kentner 2012-4-5 126 Orange Lomas de Santiago, Whiting Ranch Wilderness Park 330 Comment
  HSC13728  Phacelia parryi J. J. Wagoner 1965-4-11 16 Orange 5 mi. N of Modjeska Canyon near Irvine Lake off of Irvine Rd. 152 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
  CAS-BOT-BC154389  Phacelia ramosissima var. latifolia John Thomas Howell 1927-7-16 2780 Orange hill on north side of Santa Ana [Canon] Canyon 152 Comment
  RSA428279B  Phacelia suaveolens subsp. keckii Albert J. Perkins 1914-6-14 s.n. Orange Santiago Peak. Comment
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Jul 21 2018
  RSA759206  Phacelia suaveolens subsp. keckii Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, S face, midway down a steep fire break cut from the summit down to the access road. Survey point #60. 1663 Comment
  IRVC27530  Phalaris canariensis Mark A. Elvin 2004-5-2 3422 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  JEPS45890  Phalaris minor Lawrence M. Booth 1932-5-19 1076 Orange Newport Bay Comment
  RSA0011626  Phalaris minor Rankin s.n. Orange Costa Mesa. Comment
  RSA599635  Phalaris paradoxa Fred M. Roberts, Nigel Hancock 1995-5-25 4950 Orange Costa Mesa: Fairview Park, just west of end of Canyon Drive, 0.1 km W Canyon School 24 Comment
  SEINET10876692  Philodendron Thomas B. Croat 2003-4-5 Croat 87598 Orange Cultivated plants from Rick M. Cirino, Cosa Mesa, California. Originally from Brazil? Comment
  RSA459265  Pholistoma auritum M. B. Dunkle 1935-3-3 4347 Orange San Juan Canyon. 457 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
  UCR193776  Phoradendron macrophyllum A. C. Sanders, Fred M. Roberts 2008-7-3 35699 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  RSA751289  Phoradendron villosum A. C. Sanders, Fred M. Roberts 2008-7-3 35673 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  POM48015  Phyla lanceolata I. M. Johnston 1924-8-29 s.n. Orange 1 mi. N of Los Alamitos. Comment
  RSA0061169  Phyla nodiflora Robt. Allen, Trish Smith, Mike Kahle 2006-10-27 s.n. Orange Santa Ana Mountains region: Foothills along Santiago Creek, north side of Irvine Regional Park. 174 Comment
  CAS-BOT-BC452026  Phyllospadix torreyi S. B. Parish; W. F. Parish 1882-10-1 1609 Orange Near Port Bay Comment
  RSA384023  Phyllospadix torreyi Anstruther Davidson 1910-6-28 2493 Orange Balboa Beach. Comment
  RSA684000  Phyllospadix torreyi N. C. Cooper 1942-11-8 2019 Orange Laguna Beach. Comment
  RSA684036  Phyllospadix torreyi E. Yale Dawson 1958-11-10 19789 Orange First rocky spit N of Dana Point. Station no 22. 270-300 ft from shore base point. Comment
  CAS-BOT-BC452025  Phyllospadix torreyi I. M. Johnston 1915-9-3 s.n. Orange Laguna Beach 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
  RSA472042  Picris echioides James Henrickson 1970-7-25 5037 Orange 2.5 miles NE of Huntington beach, 1 mile SE of Warner Ave. on sandy slope of E. Pacific Coast Hwy. at border of Bolsa Chica Salt Marsh. 0 Comment
  RSA799946  Pilularia americana Justin M. Wood 2011-4-12 3658 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA175269  Pinus attenuata Robert F. Thorne 1963-7-26 32824 Orange Trabuco District, Santa Ana Mts., Cleveland National Forest. 1159 Comment
  SEINET10879506  Pinus attenuata Andrew Townesmith, Karen M. Meyer; Tracy Scott 2007-3-11 Townesmith 677 Orange Cleveland National Forest. Off Long Canyon Road (Forest Service road 6S05). Near entrance to Falcon Group Camp. 1000 Comment
  UCSB41932  Pinus coulteri Ramirez, Richard 1971-3-29 Orange About 8 mi. inland on Saddleback Canyon Rd., from Tucker Wildlife Sanctuary Comment
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May 8 2015
  CDA23161  Pinus halepensis Mark A. Elvin, D. G. Kelch 2006-12-9 5318 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  IRVC29792  Pinus halepensis Mark A. Elvin, Dean Kelch 2006-12-9 5318 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  RSA749997  Pinus sabiniana A. C. Sanders 2008-7-3 35716 Orange Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  UCR132891  Piperia cooperi Adrian Wolf 2000-4-14 446 Orange Santa Ana Mtns., North Ranch Policy Plan Area, 0.51 km SSE of Black Star Canyon Mine, North Baker Canyon Road 396 Comment
  RSA599183  Piptatherum miliaceum Scott D. White 1997-3-28 4826 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  UCSB48208  Piptatherum miliaceum Roberts, Fred 1981-7-8 Orange Rancho Mission Viejo; Calif. Rte. 74, 9.2 km. ENE San Juan Capistrano 100 Comment
  POM202524  Piptatherum miliaceum L. M. Booth 1932-6-28 1211 Orange Balboa Island, Newport Beach Comment
  SBBG15548  Plagiobothrys D. E. Breedlove 1962-3-9 1797 Orange St Hwy 74, 4.4 mi E of San Juan Capistrano 112 Comment
  RSA733873  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-4-8 34742 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  POM155843  Plagiobothrys collinus var. californicus L. R. Abrams 1903-4-15 3315 a Orange Buena Park. Comment
  RSA682599  Plagiobothrys collinus var. californicus Scott D. White, Amanda Duchardt 2003-3-27 8863 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA450855  Plagiobothrys collinus var. gracilis Gordon Marsh 1978-3-17 s.n. Orange U.C. Irvine Ecological Preserve. 85 Comment
  RSA542654  Plagiobothrys nothofulvus Fred M. Roberts 1988-4-10 3903 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  RSA680531  Plagiobothrys nothofulvus Scott D. White 2003-3-21 8805 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA666092  Planodes virginica Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5430 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. 226 Comment
  RSA678750  Plantago coronopus Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1121 -a Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  POM8784  Plantago erecta P. A. Munz, R. D. Harwood 1920-4-24 3753 Orange Santa Ana Mts, Sierra [Freemont] Canyon 366 Comment
  SD142765  Plantago indica Marsha Hanson 1998-5-22 Orange Huntington Beach, Bolsa Chica Ecological Reserve, west side of lagoon, path by highway Comment
  UC536902  Plantago lanceolata Lawrence M. Booth 1932-7-18 1266 Orange Costa Mesa Newport Bay Comment
  RSA749680  Plantago major A. C. Sanders, Fred M. Roberts 2008-7-16 35839 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin. 391 Comment
  UC536911  Plantago major Lawrence M. Booth 1932-6-28 1219 Orange Bolsas Marsh Comment
  POM201757  Plantago major L. M. Booth 1932-6-28 1219 Orange Bolsas Marsh. Comment
  RSA764  Plantago major J. T. Howell 1927-7-18 433 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  POM47661  Plantago ovata var. insularis F. W. Peirson 1924-5-31 4668 Orange 5 miles southeast of Laguna Beach. Comment
  RSA703087  Platanus racemosa Fred M. Roberts, Art Davenport 2003-9-11 6007 Orange Rancho Mission Viejo: Donna O'Neil Land Conservancy, tributary west of Cristianitos Cyn., 1.52 km NNW Sycamore Gate and 250 m W of Cristianitos Road. 152 Comment
  UCR241072  Platanus racemosa Dick Newell, Judy Booth, Robt. L. Allen 2013-4-6 324 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Rd./Silverado Cyn. Rd., 1.5 miles above Maple Springs gate 671 Comment
  RSA722429  Platystemon californicus Stephen Bruff s.n. Orange Lemon Heights. 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
  UCSB48121  Platystemon californicus Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Rancho Mission Viejo; Calif. 74; 7.2km by road E San Juan Capistrano; 1.3km NE Viejo Survey Marker 98 Comment
  CAS-BOT-BC229039  Plecostachys serpyllifolia R. E. Riefner, Jr. 2011-7-7 11 -88 Orange City of Dana Point, S of Mussel Cove, N of Salt Creek Beach Park 8 Comment
  CDA7064  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-4-28 07 -190 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Lane and Polaris Drive. Comment
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Dec 13 2012
  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
  SBBG126061  Plecostachys serpyllifolia R. E. Riefner Jr. 2004-12-30 04 -681 Orange vicinity of W St and Pacific Coast Hwy; City of Laguna Beach 4 Comment
  SD218289  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-12-23 08 381 Orange City of Laguna Beach, Mountain Rd. at Pacific Coast Highway. 21 Comment
  CDA34944  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-3-18 07 -153 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Lane and Polaris Drive. Comment
  RSA751480  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08 -308 Orange City of Laguna Beach, ocean bluff vicinity of West St. and Pacific Coast Highway. 4 Comment
  RSA765878  Plecostachys serpyllifolia R. E. Riefner Jr. 2006-7-26 06 -319 Orange City of Irvine, N side of Irvine Blvd. at SR-133 on-ramp. 64 Comment
  RSA765879  Plecostachys serpyllifolia R. E. Riefner Jr. 2005-9-9 05 -654 Orange City of Lake Forest, Aliso Creek, S side of Portola Pkwy. and W of El Toro Rd. 225 Comment
  RSA785449  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-6-25 11 -71 Orange city of Laguna Beach, Woods Cove, vicinity of Ocean Way at Pearl Street 9 Comment
  RSA790114  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-7-7 11 -73 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 5 Comment
  RSA759269  Plectritis ciliosa Robert Allen, Reginald Durant, David Taylor 2008-4-11 s.n. Orange Maple Springs Saddle. Inside region of 180 degree bend in road. On small N-facing slope. 1363 Comment
  RSA791488  Pluchea purpurascens R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49637 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UCR52602  Pluchea sericea Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 Comment
  IRVC1624  Poa annua E. McRae 1965-3-30 s.n. Orange Corna del Mar High School. Newport Beach Comment
  RSA685929  Poa annua Fred M. Roberts 2003-3-27 5628 Orange Rancho Mission Viejo:Donna O'Neill Land Conservancy, Chistianitos Canyon, along North Ride Trail, 1.37 km N Sycamore Gate, 0.36 km W Chistianitos Rd. 114 Comment
  RSA731943  Poa annua Fred M. Roberts, Sandy Leatherman 2007-11-27 6692 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  UCSB47947  Poa fendleriana Roberts, Dar 1980-5-3 Orange .6 km East by S.E. of Los Pinos Spring, on Main Divide Truck Trail 1000 Comment
  RSA699308  Poa pratensis Keith E. Hoffmaster 1927-5-30 33 Orange Santa Ana. 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
  CAS-BOT-BC236338  Poa secunda subsp. secunda R. C. Wenk; et al. 2008-3-24 719 Orange Chino Hills State Park. South Ridge Road W of San Juan Hill, going W from Equestrian Staging Area, Top of ridge 441 Comment
  CAS-BOT-BC225238  Polemoniaceae E. W. Lathrop 1974-6-27 7420 Orange Trabuco Oaks, Trabuca Canyon, Cleveland Nat'l Forest 396 Comment
  RSA562742  Polycarpon depressum Steve Boyd 1992-5-19 7438 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  RSA5379  Polygala cornuta var. fishiae B. D. Stark 1932-12-30 4460 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  RSA759150  Polygala cornuta var. fishiae 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
  RSA708537  Polygonum arenastrum Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6102 Orange Caspers Wilderness Park, Hot Springs Cyn., Hot Springs Trail, c.a. 0.16km WSW San Juan Ranger Station, north of SR 74. 212 Comment
  CLARK-A1528-919  Polygonum aviculare Patricia A. Andrews 1975-6-26 5916 Orange Capistrano Bay Beach 9 Comment
  CAS-BOT-BC414038  Polygonum aviculare subsp. aviculare Carl B. Wolf 1932-6-20 3755 Orange Rancho Santa Ana, Santa Ana Canyon situated around administration building 198 Comment
  RSA21059  Polygonum fusiforme Ramon Valverde 1938-8-4 9445 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  RSA0054922  Polygonum lapathifolium Keith E. Hoffmaster 1933-10-1 488 Orange Near Tustin. Comment
  RSA466354  Polygonum lapathifolium Malcolm M. Rice 1927-9-4 s.n. Orange San Juan Creek Bed, San Juan. Comment
  IRVC3045  Polypodium californicum A. S. Boughey 1965-3-5 51 Orange Trabuco Canyon. Santa Ana Mountains Comment
  POM188245  Polypodium californicum Marcus E. Jones 1931-3-23 20425 Orange Laguna Comment
  RSA733703  Polypodium californicum Minor Warne 1934-02 s.n. Orange Modjeska Canyon Comment
  SD48446  Polypodium californicum E. K. Balls, P. C. Everett 1957-11-25 22837 Orange Trabuco Canyon Comment
  IRVC14171  Polypodium californicum K Marrosh 1966-4-6 s.n. Orange Silverado Canyon, 3mi from pavement's end, 100ft from rd.; among rocks on stream bank. Santa Ana Mountains Comment
  IRVC21412  Polypodium californicum A. S. Boughey 1969-3-18 s.n. Orange Ortega Highway; 2mi E of San Juan Guard Station. Southern Coastal Comment
  RSA791491  Polypodium californicum R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49648 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  UCSB62516  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Santa Ana Mtns., San Juan Canyon, 2nd ravine W of entrance to lower San Juan Camp, just S of Hwy 74. 426 Comment
  RSA6043  Polypogon australis C. B. Wolf 1932-6-13 3723 Orange Fullerton, Rose Drive 53 Comment
  RSA696613  Polypogon interruptus Rankin s.n. Orange Irvine Park Comment
  IRVC8403  Polypogon monspeliensis J. B. Anderson 1966-4-17 593 Orange Newport Beach: along roadside ditch in field NE of Newport Harbor High School. southern coastal Comment
  UCR96877  Polypogon monspeliensis Scott D. White 1993-4-28 1280 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  RSA542356  Populus fremontii Fred M. Roberts Jr. 1987-5-12 3436 Orange Santa Ana River: Horseshoe Bend, 3.9km S San Juan Hill; 1.0km ENE Wier Canyon Road bridge. 104 Comment
  CLARK-A1528-4065  Populus trichocarpa Alfred R. Roos 1936-2-9 1535 Orange Santa Ana Canyon Comment
  CDA19003  Porophyllum ruderale R. Guerrero 2000-10-17 PDR 1223098 Orange next to Seal Beach Naval Weapons Station, Seal Beach. 0 Comment
  POM1018  Potamogeton nodosus D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  UC217958  Potamogeton pectinatus P. A. Munz 1922-9-2 6348 Orange Laguna Canyon 45 Comment
  JEPS47201  Potentilla anserina subsp. pacifica Lawrence M. Booth 1932-6-28 1215 Orange Bolsas Creek Comment
  UCR191453  Potentilla glandulosa A. C. Sanders, Fred M. Roberts 2008-4-8 34762 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  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
  UCD135053  Pseudognaphalium biolettii R. Townsend 1939-12-29 164 Orange Lower Telegraph Canyon. Comment
  UC468798  Pseudognaphalium californicum C. F. Millspaugh 1920-2-7 4697 Orange Pebble Beach Road Comment
  CAS-BOT-BC300530  Pseudognaphalium leucocephalum R. E. Riefner, Jr. 2011-10-19 11 -147 Orange City of San Juan Capistrano, San Juan Creek, ca. 0.2 mi W of intersection of Paseo Tirador and Calle Arroyo St. 31 Comment
  SBBG128698  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2011-10-19 11 -147 Orange City of San Juan Capistrano, San Juan Crk, ca. 0.2 mi W of intersection of Paseo Tirador and Calle Arroyo St 31 Comment
  UC484151  Pseudognaphalium leucocephalum J. T. Howell 1928-9-6 1208 Orange Rancho Santa Ana Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCSB48107  Pseudognaphalium luteoalbum Roberts, Jr., Fred 1981-4-12 Orange Santa Ana Mtns.; San Juan Canyon, Hwy. 74, 1.3 km. by road E San Juan Guard Station; 0.9 km. SE Juan Rancho Survey Marker 295 Comment
  JEPS20432  Pseudognaphalium ramosissimum L. M. Booth 1932-7-27 1321 Orange Corona del Mar Comment
  UCR274176  Pseudognaphalium ramosissimum Dick Newell, Don Millar, Judy Booth 2016-6-29 430 Orange South Coast, Newport Beach, on Back Bay Dr., 0.15 mile NNE of Shellmaker Road 5 Comment
  JEPS34056  Pseudognaphalium stramineum Alice King 1908-4-1 Orange Santiago Creek Comment
  UC537030  Pseudognaphalium stramineum Lawrence M. Booth 1932-7-19 1275 Orange Bolsas Marsh Comment
  CAS-BOT-BC357570  Pseudognaphalium stramineum Ira L. Wiggins 1966-3-18 20533 Orange Experimental Garden behind greenhouse, California State College at Fullerton Comment
  RSA587887  Psilocarphus brevissimus Fred M. Roberts 1990-5-7 4612 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  UC1952549  Psilocarphus brevissimus D. Bramlet 1995-4-29 2401 Orange Fairview Park, City of costa Mesa. The site is located some 366m n of the intersection of wilson and Canyon Dr. and 152m W of the Canyon School, on a mesa overlooking the Santa Ana River. Comment
  SD152923  Psilocarphus tenellus Steve Boyd, Tim Ross 1992-5-19 7426 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Conayon Trail from access road to Rancho Carrillo (7S06) north into Aliso Canyon. Along trail on hard-packed soil. 366 Comment
  RSA588710  Psilocarphus tenellus Fred M. Roberts 1990-5-22 4640 Orange Santa Ana Mountains; Upper Hot Springs canyon, just west of Falcon Group Camp, 1.9km ESE Los Pinos Peak. 994 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
  RSA733702  Pteridium aquilinum Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts Comment
  POM12169  Pteridium aquilinum var. pubescens P. A. Munz 1922-4-28 5041 Orange Leach Canyon, Santa Ana Mountains 670 Comment
  POM8723  Pterostegia drymarioides P. A. Munz, R. D. Harwood 1920-4-17 3802 Orange Laguna Canyon. 61 Comment
  UC635044  Pterostegia drymarioides H. L. Mason 1926-4-25 2910 Orange coast 5 mi. s. Laguna Comment
  UCSB48050  Pterostegia drymarioides Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point Headlands: north of Dana Strand Road, 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School 80 Comment
  RSA38191  Pulicaria hispanica P. A. Munz 1946-10-2 11554 Orange Santa Ana River Canyon, Rancho Santa Ana 122 Comment
  CAS-BOT-BC362142  Pulicaria paludosa R. L. Pope 1963-9-23 s.n. Orange Santa Ana Canyon about 1.5 miles above Yorba Linda Bridge Comment
  CAS-BOT-BC362145  Pulicaria paludosa Robert L. Pope 1960-7-9 s.n. Orange Roadside approximately 0.5 mile north of Yorba Linda turnoff, Santa Ana Canyon Comment
  CAS-BOT-BC362146  Pulicaria paludosa Robert L. Pope 1959-8-14 s.n. Orange Ray Miller prop., Santa Ana Canyon, e. of Fullerton Comment
  JEPS35293  Pulicaria paludosa R. L. Pope 1963-9-23 Orange approx 0.75 mi above Yorba Linda Bridge; Sanat Ana Canyon Comment
  RSA679099  Pulicaria paludosa Fred M. Roberts 2003-7-24 5964 ` Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub. 27 Comment
  RSA708450  Pulicaria paludosa Mark A. Elvin 2003-8-24 3013 Orange Southern coastal: San Jaquin Hills, Irvine, UCI, 100m N of the intersection of Shady Canyon Drive and Bonita Canyon Road. 72 Comment
  RSA734920  Pulicaria paludosa A. C. Sanders, Fred M. Roberts 2008-6-17 35463 Orange Lomas de Santiago, Loma Ridge on Hicks Canyon Haul Road, c. midway between Foothill Transportation Corridor and Santiago Cyn. Rd. 335 Comment
  UCD148359  Pulicaria paludosa T. C. Fuller 1963-10-9 11362 Orange North facing slope of the Santa Ana Canyon, 0.1 mile south of Riverside Freeway to Anaheim. Around 2 miles west of the Riverside county line in Orange County. Comment
  UCR192974  Pulicaria paludosa A. C. Sanders, Fred M. Roberts 2008-6-17 35463 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge on Hicks Canyon Haul Road, c. midway between Foothill Transportation Corridor and Santiago Cyn. Rd. 335 Comment
  UC1597259  Quercus Fred M. Roberts Jr. and Carol A. Roberts 1989-4-7 4264 Orange 0.4 km w West Moulton Peak; Aliso-Wood Canyon Regional Park, Upper Wood Canyon 104 Comment
  UCD47711  Quercus X acutidens John M. Tucker 1941-5-30 254 Orange Low shrub, in San Juan Canyon, 200 yards west of San Juan Guard Station, Highway 74, Orange County, California. Comment
  UCSB52415  Quercus X acutidens Roberts, Fred 1981-11-15 Orange Santa Ana Mtns.: San Juan Canyon, Rte. 74, 0.5km by road SW Lower San Juan Picnic Ground, 425 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
  CAS-BOT-BC86440  Quercus berberidifolia P. C. Everett; E. R. Johnson 1937-11-30 9379 Orange Santa Ana Mts., Bold Meadow at head of Claymine Canyon on slopes of Sierra Peak 762 Comment
  IRVC1350  Quercus berberidifolia A. S. Boughey 1965-3-16 67 Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  IRVC24548  Quercus berberidifolia Fred M. Roberts, R. L. Allen 1985-8-19 2133 Orange Mission Viejo: lateral to Engilish Canyon along Vista de Lago Drive; 3.4km ENE El Toro Fire Station. Southern Coastal 218 Comment
  RSA17561  Quercus berberidifolia E. R. Johnson 1936-4-10 7767 Orange Santa Ana Canyon, Rancho Santa Ana, toward the head of box canyon to the north of the pear orchard. 168 Comment
  RSA588843  Quercus berberidifolia Fred M. Roberts 1989-11-7 4454 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
  RSA663280  Quercus berberidifolia R. E. Riefner Jr. 2000-6-22 20 -572 Orange NCCP North Ranch Policy Plan Area, NE property; along National Forest boundary, at powerline. 756 Comment
  UCR132889  Quercus berberidifolia Adrian Wolf 2000-6-1 468 Orange Santa Ana Mtns., North Ranch Policy Plan Area, West Fremont Canyon 534 Comment
  UCR193768  Quercus berberidifolia A. C. Sanders, Fred M. Roberts 2008-7-3 35678 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR242756  Quercus berberidifolia Fred M. Roberts 2012-5-10 7689 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, south fork of Buck Gully, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive 183 Comment
  UCSB58643  Quercus berberidifolia Muller, Cornelius 1953-5-2 Orange Upper end of Swain Canyon, near ridge top, Santa Catalina Island Comment
  UCR145826  Quercus chrysolepis June Latting 1973-1-2 s.n. Orange Santa Ana Mountains, Silverado Canyon, 6.3 miles from Silverado Forest Station [presumably up canyon from Silverado] at 'S' curve in road 1220 Comment
  RSA550591  Quercus dumosa Fred M. Roberts, Kirkland 1989-2-22 4183 Orange San Joaquin Hills: Pelican Hill, 0.4km ESE Summit. 189 Comment
  UCSB52411  Quercus dumosa Roberts, Fred 1982-7-8 Orange LAGUNA NIGUEL: canyon near Pacific Island Dr., 1.4km ESE Aliso Peak: 1.1km NE Bench Mark 133 207 Comment
  UCSB52929  Quercus dumosa Roberts, Fred; Marsh, K. 1983-5-26 Orange Dana Point Headlands; north of Dana Strand Rd., 0.5 km. W Dana Point Harbor; 0.8 km. SSW Richard Henry Dana School 82 Comment
  IRVC21616  Quercus engelmannii Fred M. Roberts, Kelly P. Steele 1984-4-20 1345 Orange Rancho Mission Viejo: Hwy 74 near mouth of Trampas Canyon; 8.7km by road E San Juan Capistrano Southern Coastal 90 Comment
  IRVC19904  Quercus lobata Gordon A. Marsh, Karlin G. Marsh 1983-7-15 s.n. Orange San Joaquin Hills, Upper Shady Canyon. Southern Coastal Comment
  UCSB47644  Quercus wislizeni var. frutescens Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, 1.7km w. Trabuco Pk., Santa Ana Mtns. 1268 Comment
  RSA220970  Rafinesquia californica E. W. Lathrop 1966-4-18 6178 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  UCR194557  Rafinesquia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35326 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  UCR261711  Rafinesquia californica Dick Newell, Don Millar 2015-3-24 393 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
  UCR241898  Ranunculus californicus Fred M. Roberts 2012-4-24 7531 Orange Peninsular Ranges; coastal foothills, 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
  HSC92525  Raphanus raphanistrum D. Atwood 1993-3-29 17737 Orange Huntington Beach along Beach Blvd., 0.5 mi. N of the beach Comment
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Jul 14 2012
  UCR100464  Raphanus sativus B. G. Pitzer 1996-4-30 2777 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  CSUSB564  Raphanus sativus Sally Bell 1964-5-10 Orange Corona Del Mar, at the State Park Beach, growing at bottom of steps in sandy soil along with Mesembryanthemum crystallinum. Comment
  RSA685139  Rhamnus alaternus Roger Reinke 2003-2-18 s.n. Orange South Coast: Newport Back bay, Big Canyon. 30 Comment
  UC592928  Rhamnus californica subsp. californica P. C. Everett 1936-9-19 Orange Silverado Canyon, in vicinity of forest service road gate at base of road Santa Ana Mountains 762 Comment
  CAS-BOT-BC402199  Rhamnus ilicifolia R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49703 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  CAS-BOT-BC56025  Rhamnus ilicifolia P. C. Everett 1935-6-17 7138 Orange Santa Ana Mts., Coldwater Canyon, 1.2 mi. above Glen Ivy Resort 457 Comment
  CAS-BOT-BC56029  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1845 Orange Santa Ana Mts., Trabuco Canyon, 1/2 mi. above Trabuco Oaks 457 Comment
  CAS-BOT-BC56032  Rhamnus ilicifolia P. C. Everett 1935-6-17 7138 Orange Santa Ana Mts., Coldwater Canyon, 1.2 mi. above Glen Ivy Resort 457 Comment
  CAS-BOT-BC56036  Rhamnus ilicifolia C. B. Wolf 1931-3-6 1845 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope of the Santa Ana Mts. 457 Comment
  POM9123  Rhamnus ilicifolia P. A. Munz, R. D. Harwood 1920-4-24 3765 Orange Sierra [Freemont] Canyon, Santa Ana Mts. 366 Comment
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Sep 17 2011
  POM243761  Rhamnus tomentella subsp. cuspidata Percy C. Everett 1935-6-18 7217 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  UC1094403  Rhaponticum repens John W. Ingram 1953-12-1 Orange 2 mi n, on State Highway 39 Huntington Beach Comment
  CAS-BOT-BC167875  Rhus integrifolia H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  CAS-BOT-BC167876  Rhus integrifolia Carl B. Wolf 1932-3-8 2685 Orange 1/2 mi. No. of Corona Del Mar. Borders of Newport Bay 7 Comment
  CAS-BOT-BC167877  Rhus integrifolia T. B. Salvato 2010-10-27 5136 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  CAS-BOT-BC167921  Rhus integrifolia Ira L. Wiggins 1966-2-25 20474 -A Orange Firestone Boy Scout Reservation, in hills E. of Brea Comment
  IRVC15661  Rhus integrifolia A. S. Boughey, P. Pembrook 1965-7-16 1011 Orange Los Trancos Canyon, near spring, ; chaparral. San Joaquin Hills Comment
  UCR159782  Rhus integrifolia Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; along marsh road 5 Comment
  CAS-BOT-BC167929  Rhus ovata B. Pitzer; S. Hemstreet 1992-5-27 1960 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 mi. (airline) W of El Cariso Campground 762 Comment
  CAS-BOT-BC167930  Rhus ovata A. M. White 1974-6-1 1404 Orange Ca. 20 mi. E. of Santa Ana N. of Silverado Canyon Comment
  CAS-BOT-BC167933  Rhus ovata Carl B. Wolf 1941-9-21 6138 Orange Silverado Canyon, Santa Ana Mts. 731 Comment
  LA62868  Rhus ovata P. C. Everett; 1935-6-19 2462 Orange Santa Ana Mountains, Trabuco Canyon, 2 mi. above (E.) Forest Service Patrol Station 761 Comment
  RSA659984  Rhus ovata Steve Teh 1994-5-20 15 Orange Modjeska Grade rd. 3/4 mile back on fire rd. Comment
  RSA679096  Ribes amarum Fred M. Roberts 2003-6-25 5951 Orange Santa Ana Mountains: Mojeska Peak in Upper Cold Springs Cyn., north of Main divide Truck Trail, 0.4 km ESE summit. 1471 Comment
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Jan 3 2007
  RSA797918  Ribes amarum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49829 Orange Santa Ana Mountains: Trabuco Canyon, ca. 8 km east of Trabuco Oaks 860 Comment
  RSA0022442  Ribes amarum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49777 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  OBI5928  Ribes californicum Carl B. Wolf 1931-3-6 1849 Orange 1 mi below Trabuco Camp ground, Trabuco cyn, W slope of the Santa Ana mts 610 Comment
  CAS-BOT-BC93075  Ribes californicum var. hesperium Carl B. Wolf 1931-3-6 1849 Orange 1 mile below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mountains. 609 Comment
  RSA608240  Ribes indecorum Steve Boyd, Bart O Brien 1998-1-13 10074 Orange Santa Ana Mountains: north end of the range, saddle between Mabey and Fremont canyons, along Main Divide Road ( 3S04) ca. 1.0 mi N of Oak Flat. 883 Comment
  UCR240082  Ribes indecorum Dick Newell, Don Millar 2012-5-22 259 Orange Peninsular Range; Santa Ana Mtns., on Lake View Rd. above Irvine Lake at State Spur Rd. 564 Comment
  CAS-BOT-BC168944  Ribes malvaceum James R. Shevock 1978-4-26 5899 Orange Along the divide road, FS 3S04 in the vicinity of Sierra Peak, Santa Ana Mountains, Cleveland National Forest 1097 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
  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
  CAS-BOT-BC186105  Ribes roezlii var. roezlii Carl B. Wolf 1941-8-15 11154 Orange Santa Ana Mts. Summit Santiago Peak 1706 Comment
  CAS-BOT-BC186106  Ribes roezlii var. roezlii L. R. A. 1901-6-1 1833 Orange Santiago Peak Comment
  CAS-BOT-BC173741  Ribes speciosum James R. Shevock 1978-4-26 5902 Orange Along FS road 3S04 between Beeks Place and Black Star Canyon Road. Santa Ana Mountains, Cleveland National Forest 914 Comment
  RSA454955  Ribes speciosum E. Crow 1929-2-22 166 Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. Comment
  RSA788179  Ribes speciosum Doris Bowers 1966-4-3 338 Orange Black Star Canyon 274 Comment
  OBI7990  Ricinus communis Kurt R. Neisess 1975-12-20 s.n. Orange In the Fullerton Hills area Comment
  POM2748  Ricinus communis M. Harbour 1915-3-28 s.n Orange Orange. Comment
  UC192523  Ricinus communis S. B. and W. F. Parish October, 1882 1599 Orange near Anaheim Comment
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Jun 25 2012
  UCD142323  Ricinus communis B. Pitzer 1996-4-30 2779 Orange Upper Newport Bay: California Department of Fish and Game Ecological Reserve off (west of) Jamboree Road. 6 Comment
  POM2747  Ricinus communis P. A. Munz 1918-5-5 2177 Orange Laguna. Comment
  LA46159  Romneya coulteri P. C. Everett; 1936-9-19 8270 Orange Silverado Canyon, in the vincity of forest service rd gate 761 Comment
  RSA446200  Romneya coulteri F. R. Fosberg 1931-6-21 85094 Orange Lower Santiago Canyon. Comment
  SD98979  Romneya coulteri Darley Howe 1976-6-4 4904 Orange Trabuco Canyon, Santa Ana Mtns. (mak 10/07) 305 Comment
  RSA0059633  Rorippa nasturtium-aquaticum R. E. Riefner Jr. 2003-11-30 03 -483 Orange Peters Canyon Channel at Alton St., E of the Jamboree Rd. near Irvine City Hall. 22 Comment
  CDA1082  Rorippa officinalis D. G. Kelch 2006-12-9 6 .544 Orange Along Newport Back Bay Dr. in side canyon. 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
  RSA0045576  Rosa californica Minor Warne 1934-4-21 s.n. Orange Limestone Canyon by Scout Camp. Comment
  SD133065  Rosmarinus officinalis A. C. Sanders 1990-10-6 10202 Orange Newport Bay, North Star County Beach area on SW end of bay, ca. 2 km inland of Hwy. 1. Clearly spontaneous, not planted. 0 Comment
  RSA0035069  Rubus vitifolius K. Kneen 1933-4-8 s.n. Orange Pacific Palisades. Comment
  UC536918  Rumex conglomeratus Lawrence M. Booth 1932-6-9 1178 Orange 1 mi from ocean Santa Ana River Canal Comment
  CAS-BOT-BC421600  Rumex crispus Scott D. White 1997-3-26 4811 Orange Univ. of Calif. Irvine Campus: Site of proposed student recreation center, east of main campus. Existing Farm School and adjacent grasslands (horse pasture) between California Ave. and Culver Dr. 30 Comment
  UCR96898  Rumex crispus Scott D. White 1993-4-28 1285 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  SBBG128391  Rumex obtusifolius A. C. Sanders, F. M. Roberts 2008-7-7 36004 Orange Weir Cyn at powerline crossing, 1.0 mi (air) SSE of Walnut Cyn Reservoir; Santa Ana Mtns 226 Comment
  UCR250322  Rumex obtusifolius A. C. Sanders, Fred M. Roberts 2008-8-7 36004 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  POM49171  Ruppia maritima I. M. Johnston 1924-7-10 s.n. Orange Mouth of Aliso Canyon Comment
  POM187514  Salicornia bigelovii P. A. Munz 1933-10-30 12997 Orange Seal Beach. Comment
  UC1179530  Salicornia bigelovii Peter H. Raven 1958-7-5 13561 Orange just n Surfside Comment
  SD257245  Salicornia bigelovii R. E. Riefner Jr. 2003-12-6 03 502 Orange NAD 83; 11S, 0411758E, 3722979N. Costa Mesa, marsh along W side of Santa Ana River, W of 19th Street and Balboa Ave. 9 Comment
  UCD99133  Salicornia pacifica A. C. Sanders 1990-10-6 10205 Orange Newport Bay, North Star County Beach area on the SW end of the bay, 2 km inland of Hwy. 1. 1 Comment
  UCSB36208  Salicornia pacifica Ferren, Wayne 1980-8-27 Orange W side of Backbay Drive ca. 1.5 km. NE of Rt. 1, Newport Backbay, Newport Beach Comment
  RSA768501  Salicornia virginica Justin M. Wood 2009-12-1 1392 Orange Santa Ana River: marsh just upstream of Pacific Coast Highway. 0 Comment
  RSA0042767  Salix exigua Fred M. Roberts 2012-7-18 7675 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill. 37 Comment
  RSA6452  Salix exigua Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA703731  Salix exigua Fred M. Roberts, David E. Bramlet 2004-7-30 6091 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn. along Cristianitos Ck., 1.1 km SSW Gato Gate and 0.32km W Cristianitos Road. 73 Comment
  SJSU160  Salix exigua C. B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana on Bixby Ave, 1 km W of Hansen Rd near Los Alamitos 7 Comment
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Apr 11 2014
  SJSU190  Salix exigua C. B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana on Bixby Ave, 1 km W of Hansen Rd near Los Alamitos 7 Comment
  LA208645  Salix exigua var. hindsiana Robert G. Engman; sn Orange San Clemente, San Juan Capistrano wash, near sea, 0 Comment
  CAS-BOT-BC108131  Salix gooddingii L. R. Abrams 1901-6-1 1763 Orange Santa Ana River west of 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
  POM182034  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA0093589  Salix gooddingii Fred M. Roberts 2014-4-21 7855 Orange South Coast. SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin. 113 Comment
  UCR237820  Salix gooddingii Mark A. Elvin 2003-2-2 2288 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  SEINET13212664 Image available Salix gooddingii Unknown 1903-1 3256 /1227 Orange Santa Ana River near Orange, S. California. Comment
  UCSB52450  Salix gooddingii Roberts, Fred; Ferren, Wayne 1982-7-21 Orange Newport Beach: Upper Newport Back Bay, Back Bay Dr., 3.5km N jct San Joaquin Hills Dr; 3.0km W UC Irvine campus 2 Comment
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Oct 28 2018
  RSA357007  Salix laevigata Robert F. Thorne 1975-4-6 45570 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  SEINET959510  Salix laevigata A. C. Sanders 2006-1 33015 Orange Peninsular Range; Santa Ana Mtns.: San Juan Canyon, from Lower San Juan Picnic Area to xa. 1 mile downstream , parrallel to Hwy 74 and near Riverside Co. line (sitton Peak 7.5 q) 366 Comment
  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
  POM122788  Salix lasiolepis Marcus E. Jones 1926-2-20 s.n. Orange East of Laguna. Comment
  RSA221066  Salix lasiolepis E. W. Lathrop 1966-3-23 6101 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuca District. Comment
  RSA700178  Salix lasiolepis R. H. McArthur 1934-3-1 s.n. Orange Santa Ana River at 1st Street. Comment
  RSA700179  Salix lasiolepis Minor Warne 1934-2-1 s.n. Orange Santa Ana River bed Comment
  UCR26634  Salix lasiolepis E. W. Lathrop 1966-3-23 6101 Orange Santa Ana Mtns, Cleveland National Forest, Trabuco District. 4 mi. NE of Lake Irvine, Black Star Canyon Comment
  RSA0071935  Salix lasiolepis CNPS Accuracy Assessment Team 2014-4-28 898 .1 Orange Black Star Canyon. Comment
  RSA700176  Salix sessilifolia Minor Warne 1934-02 s.n. Orange Santa Ana River Comment
  UCR136676  Salpichroa origanifolia E. L. Paddock 1943-5-19 12747 Orange 1 mi east of Brea 107 Comment
  CDA23060  Salsola australis Mark A. Elvin, D. G. Kelch 2006-12-9 5295 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. 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
  CDA3181  Salsola australis R. E. Riefner Jr. 2006-11-14 06 -672 Orange City of Irvine, San Diego Creek; vicinity of Campus Avenue at University Drive. Comment
  RSA750007  Salsola tragus A. C. Sanders, Fred M. Roberts 2008-9-18 36080 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  RSA728672  Salsola tragus R. E. Riefner 2007-1-20 7 -16 Orange City of Lake Forest, along Bake Pwky. at Dimension Rd. 217 Comment
  UCLA55682  Salvia C. Epling and H. Lewis 1940-4-21 Orange 6 mi e San Juan Capistrano Comment
  RSA650627  Salvia apiana Daniel Truong 1991-5-13 28 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  UCR193060  Salvia apiana A. C. Sanders, Fred M. Roberts 2008-6-17 35502 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 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
  OBI30083  Salvia carduacea T. Pringle 1966-4-27 91 Orange RR Cyn Rd by RR Cyn Lake turnoff Comment
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Sep 6 2020
  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
  HSC14346  Salvia columbariae J. J. Wagoner 1965-4-11 24 Orange Tucker Bird Sanctuary in Modjeska Canyon 183 Comment
  RSA659990  Salvia columbariae Steve Teh 1994-4-28 11 Orange Modjeska Grade rd. 3/4 mile back on fire rd. Comment
  CAS-BOT-BC233671  Salvia leucophylla Carl B. Wolf 1943-6-8 11448 Orange Rancho Santa Ana Botanic Garden, Santa Ana River Canyon 198 Comment
  RSA651802  Salvia leucophylla Shlomo Gat 1959-5-12 34 Orange Carbon Canyon. Comment
  RSA666  Salvia leucophylla J. T. Howell 1927-6-8 60 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  CAS-BOT-BC229978  Salvia mellifera C. L. Hitchcock; C. V. Muhlick 1964-3-17 23066 Orange 8 miles e. of Yorba Linda, Santa Ana Canyon Comment
  RSA0126622  Salvia mellifera Fred M. Roberts 2012-4-24 7502 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
  RSA294797  Salvia mellifera Lyman Benson 1946-5-13 12098 Orange Corona del Mar, Pacfic Ocean drainage area 50 Comment
  RSA434146  Salvia mellifera Albert J. Perkins 1912-4-27 s.n. Orange Eastern end, Aliso Canyon. Comment
  SFV3231  Salvia mellifera A. M. Johnson 1932-4-23 4028 Orange Dry hills north of Orange. Comment
  UCD125591  Salvia mellifera P. B. Kennedy 1925-1-12 7 Orange Irvine Ranch. Comment
  UCR131880  Salvia mellifera J. Mallory, V. McCoy 1995-6-30 6454- 60 Orange Santa Ana Mountains: S-facing slope on Windy Ridge, c. 2.5 mi. south of 91 fwy. Comment
  UCR239634  Salvia mellifera Fred M. Roberts 2012-4-24 7502 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  IRVC26757  Sambucus mexicana Peter A. Bowler 2003-4-26 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; along marsh road. Southern Coastal 6 Comment
  JEPS12740  Sambucus mexicana L. M. Booth 1932-5-27 1127 Orange Newport Bay Comment
  POM213050  Sambucus mexicana C. B. Wolf 1934-9-21 6140 Orange Silverado Canyon, west slope of Santa Ana Mountains, 3/4 mi. below foot of Silverado Motorway. 549 Comment
  RSA3157  Sambucus mexicana C. B. Wolf 1931-7-24 2292 Orange lower end of Carbon Canyon. 152 Comment
  UC1125355  Sambucus mexicana A. Lewis Mar 1934 335 Orange Santa Ana Canyon Corona Quadrangle 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
  HSC3988  Sambucus nigra subsp. caerulea J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  SD181618  Sambucus nigra subsp. caerulea Julie Greene 1991-5-10 231 Orange Town of Sleepy Hollow, southernmost end of Grandview Drive, along dirt trail south to top of ridge between Carbon and Soquel Canyons, Location #4. 395 Comment
  POM186292  Samolus parviflorus Joseph A. Ewan 1932-7-29 7716 Orange Bolsa Chica near Huntington Beach. Comment
  UCR205956  Sanicula arguta Scott D. White 2003-3-21 8813 Orange Peninsular Range/Santa Ana Mtns, Foothills [above] Rancho Mission Viejo; E-facing slopes above an unnamed tributary to San Juan Creek 183 Comment
  UCR220955  Sanicula arguta Dick Newell, Don Millar 2010-3-16 012 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, above Agua Chinon at Box Canyon Rd, 2.81 miles north of Hwy 241 toll road and 2.77 miles east of 133 toll road 427 Comment
  RSA734645  Sanicula bipinnatifida A. C. Sanders, Fred M. Roberts 2008-3-25 34569 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
  RSA221030  Sanicula crassicaulis E. W. Lathrop 1966-5-1 6262 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  RSA625802  Sanicula crassicaulis Scott D. White, Noel Davis 1998-4-24 6341 Orange Santa Ana Mountains foothills. Mission Viejo Area: Aliso Creek watershed, E of El Toro Road, just N of the junction with Valley Vista Way. Large proposed subdivision called Saddleback Meadow. 305 Comment
  RSA680909  Sanicula crassicaulis Scott D. White 2003-3-21 8810 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  SD232219  Sarcocornia pacifica Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1101 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Statiion, across access road from Nature Center (Bldg 226). 3 Comment
  RSA696280  Sarcocornia perennis Keith E. Hoffmaster 1934-7-15 s.n. Orange Santa Ana Mts (Modjeska) Comment
  UCR175518  Satureja chandleri Mark A. Elvin, A. C. Sanders 2005-9-2 4499 Orange Peninsular Ranges, Santa Ana Mtns: Mouth of Lion Canyon, just upstream from Lower San Juan Campground 457 Comment
  SD175788  Schinus terebinthifolius D. G. Kelch 2006-12-9 06 572 Orange Irvine. University Drive along tidal Creek just east of I-73. 9 Comment
  UCR217463  Schinus terebinthifolius Mark A. Elvin 2003-2-23 2310 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  UC116275  Schoenoplectus acutus var. occidentalis unknown Jun 1920 Orange St. Ana Comment
  CAS-BOT-BC111475  Schoenoplectus americanus John Thomas Howell 1927-6-30 2620 Orange Mucky soil of canal bank alkaline coastal plain, 7 mi east of Long Beach. 15 Comment
  UCR193036  Schoenoplectus americanus A. C. Sanders, Fred M. Roberts 2008-6-17 35493 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  RSA0059074  Schoenoplectus americanus CNPS Accuracy Assessment Team 2014-7-9 9308 Orange Upper Newport Bay Nature Reserve. Comment
  UCR157695  Schoenoplectus californicus Adrian Wolf 1998-5-15 268 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  POM1398  Schoenoplectus maritimus C. B. Bradshaw s.n. Orange Laguna region: alkali lake. Comment
  POM1400  Schoenoplectus maritimus Phillip A. Munz 1918-5-4 2226 Orange Laguna Canyon. Comment
  POM1397  Schoenoplectus maritimus D. L. Crawford 1916-7-26 737 Orange Aliso Canyon Comment
  RSA91578  Schoenoplectus maritimus F. W. Peirson 1925-4-12 5749 Orange Laguna Canyon, Laguna Beach. 107 Comment
  RSA21060  Scirpus acutus var. occidentalis Ramon Valverde 1938-8-4 9444 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  IRVC29697  Scirpus californicus Mark A. Elvin, Barry S. Nerhus 2006-11-4 5245 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  UC537256  Scirpus maritimus Lawrence M. Booth 1932-5-30 1133 Orange Newport Lagoon Comment
  UCR191024  Scrophularia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35014 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  UCR234150  Scrophularia californica Dick Newell, Judy Booth 2012-3-30 240 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest 258 Comment
  RSA637492  Selaginella bigelovii Valerie Sosa, LeRoy Gross 1999-6-8 505 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  SEINET3864015 Image available Selaginella bigelovii J. T. Howell 1927-7-22 s.n. Orange Claymine Canyon, Santa Ana Mts.; 0 183 Comment
  UC534961  Selaginella bigelovii John Thomas Howell 1927-7-22 2834 Orange Claymine Canyon; Santa Ana Mts. 182 Comment
  OBI34978  Selaginella bigelovii John Thomas Howell 1927-7-22 2834 Orange Claymine Canyon, Santa Ana Mts., Orange County 183 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
  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
  UC566656  Senecio californicus H. L. Mason 1926-4-25 2908 Orange five mi s Laguna Comment
  UCR192460  Senecio californicus A. C. Sanders, Fred M. Roberts 2008-3-25 34528 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA450842  Senecio californicus J. B. Anderson 1966-2-26 413 Orange San Joaquin Hills: South facing slope at head of Moro Canyon along jeep road 244 Comment
  RSA763058  Senecio flaccidus var. douglasii E. W. Lathrop 1973-6-27 7429 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCR247540  Senecio flaccidus var. douglasii Dick Newell, Judy Booth 2013-9-22 339 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, North Main Divide Road, 2.2 air miles due east of Los Pinos Peak 938 Comment
  RSA937  Senecio flaccidus var. douglasii J. T. Howell 1927-6-6 43 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCR146954  Senecio linearifolius Mark A. Elvin 2003-8-24 3011 Orange Southern Coastal, San Joaquin Hills, Irvine, UCI, 100 m N of the intersection of Shady Canyon Drive and Bonita Canyon Road 72 Comment
  UCR177697  Senecio linearifolius Scott D. White 2004-7-7 10606 Orange South Coast, Laguna Niguel, along Pacific Island Drive 122 Comment
  OBI64679  Senecio linearifolius var. linearifolius Scott D. White 2004-7-7 10606 Orange South Coast: Laguna Niguel (Dana Point: T8S R8W S9 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
  SEINET4103054 Image available Senecio sylvaticus O. M. Clark 1947-1 14374 Orange Island in Crescent Bay. Comment
  RSA697120  Senecio vulgaris Kenneth Beard 1934-02 s.n. Orange Along riverbank of Santa Ana River. Comment
  CAS-BOT-BC364599  Senecio vulgaris Carl B. Wolf 1932-6-28 3766 Orange Bryant Ranch, along Western half of North boundary of 40 acre Valencia Orange Grove; Bryant Ave. & Hansen Rd. Comment
  CAS-BOT-BC364601  Senecio vulgaris Ira L. Wiggins 1966-3-4 20490 Orange Shoulder of Peralta Avenue, near junction of Newport Freeway and Riverside Highway Comment
  RSA630331  Senna didymobotrya O. F. Clarke 1994-6-17 s.n. Orange Laguna canyon Comment
  IRVC22729  Senna multiglandulosa Fred M. Roberts 1985-5-13 1792 Orange South Laguna; Mouth of Aliso Canyon, 0.6km NW Aliso Peak, 6 Comment
  CAS-BOT-BC438200  Sesuvium verrucosum Carl B. Wolf 1932-7-7 3847 Orange Bryant Ranch, Bixby Ave., field 100 ft. N. of Rd. 7/10 mi. W. of Hansen Rd; 100 ft. N. & 2/10 mi. W. of S.E. corner of N.E.40 of N.W.160 of Sect. 34. T4S R11W. 7 Comment
  RSA724101  Setaria adhaerens R. E. Riefner 2006-8-6 6 -373 Orange City of Huntington Beach, Atlanta St. at Surge Ln. 11 Comment
  IRVC21695  Setaria lutescens Fred M. Roberts 1984-8-6 1366 Orange UC Irvine, along Adobe Circle Road, 0.9km ENE campus center; 2.3km W French Hill, Irvine 30 Comment
  CAS-BOT-BC243594  Setaria parviflora Helen D. Geis 1902-1-1 560 Orange Unspecified Comment
  RSA329668  Sidalcea malviflora Gary D. Wallace 1966-4-16 480 Orange Along Hwy 101 about 10 miles north of Camp Pendleton. 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
  JEPS67287  Sidalcea neomexicana Alice King June, 1908 Orange betw Santa Ana and Newport; betw Santa Ana and Newport Comment
  RSA0040089  Sidalcea neomexicana Sandra Leatherman 2014-3-18 2014 -1 Orange Santa Ana Mountains region: South Orange County; northeast of Antonio Parkway and Sendero Way; adjacent to the Chiquita Reclamation Plant access road. 76 Comment
  CAS-BOT-BC384499  Silene antirrhina Helen D. Geis 1902-1-1 522 Orange Santiago Canon [Canyon] Comment
  POM156679  Silene antirrhina L. R. Abrams 1903-4-18 3272 Orange Trabuco arroyo, near San Juan Capistrano. Comment
  UCR191354  Silene antirrhina A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34641 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  RSA627534  Silene antirrhina Sandy Leatherman, Fred M. Roberts, B. Leatherman, Trish Smith 1998-5-23 14 Orange Black Star Canyon: Spur Road off of Black Star Canyon Road. 335 Comment
  UCR193496  Silene laciniata A. C. Sanders, T. B. Salvato 2008-5-13 35361 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
  RSA438885  Silene laciniata subsp. major M. B. Dunkle 5377 Orange San Juan Canyon Comment
  RSA708224  Silene lemmonii Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6217 Orange Main Divide Road, ridge between Silverado and Bixby Canyons, coastal slope, 0.46km (air) S Bald Peak. 1203 Comment
  RSA0061172  Silene multinervia Robt. Allen, Trish Smith, Mike Kahle 2006-6-21 s.n. Orange Santa Ana Mountains region: Upper Fremont Canyon, ridge along SE, along unpaved Lakeview Road. 638 Comment
  UCR227633  Silene verecunda subsp. platyota Robt. L. Allen 2003-6-22 12380 Orange Santa Ana Mountains, Modjeska Peak, southwestern arm, 0.6 air mi southwest of the summit 1512 Comment
  CAS-BOT-BC75238  Sisymbrium irio Ira L. Wiggins 1966-2-12 20443 Orange Orange grove on west side of State College Boulevard, opposite Electra Way, Fullerton. Comment
  UCSB48099  Sisymbrium irio Roberts, Jr., Fred 1981-4-11 Orange Ortega Hwy.; Hwy. 74, 5.2 km. E San Juan Capistrano near San Juan Creek crossing 52 Comment
  RSA697826  Sisyrinchium bellum Pomeroy 1929-3-16 s.n. Orange Orange Co. Park. 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
  UCR192085  Sisyrinchium bellum A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35299 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  HSC13908  Sisyrinchium bellum J. J. Wagoner 1965-4-11 19 Orange 4 mi. N of Modjeska Canyon near Irvine Lake along the Irvine road 152 Comment
  POM4249  Solanum americanum Philip A. Munz 1918-5-4 2176 Orange Laguna Canyon. Comment
  RSA682757  Solanum americanum Scott D. White, Amanda Duchardt 2003-3-27 8851 Orange Santa Ana Mountain Foothills: Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  JEPS12101  Solanum douglasii Alice King 1908-3-1 Orange Santa Ana Comment
  RSA221079  Solanum douglasii E. W. Lathrop 1966-5-1 6258 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  UCR224154  Solanum douglasii Fred M. Roberts 2008-5-27 7001 Orange South Coast, Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8 km west norhwest of Marine Institute, Dana Point Harbor 75 Comment
  UCR230228  Solanum douglasii Dick Newell, Don Millar 2011-3-15 081 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 219 Comment
  UCR237843  Solanum douglasii Mark A. Elvin 2003-2-2 2272 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA0020076  Solanum douglasii Keith E. Hoffmaster 1927-5-15 533 Orange Santa Ana Comment
  RSA733737  Solanum elaeagnifolium Unspecified s.n. Orange Costa Mesa. Comment
  CAS-BOT-BC156709  Solanum umbelliferum P. A. Munz; L. T. Street; Williams 1919-5-3 2650 Orange Santa Ana River [Canon] Canyon Comment
  POM6347  Solanum umbelliferum Philip A. Munz, L. T. Street 1919-5-3 2650 Orange Santa Ana River Canyon. Comment
  RSA564475  Solanum umbelliferum B. Pitzer 1992-5-21 1943 Orange Cleveland National Forest. Sate Hwy 74, 1 mi. uphill from the 2000 ft. marker, and to the left ca. 1 mi. on an old paved rd. 640 Comment
  RSA598959  Solanum umbelliferum Scott D. White 1997-3-28 4831 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  SBBG104113  Solanum umbelliferum B. Pitzer with S. Hemstreet 1992-5-21 1943 Orange St Hwy 74, 1 mi uphill from the 2000 ft marker, and to the left ca. 0.1 mi on an old paved rd 640 Comment
  UCR192098  Solanum umbelliferum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35284 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCSB18243  Solanum umbelliferum Daniel, Dick 1964-3-28 Orange Silverado Canyon Road, 5.1 miles NW from junction with Santiago Canyon Road, approximately 10 miles W of Irvine Lake, 17 miles by air E of Orange 365 Comment
  POM18090  Solidago californica P. A. Munz 1923-9-7 7747 Orange Santiago Peak, Santa Ana Mountains. 1646 Comment
  RSA220957  Solidago californica E. W. Lathrop 1966-3-23 6096 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  LA203971  Solidago velutina subsp. californica W. Pequegnat; 1937-8-11 sn Orange Santa Ana Mountains, Santiago Peak 1734 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
  CAS-BOT-BC374660  Sonchus oleraceus Ira L. Wiggins 1965-11-3 20314 Orange Orange grove just east of California State College campus, Fullerton Comment
  CAS-BOT-BC374663  Sonchus oleraceus Ira L. Wiggins 1966-5-25 20668 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton Comment
  RSA653178  Sonchus oleraceus David Barrios 1991-5-8 29 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 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
  CAS-BOT-BC235340  Sorghum halepense John Thomas Howell 1927-7-27 2859 Orange Hills on n. side of Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC235343  Sorghum halepense Le Roy Abrams 1901-6-12 1765 Orange Santa Ana Comment
  SEINET179444 Image available Sorghum halepense L. M. Booth 1932-7-18 1265 Orange Costa Mesa. Comment
  UCD33016  Sorghum halepense Beecher Crampton 1965-10-27 7582 Orange 2 miles E of Irvine, Irvine Blvd. 1 mile N of South Coast F.S. Comment
  CAS-BOT-BC235381  Spartina foliosa Peter H. Raven 1957-9-28 11379 Orange North limits of Surfside Comment
  POM122350  Spartina foliosa Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA234494  Spartina foliosa James Henrickson 1970-7-24 5024 Orange 2.5 miles NW of Huntington Beach along south channel of Inner Bolsa Bay, adj. top Pacific Coast Hwy in bolsa Chica Salt Marsh Comment
  RSA603015  Spartina foliosa L. C. Wheeler 1933-10-21 2220 Orange Near Newport Bay: 15 Comment
  UCD92994  Spartina foliosa Peter H. Raven 1957-9-28 11379 Orange north limits of Surfside. Comment
  UCR2764  Spartina foliosa F. M. Reed 1927-11-23 5676 Orange South Coast, Anaheim Landing 1 Comment
  IRVC2456  Spartium junceum K. Durica 1965-3-28 s.n. Orange Costa Mesa. Southern Coastal Comment
  RSA748820  Spartium junceum G. Gust, L. Nye 2005-3-12 565 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 400 Comment
  CLARK-A1528-2474  Spergula arvensis John C. Roos 1937-2-23 1317 Orange Laguna Hills Comment
  IRVC367  Spergula arvensis E. P. Cowper 1965-4-11 Orange [Newport] Back Bay, Bayside Dr. Newport Beach Comment
  IRVC368  Spergula arvensis D. Ibbetson 1965-4-16 Orange Newport Beach Comment
  UCSB48380  Spergula arvensis Roberts, Fred 1982-5-22 Orange Dana Point: jct. of Stone Hill Dr. & Selva Rd.; 1.0 km ESE Dana Hills High School; 1.7 km SW Marco Forster Junior High School 40 Comment
  RSA0097075  Spergularia Scott D. White 1998-3-24 6228 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). 37 Comment
  RSA0097854  Spergularia bocconi Steve Boyd, Timothy S. Ross 1992-5-19 7431 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail in Aliso Canyon. 335 Comment
  RSA0097855  Spergularia bocconi L. M. Booth 1932-5-24 1095 Orange Newport Bay, Public Golf Course. Comment
  RSA478044  Spergularia macrotheca Albert J. Perkins 1923-3-4 s.n. Orange Laguna Beach. Comment
  RSA0098429  Spergularia macrotheca var. leucantha R. E. Riefner 1996-3-28 96 -28 Orange San Clemente State Beach. Comment
  RSA0013956  Spergularia macrotheca var. macrotheca Fred M. Roberts 2008-5-7 6943 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
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Feb 27 2019
  CAS-BOT-BC390855  Spergularia marina John Thomas Howell 1927-6-30 2617 Orange 7 miles east of Long Beach 15 Comment
  CAS-BOT-BC390856  Spergularia marina L. R. Abrams 1917-6-23 6565 Orange Balboa Comment
  CAS-BOT-BC390857  Spergularia marina Frank W. Peirson 1924-5-31 4658 Orange Laguna Canon [Canyon] Comment
  CAS-BOT-BC236645  Sphenopholis obtusata Samuel B. Parish 1884-6-10 1640 Orange Banks of Santa Ana River Comment
  IRVC26736  Spiloxene scullyi Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3174 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA627751  Stachys ajugoides Scott D. White 1998-3-18 6214 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
  POM4078  Stachys rigida subsp. quercetorum P. A. Munz 1918-5-4 2213 Orange Laguna Beach Comment
  RSA542483  Stachys rigida subsp. quercetorum Fred M. Roberts, R. E. Riefner 1988-7-19 4115 Orange Santa Ana Mountains; Maple Springs Truck Trail, Upper Silverado Canyon, 1.9km N Modjeska Peak. 1128 Comment
  RSA82576  Stachys rigida subsp. quercetorum F. W. Peirson 1923-9-7 4039 Orange Santa Ana Mountains; Trail Trabuco Canyon to Santago Peak. 1220 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
  RSA681  Stachys rigida subsp. rigida J. T. Howell 1927-7-3 261 Orange Claymine Canyon near Sierra Peak. 305 Comment
  SEINET9330188  Stachys rigida var. quercetorum Unknown 2011-9-27 39913 Orange Orange Co., CA Comment
  UCR228809  Stachys rigida var. rigida Dick Newell, Don Millar 2011-7-19 209 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs 392 Comment
  UC1971224  Stebbinsoseris heterocarpa Scott D. White, Noel Davis 1998-4-24 6347 Orange MISSION VIEJO AREA: Aliso Creek watershed, east of El Toro Rd. just N of junction. w/ Valley Vista Wy. Large proposed subdivision called Saddleback Meadow. USGS 7.5' Santiago Peak quad. Comment
  CAS-BOT-BC393824  Stellaria media Ira L. Wiggins 1966-3-22 20540 Orange near end of pavement about 5 miles above Ranger Station, Cleveland National Forest Comment
  POM7319  Stenotaphrum secundatum Fred M. Roberts, Sandy Leatherman 2007-11-27 6669 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  UCR13409  Stenotaphrum secundatum William A. Hunt 1972-4-9 720409- 02 Orange South Coast, San Clemente, San Clemente Beach State Park, day use area, bluffs directly overlooking Pacific Ocean 15 Comment
  UCR193852  Stephanomeria A. C. Sanders, Fred M. Roberts 2008-7-16 35827 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  SD240903  Stephanomeria diegensis A. C. Sanders, Fred M. Roberts 2008-8-7 35995 Orange Peninsular Range: Santa Ana Mountains: lower Weir Canyon, at narrow gorge ca. 0.6 mile above mouth of canyon at Irvine Ranch gate (Orange/Blac Star Canyon 7.5'Q) 188 Comment
  UCR149387  Stephanomeria diegensis Scott D. White, Matt Carlton 2003-11-20 9878 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 37 Comment
  UCR195673  Stephanomeria diegensis A. C. Sanders, Fred M. Roberts 2008-8-7 35995 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  RSA573303  Stephanomeria diegensis Steve Boyd, Timothy S. Ross 1994-9-14 8360 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Lucas Canyon. 317 Comment
  UC1394144  Stephanomeria diegensis L. D. Gottlieb 1968-8-14 6860 Orange immediately w Lower San Juan Campground (on Route 74) 411 Comment
  JEPS36875  Stephanomeria exigua subsp. coronaria L. M. Booth 1932-6-17 1205 Orange Bolsa Chica Comment
  UCR193273  Stipa cernua A. C. Sanders, Fred M. Roberts 2008-6-17 35507 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  UCR26655  Stipa lepida E. W. Lathrop 1966-4-18 6179 Orange Santa Ana Mtns., 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  SD245221  Stipa miliacea R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49569 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along San Juan Creek. Comment
  UCR177424  Stipa pulchra Scott D. White, Amanda Duchardt 2003-3-27 8852 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  RSA0048676  Stipa pulchra Keith E. Hoffmaster 1935-3-17 551 Orange Near El Toro (Trabuco Road). Comment
  RSA734653  Stylocline gnaphaloides A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35311 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  UCR223962  Stylocline gnaphaloides Fred M. Roberts 2008-4-9 6856 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
  RSA535089  Styrax redivivus Steve D. Boyd, Orlando Mistretta 1991-5-9 6205 Orange Santa Ana Mountains, crest of range, S of Oak Flats at Beek's Place on Main Divide Truck trail at junction with Black Star Canyon Road. 854 Comment
  SD127487  Styrax redivivus Reid Moran, Jack Reveal and Bob Smart 1975-7-18 22599 Orange North slope of ridge, upper Trabuco Canyon, Santa Ana Mts. 900 Comment
  UC2042142  Styrax redivivus R. F. Thorne with E. W. Lathrop, W. Wisura 1977-7-8 49598 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  RSA758777  Suaeda esteroa Anstruther Davidson 1907-9-1 1778 Orange Newport Comment
  SD217268  Suaeda esteroa Louis C. Wheeler 1946-9-28 6385 Orange Margin of salt marsh, Newport Bay. Comment
  UC536968  Suaeda esteroa Lawrence M. Booth 1932-12-13 1373 Orange Newport Bay Comment
  JEPS59879  Suaeda moquinii Lawrence M. Booth 1932-7-4 1247 Orange Newport Bay Comment
  POM694  Suaeda taxifolia D. L. Crawford s.n. Orange Laguna Beach bluffs Comment
  POM695  Suaeda taxifolia P. A. Munz 1918-5-5 2179 Orange Laguna Comment
  RSA442105  Suaeda taxifolia F. R. Fosberg 1930-7-10 455 Orange Anaheim Landing. [Los Angeles Co. on label] 1 Comment
  RSA791013  Suaeda taxifolia W. R. Ferren, S. A. Whitmore 1980-8-27 2332 Orange Newport Backbay along Backbay Drive, ca. 1.5 km northeast of Route 1, Newport Beach. Comment
  SEINET187082  Suaeda taxifolia Allan C. Keller 1937-11-26 Orange Alt. 20 to 40 ft. on cliffs, Doheny Palisades, Highway 101. Comment
  UCSB44182