Search Results — 2000 specimen records retrieved (1621 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/consortium/).
 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
  RSA460929  Abronia maritima N. C. Cooper 1942-11-9 888 Orange Balboa Comment
  RSA585055  Abronia maritima D. Atwood 1993-3-28 17715 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. 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
  SD41424  Abronia maritima Edith A. Purer 1932-8-31 4880 Orange Sand dunes along Route 101. Comment
  CAS-BOT-BC229299  Abronia villosa C. B. Wolf 1931-7-1 2259 Orange Atwood, lower end of Santa Ana Canyon 76 Comment
  RSA38697  Abutilon theophrasti E. L. Paddock 1943-9-10 s.n. Orange Santa Fe Railroad, west of Esperanza Station Comment
  SEINET10484225  Acacia David B. Dunn 1971-8-13 Dunn 18129 Orange Mimosaceae. Cultivated plants vicinity of Laguna Beach, California. Comment
  UCSB52938  Acacia cyanophylla F. M. Roberts, Jr. 1984-3-15 1260 Orange collected 1.0 km SSW and 3.0 km W, along Back Bay Drive in Newport Back Bay Bayview School and U. C. Irvine Campus Center - Newport Back Bay, Back Bay Drive, U. C. Irvine Campus Center 2 Comment
  SD175820  Acacia cyclops D. G. Kelch 2006-12-9 06 554 Orange Irvine. University Dr. along tidal Creek just E of I-73. 9 Comment
  RSA651421  Acacia dealbata Doug Bell 1949-2-2 s.n. Orange Orange. 198 Comment
  SEINET10487478  Acacia farnesiana Charlene A. Bennett 1976-7-22 Bennett 443 Orange Cultivated and native plants collected around the San Clemente Beach area. 3 Comment
  SEINET5642645  Acacia longifolia Shelby J. Wood 2013-3-6 4 Orange Laguna Hills.; 0 Comment
  UCR186429  Acacia redolens Robert DeRuff 1996-3-14 497 Orange Southern Coast, Newport Beach, Newport Back Bay, Big Canyon 3 Comment
  RSA450873  Acacia saligna Fred M. Roberts 1984-3-15 1260 Orange Newport Beach; Upper Newport Back Bay, along Back Bay Drive, 3.0 km. W UC Irvine campus center; 1.0 km. SSW Bayview School. 2 Comment
  RSA514320  Acer macrophyllum Reid V. Moran, Daniel I. Axelrod, Bob Smart 1975-7-18 22595 Orange Along stream near Yeager Mine, upper Trabuco Canyon. 725 Comment
  UCR234158  Acer macrophyllum Dick Newell, Judy Booth 2012-3-25 234 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.5 miles above Maple Springs entrance 615 Comment
  RSA539341  Achnatherum coronatum Fred M. Roberts, Karlin G. Marsh 1989-3-7 4193 Orange Lomas de Santiago: Loma Ridge, Hicks Canyon, 2.3km W Bee Survey Mark., UTM 37 32 200mN, 4 32 900mE 165 Comment
  SEINET7063467  Achyrachaena mollis A. G. Vestal 1947-3-31 s.n. Orange About 2 miles southeast of Brea. UTM Zone 11, 415283mE, 3750494mN. (WGS84/NAD83). 90 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
  SD234951  Acmispon maritimus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34637 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 395 Comment
  RSA542471  Acourtia microcephala Fred M. Roberts, K. Keane 1988-5-25 4584 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker. 91 Comment
  UCD128507  Acroptilon repens P. B. Kennedy 1925-1 s.n. Orange Santa Ana. Comment
  RSA790699  Adenostoma fasciculatum Kenneth Beard 6 Orange Silverado Canyon. Comment
  UCR252214  Adenostoma fasciculatum Amanda C. Swanson 2013-4-21 24 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  RSA358  Adenostoma fasciculatum var. fasciculatum J. T. Howell 1927-7-29 515 Orange Near east boundary of Rancho Santa Ana. 152 Comment
  UCSB41858  Adenostoma fasciculatum var. fasciculatum Fisher, K. 1970-5-15 Orange Tucker Wildlife Sanctuary, Modjeska Canyon 548 Comment
  CAS-BOT-BC175450  Adiantum capillus-veneris A. C. Sanders; Fred M. Roberts 2008-7-16 35836 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Dripping Spring off LImestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  IRVC22035  Adiantum jordanii Fred M. Roberts 1983-12-13 1154 Orange Temple Hill, Park Canyon along Park Ave., 1.3km NE Thurston Sch.; 1.7km SE Bench Mark 104, Laguna Beach 194 Comment
  UCR239501  Agave americana A. C. Sanders, Fred M. Roberts 2008-4-8 34737 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  JEPS32110  Agnorhiza ovata P. C. Everett 1935-6-18 Orange Los Pinos Potrero, main divide motorway Santa Ana Mts. 914 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
  UCR228792  Agoseris retrorsa Dick Newell, Don Millar 2011-5-8 146 Orange Peninsular Range; Santa Ana Mtns., Maple Spring Rd., Cleveland National Forest 1173 Comment
  UCD52253  Agrostis exarata R. M. Love 1942-4-16 11 Orange 8 miles E. of Santa Ana. Comment
  RSA748255  Agrostis pallens A. C. Sanders, Mitch Provance 2008-5-20 35389 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
  UCR219855  Agrostis pallens Fred M. Roberts 2008-6-3 7029 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, East Fork Rattlesnake Canyon, c. 2.6 km NE Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 225 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
  CDA1695  Agrostis viridis M. K. Bellue, Johnson 1945-5-3 Orange 0 Comment
  RSA759146  Ailanthus altissima Robert Allen, D. Taylor 2008-7-19 s.n. Orange Eastern arm of Bedford Peak, along North Main Divide Road, 2.2 road miles N of junction with Bedford Road, 5.9 miles N of junction with Maple Springs Road. 1155 Comment
  IRVC26678  Allium burlewii Mark A. Elvin 2004-4-4 3215 Orange UCI Arboretum Southern Coastal 15 Comment
  CAS-BOT-BC135853  Allium haematochiton P. C. Everett; E. R. Johnson 1935-5-29 7093 Orange Santa Ana Mts., head of Claymine Canyon 731 Comment
  IRVC27140  Allium haematochiton Mark A. Elvin 2005-2-8 3988 Orange UCI Arboretum Southern Coastal 15 Comment
  UCSB18193  Allium haematochiton 1962-3-9 Orange 12.3 miles east of San Juan Capistrano on State 74 243 Comment
Read comments
Apr 10 2016
  UCR150911  Allium monticola Valerie Soza, LeRoy Gross 1999-6-10 509 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1524 Comment
  IRVC27051  Allium praecox Mark A. Elvin 2005-2-8 3987 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA759244  Allium praecox Robt. Allen, Nancy Barnhill 2008-3-30 s.n. Orange San Joaquin Hills, Laguna Coast Wilderness Park, along Mary's Trail, a short distance uphill from the Nix Nature Center 134 Comment
  RSA753419  Allophyllum glutinosum D. E. Bramlet 2008-5-16 4276 Orange Agua Chinon Wash . Site is located 3m north of the access road and 1.1km NE of Hwy 241 229 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
  RSA696334  Alnus rhombifolia R. H. McArthur 1934-2-10 s.n. Orange Santiago Canyon above Modjeska Comment
  RSA0059071  Amaranthaceae CNPS Accuracy Assessment Team 2014-7-7 9342 .2 Orange San Joaquin Freshwater Marsh Reserve. Comment
  UCR140882  Amaranthus albus Robert DeRuff 1987-8-22 299 Orange Southern Coast, Newport Back Bay, Santa Ana Heights area 18 Comment
  RSA234474  Amaranthus albus James Henrickson 1970-7-24 4975 Orange 1.5 miles NW of Huntington Beach along NW facing base of Huntington Beach Mesa bordering Bolsa Chica Salt Marsh. 3 Comment
  RSA719405  Amaranthus blitoides Fred M. Roberts, Robert L. Allen 2006-10-8 6430 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  UCSB48240  Amaranthus blitoides Roberts, Fred 1981-7-21 Orange Rancho Mission Viejo; Calif. Rte. 74, 9.2 km. ENE San Juan Capistrano 100 Comment
  POM201837  Amaranthus blitoides L. M. Booth 1932-12-16 1377 Orange Santa Ana River, near coast of Orange. Comment
  IRVC14988  Amaranthus hybridus 1976-10-28 Orange Nieblas Elementary Sch. playground Fountain Valley Comment
  POM5985  Amblyopappus pusillus Philip A. Munz 1918-5-5 2186 Orange Laguna Beach. Comment
  UC537060  Amblyopappus pusillus P. A. Munz 1934-3-26 13135 Orange dry slopes, ravine Newport Beach 15 Comment
  RSA695490  Amblyopappus pusillus J. Vlahos s.n. Orange Corona Del Mar Comment
  CAS-BOT-BC13607  Ambrosia acanthicarpa Helen D. Geis Spring 1902 534 Orange Sant Ana Comment
  SD234274  Ambrosia acanthicarpa T. B. Salvato, K. Kurtz 2006-10-15 1916 Orange South Coast: Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue. 6 Comment
  HSC5659  Ambrosia chamissonis J. W. Johnson 1960-8-18 Orange Newport Beach, beside Newport bay, near Hwy. 101 Comment
  JEPS40940  Ambrosia chamissonis L. M. Booth 1932-7-30 1336 Orange Balboa Island Comment
  UCR239934  Ambrosia chamissonis O. F. Clarke 2004-4-5 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  CAS-BOT-BC45063  Ambrosia psilostachya Ira L. Wiggins 1965-10-18 20272 Orange Vacant lot, NE corner of Chapman Ave. and Victor Dr., Fullerton Comment
  CDA10047  Ambrosia psilostachya D. G. Kelch 2006-12-9 6 .551 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  UCR210370  Ambrosia psilostachya T. B. Salvato, Billy Deane 2006-10-16 1938 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
Read comments
Jul 30 2010
  POM48524  Ammannia robusta F. M. Reed 1924-8-15 4962 Orange Laguna Lake bed - Laguna canyon. Comment
  RSA16473  Amorpha californica var. californica Percy C. Everett 1935-6-19 7235 Orange Trabuco canyon. 1/2 mile below W. head of canyon. 1067 Comment
  LA204903  Amorpha fruticosa Carl Epling; H. Lewis 1940-4-21 sn Orange 6 mi. E of San Juan Capistrano Comment
  RSA550592  Amorpha fruticosa Fred M. Roberts 1989-4-26 4322 Orange Lower Blind Canyon near mouth, 9.2 km SW Sierra Peak, 1.0 km N Irvine Lake spillway. 207 Comment
  RSA679090  Amorpha fruticosa Fred M. Roberts 2003-7-24 5969 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
  RSA725474  Amorpha fruticosa Fred M. Roberts, Megan Lulow 2007-7-30 6544 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  UC484243  Amsinckia intermedia C. B. Wolf 1931-3-6 Orange e side of Orange County Park 152 Comment
  RSA0016948  Amsinckia intermedia S. A. W. 1971-4-22 19 -D Orange Carbon Canyon Road (St. Hwy. 142) at jct. with Co. dump rd. 1 mi. N Imperial Hwy. 183 Comment
  RSA0089447  Amsinckia intermedia Ken Greby 1985-4-18 17 Orange Alongside Laguna Canyon Rd. approx. 1.5 km. NE from El Toro Rd. 46 Comment
  UCD119278  Amsinckia intermedia Francia Chisaki 1957-4-3 928 Orange 6 miles S of Irvine, just S of El Toro near top of hill on Highway 101. Comment
  IRVC204  Amsinckia menziesii var. intermedia L. Aldis 1965-4-27 Orange Irvine Park Comment
  IRVC9355  Amsinckia menziesii var. intermedia B. T. Gittins 1963-4-21 179-A Orange Newport Back Bay. Newport Beach Comment
  JEPS43116  Anagallis arvensis Lawrence M. Booth 1932-6-28 1216 Orange Bolsas Creek Comment
  RSA465135  Anagallis arvensis M. B. Dunkle 1933-4-9 3273 Orange Dana Point. 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
  POM2020  Anemopsis californica D. L. Crawford s.n. Orange Laguna Beach. Comment
  UCD137875  Anemopsis californica E. Frost 1996-5-11 12 Orange Newport Back Bay, 150 yards in along bike path. 7 Comment
  UCR159783  Anemopsis californica Peter A. Bowler 2003-4-20 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; in marsh at north edge of marsh beside UCI Arboretum 3 Comment
  RSA587885  Anemopsis californica Fred M. Roberts 1990-5-8 4614 Orange Chino Hills: Soquel Canyon, ca. 1.2 km NNW of Gilman Peak. 240 Comment
  IRVC21319  Anthemis cotula Fred M. Roberts 1982-7-31 788 Orange 0.3km NNW Clemente Survey Mark; 1.2km NNE Civiv Center, San Clemente 220 Comment
  RSA184175  Anthemis cotula I. L. Wiggins 1966-4-22 20615 Orange Along Associated road between Yorba Linda Boulevard and Imperian Highway. Comment
  UC536891  Anthemis cotula Lawrence M. Booth 1932-5-15 1200 Orange Santa Ana River Santa Ana River Comment
Read comments
Aug 21 2007
  POM50573  Antirrhinum coulterianum L. R. Abrams 1901-6-15 1790 Orange Santiago Peak trail. Comment
  RSA594820  Antirrhinum coulterianum Fred M. Roberts, Sandra Leatherman, Brian Leatherman 1994-4-24 4914 Orange Santa Ana Mountains: San Juan Canyon, CA route 74, Lower San Juan Picnic Ground. 354 Comment
  RSA697  Antirrhinum coulterianum J. T. Howell 1927-6-5 34 Orange Rancho Santa Ana, near east boundary. 152 Comment
  CLARK-A1528-4161  Antirrhinum coulterianum subsp. orcuttianum John C. Roos 1937-5-10 2082 Orange San Juan Capistrano Comment
  UCR203909  Antirrhinum multiflorum R. E. Riefner Jr. 2008-6-17 08- 159 Orange Santa Ana Mountains, Irvine Ranch Reserve, North Irvine Ranch, middle Fremont Canyon, east slope along Black Star SCE Road 618 Comment
  UC1929691  Antirrhinum multiflorum R. E. Riefner Jr. 2008-6-3 08 -139 Orange Irvine Ranch Reserve, North Irvine Ranch, East Fork cliffs at upper Fremont Canyon along Black Star SCE Rd. Comment
  RSA698988  Antirrhinum strictum Unspecified 1935-04 s.n. Orange Silverado Canyon. Comment
  RSA749299  Apiastrum angustifolium Fred M. Roberts 1999-4-21 5184 Orange Lomas de Santiago: Loma Ridge, ridges north of Dripping Springs Cyn., 1.5 km W Silverado Sch. and 4.8 km NNW Bolero Lookout. 365 Comment
  RSA700187  Apium graveolens R. H. McArthur 1934-5-10 s.n. Orange 1916 Wash 4 mi. west 1 mi. south S.A. Comment
  RSA38679  Aquilegia formosa P. A. Munz 1946-10-26 11619 Orange Botanic Garden. Comment
  IRVC19394  Araujia sericifera R. L. Allen 1983-2-12 A627 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  CAS-BOT-BC128677  Arbutus menziesii Carl B. Wolf 1933-11-8 2008 Orange Trabuco Canyon on south wall opposite the Trabuco Truck Trail, Santa Ana Mts. 914 Comment
  RSA767  Arctium lappa J. T. Howell 1927-6-30 253 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA629335  Arctostaphylos glandulosa Jon E. Keeley 1992-6-12 15527 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
  UCR282324  Arctostaphylos glandulosa A. C. Sanders, Yi Huang 2017-3-3 42703 Orange Peninsular Range; Santa Ana Mtns., North Main Divide Road, 6.5 km north of Hwy 74, at junction to Blue Jay and Falcon Camps 1038 Comment
  RSA16475  Arctostaphylos glandulosa subsp. glandulosa P. C. Everett 1935-6-19 7232 Orange Main divide motorway. Upper sonoran or arid transition. Sun, W. slope, sandstone. 1280 Comment
  RSA629323  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15504 Orange Road to Blue Jay Campground, 1 km south of Hotshot Camp, north of Ortega Hwy. (Hwy. 74). 800 Comment
  RSA629329  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15515 Orange Road to Los Pinos Peak (3S04), 2 km northeast of Blue Jay Campground and 1 km above 5S05. North of Hwy. 74. 1100 Comment
  RSA629331  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15513 Orange Rd. 6S06, 1km northeast of Blue Jay Campground, north of El Cariso (Hwy 74) 1050 Comment
  RSA545  Arctostaphylos glandulosa subsp. zacaensis J. T. Howell 1927-6-26 222 Orange Claymine Canyon, near Sierra Peak. 457 Comment
  UC1302404  Arctostaphylos glandulosa subsp. zacaensis Robert F. Thorne and John Olmstead 1963-7-26 32838 Orange in Tin Mine Canyon above Beek's Spring; Cleveland National Forest, Santa Ana Mts., Trabugo District 609 Comment
Read comments
Apr 25 2011
  UC284866  Arctostaphylos glandulosa subsp. zacaensis P. A. Munz 1923-5-7 7741 Orange slopes above Santiago Peak 1219 Comment
  UCR27108  Argemone munita subsp. robusta T. P. Krantz 1981-6-18 s.n. Orange Santa Ana Mtns, Main Divide Truck Trail near the head of the canyon Comment
  SEINET4002143  Argemone munita var. robusta G. B. Ownbey, F. Ownbey 1954-1 2168 Orange Between Modjesca Peak and Santiago Peak. 1524 Comment
  RSA542514  Aristida adscensionis Fred M. Roberts 1987-3-31 3321 Orange Lomas de Santiago: Lomas [Loma] Ridge, upper Serrano Canyon, east fork, reservoir, 2.7 kilometers SE Bolero Lookout, UTM 3727900m N, 441800m E. 424 Comment
  UCR215291  Aristida adscensionis Fred M. Roberts, D. E. Bramlet 2008-5-13 6953 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  UC1234761  Arnica discoidea Peter H. Raven 1962-5-18 17751 Orange 4.8 mi above gate on Silverado Canyon Truck Trail Silverado Canyon Truck Trail; Santa Ana Mountains 1066 Comment
  RSA759263  Arnica discoidea Robt Allen, Christopher M. Barnhill 2008-5-26 s.n. Orange upper Silverado Canyon, along Maple Springs Truck Trail, 5.7 road miles up from Maple Springs forest gate, 0.8 road miles down from junction with Main Divide Truck Trail. SW end of short road spur. 1313 Comment
  RSA696761  Artemisia biennis J. Russell Bruff 1930-10-26 s.n. Orange Santa Ana River bed. Comment
  RSA0028027  Artemisia californica Fred M. Roberts 2012-9-6 7700 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  SEINET227962  Artemisia californica Leila M. Shultz 1980-5-2 4040 Orange Orange County: foothills south of Diamond Bar, Chaparral. 213 Comment
  UC520316  Artemisia californica Joseph Andorfer Ewan 1932-7-28 7710 Orange e end Newport Bay Comment
  UCR247873  Artemisia californica Fred M. Roberts 2012-9-6 7700 Orange SAN JOAQUIN HILLS: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 km WNW Pelican Hill summit. 37 Comment
  UCR46553  Artemisia californica B. G. Pitzer, L. F. LaPre 1986-10-20 0311 Orange Peninsular Range; Santa Ana Mtns., Siphon Reservoir, c. 5 mi NE of Irvine and c. 1 mi NE of intersection Irvine Blvd and Sand Canyon Ave 122 Comment
  JEPS36975  Artemisia dracunculus John Thomas Howell 1927-9-24 3110 Orange Rancho Santa Ana Santa Ana Canon 152 Comment
  RSA772  Artemisia dracunculus J. T. Howell 1927-7-17 419 Orange Between Tustin and Laguna Beach. 122 Comment
  SD72851  Artemisia dracunculus F. R. Fosberg 1931-6-21 S 5089 Orange Lower Santiago Canyon Comment
  RSA773  Artemisia dracunculus J. T. Howell 1927-9-24 745 Orange Santa Ana Botany Garden 152 Comment
  RSA542588  Asclepias eriocarpa Fred M. Roberts, K. Keane 1988-5-25 3998 Orange Rancho Mission Viejo: Lower Canada Chiquita, 1.9km SSE Medium Rancho Survey Mark, UTM 3710800m N, 443500m E 90 Comment
  UCR192989  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-6-17 35489 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  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
  UCR233746  Asclepias fascicularis Fred M. Roberts 2008-6-12 7041 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge, Shoestring Canyon, Shoestring Road near jct. with Santiago Cyn. Rd. 251 Comment
  RSA0127349  Asphodelus fistulosus Fred M. Roberts 2016-5-20 8057 Orange City of Irvine: San Joaquin Hills, Turtle Rock Community along Ridge Route Road, 1.0 km SE summit of French Hill and just NE intersection with Hillsborough Drive. 122 Comment
  POM146199  Aster bernardinus F. M. Reed 1927-11-9 5634 Orange Margin of Hwy, 1 mile S of Tustin. Comment
  RSA715694  Aster subulatus var. ligulatus Fred M. Roberts, Chris M. Barnhill 2005-9-27 6275 A Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA5862  Aster subulatus var. ligulatus C. B. Wolf 1932-9-16 4114 Orange San Gabriel River, bordering Los Alamitos Bay 2 Comment
  RSA93743  Aster subulatus var. ligulatus F. W. Peirson 1924-10-19 5240 Orange Wintersberg Comment
  RSA93807  Aster subulatus var. ligulatus F. W. Peirson 1919-11-8 1278 Orange Aliso Creek. 0 Comment
  RSA701753  Astragalus brauntonii Elisabeth Landis, Valentin Arvizu, Cliff McLean, Kadest Ketsella 2004-9-6 s.n. Orange Specimen located against wooden cofferdam in wet sand in CalTrans debris basin on S side of 91 Freeway in Coal Canyon. Comment
Read comments
Nov 22 2011
  RSA0089238  Astragalus didymocarpus David E. Bramlet, J. E. Harrison 2008-4-3 4157 Orange Peninsular Range; Santa Ana Mountains: South Bee Canyon, Bowerman landfill site, 1.2 km south of the Bee Canyon access road, and 122 m west of the active landfill. 224 Comment
  RSA699634  Astragalus didymocarpus Keith E. Hoffmaster 1935-3-17 s.n. Orange Near El Toro (Trabuco rd.) Comment
  UCR266298  Astragalus didymocarpus D. E. Bramlet, J. E. Harrison 2008-4-3 4154 Orange Peninsular Range; Santa Ana Mountains, South Bee Canyon, Bowerman landfill site, 1.2 km south of the Bee Canyon access road, and 122 m west of the active landfill 224 Comment
  CAS-BOT-BC182320  Astragalus didymocarpus var. didymocarpus Helen D. Geis 1902-4-1 s.n. Orange Santiago Creek Comment
  UCD104734  Astragalus didymocarpus var. didymocarpus G. H. Vansell 1939-4-23 s.n. Orange Santiago Canyon. Comment
  RSA0042736  Astragalus trichopodus var. trichopodus David Barrios 1991-5-8 35 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 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
  UC1980258  Atriplex R. E. Riefner Jr. 2008-3-24 08 -67 Orange City of Seal Beach, Bolsa Chica Salt Marsh, Warner Ave. at Pacific Coast Highway. Comment
  UCR281836  Atriplex R. E. Riefner Jr. 2006-10-21 06- 662 Orange South Coast, city of Irvine, MacArthur Blvd, c. 0.2 mile south of Jamboree Road, extendingto along Bonita Creek 12 Comment
  RSA737374  Atriplex R. E. Riefner 2006-10-19 06 -546 Orange City of Lake Forest, 0.5 mile N of Alton Pwy on E side of SR 241. 230 Comment
  RSA743663  Atriplex R. E. Riefner 2006-9-6 6 -425 Orange City of Newport Beach, Newport Bay, Big Canyon Creek drainage near Back Bay Dr. 9 Comment
  SBBG132290  Atriplex amnicola R. E. Riefner Jr. 2005-9-16 05 -666 Orange upper Newport Bay, E of Bayside Dr at confluence with Big Cyn 6 Comment
  RSA737233  Atriplex amnicola R. E. Riefner 2006-2-12 06 /21/2015 Orange N end of City of San Clemente, along I5 N, immediately S of Camino de Estrella exit ramp. 66 Comment
  RSA743667  Atriplex amnicola R. E. Riefner 2008-5-25 8 -111 Orange City of San Clemente, vicinity of Camino de Los Mares and Calle Nuevo. 45 Comment
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Aug 26 2013
  SBBG122000  Atriplex amnicola R. E. Riefner 2006-8-6 06 -381 Orange Big Cyn Crk drainage near Back Bay Drive, Newport Bay 8 Comment
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Dec 13 2012
  RSA260  Atriplex canescens J. T. Howell 1927-10-22 759 Orange Near Eastern Boundary, Rancho Santa Ana. 152 Comment
  RSA734662  Atriplex canescens A. C. Sanders, Fred M. Roberts 2008-6-17 35484 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, East Loma Ridge Spur Road c. 300 m NW of Shoestring Rd. junction, on ridge above tollway, 1.35 mi. SSW of Irvine Lake. 398 Comment
  UCR193044  Atriplex canescens A. C. Sanders, Fred M. Roberts 2008-6-17 35484 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, East Loma Ridge Spur Road c. 300 m NW of Shoestring Rd. junction, on ridge above tollway, 1.35 mi. SSW of Irvine Lake 398 Comment
  CAS-BOT-BC170195  Atriplex canescens subsp. canescens John Thomas Howell 1927-10-22 3163 Orange In hills on n. side of Santa Ana Canyon. 152 Comment
  SD144473  Atriplex canescens var. canescens B. Pitzer 1996-4-30 2789 Orange Crystal Cove State Park, S of City of Irvine on Hwy 1 (Pacific Coast Hwy). Comment
  RSA542648  Atriplex coulteri Fred M. Roberts, Kathy Keane 1988-5-26 4014 Orange Ranch Mission Viejo: Christianitos Canyon, 4.0km ESE Viejo Survey Mark. 162 Comment
  IRVC23986  Atriplex davidsonii R. De Ruff 1988-5-20 Orange Newport Backbay, north end on western shore, Newport Beach 0 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
  SD243319  Atriplex glauca R. E Riefner 2005-12-13 05 784 Orange City of Lake Forest; ca. 0.5 mile N of Alton Pkwy along E side of SR-241 230 Comment
  SEINET1908425  Atriplex glauca A. C. Sanders 2008-1 35139 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi SW of Santiago Reservoir 1000 Comment
  RSA737854  Atriplex glauca R. E. Riefner 2006-3-19 06 /01/1952 Orange City of Newport Beach, near Avocado Ave, and San Nicolas Dr. W of McAthur Blvd. 77 Comment
  SBBG121998  Atriplex glauca R. E. Riefner 2005-12-13 05 -784 Orange ca. 0.5 mi N of Alton Parkway, E side of SR-241; Lake Forest 230 Comment
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Dec 13 2012
  CLARK-A1528-1186  Atriplex leucophylla John C. Roos 1949-10-1 4677 Orange Doheney Beach Comment
  POM641  Atriplex leucophylla D. L. Crawford 1925-07 s.n. Orange Beach Comment
  RSA478322  Atriplex leucophylla Anstruther Davidson 1902-09 s.n. Orange Newport Beach. Comment
  POM219183  Atriplex pacifica L. C. Wheeler 1932-6-25 855 Orange Newport Bay. 3 Comment
  RSA232223  Atriplex prostrata James Henrickson 1970-10-3 s.n. Orange 3 miles NE of Huntington Beach just N of Bolsa Chica Salt Marsh. 0 Comment
  UCR141335  Atriplex rhagodioides Robert DeRuff 1987-5-2 369 Orange Southern Coast, Newport Beach, Newport Back Bay, Big Canyon 8 Comment
  POM201896  Atriplex rosea L. M. Booth 1932-7-4 s.n. Orange Newport Lagoon Comment
  RSA768506  Atriplex semibaccata Justin M. Wood 2009-12-1 1393 Orange Santa Ana River: marsh just upstream of Pacific Coast Highway. 0 Comment
  RSA18529  Atriplex semibaccata C. B. Wolf 1927-7-23 668 Orange Along the coast just north of San Clemente. Comment
  RSA5955  Atriplex serenana C. B. Wolf 1932-7-7 3846 Orange Bixby Ave., 0.7 mile W of Hansen road (0.2 mile W of SE corner of NE/4 of NW/4). 8 Comment
  UC536973  Atriplex serenana var. davidsonii Lawrence M. Booth 1932-7-1 1248 Orange Newport Lagoon Comment
  UC536963  Atriplex serenana var. serenana Lawrence M. Booth 1932-7-25 1315 Orange 2 mi from ocean (Santa Ana River); Santa Ana River Comment
  SD220052  Atriplex suberecta Mark A. Elvin 2004-5-2 3424 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  UCR158033  Atriplex suberecta Adrian Wolf 1998-7-1 408 Orange South Coast, Peters Canyon Channel, east of channel near Harvard Ballfield, between Harvard Ave. & creek, south of Warner Ave. to Barranca 15 Comment
  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
  UC1130900  Avena barbata A. Lewis Apr 1934 395 Orange San Joaquin Hills Corona Quadrangle Comment
  UCR192481  Avena barbata A. C. Sanders, Fred M. Roberts 2008-3-25 34517 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA0015958  Avena fatua Fred M. Roberts 2012-4-24 7535 Orange San Joaquin Hills: Buck Gully, above main trail, 2 km W Signal Peak and about 0.4 km S San Joaquin Hills Road. 155 Comment
  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
  IRVC25484  Baccharis douglasii Fred M. Roberts 1987-6-21 3467 Orange Bolsa Chica salt marsh: 1.0km SSE Chica Hill near east Garden Grove-Wintersburg Channel southern coastal 0 Comment
  POM17840  Baccharis douglasii Philip A. Munz 1923-9-6 7733 Orange Holy Jim Canyon, Santa Ana Mts 762 Comment
  RSA151095  Baccharis douglasii Peter H. Raven 1961-10-15 16861 Orange Coast Hwy 2 miles SE of Sunset Beach 0 Comment
  RSA655626  Baccharis douglasii A. C. Sanders 2000-4-19 23336 Orange Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 0 Comment
  CDA10367  Baccharis emoryi Hill, Lee 1951-9-9 B 51632 Orange Santa Fe Railroad tracks, near Red Hill Avenue, Santa Ana. 0 Comment
  IRVC18079  Baccharis emoryi Gordon A. Marsh 1980-10-24 Orange Irvine: San Joaquin Frreshwater Marsh, south end, earth dam, pond 4. southern coastal Comment
  RSA0036017  Baccharis emoryi Robert F. Thorne 1977-11-21 50806 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  JEPS57449  Baccharis glutinosa L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2044 a Orange north of (across U.S. Highway 101 from Huntington State Beach) Newport Beach; Bolsas Marsh Comment
  UCR210317  Baccharis glutinosa A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37201 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  UCR80030  Baccharis glutinosa Scott D. White 1992-10-14 967 Orange Brea, immediately north of Carbon Canyon Rd. & east of Placentia Ave., c. 1 mi. (airline) SSE of Tonner Canyon 183 Comment
  SD135168  Baccharis glutinosa Brian Fink 1992-10-7 Orange Huntington Beach Comment
  UCR205870  Baccharis malibuensis R. E. Riefner Jr., T. Smith 2007-6-22 07- 275 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Road 545 Comment
  UCR205871  Baccharis malibuensis R. E. Riefner Jr. 2008-7-17 08- 241 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Road 600 Comment
  RSA743499  Baccharis pilularis Fred M. Roberts 2008-9-10 7098 Orange Dana Point: Dana Point Headlands, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  RSA793263  Baccharis pilularis R. F. Thorne 1984-1 s.n. Orange Newport Back Bay. Comment
  SD108950  Baccharis pilularis James Henrickson 1972-10-21 8047 Orange Eastern Anaheim, 2 blocks east of Imperial Highway, along La Palma Avenue, just north of Santa Ana River. 60 Comment
  RSA658218  Baccharis salicifolia T. A. Daubert 1991-5-19 649 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  SBBG40584  Baccharis salicifolia C. Ingram 1960-3-29 256 Orange ca. 3 mi above O'Neill Park, Trabuco Cyn Comment
  SEINET5642762  Baccharis salicifolia Shelby J. Wood 2013-3-9 16 Orange Huntington Beach, Central Park.; 0 Comment
  UCR192736  Baccharis salicifolia A. C. Sanders, Fred M. Roberts 2008-5-6 35231 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  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
  UCSB36207  Baccharis salicina Ferren, Wayne; Roberts, Fred 1980-8-27 Orange Newport Back Bay trending NW from Bayside Drive, ca. 3.5 km. NE of Rt. 1, Newport Beach Comment
  IRVC22976  Baccharis sarothroides Karlin G. Marsh 1986-12-15 Orange Santa Ana Canyon, Santa Ana River, south side, Horseshoe Bend, Yorba Linda 105 Comment
  UCR267220  Baccharis sarothroides Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7091 Orange Santa Ana River Canyon, YORBA LINDA: intersection of La Palma Ave. and Mercado del Rio Street 135 Comment
  UCR267221  Baccharis sarothroides Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7093 Orange Santa Ana River Canyon, YORBA LINDA: intersection of La Palma Ave. and Mercado del Rio Street 135 Comment
  RSA699555  Baccharis viminea Minor Warne 1934-02 s.n. Orange Santa Ana Mountains Comment
  UC536942  Bassia hyssopifolia Lawrence M. Booth 1932-5-27 1130 Orange West Newport Beach Comment
  POM184312  Bassia hyssopifolia L. M. Booth 1932-8-5 1348 Orange Mouth of Santa Ana River. Comment
  POM202235  Bassia hyssopifolia L. M. Booth 1932-8-5 1348 Orange West Newport Beach Comment
  CHSC26476  Batis maritima James Henrickson 1970-7-25 5034 b Orange 3 1/2 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along Pacific Coast Hwy. 0 Comment
  POM48003  Batis maritima I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  UC1779705  Batis maritima Rudolf Schmid 1999-7-14 1999 -6 Orange Bolsa Chica Marsh, S of Seal Beach. From the S side of parking lot by HW1. Comment
  POM17862  Bebbia juncea Philip A. Munz 1923-7-8 73226 Orange Santa Ana River Canyon Comment
  RSA5334  Bebbia juncea B. D. Stark 1933-1-3 4480 Orange Rancho Santa Ana near pear orchard. 122 Comment
  UCR38073  Bebbia juncea G. Sampson 1985-5-7 85- 387 Orange Chino Hills State Park, abandoned corral site at the west end of Telegraph Canyon Comment
  CAS-BOT-BC106376  Bebbia juncea var. aspera Helen D. Geis 1902-1-1 550 Orange Santiago Cr. Comment
  RSA799942  Beta vulgaris Justin M. Wood 2011-6-28 4307 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. Just W of parking area. 25 Comment
  CAS-BOT-BC102098  Bidens laevis John Thomas Howell 1927-10-23 3170 Orange Santa Ana River bottom, Santa Ana Canon 152 Comment
  RSA683221  Bidens laevis Scott D. White, Matt Carlton 2003-11-20 9876 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 37 Comment
  RSA488143  Bidens laevis Fred M. Roberts, Gordon Marsh 1985-10-26 2519 Orange Santa Ana River: adjacent to Huntington Beach: 0.7 km SSW Adams St bridge 4 Comment
  JEPS32529  Bidens pilosa Lawrence M. Booth 1932-7-19 1276 Orange 5 mi se of the Los Angeles County line (Bolsa Creek); Bolsa Creek Comment
  RSA773503  Bloomeria crocea Fred M. Roberts 1999-5-14 5223 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon, 0.7 km NW Bolero Spring and 2.6 km SW Silverado School 502 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
  RSA704042  Bloomeria crocea Ralph Walker s.n. Orange Local hills 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
  UCSB56463  Bolboschoenus maritimus Thorne, Robert 1975-4-6 Orange Head of Newport Bay Comment
  UCR12590  Bolboschoenus maritimus subsp. paludosus J. S. Davis 1972-5-6 720506- 10 Orange South Coast, Newport Beach, between corner of San Joaquin Hills Road & Back Bay Road, & salt marsh flats. 0 Comment
  UCR61919  Bolboschoenus maritimus subsp. paludosus Richard A. Marin 1971-5-11 71- 80 Orange Irvine, corner of MacArthur Blvd. & University Drive Comment
  UCR85532  Bolboschoenus maritimus subsp. paludosus Scott D. White 1993-4-28 1289 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  UCD55403  Bolboschoenus robustus B. Pitzer 1996-4-30 2772 Orange Upper Newport Bay, California Dept. Fish and Game Ecological Reserve, off (W of) Jamboree Rd. UTM 10 km cell: MH-1E, 2N. Costa Mesa. 6 Comment
  UC712166  Bothriochloa barbinodis Charles B. Fiker 1944-7-7 3139 Orange Trabuco Canyon, on Bill Rochester Ranch Trabuco Canyon Comment
  RSA731758  Bougainvillea glabra Fred M. Roberts, Sandy Leatherman 2007-11-9 6647 Orange San Juan Canyon along San Juan Creek, within the community of San Juan Hot Springs. 216 Comment
  IRVC18518  Bowlesia incana A. B. McGee 1981-3-27 Orange UCI Ecological Preserve. Irvine Comment
  JEPS12252  Bowlesia incana Lawrence M. Booth 1932-5-19 1065 Orange Newport Bay Comment
  POM294343  Bowlesia incana Lyman Benson 1947-4-27 12341 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 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
  UCSB52932  Brachypodium distachyon Roberts, Fred; Marsh, K. 1983-5-13 Orange Dana Point Headlands; S of Pacific Coast Hwy, 0.5 km NW Dana Point Harbor; 0.4 km SSW Richard Henry Dana School 80 Comment
  RSA0069883  Brassica geniculata Fred M. Roberts 2014-4-21 7860 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), south basin. 113 Comment
  CLARK-A1528-982  Brassica nigra Patricia A. Andrews 1975-6-26 5915 Orange Capistrano Bay Beach 9 Comment
  RSA0066348  Brassica nigra A. C. Sanders, Fred M. Roberts 2008-3-25 34567 Orange Peninsular Range; Santa Ana Mtns.: Saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake. 405 Comment
  CAS-BOT-BC36765  Brassica rapa Ira L. Wiggins 1965-10-24 20292 Orange On south side of Yorba Linda Boulevard, 0.25 mile east of State College Boulevard, Fullerton. Comment
  CAS-BOT-BC36768  Brassica rapa Ira L. Wiggins 1965-12-5 20365 Orange 2 miles east of Atwood on north side of Orangethorpe Avenue. Comment
  RSA792477  Brassica rapa Justin M. Wood 2011-2-28 3268 Orange South Coast: Santa Ana River, marsh just upstream of Pacific Coast Highway. Plants collected throughout the marsh and along the adjacent bike path. 0 Comment
  UCR102002  Brassica rapa B. G. Pitzer 1997-3-25 3036 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  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
  RSA658595  Brodiaea filifolia David E. Bramlet 2001-5-23 3145 Orange Prima Deshecha landfill. The site is located 671m southwest of the landfill entrance and 46m south of the existing ridgeline access road. 134 Comment
  RSA779934  Brodiaea filifolia R. E. Riefner Jr. 2011-5-20 20760 Orange Newport Beach, Coastal Peak Park, East Coastal Peak Road at Ridge Park Road 305 Comment
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Dec 7 2014
  UCR142299  Brodiaea filifolia Robert Hamilton 1998-6-19 s.n. Orange SCE easement N of the Foothill Transportation Corridor; 1.3 km N of El Toro Road and 1.6 km east of Portola Parkway 290 Comment
  RSA679215  Brodiaea terrestris subsp. kernensis Fred M. Roberts 2003-6-17 5912 Orange Just NE of Falcon roup Camp, 2.1km ESWE Los Pinos Peak just west of main road. 1009 Comment
  SD241668  Bromus carinatus A. C. Sanders 2008-4-29 35144 Orange Peninsular Range; Santa Ana Mountains: Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 miles SW of Santiago Reservoir (Black Star Canyon 7.5'Q) 334 Comment
  CAS-BOT-BC156206  Bromus catharticus Ira L. Wiggins 1965-9-26 20264 Orange Along Orangethorpe Avenue near Atwood. Comment
  POM1272  Bromus catharticus C. B. Bradshaw s.n. Orange Orange. Comment
  UCD58321  Bromus catharticus Beecher Crampton 1967-5-23 7958 Orange Ca. 2 miles east of Irvine Sand Canyon and Trabuco Roads. Comment
  RSA0013959  Bromus diandrus Fred M. Roberts 2008-5-7 6939 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
  RSA737538  Bromus diandrus Fred M. Roberts 2008-3-12 6724 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UC1131180  Bromus diandrus A. Lewis Apr 1934 393 Orange San Joaquin Hills 60 Comment
  UCSB21210  Bromus diandrus Leseman, Julie 1965-4-15 Orange Behind Fullerton Junior College, Fullerton Comment
  UCR154344  Bromus hordeaceus Mark A. Elvin 2004-5-2 3408 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 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
  RSA650632  Bromus hordeaceus Daniel Truong 1991-5-5 13 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  RSA696328  Bromus hordeaceus Keith E. Hoffmaster 1928-4-25 s.n. Orange Santa Ana Comment
  UCR192067  Bromus madritensis A. C. Sanders, Fred M. Roberts 2008-5-6 35251 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UCR192104  Bromus madritensis A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35306 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  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
  CAS-BOT-BC162108  Bromus porteri John Thomas Howell 1927-6-17 2549 Orange Hills on north side of Santa Ana Canon [Canyon]. 152 Comment
  RSA696610  Bromus rubens Jeanne Paxton 1934-4-21 s.n. Orange Orange County Dam. Comment
  POM363952  Bromus rubens Alice Jane Merritt 1893-05 s.n. Orange Santa Anna [Santa Ana] Comment
  RSA696611  Bromus rubens Ranki s.n. Orange Casta Mesa Comment
  UCD59710  Bromus sterilis Scott D. White; Noel Davis 1998-5-21 6548 Orange Santa Ana Mtn. foothills. Mission Viejo Area: Aliso Creek watershed, east of El Toro Rd., just N of jtn. w/ Valley Vista Wy. Large proposed subdivision called 'Saddleback Meadow. 304 Comment
  UC124604  Cakile edentula A. Davidson, M. D. 1908-5-2 1789 Orange s Newport Bay Newport Bay Comment
  UCSB48047  Cakile maritima Roberts, Fred 1981-9-26 Orange Huntington Beach; Calif. Rte. 1, near mouth of Santa Ana River, 0.1 km. N jct. Brookhurst Ave.; 0.1 km. SW Bench Mark 7 2 Comment
  SFV18212  Cakile maritima H. Reyes, M. Nasseri 2000-5-5 s. n. Orange Bolsa Chica State Beach, south of Pacific Coast Highway at bank of Inner Bolsa Bay. Comment
  UC907536  Calamagrostis koelerioides Clark H. Gleason 1949-8-5 Orange near Hidden Ranch; Cleveland National Forest, Black Star Canyon Comment
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May 27 2008
  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
  UCR203903  Calandrinia breweri R. E. Riefner Jr. 2008-5-20 08- 104 Orange Irvine Ranch Reserve, north Irvine Ranch, western Fremont Canyon, Windy Ridge Road 531 Comment
  RSA279  Calandrinia ciliata J. T. Howell 1928-2-25 841 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC438320  Calandrinia ciliata Ira L. Wiggins 1966-3-5 20508 Orange Along Highway S-18, about 4.5 mi. E. of Laguna Beach. Comment
  RSA696973  Calendula officinalis Ruth Greenwald 1938-05 s.n. Orange Santa Ana Comment
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Jun 10 2012
  UCR199267  Callistemon viminalis R. E. Riefner Jr. 2007-4-1 07- 163 Orange South Coast, city of Laguna Niguel, Oso Creek, c. 1.5 mi north from Paseo de Colinas Street on Camino Capistrano Street 88 Comment
  UCR210367  Callistemon viminalis T. B. Salvato, Billy Deane 2006-10-16 1942 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  SBBG133368  Callistemon viminalis R. E. Riefner Jr. 2007-4-1 07 -163 Orange Oso Crk, ca. 1.5 mi N from Paseo de Colinas St on Camino Capistrano St; City of Laguna Niguel 87 Comment
  RSA665954  Callitriche marginata Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5425 Orange Rancho Mission Viejo: South of San Juan Creek, 0.6km WNW Median Rancho Survey Marker. PCR Vernal Pool 2. 183 Comment
  RSA708813  Callitriche marginata Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6162 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  RSA21235  Calochortus catalinae S. B. Bryant 1937-4-10 8506 Orange Rancho Santa Ana, Santa Ana Canyon, along road & roundtop to Horseshoe Bend. 244 Comment
  RSA535962  Calochortus catalinae Fred M. Roberts, Carol Roberts 1989-4-7 4261 Orange Aliso-Wood Canyons Regional Park: Upper Wood Canyon, 0.6km NW Moulton Peak. 131 Comment
  RSA542334  Calochortus catalinae Fred M. Roberts 1988-4-10 3918 Orange Lomas De Santiago: Loma Ridge, Lower Santiago Canyon drainage, 1.1kilometer NNW Bolero Lookout. 451 Comment
  RSA582819  Calochortus catalinae Mark Elvin, Adrian Wolf 1995-6-15 56 Orange Crystal Cove State Park, back country: Moro Canyon. 61 Comment
  RSA649058  Calochortus catalinae D. E. Bramlet 2000-4-17 2987 Orange West of Blind Canyon and north of Irvine Park and SW of the MDW [Metropolitan Water District] access road. 220 Comment
  RSA741482  Calochortus catalinae R. E. Riefner 2008-4-20 8 -66 Orange On Loma Ridge, near city of Irvine, E side of Hicks Haul Rd., Irvine Ranch Reserve, Management Area 11. Comment
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Feb 2 2011
  RSA749289  Calochortus catalinae Fred M. Roberts 1999-4-2 5167 Orange Lomas de Santiago: ridge between Limestone Cyn. and Santiago Creek wash, 0.7 km W Silverado Sch. and 4.3 km NNW Bolero Lookout. 330 Comment
  RSA749297  Calochortus catalinae Fred M. Roberts 1999-4-21 5183 Orange Lomas de Santiago: Loma Ridge, ridges north of Dripping Springs Cyn., 1.5 km W Silverado Sch. and 4.8 km NNW Bolero Lookout. 365 Comment
  UCR191243  Calochortus catalinae A. C. Sanders 2008-4-29 35136 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  CAS-BOT-BC483374  Calochortus invenustus Le Roy Abrams 1901-6-15 1848 Orange Summit of Santiago Pk. Comment
  UCR192071  Calochortus splendens A. C. Sanders, Fred M. Roberts 2008-5-6 35247 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  CAS-BOT-BC492700  Calochortus splendens Gale Sphon 1959-5-2 325 Orange Between Upper and Lower San Juan Camps, Cleveland National Forest Comment
  CAS-BOT-BC492701  Calochortus splendens Philip A. Munz 1949-5-26 13371 Orange Skyline Drive, at head of Sierra Canyon; Santa Ana Mountains 762 Comment
  UC284975  Calochortus weedii P. A. Munz 1923-6-14 7104 Orange trail from Glen Ivy to Santiago Peak; Santa Ana Mts. 914 Comment
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Apr 1 2013
  CAS-BOT-BC132658  Calochortus weedii var. intermedius L. R. Abrams 1901-6-1 1802 Orange Trabuco [Canon] Canyon Comment
  RSA725577  Calochortus weedii var. intermedius Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6537 Orange Upper Fremont Canyon, 5.2km ENE Irvine Lake Spillway and 2.0km WNW Hidden Ranch. 673 Comment
  RSA734897  Calochortus weedii var. intermedius A. C. Sanders, Joshua M. Brokaw 2008-5-28 35427 Orange Peninsular Range; Santa Ana Mtns.: upper Weir Canyon, along old dirt road west of Eastern Transportation Corridor, 1.65 mi. east of south end of Walnut Cyn Reservoir. 372 Comment
  RSA746523  Calochortus weedii var. intermedius R. E. Riefner 2008-6-3 8 -141 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, E fork Fremont Canyon, Black Star SCE Rd. 641 Comment
  RSA749648  Calochortus weedii var. intermedius D. E. Bramlet 2008-6-3 4288 Orange Upper Borrego Cyn, 215 SE of the access road and 1.35km west of Santiago Cyn Rd 435 Comment
  RSA773557  Calochortus weedii var. intermedius Fred M. Roberts 2008-6-3 7027 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.5 km NE of Rattlesnake Reservoir spillway and 2.6 km ENE Bee Peak 258 Comment
  SEINET3885376  Calochortus weedii var. intermedius D. Bramlet 1994-6-2 2378 Orange San Joaquin Hills. On ridgeline north of Little Sycamore Canyon. The site is locate 244 m NE of Little Sycamore Canyon and 1.3 km west of Laguna Cyn. Road. Laguna Beach 7.5 USGS quadrangle 37 19 160m. N X 4 29 160m E.; 0 165 Comment
  UCR112937  Calochortus weedii var. intermedius R. E. Riefner Jr. 2000-6-26 20- 580 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, along dirt road running N and west of Black Star Cyn. Road at powerline tower 631 Comment
  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
  UCR133200  Calochortus weedii var. intermedius Adrian Wolf 2000-6-19 462 Orange Santa Ana Mtns., North Ranch Policy Plan Area, 'panhandle' south of Black Star Canyon, east of Black Star Road, north of Baker Canyon 396 Comment
  UCR160851  Calochortus weedii var. weedii Mark S. Brunell 1991-7-4 s.n. Orange Peninsular Range; Santa Ana Mtns., Hwy 74 c. 3 miles east of San Juan Hot Springs 427 Comment
  CDA25245  Calycadenia tenella A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35323 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, 0.3 mile west of Eastern Transportation Corridor (Highway 241) and 1.45 miles east of south end of Walnut Canyon Reservoir. Comment
  UCR193067  Calycadenia tenella A. C. Sanders, T. B. Salvato 2008-5-13 35338 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
  UCR215290  Calyptridium monandrum Fred M. Roberts, D. E. Bramlet 2008-5-13 6954 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  UCR131876  Calystegia macrostegia J. Mallory, V. McCoy 1995-7-3 6454- 129 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. NE of confluence w/ Santiago Canyon Wash; north of Irvine Lake. 300 Comment
  LA50068  Calystegia macrostegia subsp. intermedia C. B. Wolf; 1931-3-6 1865 Orange 2 mi. from Orange County Park on the road to Anaheim 152 Comment
Read comments
Feb 5 2015
  SD181588  Calystegia occidentalis subsp. fulcrata Valerie Soza, LeRoy Gross 1999-6-7 488 Orange Santa Ana Mountains, west side of Modjeska Peak, along Main Divide Road. Open west-facing steep slope, on upper side of dirt road. 1448 Comment
  JEPS47844  Calystegia sepium subsp. binghamiae Frank W. Peirson 1926-9-26 7086 Orange Wintersberg. Comment
  IRVC980  Calystegia sepium subsp. sepium J. Pierce 1965-4-17 Orange Laguna Canyon. Laguna Beach Comment
  SD181587  Calystegia soldanella Valerie Soza, K Clark, L Gross, W Miller, F Roberts, G Wallace 2001-4-4 1114 Orange Anaheim Bay, Seal Beach National Wildlife Refuge; Seal Beach quad. Coastal sand dunes. 3 Comment
  UCSB8575  Calystegia soldanella Haller, Norman 1953-4-25 Orange U.S. 101, 2 miles S of Huntington Beach Comment
  SEINET7126140  Calystegia soldanella N. J. Hartke 1953-4-2 13 Orange Balboa Beach Comment
  RSA0013578  Camissonia D. E. Bramlet 2008-3-26 4120 Orange Bee Canyon. Bowerman landfill site. 202m S of the Bee Cyn. Access Road, 151m west of landfill entrance. Comment
  UCR118679  Camissonia A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23341 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  UCR193261  Camissonia A. C. Sanders, Fred M. Roberts 2008-6-17 35521 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 230 Comment
  RSA5801  Camissonia bistorta Carl B. Wolf 1932-6-28 s.n. Orange Cypress, Bryant Ranch near Long Beach, about middle of western boundary of 4 acre Valencia Orange Grove at Bryant Avenue and Hansen Road. 9 Comment
  UCR190975  Camissonia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35002 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
  RSA759152  Camissonia californica Robt. Allen, Lori Whalen 2008-7-5 s.n. Orange Dry foothills along a SW-facing ridge, slong Santiago Truck Trail, 0.5 air miles E of USPF Forest Gate at Modjeska Grade Road. Comment
  RSA585184  Camissonia cheiranthifolia subsp. cheiranthifolia D. Atwood 1993-3-27 17699 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  HSC16447  Camissonia cheiranthifolia subsp. suffruticosa B. Francis 1964-5-2 43 Orange Newport Beach Comment
  POM3332  Camissonia cheiranthifolia subsp. suffruticosa D. L. Crawford 1916-7-28 s.n. Orange Laguna Beach Region, Abalone Pt. Comment
  RSA5292  Camissonia cheiranthifolia subsp. suffruticosa B. D. Stark 1933-1-17 1757 Orange Dana Point. 15 Comment
  RSA550611  Camissonia hirtella Fred M. Roberts, Carol A. Roberts 1989-4-20 4302 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
  RSA588658  Camissonia hirtella Fred M. Roberts, Carol A. Roberts 1990-5-23 4649 Orange Santa Ana Mtns.: West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5 km SE Los Pinos Peak. 756 Comment
  UCR191366  Camissonia hirtella A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34624 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
  UCR192491  Camissonia hirtella A. C. Sanders, Fred M. Roberts 2008-3-25 34558 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA539394  Camissonia ignota Fred M. Roberts, Carol A. Roberts 1988-6-2 4033 Orange Santa Ana Mountains: Silverado Canyon. Maple Springs Truck trail. 4.3 km above gate, 1.0 km WSW Bald Peak. 817 Comment
  UCR144136  Camissonia intermedia Scott D. White 2003-3-21 8826 Orange Peninsular Range/Santa Ana Mtns, Foothills [above] Rancho Mission Viejo; E-facing slopes above an unnamed tributary to San Juan Creek 183 Comment
  RSA542490  Camissonia micrantha Fred M. Roberts, T. Sholars, B. Stechmeyer 1988-3-29 3880 Orange Santa Ana Mountains: Hot Springs Canyon, 0.5 km by road north Hwy 74, 0.9 km ESE Juan Rancho Survey Marker. 223 Comment
  RSA733639  Camissonia micrantha R. H. McArthur 1934-5-19 s.n. Orange Trobuca Canyon. Comment
  UCR209364  Camissonia robusta Fred M. Roberts, Linda Farley 2008-3-28 6830 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  RSA509  Camissonia strigulosa J. T. Howell 1928-4-7 900 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  CAS-BOT-BC160453  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange Sunset Beach Comment
  UC635392  Camissoniopsis cheiranthifolia subsp. suffruticosa H. L. Mason 1926-4-25 2918 Orange 5 mi s Laguna Comment
  RSA759275  Cannabis sativa Robt. Allen, Reginald I. Durant 2008-5-9 s.n. Orange Silverado Canyon, 1.6 road miles EENE above Maple Springs Forest Gate, between Lost Woman Canyon and Spruce Canyon. 766 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
  RSA484624  Cardamine californica var. integrifolia E. Crow 1929-4-9 305 Orange Corona Skyline road, Santa Ana Mts. Comment
  UCR237835  Cardamine flexuosa Mark A. Elvin 2003-2-2 2298 Orange South Coast, UC Irvine Arboretum, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 17 Comment
  JEPS53320  Cardaria draba Ethelbert Johnson 1931-5-16 Orange Santa Ana Comment
  RSA752304  Cardionema ramosissimum Fred M. Roberts, Eliza Maher 2008-3-26 6794 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UC671794  Cardionema ramosissimum H. F. Copeland 1938-6-28 Orange hills back of Laguna Beach Comment
  CAS-BOT-BC282975  Carduus pycnocephalus Steve Boyd; Tim Ross 1992-5-19 7427 Orange S Santa Ana Mountains, San Mateo Canyon Wilderness Area. W edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon 457 Comment
  CAS-BOT-BC118496  Carex praegracilis Helen D. Geis 1902-1-1 504 Orange Near Santa Ana Comment
  CAS-BOT-BC118503  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Santa Ana Comment
  RSA735747  Carex praegracilis A. C. Sanders, Fred M. Roberts 2008-6-17 35496 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff s Training Facility, just east of Hwy 241 280 Comment
  UC212128  Carex praegracilis I. M. Johnston 1918-5-5 1890 Orange El Toro 76 Comment
  CAS-BOT-BC118494  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Santa Ana, Peat lands Comment
  UCR174019  Carex spissa A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33049 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
  UC1618051  Carex triquetra Donald G. Nelson 1935-4-6 254 a Orange San Juan Canyon; about 200-300 ft below main hwy, about 4 mi from summit, e of San Juan Capistrano Comment
  POM771  Carpobrotus chilensis D. L. Crawford 1916-8-1 s.n. Orange Aliso Point Comment
  UCD96837  Carpobrotus chilensis Gordon Pilone 1961-3-14 110 Orange Little Corona Del Mar. 30 Comment
  UCR19134  Carpobrotus chilensis John C. Roos 1937-2-23 1348 Orange South Coast, Laguna Beach Comment
  HSC20510  Castilleja affinis S. M. Clapp 1966-4-7 16 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  RSA588724  Castilleja affinis Fred M. Roberts 1990-5-7 4606 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  RSA707  Castilleja affinis J. T. Howell 1927-6-2 11 Orange Sandstone Ridge, Botany Garden, RSA. 152 Comment
  UCR106285  Castilleja affinis B. G. Pitzer, M. Georgiady 1997-4-5 3075 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  UCR150610  Castilleja affinis Scott D. White 1997-5-6 5044 Orange Peninsular Ranges; Santa Ana Mountains, Lomas de Santiago. Santiago Canyon area: Ridgetop road N and west of Bolero Lookout 488 Comment
  UCR228782  Castilleja affinis Dick Newell, Don Millar 2011-5-3 143 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  JEPS21372  Castilleja affinis subsp. affinis Milo S. Baker 1958-5-20 13304 Orange Newport Bay Comment
  RSA658309  Castilleja angustifolia Steve Teh, Marie Gabbard 1994-4-28 18 Orange Modjeska Grade Rd. 1/2 mile back on fire rd. Comment
  RSA732253  Castilleja exserta A. C. Sanders, Fred M. Roberts 2008-4-22 35039 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  HSC20876  Castilleja exserta subsp. exserta C. L. Hitchcock 1966-3-15 24134 Orange 1/2 mi. E of Brea Comment
  UC718040  Castilleja exserta subsp. exserta P. C. Everett 1935-4-27 Orange 1 mi w Atwood (Jack Johnson property) 152 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
  RSA400600  Castilleja foliolosa H. L. Bauer 1929-4-20 s.n. Orange Trabuco Canon. Comment
  RSA400601  Castilleja foliolosa P. A. Munz, R. D. Harwood 1920-4-24 3745 Orange Sierra [Freemont] Canyon, Santa Ana Mts. 366 Comment
Read comments
Sep 25 2011
  UCR241667  Castilleja foliolosa Dick Newell, Judy Booth 2013-6-2 333 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd., 2.24 miles NE of Flores Peak 645 Comment
  UCSB45138  Castilleja foliolosa Woicik, Richard 1976-5-21 Orange Modjeska Canyon; near fire station Comment
  RSA429527  Caulanthus heterophyllus M. B. Dunkle 1935-3-3 4351 Orange San Juan Canyon. 457 Comment
  RSA702801  Caulanthus heterophyllus D. E. Bramlet, Fred M. Roberts 2003-5-1 3429 Orange Donna O Neill Reserve. The site is 412m N of Gato Cyn. and 107m W of Cristianitos Rd. 134 Comment
  RSA734337  Caulanthus heterophyllus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34623 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 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
  RSA0121892  Caulanthus lasiophyllus D. E. Bramlet 2008-3-31 4134 Orange 305m E of Upper Hicks Haul Rd, in Trib to Limestone Cyn., 1km S of Santiago Cyn. Rd. 311 Comment
  UC1070888  Ceanothus R. St. John 1931-3-17 196 Orange N of Sierra Peak 609 Comment
  RSA0054976  Ceanothus Keith E. Hoffmaster 1934-7-15 108 Orange Santa Ana mts. (Santiago can). Comment
  CAS-BOT-BC48492  Ceanothus crassifolius Helen D. Geis 1902-4-1 s.n. Orange Santiago Canyon Comment
  RSA542417  Ceanothus crassifolius Fred M. Roberts 1988-3-15 3854 Orange Rancho Mission Viejo: Verdugo Canyon, 0.8 km SE Lucas Survey Mark. 247 Comment
  SD181362  Ceanothus crassifolius Paul Shirokawa 1998-5-15 37 Orange Cleveland National forset - Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Rd 960 Comment
  UC1281316  Ceanothus crassifolius H. E. McMinn 1935-6-22 3921 Orange w Corona; Santa Ana Mts. Comment
  RSA16493  Ceanothus integerrimus Percy C. Everett 1935-6-18 7214 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  RSA708282  Ceanothus megacarpus Scott D. White, Jennifer H. Jones 2005-3-31 10855 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  RSA734968  Ceanothus megacarpus A. C. Sanders, Fred M. Roberts, A. O'Neal, D. E. Bramlet 2008-5-9 35301 Orange Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  SD134389  Ceanothus megacarpus Craig Reiser 1987-6-26 Orange Anaheim, Wallace Ranch near Wier Canyon Road Comment
  CAS-BOT-BC50507  Ceanothus megacarpus var. megacarpus John Thomas Howell 1927-6-26 2609 Orange Claymine Canyon, n. Santa Ana Mts. 701 Comment
  RSA542419  Ceanothus megacarpus var. megacarpus Fred M. Roberts 1988-3-9 3839 Orange Laguna Niguel: Niguel Hill, Pacific Island Dr., 1.6km ENE Aliso Peak. 268 Comment
  RSA12928  Ceanothus oliganthus Carl B. Wolf 1935-4-7 6318 Orange San Juan Canyon, Ortega Hwy, 2 miles east Orange County. 762 Comment
Read comments
Oct 7 2013
  UCR234152  Ceanothus oliganthus Dick Newell, Judy Booth 2012-3-30 239 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest 258 Comment
  RSA0054960  Ceanothus oliganthus Keith E. Hoffmaster 1936-4-5 707 Orange Black Star can., Santa Ana Mts. Comment
  SD255267  Ceanothus oliganthus Robert F. Thorne, E. W. Lathrop 1977-5-18 49760 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail. Comment
  RSA30495  Ceanothus spinosus L. R. Abrams 1901-6-16 1854 Orange Trabuco Canon. Comment
  SD41970  Ceanothus spinosus Darley F. Howe 1947-4-29 Orange Santa Ana Mts. Comment
  CAS-BOT-BC402189  Ceanothus tomentosus R. F. Thorne; E. W. Lathrop; W. Wisura 1977-4-27 49676 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  PASA2518  Ceanothus tomentosus Frank W. Peirson 1922-5-19 Orange Small canyon heading eastward from the Santa Ana Canyon at 400 ft. Comment
  UC1281278  Ceanothus tomentosus H. E. McMinn 1935-6-22 3927 Orange w Covina; Santa Ana Mountains, w of Covina Comment
  UCR263637  Ceanothus tomentosus Ed Kentner 2012-5-22 139 Orange Santa Ana Mountains, Irvine Ranch Conservancy, Fremont Canyon Reserve north side of windy Ridge Road 500 Comment
  RSA1041  Ceanothus tomentosus var. olivaceus J. T. Howell 1927-6-26 144 Orange Claymine Canyon near Sierra Peak. 213 Comment
  SD143577  Centaurea melitensis R. D. Goeden, D. W. Ricker 1965-6-21 Orange Dana Point 75 Comment
  UCR192075  Centaurea melitensis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35276 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA184117  Centaurea melitensis I. L. Wiggins 1966-5-25 20663 Orange Along Nutwood Lane S margin of campus of CSCF, Fullerton Comment
  UCSB48218  Centaurea melitensis Roberts, Fred 1981-6-20 Orange Dana Point: 0.6km NE Dana Hills High School 67 Comment
  UCR130341  Centaurea repens A. C. Sanders, Mark A. Elvin 2003-10-12 27321 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  IRVC27937  Centaurea repens A. C. Sanders, Mark A. Elvin 2003-10-12 27321 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  POM13256  Centaurea repens E. Johnson 1922-6-12 s.n. Orange Greenville. Comment
  RSA699754  Centaurium venustum Fred M. Roberts, David Bramlet 2003-6-6 5886 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.7km SW int. Cristianitos and TRW Rds. and 0.23km W of SDG&E substation. 94 Comment
  RSA710405  Centaurium venustum Fred M. Roberts 2005-10-3 6293 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
  UCR230837  Centaurium venustum Dick Newell, Judy Booth 2011-6-26 195 Orange Peninsular Range; Santa Ana Mtns., Long Canyon Rd., NW of Hwy 74, Cleveland National Forest 965 Comment
  UCR237924  Centaurium venustum Dick Newell, Don Millar, Shaina Oagarile 2012-6-19 275 Orange South Coast, Newport Beach, Buck Gully in San Joaquin Hills, 0.43 mi. SW of San Joaquin Trailhead 201 Comment
  RSA716092  Centromadia parryi Fred M. Roberts 2006-7-5 6349 Orange Bolsa Chica Ecological Preseve: Bolsa Chica Mesa, 0.8km SSW Chica Survey Marker and 1.4km SE jct. Pacific Coast Hwy. & Warner Ae. 7 Comment
  CAS-BOT-BC288844  Centromadia parryi subsp. australis David D. Keck 1932-9-30 1897 Orange Ca 5 miles S of Santa Ana on road to Newport Beach Comment
  SD80940  Centromadia parryi subsp. australis James Henrickson 1970-7-25 5071 Orange 3 miles northeast of Huntington Beach at far northern end of Bolsa Chica Salt Marsh near pasture; along channel south of Flood Control channel (mak 10/07) 0 Comment
  UC897740  Centromadia parryi subsp. australis Louis C. Wheeler 1932-6-25 849 Orange 5 mi w Santa Ana 22 Comment
  RSA739229  Cercocarpus betuloides Keith E. Hoffmaster 1932-4-17 502 Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  UCR100180  Cercocarpus betuloides Scott D. White 1996-12-20 4637 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  CAS-BOT-BC142125  Cercocarpus betuloides var. betuloides Munz; Street; Williams 1919-5-3 2626 Orange Santa Ana River Canyon Comment
  SD132983  Cestrum nocturnum A. C. Sanders 1990-10-6 10187 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1. 0 Comment
  CAS-BOT-BC279501  Chaenactis artemisiifolia R. K. Brummitt 1998-5-23 19996 Orange San Juan Canyon, 22 km NE of San Juan Capistrano on Rte. 74 300 Comment
  CLARK-A1528-1693  Chaenactis artemisiifolia John C. Roos 1965-6-16 Orange Dana Point Comment
  POM49175  Chaenactis artemisiifolia L. R. Abrams 1901-6-15 1808 Orange Trabuco Canyon Comment
  RSA734595  Chaenactis artemisiifolia A. C. Sanders, Fred M. Roberts 2008-5-6 35224 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  SD225727  Chaenactis artemisiifolia R. K. Brummitt 1998-5-23 19996 Orange 22 km NE of San Juan Capistrano on Rte. 74; dry roadisde in rocky canyon 299 Comment
  CAS-BOT-BC279499  Chaenactis artemisiifolia Steve Boyd; Tim Ross 1992-5-20 7454 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09) 457 Comment
  RSA587870  Chaenactis artemisiifolia Fred M. Roberts 1990-5-16 4630 Orange Santa Ana Mtns: Small canyon along SE side of Irvine Mesa, 3.5 km N Bolero Lookout 396 Comment
  UCR93939  Chaenactis glabriuscula B. G. Pitzer 1996-4-30 2805 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA695673  Chaenactis glabriuscula L. C. Hull 1934-4-29 s.n Orange Trabuco Canyon Comment
  UC536896  Chaenactis glabriuscula var. glabriuscula Lawrence M. Booth 1932-5-18 1056 Orange Newport Bay Comment
  POM6049  Chaenactis glabriuscula var. lanosa L. R. Abrams 1903-4-13 3254 Orange Buena Park Comment
  UCR142915  Chaenactis glabriuscula var. lanosa L. R. Abrams 1903-4-13 3254 Orange South Coast, Buena Park Comment
  HSC25233  Chamaesyce albomarginata R. W. Spjut 1972-2-22 2231 Orange Santa Ana Mtns., Cleveland National Forest, along Hwy. 74 305 Comment
  RSA600260  Chamaesyce albomarginata L. C. Wheeler 1947-5-4 6478 Orange 1/2 mi. southwest of Peralta Hills, at Jefferson St. and Santa Ana Canyon Rd. Comment
  RSA734740  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
  RSA265770  Chamaesyce maculata J. C. Roos 1937-5-21 2066 Orange Grounds of St. Joseph's Hospital, Orange. 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
  IRVC850  Chamomilla suaveolens L. Burns 1965-4-6 Orange Comment
  IRVC26749  Chasmanthe floribunda Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3169 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA685788  Cheilanthes J. F. James 1879-4-11 212 Orange San Juan Capistrano Comment
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Nov 22 2013
  UCD137350  Cheilanthes newberryi Beecher Crampton 1963-5-7 6788 Orange Santa Ana Mountains, Lower San Juan Canyon, ca. 11 miles northeast of San Juan Capistrano, State Hwy. 74. Comment
  IRVC19707  Cheilanthes newberryi Karlin G. Marsh 1983-7-14 Orange Laguna Canyon between Camarillo and Laural Canyons on Irvine Ranch; 3 small clusters on large outcrop beneath narrow ledge. San Joaquin Hills Comment
  RSA685772  Cheilanthes newberryi T. R. Pray 1961-2-14 1824 Orange San Juan Canyon along Ortega Hwy, near bridge just west of Cleveland National Forest Comment
  CAS-BOT-BC426293  Chenopodium album Ira L. Wiggins 1966-5-25 20664 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton Comment
  RSA696210  Chenopodium album Keith E. Hoffmaster 1927-5-18 s.n. Orange Santa Ana. Comment
  RSA731952  Chenopodium ambrosioides Fred M. Roberts 2007-12-12 6706 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
  UCR192993  Chenopodium berlandieri A. C. Sanders, Fred M. Roberts 2008-5-6 35218 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCR210369  Chenopodium berlandieri T. B. Salvato, Billy Deane 2006-10-16 1939 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  RSA478480  Chenopodium californicum Albert J. Perkins 1909-7-4 s.n. Orange Arch Beach. Canon near beach. Comment
  UCSB21071  Chenopodium californicum Merrill, Roy 1965-4-11 Orange 11.5 miles on State Highway 74 east of 101, Santa Ana Mtns. 274 Comment
  RSA734918  Chenopodium multifidum A. C. Sanders, Fred M. Roberts 2008-6-17 35476 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA751792  Chenopodium murale A. C. Sanders, Fred M. Roberts 2008-7-3 35686 Orange upper Weir Canyon, along Windy Ridge Rd. at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  UCR222390  Chenopodium murale Mark A. Elvin 2003-1-26 2244 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  SEINET7067538 Image available Chenopodium pumilio A. G. Vestal 1947-6-12 s.n. Orange Santa Ana River Wash northwest of Orange. Coordinate datum: NAD27. UTM Zone 11, 418667mE, 3739612mN. Comment
  CLARK-A1528-976  Chenopodium rubrum Patricia A. Andrews 1975-6-26 5926 Orange Capistrano Bay Beach 9 Comment
  UC729551  Chlorogalum pomeridianum var. pomeridianum Carl B. Wolf 1932-7-2 3828 Orange hillside 1/2 mi above La Vida Springs; Carbon Canyon 243 Comment
  UC1618023  Chorizanthe Donald G. Nelson 1935-4-6 250 Orange e. San Juan Capistrano (and just s. of boundary of Cleveland Nat'l Forest) Comment
  RSA562821  Chorizanthe fimbriata Steve Boyd, Tim S. Ross 1992-5-20 7474 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
  CAS-BOT-BC252773  Chorizanthe parryi var. fernandina Helen D. Geis 1902-1-1 s.n. Orange Unspecified Comment
  RSA749845  Chorizanthe procumbens D. Bramlet, Jim Harrison 2008-3-28 4132 Orange Bee Canyon. Bowerman landfill site.925 m S of the Bee Cyn. access road, 352 m W of the landfill entrance. Comment
  UCR121046  Chorizanthe procumbens D. E. Bramlet 1983-5-28 1388 Orange South Coastal Plains, Dana Point, 154 m SW of Pacifc Coast Highway 73 Comment
  UCR158021  Chorizanthe procumbens Adrian Wolf 1998-5-15 290 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  RSA587871  Chorizanthe procumbens Fred M. Roberts, Carol A. Roberts 1990-5-16 4629 Orange Santa Ana Mts.: small canyon southeast side of Irvine Mesa, 3.5 km N Bolero Lookout. 396 Comment
  CAS-BOT-BC255250  Chorizanthe staticoides Le Roy Abrams 1901-6-1 1807 Orange Mt. Santiago 914 Comment
  CAS-BOT-BC255251  Chorizanthe staticoides P. C. Everett 1935-4-29 6711 Orange Santa Ana Canyon, 7/10 mile W of Esperanza 152 Comment
  RSA392684  Chorizanthe staticoides Louis C. Wheeler 1932-6-25 856 Orange Newport Bay. 3 Comment
  RSA587875  Chorizanthe staticoides Fred M. Roberts 1990-5-10 4626 Orange Rancho Mission Viejo: Lower Talega Canyon, TRW Lease Holding, c.a. 4.8km NE Clemente Survey Marker. 122 Comment
  UC1175013  Chorizanthe staticoides E. K. Balls 1958-6-26 23814 Orange Comment
  UCR194555  Chorizanthe staticoides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35328 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
  UCR37797  Chorizanthe staticoides Steve Boyd 1981-5-13 s.n. Orange South Coast, Pelican Hill, Irvine Ranch Property, San Joaquin Hills south of Corona del Mar 218 Comment
  CDA7383  Chrysanthemoides monilifera A. C. Sanders, Mark A. Elvin 2003-10-12 27324 Orange Southern Coastal Slope; Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. Comment
  UCR93937  Chrysanthemum coronarium B. G. Pitzer 1996-4-30 2793 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA94926  Cirsium arvense F. W. Peirson 1924-10-19 5248 Orange Wintersberg. Comment
  UC537119  Cirsium brevistylum Lawrence M. Booth 1932-5-15 1199 Orange 1/2 mi from Pacific Ocean Comment
  UCR190970  Cirsium occidentale A. C. Sanders, Fred M. Roberts 2008-4-22 35052 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  RSA821  Cirsium occidentale var. californicum J. T. Howell 1927-6-26 212 Orange Claymine Canon near Sierra Peak. [canyon] 244 Comment
  CAS-BOT-BC172422  Clarkia bottae Carl B. Wolf 1932-7-2 3825 Orange Carbon Canyuon, 1/8 mi. below La Vida Springs 213 Comment
  POM6345  Clarkia bottae P. A. Munz, L. T. Street, G. Williams 1919-5-3 2647 Orange Santa Ana River Canyon. Comment
  RSA500  Clarkia bottae J. T. Howell 1927-6-17 155 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR3194  Clarkia deflexa Chuck Elliott 1964-5-15 s.n. Orange 0.25 mi [west of] past [Riverside] county line on Hwy 91 toward beach into Orange County 244 Comment
  RSA688983  Clarkia purpurea Fred M. Roberts, D. E. Bramlet 2003-4-10 5641 Orange Rancho Mission Viejo: Donna O Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  UCSB48212  Clarkia purpurea subsp. quadrivulnera Roberts, Fred 1981-5-3 Orange Santa Ana Mtns; Hot Springs Cyn; 0.8 km by road N of San Juan Guard Station 256 Comment
  RSA448336  Clarkia rhomboidea Albert J. Perkins 1914-6-14 s.n. Orange Santiago Peak trail 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
  UCR98130  Clarkia similis George K. Helmkamp, E. A. Helmkamp 1997-4-24 1657 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 1.6 mi. SE of Ortega Hwy (Calif. Hwy 74) on Rd. 7-S14 549 Comment
  CAS-BOT-BC233841  Claytonia parviflora subsp. parviflora Helen D. Geis 1904-4-1 758 Orange Silverado Canyon, Santa Ana Mts. Comment
  UC1178494  Clematis lasiantha Peter Kamb 1948-6-19 1106 b Orange s.e. slope Santiago Peak; Santa Ana Mts., Orange-Riverside Counties 1219 Comment
  UCR242865  Clematis ligusticifolia Dick Newell, Judy Booth 2013-7-28 336 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, 2.25 miles due east of Lower Maple Springs gate 887 Comment
  LA207215  Clematis pauciflora W. E. Pequegnat; August 1937 58 Orange Santa Ana Mts Comment
  UCR215281  Cleome isomeris Fred M. Roberts 2008-3-27 6812 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Outlook 1, 0.5 km west of Marine Institute, Dana Point Harbor 45 Comment
  CAS-BOT-BC180992  Cneoridium dumosum Cecil Hart 1928-5-27 s.n. Orange Laguna Beach Comment
  LA208484  Cneoridium dumosum B. Lower; 1954-4-3 Orange Dry hill behind Laguna Comment
  UCSB48359  Cneoridium dumosum Roberts, Fred 1982-6-30 Orange Laguna Niguel: Pacific Island Dr., Niguel Hill, 2.0km SE Aliso Peak; 1.3km E Bench Mark 133 39 Comment
  RSA587867  Collinsia heterophylla Fred M. Roberts Jr. 1990-5-22 4635 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  CAS-BOT-BC402182  Comarostaphylis diversifolia subsp. diversifolia R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49607 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  SD134460  Comarostaphylis diversifolia subsp. diversifolia Craig Reiser 1992-6-12 Orange Laguna Niguel, west-facing slope, NE corner of intersection of Crown Valley Parkway and Pacific Island Drive Comment
  HSC21476  Conium maculatum S. M Clapp 1966-4-10 40 Orange Just S of Brea Canyon Rd., 1 mi N of Brea, Union Oil property 61 Comment
  IRVC29723  Conium maculatum Mark A. Elvin, Barry S. Nerhus 2006-11-4 5254 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  SD127479  Conium maculatum Reid Moran, Gordon Marsh and Jack Reveal 1977-6-13 24237 Orange Willow Canyon, tributary of Laguna Canyon 124 Comment
  UCR97574  Conium maculatum B. G. Pitzer 1997-4-15 3130 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
  RSA470554  Conium maculatum Albert J. Perkins 1914-6-20 s.n. Orange Santa Ana. Comment
  RSA0099309  Convolvulus althaeoides E. L. Paddock 1941-6-5 116 Orange Along Santa Fe RR, 150 ft W of Placentia Ave. Comment
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Jan 4 2020
  IRVC968  Convolvulus arvensis E. McRae 1965-4-3 Orange Costa Mesa Comment
  POM201722  Convolvulus arvensis L. M. Booth 1932-5-26 1126 Orange Newport Bay Comment
  RSA653183  Convolvulus arvensis David Barrios 1991-5-1 16 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle., (117 deg. 45' 00'' +4 28 / 33 deg. 52' 37'' + 37 51.5). 365 Comment
  RSA0127343  Convolvulus simulans Fred M. Roberts 2016-4-29 8046 Orange Lomas de Santiago: north of Santiago Canyon Road, southwest slope of hill marked 1332 on topo maps, just west of Irvine Lake, 1.6 km S Irvine Lake dam spillway and 0.8 km NW Irvine Lake Park. 335 Comment
  UCR85393  Convolvulus simulans H. Camp 1995-4-14 s.n. Orange Peninsular Range; Santa Ana Mtns., Caspers Park, 7 mi. east of San Juan Capistrano, west of Bell Creek 183 Comment
  CAS-BOT-BC285928  Conyza bonariensis Ira L. Wiggins 1965-11-5 20321 Orange Near corner of Dowling St. and Crowther Ave., Placentia Comment
  UCR116012  Conyza bonariensis George K. Helmkamp, E. A. Helmkamp 2000-10-18 6229 Orange Newport Bay, South side of the back bay. 6 Comment
  RSA788803  Conyza canadensis R. F. Thorne 1977-11-21 49983 -b Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  RSA234511  Conyza coulteri James Henrickson 1970-8-22 5297 Orange 2.5 miles NNW of Huntington Beach. 0 Comment
  RSA725587  Conyza floribunda Fred M. Roberts 2007-8-6 6561 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
  POM202727  Cordylanthus maritimus subsp. maritimus L. M. Booth 1932-7-19 1273 Orange Bolsas Marsh Comment
  RSA412315  Cordylanthus maritimus subsp. maritimus F. R. Fosberg 1930-7-10 S 3176 Orange Anaheim Landing. [Now Seal Beach, Orange County. Los Angeles Co. on label] 1 Comment
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Nov 5 2007
  SBBG68641  Cordylanthus maritimus subsp. maritimus M. N. Ackley -May-1929 Orange Sunset Beach Comment
  RSA0084752  Cordylanthus rigidus A. C. Sanders, Joshua M. Brokaw 2008-5-28 35428 Orange Peninsular Range; Santa Ana Mtns.: upper Weir Canyon, along old dirt road west of Eastern Transportation Corridor, 1.65 mi. east of south end of Walnut Cyn Reservoir (Black Star Canyon 7.5' Q.) 372 Comment
  UC284871  Cordylanthus rigidus subsp. setiger P. A. Munz 1923-9-7 7745 Orange Santiago Peak Santa Ana Mts. 1645 Comment
  RSA780826  Cordylanthus rigidus subsp. setiger Sandy Leatherman 2011-7-2 2011 -20 Orange Peninsular Ranges; Chino-Puente Hills region; 50 meters west of Carbon Canyon Road and Lions Canyon Road in Carbon Canyon in the City of Brea 274 Comment
  UCSB48241  Cordylanthus rigidus subsp. setiger Roberts, Fred 1981-7-21 Orange Santa Ana Mts.: 0.8km SE Blue Jay Camp Ground 934 Comment
  POM356004  Coreopsis californica M. B. Dunkle 1935-3-3 4345 Orange San Juan Canyon. 457 Comment
  POM4589  Corethrogyne filaginifolia D. L. Crawford 1916-7-28 s.n. Orange Abalone Point 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
  JEPS50151  Cornus sericea subsp. sericea Lawrence M. Booth 1932-7-19 1278 Orange Bolsas Creek Comment
  SD94964  Cotula australis J. Harry Lehr 1976-2-14 910 Orange Santa Anna Street north of State College Blvd., Anaheim. Comment
  UCR193017  Cotula australis A. C. Sanders, Mitch Provance 2008-5-20 35413 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  CAS-BOT-BC287220  Cotula australis Ira L. Wiggins 1966-2-12 20434 Orange N side of La Palma Ave near Harbor Blvd, Anaheim Comment
  CAS-BOT-BC287221  Cotula australis Ira L. Wiggins 1966-2-12 20439 Orange Orange grove on W side of State College Blvd, opposite Electra Way, Fullerton Comment
  UCR142748  Cotula coronopifolia C. B. Wolf 1932-3-8 2692 Orange South Coast, Sunset Beach, [Bolsa Chica] at southern city limits 2 Comment
  UCD130912  Cotula coronopifolia Ronni Stachelek; Bob Anderson 1995-3-23 50 Orange Newport Beach, Upper Newport Bay, Back Bay Drive, ca. 150 m. north of San Joaquin Drive. Comment
  UC1930991  Cotyledon orbiculata R. E. Riefner Jr. 2006-8-25 06 -407 Orange South Coast: Dana Point Harbor, Dana Point Harbor Dr. at Ensenada Pl. Comment
  UCR182817  Cotyledon orbiculata R. E. Riefner Jr. 2006-8-25 06- 407 Orange South Coast, Dana Point Harbor, Dana Point Harbor Dr. at Ensenada Pl. 13 Comment
  POM13643  Crassula aquatica P. A. Munz 1921-4-12 4479 -a Orange Laguna Beach. Dying pool, 1 mile N of Laguna 61 Comment
  IRVC25468  Crassula connata Fred M. Roberts 1987-4-21 3379 Orange Aliso Creek, Aliso Creek Bike Trail, 3.0km ENE Moulton Peak, Aliso Viejo 73 Comment
  RSA751982  Crassula connata Fred M. Roberts 2008-3-27 6803 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 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
  RSA0135553  Crassula connata var. connata David E. Bramlet 2003-3-14 3345 Orange Coastal Plains & Basins; South Coastal Plain region: Newport Beach. 30.5m west of Avocado & 183m W of McArthur Blvd & 190m N of the Newport Beach Library. 49 Comment
  SEINET6911850  Crassula connata var. connata W. P. Vestal, A. G. Vestal 1955-3-24 3452 Orange Trabuco Canyon about 5 miles east of El Toro. Comment
  UCR162199  Crassula tillaea Robert DeRuff 1995-1 476 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, bluff top above and southerly of San Joaquin Hills Road 91 Comment
  UCR215302  Crassula tillaea Fred M. Roberts 2008-3-27 6807 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west Marine Institute, Dana Point Harbor 75 Comment
  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
  RSA427  Croton californicus J. T. Howell 1927-6-6 47 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA700002  Croton californicus Minor Warne 1934-3-10 s.n. Orange Limestone Canyon Comment
  RSA794326  Croton californicus Justin M. Wood 2010-3-31 1443 Orange 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
  UC17567  Croton californicus C. W. Hamlin 1820-1 61 Orange Buena Park Comment
  UCSB48014  Croton setiger Roberts, Fred 1980-9-14 Orange Santa Ana Mtns.; San Juan Canyon, 0.6 km. SW Lower San Juan Picnic Ground; 1.9 km. WNW Sitton Peak 410 Comment
  RSA643  Cryptantha clevelandii J. T. Howell 1928-4-7 897 Orange Bee Canon, Rancho Santa Ana 152 Comment
  RSA747713  Cryptantha clevelandii Fred M. Roberts 2008-3-19 6782 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  UC484240  Cryptantha intermedia C. B. Wolf 1931-3-6 Orange 0.5 mi above Trabuco Oaks (w slope Santa Ana Mts.); Santa Ana Mts., Trabuco Canyon Comment
  UCR223434  Cryptantha intermedia Dick Newell, Don Millar 2011-2-8 052 Orange Peninsular Range; Santa Ana Mtns., MWD road overlooking Boy Scout Camp, just east of outdoor education property, 1.5 mi. NW (312 deg. ) of Irvine Lake dam 257 Comment
  UCR241913  Cryptantha intermedia Fred M. Roberts 2012-5-10 7563 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
  RSA543960  Cryptantha microstachys Steve Boyd, Orlando Mistretta 1991-5-9 6191 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA681022  Cryptantha microstachys Fred M. Roberts, D. E. Bramlet 2003-3-13 5584 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 207 Comment
  RSA0078870  Cryptantha muricata var. jonesii P. A. Munz 1923-6-14 7058 Orange Glen Ivy Trail to Santiago Peak. 1220 Comment
  POM201754  Cucurbita foetidissima L. M. Booth 1932-6-29 1227 Orange Newport Bay. Comment
  RSA0027425  Cucurbita foetidissima Fred M. Roberts 2013-7-18 7659 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
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Mar 6 2019
  UCR230825  Cucurbita foetidissima Dick Newell, Don Millar, Shara Harris 2011-6-21 186 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 207 Comment
  UCR209188  Cucurbita pepo A. C. Sanders, Fred M. Roberts 2008-9-18 36087 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  MACF020320  Cupressus Richard J. Ramirez 1974-11-3 D 3 Orange Collected about 8 mi. inland on Saddleback Canyon Rd., from Tucker Wildlife Sanctuary. Comment
  JEPS46558  Cupressus forbesii John Thomas Howell 1927-1-1 Orange near Sierra Peak; Santa Ana Mountains 701 Comment
  RSA12376  Cupressus forbesii C. B. Wolf, E. R. Johnson 1934-3-21 5578 Orange Santa Ana River, Santa Ana Canyon, 1/2 mi. S.W. of Mexican Houses, Rancho Santa Ana. Altitude 400 ft. 122 Comment
  RSA648664  Cupressus forbesii Richard E. Riefner 2000-8-3 20 -708 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and E of Windy Ridge main cypress forest 542 Comment
  RSA7200  Cupressus forbesii B. D. Stark 1933-3-17 4532 -D Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  RSA7204  Cupressus forbesii B. D. Stark 1933-3-17 4532 -G Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  UCR140975  Cupressus forbesii June Latting 1973-6-30 s.n. Orange Santa Ana Mountains, 2 miles south of Sierra Peak, on road toward Skyline Drive 732 Comment
  SEINET10531085  Cupressus forbesii Carl B. Wolf 1935-1-2 Wolf 2320 Orange Santa Ana Mts. Slopes of Sierra Peak W of Claymine Canyon along road to peak. Upper Sonoran:- Adenostoma, Cypress. Open N.W. slope, reddish sandstone. 670 Comment
  SEINET10531440  Cupressus goveniana David B. Dunn 1971-8-13 Dunn 18110 Orange Cultivated plants at Costa Mesa, California. Comment
  NY16664  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6279 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
  NY16673  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6278 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  LA29279  Cupressus macrocarpa Mary V. Hood; 1940-11-29 40- 193 k* a,b,c. Orange Laguna Comment
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Jan 12 2015
  RSA0014076  Cuscuta californica Fred M. Roberts 2008-5-27 7004 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., c.a. 0.2km beyond Hicks Cyn., Gate, 2.2km WNW Bee Peak, Irvine Ranch conservancy 213 Comment
  RSA409705  Cuscuta californica F. R. Fosberg 1931-6-21 5143 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA570  Cuscuta californica J. T. Howell 1927-6-3 24 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA70997  Cuscuta californica F. W. Peirson 1923-9-7 4038 Orange Trail from Trabuco Canyon to Santiago Peak 1296 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
  RSA708819  Cuscuta pentagona Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6170 Orange Bolsa Chica Salt Marsh: along Pacific Coast Highway, trail NW of parking area, c.a. 2.2km SE jct. Warner Street and 1.6km SE Chica Bench Mark. 2 Comment
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Jan 2 2017
  RSA70998  Cuscuta salina F. W. Peirson 1924-8-29 5080 Orange 2.5 miles from Balboa on road inland along creek. Comment
  RSA725468  Cuscuta subinclusa Fred M. Roberts, Megan Lulow 2007-7-30 6550 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  SD43529  Cuscuta subinclusa Philip A. Munz 1946-10-2 11555 Orange Santa Ana River bottom, Rancho Santa Ana. Comment
  UCR189303  Cuscuta subinclusa Fred M. Roberts, R. L. Allen 2007-9-28 6617 Orange Lomas de Santiago, above lower Santiago Canyon wash along Santiago Canyon Road just south of Irvine Mesa, 3.3 km N of Bolero Lookout 332 Comment
  UCR193783  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts 2008-7-3 35679 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR193793  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts 2008-7-3 35688 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  UCR194551  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35320 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  RSA528056  Cycloloma atriplicifolium A. C. Sanders 1990-10-6 10203 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Highway 1. 1 Comment
  UCR4614  Cynara cardunculus John Dean 1965-1 s.n. Orange Hwy between Corona Del Mar & Santa Ana 23 Comment
  CAS-BOT-BC190297  Cynodon dactylon Ira L. Wiggins 1965-9-26 20253 Orange In Carbon Canyon about 3.5 miles above its mouth. Comment
  IRVC29808  Cynodon dactylon Laura D. Lyons, Mark A. Elvin 2006-9-23 422 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  UCSC000021  Cynodon dactylon I. J. Condit 2008-7-20 s.n. Orange Los Alamitos Comment
  RSA603290  Cynosurus echinatus Tony Bomkamp, R. E. Riefner 1997-6-18 97 -202 Orange Hidden Valley Ranch, Black Star Canyon, Santa Ana Mountins 671 Comment
  RSA21058  Cyperus eragrostis Ramon Valverde 1938-8-4 9446 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA800024  Cyperus eragrostis Justin M. Wood 2011-6-28 4306 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. Just W of parking area. 25 Comment
  UC520019  Cyperus eragrostis Joseph Andorfer Ewan 1932-7-9 7985 Orange 4 mi. below Rincon; Santa Ana River Comment
  RSA161258  Cyperus erythrorhizos Peter H. Raven 1961-10-15 16852 Orange Santa Ana River at Anaheim Street Crossing 61 Comment
  CAS-BOT-BC114320  Cyperus esculentus Helen D. Geis 1902-9-1 s.n. Orange Ditch banks, Santa Ana. Comment
  CAS-BOT-BC114321  Cyperus esculentus Helen D. Geis 1902-9-1 561 Orange Ditch banks, Santa Ana. Comment
  RSA697521  Cyperus esculentus Minor Warne 1934-5-13 s.n. Orange Talbert Drainage. 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
  UCR258624  Cyperus involucratus Fred M. Roberts 2014-7-25 7885 Orange South Coast, SAN JOAQUIN HILLS: Upper Laguna Canyon, Laguna Lake 1 (Upper Laguna Lake), north basin, c.a. 5.1 kn ENE summit Signal Hill. Laguna Coast Wilderness Park 113 Comment
  CAS-BOT-BC114243  Cyperus laevigatus John Thomas Howell 1927-7-18 2791 Orange Moist sandy soil, Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  UC729960  Cyperus laevigatus Carl B. Wolf 1932-7-2 3814 Orange 1/8 mi. below La Vida Springs (Carbon Canyon); Carbon Canyon 213 Comment
  POM201904  Cyperus niger var. castaneus L. M. Booth 1932-7-19 1287 Orange Bolsas Marsh. Comment
  RSA450865  Cyperus odoratus Gordon Marsh, Karlin G. Marsh 1977-11-21 s.n. Orange Santa Ana Mountains: San Juan Hot Springs. Comment
  RSA725964  Cyperus odoratus R. E. Riefner 2005-10-27 05 -728 Orange South Coast: Huntington Beach, Huntington Central Park near Goldenwest St. 1 Comment
  UCSB56514  Cyperus odoratus Marsh, G.; Marsh, K. 1977-11-21 Orange Santa Ana Mts.; San Juan Hot Springs Comment
  UC729651  Dactylis glomerata Carl B. Wolf 1932-6-13 3715 Orange Fullerton; Rose Drive 53 Comment
  RSA790026  Datisca glomerata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49563 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCD169744  Datisca glomerata R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49563 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). 432 Comment
  SBBG128673  Datisca glomerata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49563 Orange San Juan Cyn at lower Picnic Camp, just below Ortega Hwy (74); Santa Ana Mtns Comment
  SD236432  Datura wrightii A. C. Sanders, Fred M. Roberts 2008-6-17 35520 Orange Peninsular Range; Santa Ana Mtns.: middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 224 Comment
  UCR224158  Datura wrightii Fred M. Roberts 2008-7-10 7075 Orange South Coast, Dana Point Headlands, CNLM Preserve, near Outlook 2, 0.7 km west of Marine Institute, Dana Point Harbor 52 Comment
  RSA699550  Daucus pusillus J. Vlahos 1934-04 s.n. Orange Lemon Heights Comment
  UCR192069  Daucus pusillus A. C. Sanders, Fred M. Roberts 2008-5-6 35245 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  HSC24274  Deinandra fasciculata James Henrickson 1970-7-24 5001 Orange 3 mi. NW of Huntington Beach near sandy 'Rabbit' Island in Bolsa Chica Salt Marsh near Inner Bolsa Bay 1 Comment
  JEPS12559  Deinandra fasciculata Lawrence M. Booth 1932-5-12 1038 Orange Newport Bay Comment
  SFV3981  Deinandra paniculata A. M. Johnson 1932-4-23 4006 Orange Dry hills north of Orange. 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
  RSA69411  Delphinium parryi F. W. Peirson 1925-4-11 5745 Orange 5 miles south of Laguna Beach. Comment
  RSA539368  Delphinium parryi Fred M. Roberts, Carol A. Roberts 1988-6-2 4030 Orange Santa Ana Mtns: Silverado Canyon, Maple Springs Truck Trail, 4.3km above gate. 1.0 km WSW Bald Peak. 817 Comment
  CAS-BOT-BC121418  Delphinium parryi subsp. parryi LeRoy Abrams 1901-6-1 1818 Orange Santiago Peak trail. 304 Comment
  RSA400033  Delphinium patens subsp. hepaticoideum Albert J. Perkins 1913-4-19 s.n. Orange Trabuco Canyon. Comment
  RSA433238  Dendromecon rigida subsp. rigida Christopher Davidson 1977-5-18 5603 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  RSA697422  Dentaria integrifolia R. H. McArthur 1934-3-3 62 Orange Forks of Laguna Canyon. 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
  RSA751988  Descurainia pinnata subsp. halictorum Fred M. Roberts, Eliza Maher 2008-3-26 6797 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 71 Comment
  UCR215308  Descurainia pinnata subsp. halictorum Fred M. Roberts, Eliza L. Maher 2008-3-26 6797 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Strands Road gate, 0.8 km west of Marine Institute, Dana Point Harbor 71 Comment
  CAS-BOT-BC402217  Dicentra chrysantha L. R. Abrams 1901-6-1 1806 Orange Santiago Pk. Comment
  UCR106269  Dichelostemma capitatum B. G. Pitzer, M. Georgiady 1997-4-5 3068 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  UCR192475  Dichelostemma capitatum A. C. Sanders, Fred M. Roberts 2008-3-25 34543 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  HSC22053  Dichelostemma capitatum subsp. capitatum S. M. Clapp 1966-4-7 21 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  RSA122  Dichelostemma capitatum subsp. capitatum J. T. Howell 1928-2-7 812 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  SEINET219060  Dichelostemma capitatum subsp. capitatum J. McNeill 1969-3-19 3017 Orange Aliso Canyon ca. 5 km. south of Laguna Beach. 10 Comment
  RSA698094  Dichelostemma capitatum subsp. capitatum Minor Warne 1934-03 s.n. Orange Laguna Hills. 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
  RSA731938  Digitaria ciliaris Fred M. Roberts, Sandy Leatherman 2007-11-27 6697 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  UCD64152  Digitaria sanguinalis Beecher Crampton 1965-10-27 7580 Orange 2 miles east of Irvine, Irvine Blvd. Comment
  RSA184181  Digitaria sanguinalis I. L. Wiggins 1965-9-25 20252 Orange Fullerton. Comment
  CHSC42169  Diplacus australis L. A. Hinman 1986-3-22 5 Orange Ca. 6 mi nw of San Juan Capistrano, Bell Canyon, 2 mi n of Hwy 74. Ca. 65 yds e of Bell Creek. 128 Comment
  CAS-BOT-BC151046  Diplacus brevipes A. C. Sanders 2008-4-29 35125 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  CAS-BOT-BC150841  Diplacus puniceus F. W. Pennell; E. M. Harvey 1949-6-29 26803 Orange Ortega Highway, above San Juan Capistrano 365 Comment
  RSA0054842  Diplacus puniceus Thelma Shipe 1932-4-22 s.n. Orange Santiago Canyon. Comment
  RSA17147  Diplotaxis muralis C. B. Wolf 1936-6-14 7942 Orange Rancho Santa Ana, Santa Ana canyon, Botanic Garden, around administration building. 198 Comment
  CAS-BOT-BC43568  Diplotaxis tenuifolia Katherine Esau 1931-5-13 s.n. Orange Santa Ana. Comment
  CDA3678  Diplotaxis tenuifolia Margaret Bellue, Tubbs, Johnson Oct 1944 Orange Bataxia Street Crossing, Santa Fe. 0 Comment
  HSC9634  Distichlis spicata J. W. Johnson 1961-2-19 Orange Newport Beach, marine terrace above upper Newport Bay. Comment
  RSA735749  Distichlis spicata A. C. Sanders, Fred M. Roberts 2008-6-17 35495 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  RSA539423  Draba cuneifolia var. integrifolia Fred M. Roberts, Karlin G. Marsh 1989-3-7 4195 Orange LOMAS DE SANTIAGO: Loma Ridge, tributary to Hicks Canyon, 2.2 km W Bee Survey Mark. 166 Comment
  LA208037  Drymocallis glandulosa Harlan Lewis; 1935-5-5 sn Orange Mouth of upper Santa Ana C 609 Comment
  RSA160425  Drymocallis glandulosa var. wrangelliana J. D. Olmsted 1959-4-30 509 Orange North of Hidden Ranch in Black Star Canyon; 100 yards NW of Rattlesnake Rock, 5 miles east of Irvine Lake 732 Comment
  IRVC124  Dryopteris arguta A. S. Boughey, P. Pembrook 1965-6-15 1056 Orange Santa Ana Mountains; Saddleback Mtn., Cleveland National Forest. Peninsular Ranges Comment
  IRVC28642  Dryopteris arguta Mark A. Elvin, A. C. Sanders 2005-9-2 4497 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  SEINET9625424 Image available Dryopteris arguta M. D. Windham 1998-3-31 98 -091 Orange Along tributary of Hot Spring Canyon in the Santa Ana Mts. ca. 3.01 km SE of Crow Spring. Cleveland N.F. Canada Gobernadora Quad ( 7 1/2 min. ). 320 Comment
  UCR215285  Dryopteris arguta Fred M. Roberts 2008-5-14 6962 Orange Lomas de Santiago, Loma Ridge, upper Bee Flat Canyon below Loma Ridge Road, 1.3 km north of Bee Peak and 5.4 km NW of Bolero Lookout. Irvine Ranch Conservancy 337 Comment
  IRVC24994  Dryopteris arguta Fred M. Roberts, R. Fisher 1986-6-18 3015 Orange Irvine; [San Joaquin Hills], east lateral to Shady Canyon, c.a. 2.9km SE French Hill. 82 Comment
  SBBG94387  Dudleya blochmaniae subsp. blochmaniae R. Moran 1950-4-24 3388 Orange San Clemente Comment
  SD207012  Dudleya edulis Reid Moran 1948-6-23 3096 Orange Aliso Canyon; Laguna Beach. Comment
  UC806718  Dudleya edulis R. V. Moran 1948-6-23 3097 Orange n-facing cliff near mouth Aliso Canyon (s of Laguna Beach); ; near mouth of Aliso Canyon, S of Laguna Beach, Orange Co. 7 Comment
  UC933265  Dudleya edulis Reid Moran 1949-5-28 3258 Orange Aliso Canyon Laguna Beach Comment
  RSA0002519  Dudleya edulis Reid V. Moran 1948-6-23 3097 Orange North-facing cliff near mouth of Aliso Canyn, south of Laguna Beach 8 Comment
  CLARK-A1528-2622  Dudleya lanceolata John C. Roos 1937-5-21 2338 Orange Santa Ana Comment
  JEPS49887  Dudleya lanceolata John Thomas Howell 1927-7-3 2637 Orange Claymine Canyon Santa Ana Mtns Comment
  POM6592  Dudleya lanceolata P. A. Munz 1919-5-4 s.n. Orange Laguna canyon Comment
  POM6660  Dudleya lanceolata P. A. Munz 1919-5-4 s.n. Orange Laguna Canyon. Comment
  RSA50298  Dudleya lanceolata E. K. Balls 1949-5-21 13470 Orange spontaneous in Rancho Santa Ana Botanic Garden (original site), hillside east of Cactus Garden, Santa Ana River Canyon. 198 Comment
  SEINET3089229 Image available Dudleya lanceolata Cesareo Perez 1971-5-18 22 Orange S. Mesa Dr. & Lemon St., Villa Park. Comment
  UCSB37819  Dudleya lanceolata Roos, John 1965-6-16 Orange Dana Point Comment
  CAS-BOT-BC411407  Dudleya lanceolata K. Nakai 1979-5-12 507 Orange Treasure Cove, Newport Bluffs 10 Comment
  RSA83330  Dudleya lanceolata F. W. Peirson 1924-6-1 4675 Orange Santa Ana River. 122 Comment
  RSA397815  Dudleya multicaulis Thekla Mohr 1920-06 s.n. Orange Hills near Laguna Comment
  RSA682920  Dudleya multicaulis Scott D. White, Amanda Duchardt 2003-5-1 9148 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  SD114475  Dudleya multicaulis Darley F. Howe 1967-5-30 4362 Orange Hillside back of Laguna Beach. Comment
  SD45412  Dudleya multicaulis Reid Moran 1950-5-24 3412 Orange Brushy slopes of Laguna Canyon 1.5 miles above the mouth. Comment
  RSA13068  Dudleya pulverulenta P. C. Everett 1935-7-5 2361 Orange Rancho Santa Ana, Santa Ana Canyon hill N of Grapefruit orchard 152 Comment
  RSA13069  Dudleya pulverulenta P. C. Everett 1935-7-5 2361 Orange Rancho Santa Ana, Santa Ana Canyon hill N of Grapefruit orchard 152 Comment
  RSA757122  Dudleya pulverulenta A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37192 Orange Lomas de Santiago, lower Hangmans Tree Canyon. 379 Comment
  UCR238166  Dudleya pulverulenta subsp. pulverulenta Mark A. Elvin, Peter A. Bowler 2003-6-28 2956 Orange Southern Coast, Irvine, San Joaquin Freshwater Marsh, adjacent to UCI campus, SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  SD45416  Dudleya stolonifera Reid Moran 1950-5-24 3411 Orange Laguna Canyon, north-facing cliff at about 800 feet, 1.5 miles above canyon mouth and 1.7 miles below Toro Road junction. Comment
  UC806717 Image available Dudleya stolonifera R. V. Moran 1948-6-23 3095 Orange n-facing cliff near mouth Aliso Canyon (s of Laguna Beach); ; near mouth of Aliso Canyon, S of Laguna Beach, Orange Co. 7 Comment
  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
  RSA715245  Dudleya viscida A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33053 Orange San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 366 Comment
  UC1015403  Dudleya viscida Reid Moran 1931-1 5246 Orange San Juan Hot Springs Comment
  UC115218  Dudleya viscida J. C. Nevin Oct 1881 Orange San Juan Comment
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Sep 1 2006
  UC718273  Dudleya viscida Carl B. Wolf 1936-6-17 7948 Orange 0.6 mi below San Juan Hot Springs (along Ortega Hwy); Santa Ana Mtns 182 Comment
  CAS-BOT-BC197028  Echinochloa colona Ira L. Wiggins 1965-11-5 20320 Orange Near corner or Dowling Street and Crowther Avenue, 1/2 mile S of Placentia Comment
  IRVC27653  Echinodorus berteroi R. E. Reifner 2000-8-21 20 728 Orange Irvine Lake [Santiago Reservoir], first cove SE of the dam Santa Ana Mtns. 238 Comment
  RSA532554  Echinodorus berteroi David E. Bramlet 1990-10-17 2063 -1 Orange Newport Beach: Delhi Channel at the intersection of Irvine Ave. and Mesa Drive just west of Newport Beach Golf Course. 6 Comment
  RSA794758  Echinodorus berteroi Justin M. Wood, Dustin M. Ray 2010-10-1 2775 Orange Santa Ana Canyon: Santa Ana River plus/minus 1 mi downstream of Gypsum Canyon Bridge, just upstream of large commercial development. Near drain outflow from Flood Control Levee on south side of channel. 110 Comment
  SEINET10456473  Echium Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-7-21 Dziekanowski 2416 Orange Collected around the condominium-Pacific Island Estates in Laguna Niguel. Comment
  RSA724049  Ehrharta erecta R. E. Riefner 1994-5-23 94 -387 Orange City of Seal Beach, San Gabriel River at River's End Cafe, First St. and Ocean Blvd. 3 Comment
  UCR137453  Eleocharis montevidensis Scott D. White, Brian Leatherman 1997-6-12 5332 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
  RSA365351  Eleocharis montevidensis var. montevidensis Anstruther Davidson 1926-05 s.n. Orange St Ana River Comment
  RSA789589  Eleocharis montevidensis var. parishii Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49633 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA798192  Eleocharis montevidensis var. parishii Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49571 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA705547  Eleusine coracana subsp. africana R. E. Riefner Jr. 2004-8-28 4 -407 Orange City of Fountain Valley, along Newland Avenue at Edinger Street. 14 Comment
  RSA746527  Eleusine coracana subsp. africana R. E. Riefner Jr. 2008-12-28 8 -391 Orange City of Irvine, San Diego Creek at Alton Pkwy. 48 Comment
  RSA746529  Eleusine coracana subsp. africana R. E. Riefner Jr. 2008-12-23 8 -382 Orange City of Lake Forest, along Alton Pkwy, at Barranca Rd. 80 Comment
  UCR92755  Elymus condensatus F. M. Reed 1928-1 6002 Orange Arch Beach, near South Laguna 15 Comment
  RSA751316  Elymus glaucus A. C. Sanders, Fred M. Roberts 2008-5-6 35274 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  CAS-BOT-BC206790  Elymus glaucus subsp. glaucus Le Roy Abrams 1901-6-1 1831 Orange Mt. Santiago Trail 914 Comment
  CAS-BOT-BC206791  Elymus glaucus subsp. glaucus Le Roy Abrams 1901-6-1 1822 Orange Santiago Pk. Comment
  JEPS71193  Elymus glaucus subsp. glaucus L. M. Booth 1932-6-7 1154 Orange Newport Bay Comment
  RSA0013953  Elymus glaucus var. glaucus Fred M. Roberts 2008-5-7 6940 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
  UCR2375  Elymus triticoides F. M. Reed 1932-5-24 7234 Orange South Coast, San Juan Capistrano, behind beach dune Comment
  CAS-BOT-BC412640  Emex spinosa unspecified 1933-4-21 s.n. Orange Lemon Grove Comment
  CAS-BOT-BC412641  Emex spinosa E. L. Paddock 1943-5-26 12740 Orange Frank Anderson grove, Manchester, 1/8 mile south of Midway Drive, Anaheim Comment
  CAS-BOT-BC131227  Encelia californica H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  HSC25235  Encelia californica Richard Spjut 1972-2-22 2227 Orange W of the Cleveland National Forest in the Santa Anna Mtns. along Hwy. 74 152 Comment
  HSC5474  Encelia californica J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  IRVC14678  Encelia californica A. S. Boughey 1968-7-16 423 Orange road to Signal Peak. San Joaquin Hills Comment
  RSA696884  Encelia californica Kenneth Beard 1934-03 s.n. Orange Waste land along road near Placentia. Comment
  RSA749287  Encelia californica Fred M. Roberts, David E. Bramlet 2008-4-1 6835 Orange Lomas de Santiago: Loma Ridge, Upper Hicks Cyn. along Haul Road, 1.0 km NNW Bee Peak, Irvine Ranch Conservancy. 341 Comment
  UCR267184  Encelia californica Fred M. Roberts 2010-3-12 7177 Orange Southeast Coast, DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c. 150 meters SE Interpretive Center 50 Comment
  UCR223422  Encelia farinosa Dick Newell, Don Millar 2011-3-1 068 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  JEPS31486  Epilobium canum subsp. canum L. M. Booth 1932-7-27 1320 Orange Corona del Mar Comment
  POM146315  Epilobium canum subsp. canum Chas H. Quibell 1927-07 s.n. Orange Laguna Beach. Comment
  POM18136  Epilobium canum subsp. canum P. A. Munz 1923-9-7 7764 Orange Santa Ana Mountains, on trail from Trabuco Canyon to Santiago Peak. 1616 Comment
  RSA511  Epilobium canum subsp. canum J. T. Howell 1927-7-26 480 Orange Claymine Canon near Sierra Peak. 244 Comment
  UC284876  Epilobium canum subsp. canum P. A. Munz 1923-9-7 7764 Orange slopes from Trabuco Canyon to Santiago Peak; Santa Ana Mts. 1615 Comment
  UCR195004  Epilobium ciliatum A. C. Sanders, Fred M. Roberts 2008-8-7 35989 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
  POM6436  Epilobium ciliatum subsp. ciliatum P. A. Munz, L. T. Street, G. Williams 1919-5-4 2680 Orange Laguna Canyon. Comment
  RSA72176  Epilobium ciliatum subsp. ciliatum F. W. Peirson 1924-5-31 4653 Orange Laguna Canyon, near Laguna Beach. 107 Comment
  RSA698282  Epilobium watsonii var. franciscanum Snow 1929-3-18 39 Orange Santa Ana River. Comment
  SD245191  Epipactis gigantea R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49608 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  RSA699857  Equisetum hyemale var. affine R. H. McArthur 1934-3-1 s.n. Orange Santa Ana River at 1st Street Comment
  IRVC21385  Equisetum laevigatum A. S. Boughey 1968-7-9 406 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA21057  Equisetum laevigatum Ramon Valverde 1938-8-4 9447 or 3235 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  UCR174026  Equisetum laevigatum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33050 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
  RSA753080  Eragrostis A. C. Sanders, Fred M. Roberts 2008-9-18 36091 Orange Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  UC2042144  Eragrostis mexicana subsp. virescens R. F. Thorne with E. W. Lathrop, W. Wisura 1977-7-8 49567 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  CHSC116469  Eragrostis mexicana subsp. virescens R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49567 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  SBBG128578  Eragrostis mexicana subsp. virescens R. F. Thorne, E. Lathrop, W. Wisura 1977-7-8 49567 Orange San Juan Cyn at lower picnic camp, just below Ortega Hwy (74); Santa Ana Mtns Comment
  SD245210  Eragrostis mexicana subsp. virescens R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49567 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  RSA170439  Eremocarpus setiger J. D. Olmsted 1959-8-26 831 Orange 100 yards northeast of center of Hidden Ranch by pump along Black Star Canyon Road. N end of Santa Ana Mountains 671 Comment
  UC947527  Eriastrum sapphirinum A. G. Vestal 1947-6-12 Orange below terrace; Trabuco Canyon Comment
  RSA769342  Eriastrum sapphirinum E. W. Lathrop 1974-6-27 7419 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA0121308  Eriastrum sapphirinum subsp. dasyanthum Anstruther Davidson 1920-06 s.n. Orange Laguna. Comment
  RSA0121318  Eriastrum sapphirinum subsp. dasyanthum Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment
  RSA741718  Ericameria cuneata var. cuneata R. E. Riefner 2007-6-29 07 -285 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, E fork Fremont Canyon, Black Star SCE Rd. 613 Comment
  CHSC346  Ericameria linearifolia S. Westerberg 1938-3-25 Orange Santa Ana. Comment
  OBI5705  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 2504 Orange Hiils on N side of Santa Ana cyn. (Rancho Santa Ana Botanic Garden-ner marker no 14E 9) 207 Comment
  RSA703702  Ericameria palmeri var. pachylepis Fred M. Roberts, David E. Bramlet 2004-11-5 6132 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Gato Cyn., tributary to Cristianitos Cyn., 0.62 km NW Gato Gate and 0.55 km W Cristianitos Rd. 125 Comment
  RSA38491  Ericameria parishii Percy C. Everett 1945-11-13 11512 Orange Indian Canyon Truck Trail, Indian Canyon, Santa Ana Mts. 960 Comment
  CAS-BOT-BC293091  Ericameria pinifolia John Thomas Howell 1927-10-23 3172 Orange On n. side of Santa Ana Canon [Canyon] 152 Comment
  UC1118814  Ericameria pinifolia H. E. Norton 1931-2-26 31 Orange San Joaquin Hills Corona Quad., San Joaquin Hills 121 Comment
  RSA696783  Erigeron foliosus Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  RSA7468  Erigeron foliosus var. stenophyllus C. B. Wolf 1933-8-24 5392 Orange Summit of Santiago Peak, Santa Ana Mountains. 1707 Comment
  RSA0054860  Erigeron linifolius Keith E. Hoffmaster 1927-5-11 285 Orange Santa Ana. Comment
  RSA696818  Erigeron philadelphicus Anonymous s.n. Orange Moist Shade-Orange Co. Park. Comment
  POM12994A  Eriodictyon crassifolium P. A. Munz, I. M. Johnston 1921-5-18 5316 Orange Santa Ana River Canyon. 244 Comment
  UCSB47628  Eriodictyon crassifolium Roberts, Jr., Fred 1980-5-3 Orange Santa Ana Mtns.; Main Divide Truck Trail, 1.1 km. SE Blue Jay Campground; 2.6 km. WSW El Cariso Guard Station 902 Comment
  RSA0055744  Eriodictyon crassifolium R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49682 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  RSA748172  Eriodictyon crassifolium var. crassifolium K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 1 Orange Cleveland National Forest, 0.5 mi. N Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mtns., ridge top. 917 Comment
  POM147617  Eriogonum elongatum F. M. Reed 1927-9-19 5473 Orange Santa Ana Canon Highway on Sulphur Slide Summit. Comment
  RSA749687  Eriogonum elongatum A. C. Sanders, Fred M. Roberts 2008-7-16 35829 Orange Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  POM293155  Eriogonum fasciculatum Lyman Benson 1946-5-13 12095 Orange Corona del Mar, Pacfic Ocean drainage area 15 Comment
  RSA393517  Eriogonum fasciculatum N. C. Cooper 1949-5-1 3943 Orange San Juan Canyon. 610 Comment
  SEINET10680005  Eriogonum fasciculatum subsp. fasciculatum Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 4 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  CAS-BOT-BC253220  Eriogonum fasciculatum var. fasciculatum D. L. Crawford 1916-5-10 s.n. Orange Laguna Beach 304 Comment
  CAS-BOT-BC253221  Eriogonum fasciculatum var. fasciculatum H. F. Copeland 1938-6-28 s.n. Orange Laguna Beach Comment
  UC536920  Eriogonum fasciculatum var. fasciculatum Lawrence M. Booth 1932-5-18 1057 Orange Newport Bay Comment
  RSA650866  Eriogonum fasciculatum var. foliolosum R. B. Newcom 1948-4-24 20 Orange approx. 4 miles S.W. of Santiago Dam. 38 Comment
  UC1292577  Eriogonum fasciculatum var. foliolosum C. L. Hitchcock, C. V. Muhlick 1964-3-17 23062 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  UCR131886  Eriogonum fasciculatum var. foliolosum J. Mallory, V. McCoy 1995-7-3 6454- 69 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  UCR93938  Eriogonum fasciculatum var. foliolosum B. G. Pitzer 1996-4-30 2806 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  CAS-BOT-BC250037  Eriogonum fasciculatum var. polifolium Agnes M. Bowman 1899-6-1 s.n. Orange Orange Comment
  RSA542470  Eriogonum fasciculatum var. polifolium Karlin G. Marsh 1989-6-23 s.n. Orange Laurel Springs, Harding Truck Trail. 316 Comment
  CAS-BOT-BC253482  Eriogonum gracile John Thomas Howell 1927-7-24 2832 Orange Claymine Canyon, N. Santa Ana Mts. 152 Comment
  UCR274309  Eriogonum gracile Dick Newell, Don Millar 2016-7-19 431 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon Rd., 1/2 mile SE of junction with Dripping Springs Trail 344 Comment
  RSA393245  Eriogonum gracile var. gracile J. T. Howell 1927-7-16 2781 Orange Hills on N side of Santa Ana Canyon. 152 Comment
  UC1930124  Eriogonum mohavense Scott D. White 2003-6-8 9514 Orange W MOJAVE DESERT: Near Lake Los Angeles. North of Avenue O and east of 150th St. E. Comment
  RSA528048  Eriogonum parvifolium A. C. Sanders 1990-10-6 10179 Orange Newport Bay, Westcliff Park area on the SW end of the bay, 1km inland of Hwy 1. 1 Comment
  RSA5353  Eriogonum parvifolium B. D. Stark 1932-12-9 4423 Orange Canyon 1 mile NW of Laguna Beach. 15 Comment
  RSA542469  Eriogonum parvifolium Fred M. Roberts 1988-10-12 4160 Orange San Clemente State Park: ca. 0.3km SE end of Ave. Califia along Santa Fe RR. 3 Comment
  UCR46823  Eriogonum parvifolium T. R. Van Devender, R. K. Van Devender 1986-11-16 86- 214 Orange 3.2 miles northwest of Laguna Beach on Highway 1 at Pelican Point Comment
  SD40736  Eriogonum thurberi E. R. Johnson 1933-6-22 4999 Orange Rancho Santa Ana, Santa Ana Canyon river bottom S. of Walnut Grove 121 Comment
  UC912801  Eriogonum thurberi E. R. Johnson 1933-6-22 4999 Orange river bottom s Walnut Grove; Rancho Santa Ana, Santa Ana Canyon 121 Comment
  RSA734762  Eriophyllum confertiflorum A. C. Sanders, Teresa B. Salvato 2008-5-13 35342 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
  SEINET3386759 Image available Eriophyllum confertiflorum F. M. Reed 1925-5-14 4978 Orange Aliso Canyon. 30 Comment
  UCR192997  Eriophyllum confertiflorum A. C. Sanders, T. B. Salvato 2008-5-13 35342 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
  LA203538  Eriophyllum confertiflorum var. confertiflorum W. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  LA203539  Eriophyllum confertiflorum var. confertiflorum W. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  UC1118358  Eriophyllum confertiflorum var. confertiflorum A. Lewis 1934-4-1 391 Orange San Joaquin Hills Corona Quad., San Joaquin Hills 213 Comment
  RSA610240  Erodium brachycarpum Fred M. Roberts 1997-3-13 4983 Orange Rancho Mission Viejo: Christianitos Canyon, 4 km ESE Viejo Survey Mark. 5 Comment
  HSC8494  Erodium cicutarium J. W. Johnson 1961-3-29 Orange Newport Beach, along upper Newport Bay Comment
  RSA653187  Erodium cicutarium David Barrios 1991-5-1 6 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle. 366 Comment
  UCSB48064  Erodium cicutarium Fritzke, S.; Roberts, Fred 1982-4-2 Orange Laguna Niguel: hills; 3.5km ESE Aliso Peak; 3.2km ESE Alicia Fire Station; N of Del Avion 100 Comment
  RSA423  Erodium moschatum J. T. Howell 1928-2-7 824 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  IRVC22653  Erysimum capitatum L. Orsak 1973-5-10 Orange Upper Santiago Canyon, top of Joplin Trail, Santa Ana Mountains 1483 Comment
  SD136131  Erythranthe floribunda Dylan T. Hannon 1992-6-12 165 Orange Arroyo Trabuco, below Santa Margarita Parkway Bridge Comment
  JEPS51726  Eschscholzia californica Alice King June, 1908 Orange Santa Ana Comment
  UCR192999  Eschscholzia californica A. C. Sanders, T. B. Salvato 2008-5-13 35379 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
  UCR50912  Eucalyptus tereticornis Dave Goodward 1987-4-16 6 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
  UCR182895  Eucalyptus utilis Dean Kelch 2006-12-9 06 .538 Orange Along Newport Back Bay Dr. in side canyon 6 Comment
  RSA749485  Eucrypta chrysanthemifolia Fred M. Roberts 2008-3-25 6793 Orange Loma Ridge: Upper Hicks Cyn. near Haul Road, c.a. 4.4 km by road from Portola Pkwy. and 3.2 km ENE Rattlesnake Cyn. Reservoir. 269 Comment
  JEPS1726  Eucrypta chrysanthemifolia var. chrysanthemifolia Alice King 1908-1 Orange Anaheim Comment
  SD211599  Euphorbia Louis C. Wheeler 1946-8-8 6225 Orange Imperial Highway 1/4 mile West of Caroline Avenue, 2 miles East-Southeast of Brea Comment
  IRVC25150  Euphorbia albomarginata Fred M. Roberts 1986-9-3 3134 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  RSA697586  Euphorbia albomarginata J. R. Bruff s.n. Orange Roadside-Near Orange Co. Park. Comment
  RSA708445  Euphorbia albomarginata Mark Elvin 2004-5-2 3248 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  RSA220976  Euphorbia crenulata E. W. Lathrop 1966-4-6 6143 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA518463  Euphorbia misera Gary D. Wallace 1966-4-30 522 Orange West of Dana Point. Comment
  SD211597  Euphorbia misera R. E. Riefner Jr. 2008-3-24 08 62 Orange City of Dana Point, Dana Point Harbor, along Dana Point Harbor Drive at Island Way. USGS 7.5' Quad: West Basin, Dana Point 11 Comment
  UCD142438  Euphorbia misera C. W. Tilforth; B. Busenberg 1979-11-14 1925 Orange Dana Point; north of Marina parking lot. Comment
  RSA716774  Euphorbia peplus Fred M. Roberts, Michelle Balk, Robert Allen, Chris Barnhill 2004-6-19 6065 Orange Santa Ana Mtns: Holy Jim Cyn.: Holy Jim Trail, 3.5km SE summit of Santiago Peak. 610 Comment
  RSA752715  Euphorbia peplus Fred M. Roberts, Sandy Leatherman, Jennifer Pareti 2009-4-14 7151 Orange Dana Point Headlands: Dana Strand Beach and slopes above beach, 0.8 km WNW Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  UCSB56679  Euphorbia peplus Roberts, Jr., Fred 1984-2-4 Orange South Laguna; Aliso Canyon near mouth, 0.7 km. WNW Aliso Peak 15 Comment
  RSA697596  Euphorbia polycarpa Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  UCR191355  Euphorbia polycarpa A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34642 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  RSA0104828  Euphorbia polycarpa var. polycarpa A. S. Boughey 1968-4-23 211 Orange Santa Ana Mountains: Black Star Canyon; 1/2 mi. below Hidden Ranch. Comment
  RSA0104830  Euphorbia polycarpa var. polycarpa Mike McCartin 1965-4-4 s.n. Orange Silverado Canyon. Comment
  RSA797436  Euphorbia serpillifolia Keith E. Hoffmaster 1933-6-19 s.n. Orange Santa Ana. Comment
  RSA392120  Eustoma exaltatum Theodore Payne 1925-08 s.n. Orange 9 miles E of Florentia, Santa Ana river. Comment
  RSA151085  Euthamia occidentalis Peter H. Raven 1961-10-15 16856 Orange Dyke along road to Yorba Linda just north of US Hwy 91 114 Comment
  SBBG65406  Extriplex californica M. N. Ackley -May-1929 Orange Sunset Beach 8 Comment
  UCR100181  Festuca myuros Scott D. White 1993-3-5 1116 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  UCR266300  Festuca octoflora D. E. Bramlet 2008-3-26 4119 Orange Peninsular Range; Santa Ana Mountains, Bee Canyon, Bowerman landfill site. 202 m south of the Bee Canyon access road and 151 m west of the active landfill entrance 295 Comment
  UCR241042  Ficus carica Robert DeRuff 2009-1 455 Orange South Coast, Upper Newport Bay, above Back Bay Dr. at Eastbluff North 7 Comment
  RSA542485  Ficus carica Fred M. Roberts, William L. Smith 1988-7-30 4127 Orange San Juan Capistrano: Horno creek, Marbella country club, just east of Rancho Viejo road.. 0.8 km NE Mission San Juan Capistrano. 43 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-BC502073  Ficus microcarpa R. E. Riefner, Jr. 2015-8-27 15 -366 Orange City of Newport Beach, Corona del Mar, long Marguerite Ave., near Seaview Ave. 30 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
  RSA0116293  Ficus microcarpa R. E. Riefner Jr. 2008-10-22 08 -312 Orange City of Laguna Beach, vicinity of West St and Pacific Coast Hwy. 8 Comment
  UCR267276  Ficus microcarpa R. E. Riefner Jr. 2014-11-26 14- 399 Orange City of Irvine, west of Irvine Blvd. and south of Pusan Way, former MCAS El Toro facility 138 Comment
  CAS-BOT-BC474735  Ficus rubiginosa R. E. Riefner, Jr. 2015-8-27 15 -356 Orange City of Laguna Beach, S side of Beach St. E of Broadway Ave (Hwy 133) 7 Comment
  IRVC24745  Filago californica Fred M. Roberts 1986-4-29 2821 Orange Turtle Rock, above corner of Ridgerout Dr. and Turtle Rock Dr., 1.1km SE French Hill, Irvine 141 Comment
  RSA588652  Filago californica Fred M. Roberts, Carol A. Roberts 1990-5-23 4657 Orange Santa Ana Mts.: West Fork, Upper Long Canyon, Main Divide Truck Trail, 4.3 km SE Los Pinos Peak. 753 Comment
  RSA688977  Filago gallica Fred M. Roberts, David E. Bramlet 2003-4-10 5637 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  UCR192091  Filago gallica A. C. Sanders, Fred M. Roberts 2008-5-6 35257 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  CHSC35808  Foeniculum vulgare James Henrickson 1972-10-21 8053 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. Along La Palma Ave., just N. of Santa Ana River. 60 Comment
  RSA703732  Foeniculum vulgare Fred M. Roberts, D. E. Bramlet 2004-7-30 6092 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Cristianitos Cyn., parking area at Gato Gate and 0.06 km W Cristianitos Road. 96 Comment
  CAS-BOT-BC53337  Frangula californica subsp. cuspidata P. C. Everett 1935-6-18 7217 Orange Santa Ana Mts., Summit of Santiago Pk. 1731 Comment
  RSA231136  Frankenia grandifolia Michael Ward 1970-8-22 V- 7 Orange 4 miles South of Seal Beach, NE of PCH amd Bolsa Chica State Park at Bolsa Chica Salt Marsh. 0 Comment
  RSA697658  Frankenia grandifolia Minor Warne 1934-5-12 s.n. Orange Salt Marsh Newport Bay Comment
  PASA433  Frankenia grandifolia var. campestris Frank W. Peirson 1924-8-29 Orange 4 miles south of Santa Ana Comment
  CAS-BOT-BC223805  Frankenia salina Frank W. Peirson 1924-5-31 4659 Orange Laguna Canon [Canyon] Comment
  UCSB68455  Frankenia salina Fishman, Paul; Williams, H. 1969-9-23 Orange Upper Newport Bay, below east park (bluff?) Comment
  UCR261702  Frasera parryi Dick Newell, Judy Booth 2014-5-26 377 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, upper Long Canyon Rd., 1.3 mile NW of El Cariso Hotshot Camp 996 Comment
  IRVC29832  Fraxinus Tom McCrainie, Mark A. Elvin 2006-9-23 6 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  CAS-BOT-BC217644  Fraxinus dipetala John Thomas Howell 1927-7-26 2844 Orange Claymine Canyon, n. Santa Ana Mts. 243 Comment
  CAS-BOT-BC538093  Fraxinus uhdei R. E. Riefner, Jr. 2014-11-28 14 -408 Orange City of Newport Beach, SW corner Jamboree Rd. at MacArthur Blvd 16 Comment
  RSA443842  Fraxinus velutina Gordon Marsh 1977-9-1 s.n. Orange Mission Viejo, Alicia Springs. Comment
  SEINET10837687  Fuchsia hybrida David B. Dunn 1971-8-13 Dunn 18122 Orange Cultivated plants vicinity of laguna beach. Comment
  CAS-BOT-BC422453  Fumaria officinalis Ira L. Wiggins 1965-12-5 20366 Orange 2 mi. E. of Atwood on N. side of Orangethorpe Avenue. Comment
  RSA609661  Galium angustifolium R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  UCR223428  Galium angustifolium Dick Newell, Don Millar 2011-2-15 060 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  POM367702  Galium angustifolium subsp. angustifolium M. B. Dunkle 1934-6-18 3965 Orange Upper San Juan Canyon. 610 Comment
  RSA33791  Galium angustifolium subsp. angustifolium N. C. Cooper 1944-6-4 1372 Orange San Juan Canyon. 305 Comment
  RSA797667  Galium angustifolium subsp. angustifolium Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49771 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR227752  Galium angustifolium subsp. angustifolium R. F. Thorne 1963-7-26 32825 Orange Santa Ana Mountains, Cleveland National Forest, [vicinity of road from Beek's Spring to Pleasants Peak], Trabuco District 1159 Comment
  POM256705  Galium angustifolium subsp. angustifolium W. Pequegnat 1940-6-15 s.n. Orange Santa Ana Mountains: Modjeska Flat. 1372 Comment
  RSA0073656  Galium aparine Fred M. Roberts, Lee Ann Caranza 2009-4-7 7142 Orange Dana Point Headlands: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 60 Comment
  UCR140795  Galium nuttallii Robin G. Marushia 2004-4-16 021 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
  RSA732225  Galium parisiense A. C. Sanders, Fred M. Roberts 2008-4-22 35027 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado. 1200 Comment
  RSA586253  Gastridium phleoides R. E. Riefner 1994-9-6 95 -560 Orange San Clemente State Beach Comment
  UCR191247  Gastridium ventricosum A. C. Sanders 2008-4-29 35131 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR209347  Gaura coccinea Fred M. Roberts 2008-4-15 6898 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, east ridge, Conservation Trail, 1.6 km east-southeast of Rattlesnake Reservoir Dam and 2.6 km west-southwest of Bee Peak, Irvine Ranch Conservancy 183 Comment
  SEINET10728263  Gazania David B. Dunn 1971-8-13 Dunn 18118 Orange Cultivated plants vicinity of Laguna Beach. Comment
  RSA718969  Gazania linearis Fred M. Roberts, Robert L. Allen 2006-10-8 6411 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
  RSA689409  Geranium carolinianum Scott D. White, Amanda Duchardt 2003-4-10 9012 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  UCR192636  Geranium carolinianum A. C. Sanders, Fred M. Roberts 2008-4-8 34754 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
  RSA702805  Geranium carolinianum D. E. Bramlet, F. M. Roberts 2003-3-27 3357 Orange Donna O Neill Reserve. 152 m. W of Cristianitos Rd. and 1.4 km. N of the E-W access road. 113 Comment
  RSA588801  Geranium dissectum Fred M. Roberts 1990-5-7 4597 Orange Rancho Mission Viejo: Ridge south of Blind Canyon, TRW Lease Holding, 4.9 km NE Clemente Survey Marker. 152 Comment
  OBI82304  Geranium incanum var. multifidum Unknown 2011-7-1 11 -78 Orange City of Laguna Beach, South Crescent Bay, vicinity of Circle Drive and Island Way. 5 Comment
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Apr 23 2020
  RSA734014  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-4-22 35061 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfil on road from H icks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado. 493 Comment
  RSA470266  Gilia capitata subsp. abrotanifolia M. B. Dunkle 1933-5-30 3579 Orange Santa Ana Canyon. Comment
  POM256716  Gilia capitata subsp. abrotanifolia W. Pequegnat 1940-5-24 s.n. Orange Modjeska Flat. Comment
  RSA698350  Gilia multicaulis R. H. McArthur s.n. Orange Gypsum Canyon. Comment
  RSA7326  Glycyrrhiza lepidota E. R. Johnson 1933-7-6 5169 Orange 1/2 mile south of Mexican houses, Rancho Santa Ana 122 Comment
  RSA785635  Gnaphalium beneolens Doris Bowers 1970-10-26 1708 Orange Black Star Can. Indian site 610 Comment
  POM358937  Gnaphalium californicum N. C. Cooper 1949-5-1 3945 Orange San Juan Canyon 610 Comment
  RSA696915  Gnaphalium californicum Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  UCR195022  Gnaphalium canescens subsp. microcephalum A. C. Sanders, Fred M. Roberts 2008-8-7 35971 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
  UCR197679  Gnaphalium canescens subsp. microcephalum A. C. Sanders, Fred M. Roberts 2008-9-18 36068 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  UCR66090  Gnaphalium canescens subsp. microcephalum A. C. Sanders 1990-10-6 10194 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
  RSA856  Gnaphalium chilense J. T. Howell 1927-7-21 453 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA683220  Gnaphalium leucocephalum Scott D. White, Matt Carlton 2003-11-20 9874 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 37 Comment
  RSA731658  Gnaphalium luteoalbum Fred M. Roberts 2007-10-29 6621 Orange Niguel Hill: Laguna Niguel, Seaview Park, 1.3 km ENE Aliso Peak. 265 Comment
  UCR237827  Gnaphalium microcephalum Mark A. Elvin 2003-2-2 2266 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCR193495  Gnaphalium palustre A. C. Sanders, T. B. Salvato 2008-5-13 35360 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
  RSA39325  Gnaphalium palustre E. L. Paddock 1943-5-29 12746 Orange S Deodar, 1/2 mile E of Pomona Brea. Comment
  CLARK-A1528-1859  Gnaphalium peregrinum John C. Roos 1965-6-16 Orange Dana Point Comment
  IRVC22959  Gnaphalium ramosissimum Karlin G. Marsh, G. A. Marsh 1982-8-20 Orange Moro Canyon, Crystal Cove State Park; edge of oak riparian woodland by side of road. San Joaquin Hills Comment
  RSA202179  Grindelia camporum var. bracteosa L. M. Booth 1932-5-24 1092 Orange Newport Bay, Public Golf Course. Comment
  UCR113450  Grindelia camporum var. bracteosa R. E. Riefner Jr. 2000-7-8 20- 626 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, on ridgetop overlooking W fork of Fremont Canyon, east of Main Divide Road along the powerline 396 Comment
  UC1543105  Grindelia hirsutula Donald G. Nelson 1935-6-27 333 Orange on bluffs facing ocean beaches s Corona del Mar (s of mouth of Newport Bay) Comment
  CAS-BOT-BC140500  Gutierrezia californica Dick Newell; Don Millar 2010-8-31 033 Orange Peninsular Range; Santa Ana Mtns. Foothills: Edison Road above Irvine Lake, 0.9 miles west of Black Star Canyon Rd. 412 Comment
  LA97587  Gutierrezia californica David S. Verity; 1974-2-20 sn Orange hills behind South Laguna Comment
  RSA750926  Gutierrezia californica A. C. Sanders, Fred M. Roberts 2008-7-3 35698 Orange Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir. 275 Comment
  RSA867  Gutierrezia californica J. T. Howell 1927-9-24 746 Orange Santa Ana Botany Garden 152 Comment
  SEINET2052347 Image available Gutierrezia californica B. Pitzer, D. Hawks 1986-10-21 346 Orange Lomas de Santiago, ca. 10.0 miles E. of Santa Ana, in hills N and E of South Coast Gun Club on Jeffrey Rd. in Hicks Canyon. 182 Comment
  UCR281517  Gutierrezia californica Mitch Provance 2017-6-9 617- 96 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  RSA581660  Hainardia cylindrica Tony Bomkamp 1995-06 s.n. Orange Gabino Canyon, near confluence with Cristianitos Canyon. (San Clemente USGS 7.5' quadrangle) Comment
  RSA756326  Haplopappus menziesii A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37196 Orange Lomas de Santiago, Limestone Canyon, west of Limestone Canyon Rd. 366 Comment
  RSA0066591  Harpagonella palmeri Scott D. White, Amanda Duchardt 2003-3-27 8862 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 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
  UCR234138  Hazardia squarrosa Dick Newell, Peter Wetzel 2011-8-30 217 Orange Peninsular Range; Santa Ana Mtns., Black Star Canyon Rd. and Edison Rd. 502 Comment
  RSA663158  Hazardia squarrosa var. grindelioides R. E. Riefner 2000-8-3 20 -710 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and Windy Ridge. 534 Comment
  RSA743465  Hedera helix Fred M. Roberts, Carol A. Roberts 2008-9-28 7115 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  CAS-BOT-BC306305  Hedypnois cretica C. B. Wolf 1938-5-2 9406 Orange City of Fullerton, Francis St., 1200 block E. side in vacant lot 60 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
  RSA678459  Hedypnois cretica Valerie L. Soza, Kim Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1118 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 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
  RSA725583  Helianthemum scoparium Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6530 Orange dirt road along ridge between Black Star and Fremont Canyons, 4.4km ENE Irvine Lake spillway and 2.4km WSW Hidden Ranch. 662 Comment
  RSA734962  Helianthemum scoparium A. C. Sanders, Fred M. Roberts, A. O'Neal 2008-5-9 35309 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  RSA0027431  Helianthus annuus Fred M. Roberts 2013-7-18 7665 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
  UCR73132  Helianthus annuus Scott D. White 1992-9-23 853 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
  RSA696894  Helianthus annuus Kenneth Beard 1934-02 s.n. Orange Waste land along highway near Stanton. Comment
  POM359985  Helianthus annuus subsp. lenticularis Josephine Derigo 1941-7-25 s.n. Orange Canyon road to Laguna Beach, California. open feilds and road side. Low lands Comment
  UCR80232  Helianthus ciliaris E. L. Paddock 1942-7-21 11291 Orange Toler Ranch, north side Ocean Ave., 1/4 mi west of La Mirada Rd., La Habra Comment
  CDA6543  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, north of El Toro, ca. 11 miles southeast of Tustin. 0 Comment
  RSA736587  Helianthus gracilentus Keith E. Hoffmaster 1934-5-13 173 Orange Santa Ana Mountains Comment
  UCR230222  Helianthus gracilentus Dick Newell, Ed Hill 2011-3-29 099 Orange Peninsular Range; Santa Ana Mtns., 200 yards NE of old coal mine, under power lines, off Coal Rd. below intersection with Upper Blind Cyn. Rd. 482 Comment
  RSA749044  Heliotropium curassavicum A. C. Sanders, Fred M. Roberts 2008-8-7 35983 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 185 Comment
  SEINET3083751 Image available Heliotropium curassavicum Janice Hollinger 1972-4-16 720416 -5 Orange Santa Ana River bottom, off Coal Canyon Road. Comment
  UCR239853  Heliotropium curassavicum O. F. Clarke 2004-4-5 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  RSA202173  Hemizonia australis L. M. Booth 1932-6-7 1169 Orange Newport Lagoon. Comment
  RSA520925  Hemizonia australis D. E. Bramlet 1990-11-3 2064 Orange W side Upper Newport Back Bay, ca 50 m NW of the Delhi channel. Population ca 100 m SE of end of University Dr. 23 Comment
  RSA5803  Hemizonia australis C. B. Wolf 1932-6-28 3781 Orange Along western half of no. boundary of 40 acre Valencia Orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA5867  Hemizonia australis C. B. Wolf 1932-9-13 4019 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
  RSA807  Hemizonia australis J. T. Howell 1927-6-30 234 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA734120  Hemizonia fasciculata A. C. Sanders 2008-4-29 35142 Orange Peninsular Range;Santa Ana Mtns.: Lomas de Santiago, western end of Loma Ridgeon road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR107857  Hemizonia fasciculata Scott D. White, B. Leatherman 1998-1-26 6069 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Avenue and new freeway (Bonita Cyn.) 37 Comment
  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
  UCR193760  Hemizonia fasciculata A. C. Sanders, Fred M. Roberts 2008-7-3 35705 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
  RSA697113  Hemizonia fasciculata Jeanne Parton 1984-5-1 s.n. Orange Orange Co. Dam. Habitat-low hills. Comment
  POM5969  Hemizonia paniculata D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. Comment
  SEINET3071661 Image available Hemizonia parryi subsp. australis D. D. Keck 1933-9-29 2537 Orange Seal Beach Comment
  UCR240101  Hemizonia parryi subsp. australis Dick Newell 2012-9-29 295 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 2 Comment
  UCD113321  Heteromeles arbutifolia K. M. Meyer; A. Townesmith and T. Scott 2007-3-10 3 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  RSA0072399  Heteromeles arbutifolia Carl B. Wolf, B. D. Stark 1932-12-19 4430 -A Orange Santa Ana Mts: 1/2 mile from Skyline Drive on firebreak road to Sierra Peak. 762 Comment
  UCR193610  Heterotheca grandiflora A. C. Sanders, Fred M. Roberts 2008-5-6 35236 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  UCR237829  Heterotheca grandiflora Mark A. Elvin 2003-2-2 2265 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA0075810  Heterotheca grandiflora Minor Warne 1934-5-12 s.n. Orange Newport Bluffs. Comment
  UCR250865  Heterotheca sessiliflora Dick Newell, Don Millar 2014-4-29 368 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon wash 0.5 mi. above lower gate at 241 Toll Rd. 257 Comment
  POM146204  Heterotheca sessiliflora subsp. echioides F. M. Reed 1927-10-14 5502 Orange Summit of Sulfur Slide Hill, Santa Ana Canyon Comment
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May 1 2011
  RSA752894  Heterotheca sessiliflora subsp. echioides A. C. Sanders, Fred M. Roberts 2008-8-7 35973 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  SBBG128672  Hoita macrostachya R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49564 Orange San Juan Cyn at Lower Picnic Camp, just below Ortega Hwy (74); Santa Ana Mtns Comment
  SD40737  Holodiscus discolor E. R. Johnson 1933-6-22 5000 Orange Rancho Santa Ana, Santa Ana Canyon, NW corner of ranch, 1/4 Mi. E, 1/2 mi. S 305 Comment
  POM205098  Hordeum brachyantherum subsp. californicum H. M. Hall 1902-05 3285 Orange Santa Ana River 183 Comment
  RSA701429  Hordeum depressum Rankin s.n. Orange Laguna Beach Comment
  UCSB52866  Hordeum depressum Roberts, Fred 1983-4-24 Orange Dana Point Headlands; south of Pacific Coast Hwy, 0.4km W Harbor; 0.7km SSW Richard Henry Dana Sch. 79 Comment
  SD255611  Hordeum intercedens D. E. Bramlet 2001-5-15 3143 Orange Santa Ana Mountains Foothills: upper watershed of Deep Canyon, 1300ft E of Krum Reservoir, c. 2 miles SE of San Juan Capistrano, 1200 ft S of Avenida Placida, W of the Prima Desecha landfill (Dana Point 7.5'Q) 200 Comment
  UCR104090  Hordeum intercedens D. E. Bramlet 1993-4-18 2332 Orange Tustin, University of California, Irvine Campus, on the UCI Ecological Reserve. Site is 500 ft SW of the end of Los Trancos Dr. and 75 ft NW of the reserve entrance 49 Comment
  UCR158149  Hordeum intercedens Adrian Wolf 1998-5-4 204 Orange South Coast, Coastal Hills, Aliso/Woods Canyon Regional Park, trail to Dripping Cave, in Woods Canyon 1 km up from confluence with Aliso Canyon, west of Sheep Hills, south of Dripping Cave 134 Comment
  UCR158227  Hordeum intercedens Adrian Wolf, David Charlton 1998-4-22 128 Orange South Coast, San Joaquin Hills, Shady Canyon east of Sand Canyon Reservoir, 1 mile [ESE] of French Hill, south of gravel road toward Sand Cyn. Rd 79 Comment
  RSA701209  Hordeum murinum Keith E. Hoffmaster 1927-3-25 s.n. Orange Santa Ana. Comment
  SEINET11678404  Hordeum murinum J. F. Bright, Wyman, C. 1933-1 8206 Orange DelToro Comment
  HSC94292  Hordeum murinum subsp. murinum D. Atwood 1993-3-28 17710 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. 0 Comment
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Jul 8 2010
  POM224742  Horkelia cuneata subsp. puberula Philip A. Munz 1936-4-20 14606 Orange Laguna Beach, Mt. Olympus 152 Comment
  SEINET187061  Horkelia cuneata subsp. puberula P. A. Munz 1936-4-20 14606 Orange Mt Olympus Laguna Beach 152 Comment
  HSC78999  Horkelia cuneata var. puberula Steve Boyd 1981-5-13 Orange Pelican Hill, Irvine Ranch property in the San Joaquin Hills S of Corona del Mar Comment
  CAS-BOT-BC537312  Horkelia cuneata var. puberula Philip A. Munz 1936-4-20 14606 Orange Mt. Olympus, Laguna Beach 152 Comment
  CAS-BOT-BC312647  Hymenothrix loomisii 1943-12-1 s.n. Orange Costa Mesa Comment
  UCR209666  Hypericum canariense Fred M. Roberts 2008-5-8 6946 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near the northeast Gate, 0.5 km west of the Marine Institute, Dana Point Harbor 75 Comment
  RSA732168  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
  SD113017  Hypochaeris glabra Darley F. Howe 1979-4-29 5085 Orange Newport Area. 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
  UCR209349  Hypochaeris glabra Fred M. Roberts 2008-4-14 6892 Orange Santa Ana Mountains, Upper Weir Canyon, east fork, 3.4 km eat of Robbers Peak, Irvine Ranch Conservancy 433 Comment
  RSA562807  Iris germanica Steve Boyd, Timothy S. Ross 1992-5-20 7479 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness area in Lucas Canyon along foot trail upstream from edge of old roadgrade to uper homestead (corugated steel building). 351 Comment
  RSA783567  Isocoma J. D. Olmsted 1959-5-1 519 Orange 500 yards west of Oat Flat past Johnson's dam; 9 mi. SW of Corona. 793 Comment
  JEPS19115  Isocoma menziesii var. vernonioides L. M. Booth 1932-6-29 1225 Orange Newport Bay Comment
  POM147499  Isocoma menziesii var. vernonioides F. M. Reed 1928-4-27 5701 Orange Between Laguna and Newport. Comment
  RSA743518  Isocoma menziesii var. vernonioides Fred M. Roberts, Carol A. Roberts 2008-9-28 7114 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 75 Comment
  UC892011  Isocoma menziesii var. vernonioides Carl B. Wolf 1932-6-28 3807 Orange on Bixby Ave; Bryant Ranch 91 Comment
  RSA0031742  Isocoma menziesii var. vernonioides R. F. Thorne 1977-11-21 50822 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA93  Isolepis cernua J. T. Howell 1927-7-6 277 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  CHSC37641  Isomeris arborea T. B. Devine 1981-7-31 738 Orange Bayside Drive, ca. 1/2 mi N of its junction with Jamboree Road, Newport Back Bay. 6 Comment
  RSA696236  Isomeris arborea Olive Bernice Spears 1932-5-5 s.n. Orange Corona del Mar Comment
  UCR237932  Isomeris arborea Mark A. Elvin 2003-2-2 2258 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UC72699  Isomeris arborea E. A. Zumbro 1902-1 372 Orange Comment
  POM361345  Jaumea carnosa L. C. Wheeler 1932-6-22 846 Orange Newport Bay, Orange County Comment
  SBBG65763  Jaumea carnosa M. N. Ackley -Sep-1928 1198 Orange Sunset Beach 8 Comment
  UCSB52422  Jepsonia parryi Roberts, Fred; Polek, M. 1982-11-7 Orange Santa Ana Mtns, Lion Canyon, Chiquito Basin, Trail, 3.6km S Blue Jay Campground; 2.4km, NNE Lower San Juan Picnic Ground 800 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
  RSA0011055  Juglans californica D. E. Bramlet 2008-6-5 4291 Orange Santa Ana Mtns foothills: Tributary to Weir Cyn., 731 m N of the SCE Transmission Line & 229m west of Weir Canyon Road. 257 Comment
  POM9756  Juglans californica P. A. Munz 1921-2-26 4682 Orange Brea Canyon. 305 Comment
  UCR246398  Juglans hindsii R. E. Riefner Jr. 2010-9-8 10- 121 Orange South Coast, city of Laguna Beach, Laguna Canyon, c. 0.15 mi south of El Toro Road on east side of Laguna Canyon Road 75 Comment
  RSA0011199  Juglans nigra A. C. Sanders, Fred M. Roberts 2008-6-17 35477 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCR242861  Juglans nigra R. E. Riefner Jr. 2011-8-25 11- 115 Orange Trabuco Canyon, Trabuco Canyon Road c. 1 mi northwest of O'Neill Regional Park 319 Comment
  SD255201  Juglans regia R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49798 Orange Santa Ana Mountains: Trabuco Canyon, below Yaeger Mesa. Comment
  CAS-BOT-BC110027  Juncus acutus Peter H. Raven 1957-9-28 11401 Orange Just north of Huntington Beach. 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
  UCR157713  Juncus bufonius Adrian Wolf 1998-5-15 274 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  UCR138410  Juncus rugulosus Scott D. White, Brian Leatherman 1997-6-12 5317 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
  JEPS74130  Juncus textilis Lawrence M. Booth 1932-6-7 1159 Orange Newport Lagoon Comment
  RSA644963  Juncus textilis R. E. Riefner, Adrian Wolf 2000-1-24 20 -108 Orange NCCP North Ranch Policy Plan Area: Fremont Canyon: N of Santiago Creek & immediately N. of major stream fork. 305 Comment
  RSA21064  Juncus xiphioides Ramon Valverde 1938-8-4 9440 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  UC520018  Juncus xiphioides Joseph Andorfer Ewan 1932-7-9 7484 Orange 4 mi below Rincon (Prado); Santa Ana River Comment
  UCR174211  Juncus xiphioides A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33046 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCR193765  Juncus xiphioides A. C. Sanders, Fred M. Roberts 2008-7-3 35704 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
  RSA0042742  Juniperus rigida var. conferta R. E. Riefner Jr. 2012-10-21 12 -521 Orange City of Newport Beach, Corona del Mar, ca. 0.5 mi S. from the intersection of Poppy Ave./ Ocean Blvd. at Little Corona Beach. 12 Comment
  RSA25894  Keckiella antirrhinoides Jenkins 1929-2-6 9858 Orange Claymine Canyon 213 Comment
  RSA293256  Keckiella antirrhinoides D. C. Michener 1980-6-5 3666 Orange Santa Ana Mtns near El Cariso. Steep slopes at head of Dickey Canyon (Alberhill Quadrangle) with Asenostoma. 900 Comment
  CAS-BOT-BC235723  Keckiella cordifolia F. W. Pennell; E. M. Harvey 1949-6-29 26806 Orange Ortega Highway, above San Juan Capistrano 365 Comment
  RSA293304  Keckiella cordifolia D. C. Michener 1980-5-15 3662 Orange San Juan River drainage. Northwest facing slope in chaparral along unnamed creek in sect 34-35 (Sitton Peak Quadrangle). 500 Comment
  RSA401708A  Keckiella cordifolia N. C. Cooper 1949-5-1 3938 Orange San Juan Canyon 762 Comment
  RSA659638  Keckiella cordifolia T. A. Daubert 1991-5-26 676 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island Comment
  RSA791873  Keckiella cordifolia Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49620 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station Comment
  SEINET10499891  Keckiella cordifolia James S. Miller 1992-5-8 Miller 7452 Orange 2 mi E of the border of Cleveland National on California route 74. 310 Comment
  RSA718971  Kickxia elatine Fred M. Roberts, Robert L. Allen 2006-10-8 6409 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
  RSA184190  Kochia scoparia I. L. Wiggins 1966-5-4 20656 Orange Along railroad embankment of A.T. & S.F. R.R., on SW side of Orangethorpe avenue, near Esperanza siding. Comment
  RSA403466  Koeleria macrantha Albert J. Perkins 1914-6-14 s.n. Orange Santiago Peak. Comment
  RSA734810  Koeleria macrantha A. C. Sanders, Fred M. Roberts 2008-3-25 34579 Orange Saddle on ridge near head of Weir Canyonm, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  RSA749490  Koeleria macrantha Fred M. Roberts, Linda Farley 2008-3-28 6824 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
  CAS-BOT-BC174783  Koelreuteria bipinnata T. B. Salvato; Katie Kurtz; Mitch Provance 2006-10-15 1903 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  CDA7112  Koelreuteria bipinnata T. B. Salvato, K. Kurtz, Mitch Provance 2006-10-15 1903 Orange South Coast; Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Dirve. Comment
  RSA725510  Koelreuteria bipinnata Fred M. Roberts 2007-9-11 6563 b 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
  RSA725536  Lactuca serriola Fred M. Roberts, Robert L. Allen 2007-9-28 6610 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  RSA752818  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-8-7 36001 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA894  Lactuca serriola J. T. Howell 1927-7-27 496 Orange Near ranch, Rancho Santa Ana 152 Comment
  CHSC26388  Laennecia coulteri James Henrickson 1970-8-22 5297 Orange 2 1/2 miles NNW of Huntington Beach in northern part of Bolsa Chica Salt Marsh. Near oilwell sites. 0 Comment
  UCSB57553  Laennecia coulteri Roberts, Fred 1985-8-19 Orange Crystal Cove State Park; Pelican Point, border of old stable site, 0.1 km. from ocean; UTM 3715800mN, 420900mE 20 Comment
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Feb 22 2019
  IRVC27753  Lamarckia aurea Mark A. Elvin 2004-5-2 3427 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA0127415  Lamarckia aurea Fred M. Roberts 2016-3-17 8010 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  UCR99880  Lamarckia aurea Scott D. White 1993-3-5 1130 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  RSA588850  Lampranthus multiradiatus Fred M. Roberts 1989-10-4 4433 Orange South Laguna: south of, and near west end of Monterey Street, 0.6km W Aliso Peak. 33 Comment
  RSA695661  Lasthenia californica R. H. McArthur 1934-3-25 s.n. Orange Limestone Canyon Comment
  RSA92925  Lasthenia californica F. W. Peirson 1925-4-11 5746 Orange 5 miles south of Laguna Beach. Comment
  RSA695491  Lasthenia coronaria Minor Warne 1934-04 s.n. Orange Laguna Canyon Forks Comment
  RSA749293  Lasthenia coronaria Fred M. Roberts 2008-4-22 6921 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
  UCR203976  Lasthenia coronaria D. E. Bramlet, J. E. Harrison 2008-4-3 4149 Orange Peninsular Range; Santa Ana Mountains, South Bee Canyon, Bowerman landfill site, 1.2 km south of the Bee Canyon access road, and 122 m west of the active landfill 224 Comment
  CAS-BOT-BC329171  Lasthenia glabrata subsp. coulteri E. R. Johnson 1931-4-7 1937 Orange East end camp, Bryant Ranch, Los Alamitos 9 Comment
  IRVC21758  Lasthenia glabrata subsp. coulteri B. L. Parry 1985-5-2 79 Orange old stables site, near Pelican Point, 1.6km SE Pelican Hill; 1.1km NW Crystal Cove, Crystal Cove State Park 25 Comment
  RSA0039565  Lasthenia glabrata subsp. coulteri R. H. McArthur 1934-3-8 s.n Orange S. of Ed Martin's Airport. Comment
  UC149282  Lasthenia gracilis LeRoy Abrams 1903-4-18 3265 Orange near Capistrano; Trabuco arroyo Comment
  RSA545171  Lasthenia gracilis Timothy S. Ross, Amy Kendall 1992-4-15 6194 Orange San Clemente Island. Central upland portion of the island, SW of 'Ledge'; 236 degrees SW, ca 170m distant from summit of 'Ledge.' 393 Comment
  SEINET956187  Lathyrus strictus P. C. Everett 1935-1 6292 Orange Santa Ana Mts. Baker Canyon, West Ladd Truck Trail. 1000 Comment
  RSA785201  Lathyrus vestitus Dick Newell, Don Millar 2010-4-20 016 Orange top of Serrano Ridge, 1 km west of the Nix Center/Laguna Canyon Rd. 229 Comment
  RSA405743  Lathyrus vestitus subsp. alefeldii Anstruther Davidson 1923-4-1 s.n. Orange Trabuco Canyon. Comment
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Jan 11 2016
  IRVC17039  Lathyrus vestitus subsp. laetiflorus G. Howard 1965-3-25 Orange [Newport] Back Bay. Newport Beach Comment
  RSA542543  Lathyrus vestitus subsp. laetiflorus Fred M. Roberts, T. Sholars, B. Stechmeyer 1988-3-29 3887 Orange Santa Ana Mountains: Main Divide Truck Trail, 1.0 km by road NW Blue Jay Campground, c.a. 2.1 km ESE Los Pinos Peak. 1024 Comment
  CHSC56083  Lathyrus vestitus var. vestitus Mike Cecchini 1978-6-23 1 Orange Ca 1 km northeast of Tucker Wildlife Sanctuary and 0.5 km southeast of Modjeska Reservoir; 10.5 km southeast of Tustim. 457 Comment
  SFV1820  Lathyrus vestitus var. vestitus E. R. Blakley 1957-4-26 2070 Orange State Route 140, 5 miles east of Mission San Juan Capistrano. 122 Comment
  UCR4078  Lavatera assurgentiflora Carole Sims 1965-3-28 s.n. Orange South Coastal Plains, Salt Creek Road off Pacific Coast Highway, between South Laguna and Dana Point 18 Comment
  RSA705543  Leersia oryzoides R. E. Riefner Jr. 2003-12-14 3 -458 Orange Featherly Regional Park, Santa Ana River, vicinity of La Palma Avenue and Lomas de Yorba West, S of Gypsum Canyon Road. 105 Comment
  IRVC29729  Lemna Mark A. Elvin, Barry S. Nerhus 2006-11-4 5243 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  IRVC18681  Lepechinia cardiophylla Karlin G. Marsh 1981-5-1 s.n. Orange Santa Ana Mtns: Bald Peak Peninsular Ranges 1159 Comment
  RSA1076  Lepechinia cardiophylla J. T. Howell 1927-6-26 225 Orange Claymine Canyon, near Sierra Peak 610 Comment
  UCR237830  Lepidium Mark A. Elvin 2003-2-2 2263 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UC1719509  Lepidium densiflorum D. Atwood 1993-3-27 17692 Orange Corona del Mar State Park along Newport Coast Drive 0 Comment
  UCD115425  Lepidium draba P. B. Kennedy 1924-2-13 s.n. Orange Wintersberg. Comment
  IRVC1088  Lepidium lasiocarpum D. Van Gorden 1965-4-2 Orange Anaheim and Meyer Field. Costa Mesa Comment
  POM180599  Lepidium lasiocarpum L. R. Abrams 1917-6-23 6569 Orange Balboa Comment
  POM183940  Lepidium lasiocarpum P. A. Munz 1932-3-29 12191 Orange Costa Mesa. Comment
  SD236245  Lepidium latifolium A. C. Sanders, Fred M. Roberts 2008-9-18 36090 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon ca. 0.5-0.8 miles above the highway bridge (El Toro 7.5'Q) 299 Comment
  IRVC1089  Lepidium nitidum J. Schram 1965-5-8 Orange Corona del Mar, Corona Highlands. Newport Beach Comment
  RSA184170  Lepidium nitidum I. L. Wiggins 1966-3-5 20511 Orange 1/2 mile W of El Toro along Hwy 18 Comment
  CAS-BOT-BC60081  Lepidium virginicum var. menziesii John Thomas Howell 1927-6-20 2559 Orange On north side of Santa Ana Canyon. 228 Comment
  POM202605  Lepidium virginicum var. pubescens L. M. Booth 1932-5-24 24 Orange West Side of Newport Lagoon. Comment
  CAS-BOT-BC329359  Lepidospartum squamatum Helen D. Geis 1902-1-1 s.n. Orange Santiago Canon Comment
  OBI77796  Lepidospartum squamatum J. & B. Sample, B. Sample 1991-8-12 5591 Orange E of San Juan Capistrano on hwy 74 610 Comment
  RSA1446  Lepidospartum squamatum J. T. Howell 1929-2-6 1223 Orange Floor of Claymine Canyon, Santa Ana Mts 152 Comment
  RSA734396  Lepidospartum squamatum Keith E. Hoffmaster 1935-4-14 598 Orange Trabuco creek., 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. Comment
  UCR58731  Lepidospartum squamatum Reid Moran 1975-11-21 22741 Orange Santa Ana Mtns., bottom of lower Trabuco Canyon Comment
  CAS-BOT-BC274018  Leptochloa fusca subsp. uninervia Peter H. Raven 1961-10-15 16851 Orange Santa Ana River Bed at Anaheim Street crossing, Anaheim 60 Comment
  POM47583  Leptochloa fusca subsp. uninervia I. M. Johnston 1924-8-29 s.n. Orange 1 mile north of Santa Ana. Comment
  RSA87135  Leptochloa fusca subsp. uninervia F. W. Peirson 1924-8-29 5062 Orange Santa Ana. Comment
  CDA23619  Leptochloa uninervia A. Thomas, Mark A. Elvin 2006-9-23 609233 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  RSA696979  Leptodactylon californicum Keith E. Hoffmaster 1927-4-8 s.n. Orange Santa Ana Mountains Comment
  VVC381  Leptodactylon californicum P. J. MacKay 1990-5-25 xn Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  SEINET6969968  Leptodactylon californicum W. P. Vestal, A. G. Vestal 1955-3-24 3461 Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  POM10156  Leptosiphon androsaceus P. A. Munz, R. D. Harwood 1920-4-24 5773 Orange Santa Ana Mountains 366 Comment
Read comments
Sep 17 2011
  RSA12929  Leptosiphon androsaceus C. B. Wolf 1935-4-7 6319 Orange Mouth of San Juan Hot Springs Canon, at san juan Hot Springs 213 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
  UCR197699  Lessingia filaginifolia A. C. Sanders, Fred M. Roberts 2008-9-18 36085 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  RSA172340  Leymus condensatus R. F. Thorne 1963-7-26 32843 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mountains, Cleveland National Forest 762 Comment
  POM202496  Leymus triticoides L. M. Booth 1932-6-7 1156 Orange Newport Lagoon. Comment
  UCR113455  Lilium humboldtii subsp. ocellatum R. E. Riefner Jr. 2000-6-30 20- 594 Orange Santa Ana Mountains, North Ranch Policy Plan Area, N Fremont Canyon at Donaldson Ranch, adjacent to powerline crossing on W fork of Fremont Cyn drainage 427 Comment
  CDA23580  Limonium binervosum A. Thomas, Mark A. Elvin 2006-9-23 609237 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  RSA554  Limonium californicum var. mexicanum J. T. Howell 1927-10-29 771 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA68751  Limonium californicum var. mexicanum F. W. Peirson 1924-8-29 5048 Orange 2.5 miles from Balboa on road inland along creek. Comment
  RSA0054876  Limonium commune var. californicum Keith E. Hoffmaster 1934-10-7 237 Orange Near Santa Ana. Comment
  RSA689534  Limonium duriusculum R. E. Riefner 2002-5-4 20 -99 Orange Upper Newport Bay, Jamboree Rd at Bayview Dr. 15 Comment
  POM311754  Limonium perezii Karen Hosterman 1956-4-7 500 Orange Laguna Beach city, on a cliff overlooking Crescent Bay. Santa Ana Mtn range, Pacific Ocean drainage. 2 Comment
  UCR106280  Limonium perezii B. G. Pitzer, M. Georgiady 1997-4-5 3091 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
  SEINET6045534  Linanthus E. W. Lathrop 1974-6-27 7420 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon. Cleveland National Forest. Comment
  CAS-BOT-BC226773  Linanthus californicus B. D. Stark 1931-3-12 1938 Orange West slope of Santa Ana Mts., 3 mi. no. of Modjeska's Home 304 Comment
  RSA468463  Linanthus californicus Albert J. Perkins 1920-5-16 s.n. Orange Trabuco Canyon, Comment
  SD114196  Linanthus californicus Darley F. Howe 1946-6-3 1413 Orange Santa Ana Mountains. Comment
  UCD39066  Linanthus californicus Beecher Crampton 1963-5-7 6789 Orange 11 miles northeast of San Juan Capistrano, State Hwy. 74, Lower San Juan Canyon, Santa Ana Mtns. Comment
  RSA618  Linanthus californicus subsp. glandulosus J. T. Howell 1927-6-26 229 Orange Claymine Canyon, near Sierra Peak. 457 Comment
  RSA584716  Linanthus californicus subsp. glandulosus Fred M. Roberts 1989-5-18 4370 Orange Santa Ana Mountains: Upper Gypsum canyon, above ridge road, ca. 6.4 km WSW Sierra Peak. 415 Comment
  JEPS89271  Linanthus dianthiflorus Rimo Bacigalupi and L. Heckard, P. C. Hutchison 1962-3-16 8233 Orange 2 mi n Doheny Beach State Park (fields above ocean) Comment
  RSA678735  Linanthus dianthiflorus Fred M. Roberts, Carol A. Roberts, Robert Allen 2003-5-11 5860 Orange Dana Point Headlands: hilltop, 0.6km SSW Richard Henry Dana School south of Pacific Coast Highway and north of Scenic Drive. 73 Comment
  RSA734640  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-3-25 34559 Orange Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA753417  Linanthus dianthiflorus D. E. Bramlet 2008-3-31 4137 Orange 223m E of Upper Hicks Haul Rd, Trib. to Limestone Cyn, 1km S of Santiago Cyn Rd. 328 Comment
  UCR191778  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-3-25 34570 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  UCR191782  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-3-25 34559 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCSB48049  Linanthus dianthiflorus Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point: hills, 1.0 km N Dana Hills High School; 1.9 km W Marco Forster Junior High School 30 Comment
  CHSC116475  Linanthus 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
  RSA752710  Linaria canadensis Fred M. Roberts 2008-3-19 6787 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 60 Comment
  RSA0054843  Linaria canadensis Keith E. Hoffmaster 1927-4-2 304 a,b,c,d Orange Santa Ana Mts. San Onofre. 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
  POM8811  Lithophragma affine subsp. mixtum P. A. Munz, R. D. Harwood 1920-4-24 3782 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA162696  Lithophragma affine subsp. mixtum J. D. Olmsted 1959-4-23 461 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  RSA704892  Lobularia maritima Doug Causey 1972-5-1 s.n. Orange 3 mi. E Irvine Lake Comment
  RSA0069230  Logfia arizonica Fred M. Roberts, Megan Lulow 2009-3-18 7135 Orange Santa Ana Mtns.: Lomas De Santiago: Loma Ridge, Lower Hicks Canyon, about 350 meters from south side of Haul Road, 1.9 km E Rattlesnake Cyn. Reservoir Dam and 2.1 km W Bee Peak. 172 Comment
  CAS-BOT-BC269108  Lolium perenne Scott D. White 1997-3-26 4810 Orange Univ. of Calif. Irvine Campus: Site of proposed student recreation center, east of main campus. Existing Farm School and adjacent grasslands (horse pasture) between California Ave. and Culver Dr. 30 Comment
  RSA688868  Lolium perenne Fred M. Roberts 2003-5-1 5670 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.49km S Gato Gate and just west of Cristianitos Rd. (San Clemente) 84 Comment
  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
  RSA699306  Lolium perenne subsp. multiflorum Keith E. Hoffmaster 1927-5-26 107 Orange Santa Ana 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
  UCR230833  Lonicera subspicata Dick Newell, Judy Booth 2011-6-19 178 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, above Santiago Canyon 763 Comment
  RSA455384  Lonicera subspicata var. denudata F. R. Fosberg 1931-6-21 S- 5136 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA769336  Lotus E. W. Lathrop 1974-6-27 7420 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA732055  Lotus hamatus A. C. Sanders, Fred M. Roberts 2008-3-25 34520 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA0006681  Lotus hamatus J. T. Howell 1927-6-8 56 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA679091  Lotus heermannii var. heermannii Fred M. Roberts 2003-7-24 5968 Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub. 27 Comment
  RSA734806  Lotus humistratus A. C. Sanders, Fred M. Roberts 2008-5-6 35254 Orange Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UC1543068  Lotus purshianus var. purshianus Donald G. Nelson 1935-7-5 345 Orange E. Elm St., Brea Brea Comment
  SEINET3562996 Image available Lotus salsuginosus Lawrence M. Booth 1932-5-19 1073 Orange Newport Bay Comment
  UCR191350  Lotus salsuginosus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34637 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  IRVC19937  Lotus salsuginosus subsp. salsuginosus Gordon A. Marsh, K. G. Marsh 1983-3-2 Orange burn area on ridge between Coal and Gypsum Canyons, Santa Ana Mountains Comment
  HSC1876  Lotus scoparius J. W. Johnson 1961-2-19 Orange Newport Beach, above upper Newport Bay Comment
  POM201833  Lotus scoparius L. M. Booth 1932-5-12 1025 Orange Newport Bay. Comment
  RSA5274  Lotus scoparius B. D. Stark 1933-1-17 4518 Orange Dana Point. 15 Comment
  RSA614343  Lotus scoparius B. Pitzer 1996-4-30 2802 Orange San Joaquin Hills Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy). 15 Comment
  IRVC2251  Lotus scoparius subsp. scoparius C. Hinesly 1965-1-30 Orange [Newport] Back Bay. Newport Beach Comment
  RSA751166  Lotus strigosus D. E. Bramlet 2008-5-15 4271 Orange Upper Borrego Cyn. 152m east of the access road and 1.7km west of Santiago Cyn Road 450 Comment
  UCR173876  Lotus strigosus Scott D. White 2003-3-21 8801 Orange Peninsular Range/Santa Ana Mtns, Foothills [above] Rancho Mission Viejo; E-facing slopes above an unnamed tributary to San Juan Creek 183 Comment
  UCR191323  Lotus strigosus A. C. Sanders, Fred M. Roberts 2008-4-8 34747 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  POM9282  Lotus strigosus P. A. Munz, R. D. Harwood 1920-4-24 3770 Orange Sierra [Freemont] Canyon 366 Comment
Read comments
Sep 17 2011
  RSA627762  Lotus unifoliolatus Scott D. White 1998-5-31 6571 Orange UCI Campus; Southwest of Farm School site (now proposed as Student Rec. Ctr.) 24 Comment
  RSA38193  Ludwigia peploides subsp. peploides P. A. Munz 1946-10-2 11557 Orange Bank of Santa Ana River, Rancho Santa Ana. 122 Comment
  RSA48859  Ludwigia peploides subsp. peploides J. C. Roos 1949-10-1 4685 Orange Doheney Beach. [Now Capistrano Beach] Comment
  POM201839  Lupinus L. M. Booth 1932-5-19 1072 Orange Newport Bay. Comment
  RSA0036357  Lupinus albifrons Andrew Wheeler 2009-5-12 s.n. Orange Long Canyon Road, between Blue Jay Campground and Convict Camp, 4 miles west of Lake Elsinore. Comment
  IRVC2287  Lupinus bicolor subsp. umbellatus McRae 1965-4-8 HS 0426 Orange Costa Mesa Southern Coastal Comment
  IRVC2288  Lupinus bicolor subsp. umbellatus H. Ellis 1965-3-18 HS 0428 Orange Corona Del Mar Beach Southern Coastal Comment
  IRVC2289  Lupinus bicolor subsp. umbellatus M. Savage 1965-4-4 HS 0427 Orange Corona Del Mar Southern Coastal Comment
  RSA619240  Lupinus densiflorus R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  SBBG103895  Lupinus excubitus B. Pitzer, S. Hemstreet 1992-5-27 1964 Orange USFS Rd 3S04 to Blue Jay Group Cmpgrd, off St Hwy 74, ca. 2 air mi W of El Cariso Cmpgrd 762 Comment
  SD255174  Lupinus excubitus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49802 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  CAS-BOT-BC216672  Lupinus excubitus subsp. hallii Alice Eastwood; John Thomas Howell 1937-4-24 3897 Orange Santa Ana Canyon Comment
  SEINET10452686  Lupinus excubitus subsp. hallii Stark 1933-2-3 STARK 19497 Orange Garden #6455 (from 1780 many generations). Comment
  CAS-BOT-BC216692  Lupinus excubitus var. excubitus C. B. Wolf 1931-3-25 1936 Orange 1 mile W of Esperanza, Along the Santa Fe RR, Santa Ana Canyon 106 Comment
  IRVC17057  Lupinus excubitus var. hallii A. S. Boughey 1969-5-3 430 Orange Black Star Canyon on seaward side near crest. Santa Ana Mountains Comment
  RSA0027775  Lupinus excubitus var. hallii Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49692 Orange Northern Santa Ana Mountains: Sierra Peak 900 Comment
  RSA699189  Lupinus hirsutissimus R. H. McArthur 1934-3-25 s.n. Orange Limestone Canyon Comment
  RSA619107  Lupinus latifolius subsp. parishii R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  UC718433  Lupinus latifolius var. parishii P. C. Everett 1935-6-19 7229 Orange Main Divide Motorway Bear Spring (Bear Spring); Santa Ana Mts., Bear Spring 1219 Comment
  CAS-BOT-BC217749  Lupinus longifolius E. R. Johnson 1932-4-15 2957 Orange Rancho Santa Ana, 1 mi. NW of Roundtop (Section 16) 457 Comment
  IRVC20486  Lupinus longifolius Fred M. Roberts, Karlin G. Marsh 1983-5-13 1046 Orange San Joaquin Hills: Laguna Canyon, Laguna Canyon Rd., 1.7km N Thurston Sch.; 6.4km SER Signal Peak. Southern Coastal 50 Comment
  UCR192070  Lupinus microcarpus A. C. Sanders, Fred M. Roberts 2008-5-6 35246 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UCR191351  Lupinus sparsiflorus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34638 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
  IRVC16567  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
  IRVC2335  Lupinus sparsiflorus subsp. sparsiflorus D. Frees 1965-3-13 s.n. Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  IRVC8674  Lupinus sparsiflorus subsp. sparsiflorus Charles W. Sexton 1965-3-27 s.n. Orange Ortega Highway out of San Juan Capistrano Southern Coastal Comment
  RSA414283  Lupinus sparsiflorus subsp. sparsiflorus M. B. Dunkle 1938-3-26 5234 Orange San Juan Canyon 30 Comment
  IRVC22220  Lupinus succulentus Fred M. Roberts, Gordon Marsh 1985-4-3 1612 Orange Irvine: Irvine Ranch, 1.2km W UCI campus center, Southern Coastal 24 Comment
  RSA660287  Lupinus succulentus Orlando Mistretta 1992-6-2 454 Orange Vicinity of Sierra Peak. (Historical Locality). Comment
  RSA88903  Lupinus succulentus E. K. Balls 1954-3-1 18850 Orange Botanic Garden, Santa Ana Canyon Comment
  IRVC2344  Lupinus succulentus Bruce Reynolds 1965-4-3 HS 0419 Orange Corona Del Mar: Lincoln Junior High School Southern Coastal Comment
  SEINET12154823  Lupinus succulentus J. F. Bright, Wyman, C. 1933-1 8101 Orange Santa Ana foothills Comment
  IRVC2356  Lupinus truncatus Jean Gilbert 1965-4-3 s.n. Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA1700  Lupinus truncatus Carl B. Wolf 1931-3-6 1837 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA598921  Lupinus truncatus Scott D. White 1997-3-28 4851 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 Comment
  RSA678723  Lupinus truncatus Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5852 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  SD143894  Lupinus truncatus Scott D. White 1997-3-28 4851 Orange Santas Ana Mountains; above Modjeska Canyon. 424 Comment
  IRVC15186  Lupinus truncatus Gordon A. Marsh, K. Conrey 1975-4-14 s.n. Orange Lomas de Santiago: Lomas Ridge, 1/4mi NNW Rattlesnake Canyon Reservoir Dam Southern Coastal Comment
  RSA699024  Lycium J. R. Bruff 1927-3-16 2 -R Orange Newport Bluff Comment
  CAS-BOT-BC233470  Lycium californicum Helen D. Geis 1902-1-1 s.n. Orange Unspecified Comment
  CAS-BOT-BC233471  Lycium californicum Albert N. Steward 1958-3-20 7396 Orange East of Daylight Pass, Death Valley National Monument 1219 Comment
  OBI9188  Lycium californicum Dieter H. Wilken, Timothy LeBlanc 1966-1-7 621 Orange Dana Point, N of San Juan Capistrano 3 Comment
  POM4215  Lycium californicum D. L. Crawford 1916-7-24 741 Orange Laguna Beach. Comment
  RSA0073647  Lycium californicum Fred M. Roberts 2010-3-12 7176 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
  RSA0014845  Lythrum californicum Scott D. White 1997-6-12 5315 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  UCSB25001  Lythrum hyssopifolia Booth, L. 1932-7-19 Orange Bolsas Creek Comment
  RSA0016029  Lythrum tribracteatum Tony Bomkamp 1995-5-24 s.n. Orange Rancho Mission Viejo. Ridgeline and lots 1 mi N of Ortega Hwy and W of Canada Gobernadora. Comment
  CAS-BOT-BC334724  Madia gracilis John Thomas Howell 1927-6-26 2613 Orange Claymine Canyon, north Santa Ana Mountains 243 Comment
  POM201634  Malacothamnus fasciculatus L. M. Booth 838 Orange Santa Ana Canyon. Comment
  RSA433313  Malacothamnus fasciculatus F. R. Fosberg 1931-6-21 S- 5101 Orange Silverado Canyon, Santa Ana Mts. Comment
  RSA708288  Malacothamnus fasciculatus Scott D. White, Jennifer H. Jones 2005-3-31 10861 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  RSA59172  Malacothamnus fasciculatus E. K. Balls 1950-7-17 14928 Orange Native to Botanic Garden. 183 Comment
  RSA95321  Malacothamnus fasciculatus F. W. Peirson 1924-5-31 4662 Orange Sea bluffs at Laguna Beach. Comment
  RSA717705  Malacothrix saxatilis Fred M. Roberts 2008-5-16 6978 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
  UCD134433  Malacothrix saxatilis B. Pitzer 1997-11-8 3371 Orange Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point ca. 1.75 miles up the canyon. 30 Comment
  UCR193543  Malacothrix saxatilis A. C. Sanders, Fred M. Roberts 2008-7-3 35669 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR240074  Malacothrix saxatilis Dick Newell 2012-9-29 301 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 2 Comment
  RSA743460  Malacothrix saxatilis var. saxatilis Fred M. Roberts 2008-7-10 7068 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
  RSA549990  Malacothrix saxatilis var. tenuifolia Scott D. White 1992-9-23 857 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
  RSA732276  Malacothrix saxatilis var. tenuifolia A. C. Sanders 2008-4-29 35120 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
  POM225244  Malacothrix saxatilis var. tenuifolia P. A. Munz 1936-6-30 14177 Orange road at LaVida Springs, carbon Canyon. Comment
  POM7072  Malacothrix saxatilis var. tenuifolia L. T. Street, G. Williams 1919-5-10 2719 Orange Turnbull Canyon. Near Whittier 305 Comment
  UCR236677  Malephora crocea Fred M. Roberts, Lee Ann Carranza, Jeff Roseler 2008-10-9 7126 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, at base of cliff along south edge, 0.7 km west of Marine Institute, Dana Point Harbor 3 Comment
  RSA48858  Malephora crocea J. C. Roos 1949-10-1 4687 Orange Doheney Beach. [Now Capistrano Beach] Comment
  IRVC23145  Malosma laurina Fred M. Roberts 1985-7-11 2027 Orange San Joaquin Hills: Laguna Canyon, Laguna Canyon Road near Laguna Lakes, 5.0km ENE Signal Peak. southern coastal 112 Comment
  RSA696480  Malosma laurina E. K. Robinson 1934-10-23 s.n. Orange Santa Ana Comment
  RSA696481  Malosma laurina J. R. Bruff 1934-6-30 586 Orange High school campus Comment
Read comments
Sep 13 2013
  UCR140791  Malosma laurina Robin G. Marushia 2004-5-4 017 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  RSA716498  Malva nicaeensis Fred M. Roberts 2005-5-13 6189 Orange San Juan Capistrano; Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  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
  HSC15991  Malva parviflora D. W. Snell 1964-3-22 2 Orange 1/2 mi. S of Imperial Hwy., 1 mi. W of Yorba Linda. Comment
  UCSB48098  Malva parviflora Roberts, Fred 1981-4-11 Orange Ortega Hwy: Hwy 74 5.2km E San Juan Capistrano near San Juan Creek crossing 52 Comment
  HSC79313  Malva parviflora W. R. Marsh Aug 1972 37 Orange Between Artesia and Buena Park, E side of Artesia Ave., 1.5 mi. NW of Western Ave. 23 Comment
  RSA678727  Malvaviscus arboreus Fred M. Roberts, Leo Song 2002-8-1 562 Orange San Joaquin Hills: Laguna Beach, South flank Temple hill, between Nyes Place and Balboa Ave.; 0.9 km ENE Sugarloaf pt. 183 Comment
  RSA234536  Malvella leprosa James Henrickson 1970-7-25 5072 Orange 3 miles NE of Huntington Beach at far northern end of Bolsa Chica Salt Marsh. 0 Comment
  UCR16327  Malvella leprosa N. J. Moriarty 1973-5-20 - 2 Orange Huntington Beach, 0.7 mi. north of Golden West Blvd. on west side of Pacific Coast Highway Comment
  RSA801986  Marah macrocarpa var. macrocarpa Minor Warne 1934-2-1 s.n. Orange Santiago Canyon Comment
  RSA749354  Marrubium vulgare Fred M. Roberts 2008-4-15 6903 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn., east ridge, Conservation Trail, 1.6 km ESE Rattlesnake Reservoir dam and 2.7 km WSW Bee Peak, Irvine Ranch Conservancy. 172 Comment
  UCSB48088  Marrubium vulgare Roberts, Fred 1981-5-2 Orange Camino Capistrano, 1.7km N Crown Valley Parkway 49 Comment
  UC1925602  Marsilea drummondii R. E. Riefner Jr. 2008-6-22 08 -209 Orange City of Yorba Linda, Santa Ana Canyon, La Palma Ave. near Old Village Road; UTM (NAD 83) 11S 0433046E, 3747903N Comment
  RSA590719  Marsilea vestita R. E. Riefner 1994-4-15 94 -319 Orange Dana Hills, w ca 2 mi. of Cooks Reservoir Comment
  UCR281940  Matricaria discoidea R. E. Riefner Jr. 2017-3-29 17- 117 Orange South Coast, San Clemente, San Clemente State Beach, North-central area, south of Ave. Calafia 39 Comment
  CAS-BOT-BC348163  Matricaria discoidea Ira L. Wiggins 1966-3-22 20553 Orange Silverado Canyon about 1/2 mi. below entrance to Cleveland National Forest Comment
  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
  UCSB56677  Matthiola incana Roberts, Jr., Fred 1984-2-4 Orange South Laguna; Aliso Canyon near mouth, 0.7 km. WNW Aliso Peak 15 Comment
  RSA732050  Medicago A. C. Sanders, Fred M. Roberts 2008-4-8 34739 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
Read comments
Oct 19 2016
  IRVC19532  Medicago minima R. L. Allen 1983-4-13 A 638 Orange Santa Ana; 3030 Camille St. at Arapaho. Southern Coastal Comment
  UCR192467  Medicago polymorpha A. C. Sanders, Fred M. Roberts 2008-3-25 34535 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA184191  Medicago polymorpha I. L. Wiggins 1966-3-16 20524 Orange 1 mile above Rangers house Firestone Boy Scouts Reservation. Comment
  RSA678730  Medicago polymorpha Fred M. Roberts, Laura Cohen 2000-3-24 5267 Orange Rancho Mission Veijo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 Comment
  RSA755559  Medicago rigidula A. C. Sanders, Fred M. Roberts 2008-3-25 34527 Orange Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  SD241018  Medicago rigidula A. C. Sanders, Fred M. roberts 2008-3-25 34527 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA746516  Medicago rigidula R. E. Riefner Jr. 2007-4-1 07 -165 Orange City of Laguna Niguel, Laguna Niguel Regional Park, general vicinity of La Paz Rd. at Aliso Creek. 70 Comment
  RSA652177  Medicago sativa R. B. Newcom 1948-4-24 24 Orange 1 miles S.W. of Orange on south side of Tree [illegible] 54 Comment
  SBBG126176  Medicago truncatula A. C. Sanders with F. M. Roberts 2008-3-25 34521 Orange Weir Cyn, 4 mi ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
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Feb 28 2016
  SD260949  Medicago truncatula A. C. Sanders, Fred M. Roberts 2008-4-8 34739 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir. Ridge top. 351 Comment
  UCR241060  Melia azedarach Dick Newell, Don Millar, Judy Booth 2012-12-15 312 Orange Peninsular Range; Santa Ana Mtns., Fremont Canyon at mouth, 1/5 mi. NE of Irvine Dam spillway 206 Comment
  CAS-BOT-BC271187  Melica Helen D. Geis 1902-1-1 555 Orange Hill near Santa Ana Comment
  CAS-BOT-BC281595  Melica imperfecta John Thomas Howell 1927-6-17 2547 Orange N side of Santa Ana Canon 152 Comment
  RSA734284  Melica imperfecta A. C. Sanders, Linda Farley, Fred M. Roberts, David E. Bramlet 2008-4-1 34628 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 280 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
  UCR138332  Melica imperfecta R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 460 Orange Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 473 Comment
  UCR191418  Melica imperfecta A. C. Sanders, Fred M. Roberts 2008-4-8 34758 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
  UCR205982  Melica imperfecta Erynn Maynard 2007-8-2 s.n. Orange Peninsular Range; Santa Ana Mtns., Starr Ranch Sanctuary, 100 Bell Canyon Rd., city of Trabuco Canyon 488 Comment
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Sep 5 2010
  UCR209522  Melica imperfecta Fred M. Roberts 2008-4-16 6906 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
  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
  RSA0071936  Melica imperfecta CNPS Accuracy Assessment Team 2014-4-27 4617 Orange Weir Canyon. Comment
  HSC14999  Melilotus albus S. M. Clapp 1966-4-10 42 Orange Just S of Brea Canyon Rd., 1 mi. N of Brea Union Oil Property 61 Comment
  IRVC29824  Melilotus albus Artie Thomas, Mark A. Elvin 2006-9-23 609236 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  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
  UCR210375  Melilotus albus T. B. Salvato, Billy Deane 2006-10-16 1933 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  RSA401  Melilotus albus J. T. Howell 1927-7-19 443 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  HSC15021  Melilotus indicus S. M. Clapp 1966-4-7 29 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon. 152 Comment
  HSC7688  Melilotus indicus J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  IRVC2420  Melilotus indicus C. Hinesly 1965-2-13 s.n. Orange Costa Mesa; 257 Santa Isabel. Southern Coastal Comment
  IRVC2423  Melilotus indicus Chris Salcido 1965-5-8 s.n. Orange Newport Beach; [Newport] Back Bay. Southern Coastal Comment
  IRVC2425  Melilotus indicus Mike McCartin 1965-5-1 s.n. Orange Newport Beach; [Newport] Back Bay. Southern Coastal Comment
  SEINET12147961  Melilotus indicus Unknown 1933-1 8177 Orange Laguna Beach Comment
  RSA759267  Mentzelia Robt. Allen, Reginald Durant, David Taylor 2008-4-11 s.n. Orange Silverado Canyon, circa 1 air mile EENE above Maple Springs Forest Gate. 666 Comment
  RSA0014074  Mentzelia micrantha Fred M. Roberts 2008-5-28 7011 Orange Lomas de Santiago: Loma Ridge, south fork Rattlesnake Cyn., 2.0km above Rattlesnake Reservoir dam and 2.2km WNW Bee Peak. 230 Comment
  IRVC17950  Mesembryanthemum crystallinum A. B. McGee 1980-6-26 Orange San Joaquin Freshwater Marsh, west side, roadside. Irvine Comment
  IRVC27725  Mesembryanthemum crystallinum Mark A. Elvin 2004-5-2 3429 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  UC7687  Mesembryanthemum crystallinum O. B. Byram 1901-9-10 Orange Westminster Comment
  UCD96994  Mesembryanthemum crystallinum J. C. Roos 1965-6-16 s.n. Orange Dana Point. Comment
  UCR21112  Mesembryanthemum crystallinum S. Beckstrom-Sternberg 1980-5-25 52580 01 -6 Orange Jamboree Rd entrance to Hwy 73 South. Comment
  UCR220024  Mesembryanthemum crystallinum 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
  CAS-BOT-BC435234  Mesembryanthemum crystallinum Carl B. Wolf 1932-6-28 3791 Orange Bryant Ranch near fence 100 ft. south of north west corner of the N.W.40 of S.E.160 of Sec. 27. T4S R11W. Comment
  CHSC46067  Mesembryanthemum nodiflorum Sean P. Gallagher 1988-4-2 6 Orange W end of Bolsa Chica Channel. 0 Comment
  UC149125  Mesembryanthemum nodiflorum LeRoy Abrams 1903-4-20 3280 Orange near San Juan (along the seashore); Southern California Comment
  RSA588800  Micropus californicus Fred M. Roberts 1990-5-7 4600 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
  UC1595639  Micropus californicus var. californicus Steve Boyd and Orlando Mistretta 1991-5-9 6203 Orange se of Sierra Peak (crest of range at Oak Flat, just w of Riverside County line); Santa Ana Mountains 792 Comment
  RSA580940  Microseris douglasii subsp. platycarpha D. E. Bramlet 1994-4-30 2375 Orange At the base of the San Joaquin Hills and E of the Quail Hill area. Open flatlands 152m NW of the end of San Canyon Ave. and some 396m S of the San Diego Freeway. 42 Comment
  RSA642507  Microseris douglasii subsp. platycarpha D. E. Bramlet 1998-4-23 2608 Orange Chino Hills. Within the old Edison spur road, 20m east of the 500Kv towers. The site is 1.98km south of Telegraph Cyn. and 823m north of Blue Mud Cyn. 412 Comment
  UCR104615  Microseris douglasii subsp. platycarpha D. E. Bramlet 1995-4-29 2403 Orange Fairview Park, Costa Mesa. 366m north of intersection of Wilson and Canyon drive and 152 m west of the Canyon School 43 Comment
  UCR158096  Microseris douglasii subsp. platycarpha Adrian Wolf 1998-4-25 150 Orange South Coast, San Joaquin Hills, upper Coyote Canyon, 1 km NW of Signal peak, 2.5 km east of San Joaquin Reservoir 268 Comment
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Nov 21 2015
  RSA651496  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-21 2990 Orange Exposed terraces west of Blind Cyn. and North of Irvine Park. The site is 1.5 km west of Blind Canyon and 76m north of Irvine Park. This locality is 122m southwest of the MWD access road. 226 Comment
  RSA625808  Microseris heterocarpa Scott D. White 1998-4-24 6347 Orange Mission Viejo Area: Aliso Creek watershed, E of El Toro Rd. just N of jct. w/ Valley Vista Wy. Large proposed subdivision called Saddleback Meadow. 305 Comment
  RSA965  Microseris heterocarpa J. T. Howell 1928-2-25 832 Orange Orange county: near the ranch houses, Rancho Santa Ana. 152 Comment
  UC1577076  Mimulus A. Lewis May 1934 407 Orange San Juan Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  UC171021  Mimulus H. M. Hall 1913-5-28 9404 Orange Santiago Canyon Comment
  UC943905  Mimulus M. Van Rensselaer 1944-11-26 1876 Orange about 2 mi ne Laguna Beach; Laguna Canyon Comment
  UCR281570  Mimulus aurantiacus Mitch Provance 2017-6-9 617- 86 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.25 miles NNE of intersection with Castlewood Dr. 164 Comment
  RSA0051384  Mimulus aurantiacus subsp. australis Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49602 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  POM311165  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-9 1909 -D Orange North slope Laguna Canyon ca. 4 mi. east of Laguna Beach. Comment
  RSA420310  Mimulus aurantiacus var. pubescens R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  RSA448177  Mimulus aurantiacus var. pubescens Albert J. Perkins 1920-6-12 s.n. Orange Corona del Mar Comment
  UCSB48103  Mimulus aurantiacus var. pubescens Roberts, Fred; Fritzke, Sue 1982-4-3 Orange Santa Ana Mnts; Lower Hot Springs Canyon; Lazy W Road; 2.4km N by road of San Juan Guard Station; 1.4km NNW Juan Rancho Survey Mark 240 Comment
  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
  RSA33814  Mimulus aurantiacus var. puniceus N. C. Cooper 1944-6-4 1341 Orange San Juan Canyon. 305 Comment
  RSA448179  Mimulus aurantiacus var. puniceus N. C. Cooper 1944-6-4 1341 Orange San Juan Canyon. 305 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
  RSA790706  Mimulus brevipes L. C. Hull 1934-4-8 15 Orange Laguna Hills. Comment
  RSA749693  Mimulus cardinalis A. C. Sanders, Fred M. Roberts 2008-7-16 35832 Orange Lomas de Santiago, canyon c. 0.12 mi. below Dripping Spring, c. 7.5 mi. ESE of Tustin 360 Comment
  RSA17463  Mimulus cardinalis Percy C. Everett 1936-9-19 8271 Orange Silverado Canyon. 7/10 mi. eat of shadybrook resort. 701 Comment
  RSA759108  Mimulus cardinalis Robt. Allen, Reginald Durant 2008-9-28 s.n. Orange Laurel Spring, just below Harding Truck Trail. Survey Waypoint no. 85. Comment
  SEINET7908929  Mimulus cardinalis G. A. Klue 1972-1 12 Orange Silverado Canyon 610 Comment
  RSA17495  Mimulus clevelandii Percy C. Everett 1936-8-28 8233 Orange Main Divide Motorway, Head of Trabuco Canyon 1159 Comment
  RSA542495  Mimulus clevelandii Fred M. Roberts, Karlin G. Marsh 1987-5-14 3444 Orange Santa Ana Moutains: Upper Trabuco Canyon, Trabuco Canyon Trail , 1.4 km NE Los Pinos Peak 1121 Comment
  UC1294009  Mimulus clevelandii E. K. Balls 1958-6-27 23280 Orange 4.1 mi from (gate of) Silverado ( Santa Ana Mountains, Silverado Canyon); Santa Ana Mountains, Silverado Canyon 1036 Comment
  UCR230839  Mimulus clevelandii Dick Newell, Judy Booth 2011-6-19 181 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, above Santiago Canyon 1086 Comment
  RSA588708  Mimulus clevelandii Fred M. Roberts 1990-5-22 4642 Orange Santa Ana Mts. East Fork Upper Long Canyon, along Maine Divide Truck Trail Extension, 4.1km E Los Pinos Peak 954 Comment
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Dec 5 2011
  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
  CLARK-A1528-4272  Mimulus puniceus John C. Roos 1965-6-16 Orange Dana Point Comment
  SEINET11941950  Mirabilis californica J. F. Bright, Wyman, C. 1933-1 8104 Orange In Santa Ana Foothills Comment
  UCR193818  Mirabilis laevis A. C. Sanders, Fred M. Roberts 2008-7-16 35870 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  POM761  Mirabilis laevis var. crassifolia I. M. Johnston 1918-5-4 266 Orange hills back of Laguna Beach. 152 Comment
  UCR239628  Mirabilis laevis var. crassifolia Fred M. Roberts 2012-4-24 7501 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  RSA38698  Modiola caroliniana E. L. Paddock 1943-9-10 s.n. Orange 1.5 miles NE of Brea Comment
  CAS-BOT-BC435043  Mollugo verticillata L. R. Abrams 1901-6-1 1769 Orange Laguna Comment
  SEINET182350 Image available Monanthochloe littoralis L. M. Booth 1932-5-12 1046 Orange Newport Bay Comment
  UCD86070  Monanthochloe littoralis Peter H. Raven 1958-7-5 13562 Orange north of Surfside. Comment
  RSA795173  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31613 Orange near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak 998 Comment
  UCR158808  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31607 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 820 Comment
  UCR193799  Monardella hypoleuca subsp. intermedia A. C. Sanders, Fred M. Roberts 2008-7-3 35683 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA16470  Monardella lanceolata var. lanceolata Percy C. Everett 1935-6-19 s.n. Orange Santa Ana Mountains, Trabuco canyon, 1 3.4 miles below (W.) summit of truck traul. 976 Comment
  POM147619  Muhlenbergia asperifolia F. M. Reed 1927-9-19 5470 Orange Santa Ana Canon Highway at Peralta Heights 91 Comment
  CAS-BOT-BC275290  Muhlenbergia microsperma Carl B. Wolf 1932-3-8 2689 Orange 0.5 mile N of Corona Del Mar, borders of Newport Bay 7 Comment
  CAS-BOT-BC275291  Muhlenbergia microsperma J. C. Nevin 1904-1-1 s.n. Orange Newport Bluff Comment
  POM193518  Muhlenbergia microsperma J. B. Feudge 1929-4-7 2035 Orange Rancho Santa Ana, N.E. Orange County. 305 Comment
  RSA587869  Muhlenbergia microsperma Fred M. Roberts, Carol A. Roberts 1990-5-16 4631 Orange Santa Ana Mtns: Small canyon along SE side of Irvine Mesa, 3.5 km N Bolero Lookout 396 Comment
  RSA704079  Muhlenbergia microsperma D. E. Bramlet, Fred M. Roberts 2003-5-1 3431 a Orange Donna O'Neill Reserve. The site is located 61m west of Cristianitos Rd. and 396m north of the E-W Road. 121 Comment
  SEINET3828400  Muhlenbergia microsperma R. E. Riefner Jr. 2011-1 11 -99 Orange Newport beach, Orange County Parks & Recreation lands, along Newport Coast Drive, between Vista Ridge Rd. & Alteza Rd. 281 Comment
  UCR190991  Muhlenbergia microsperma A. C. Sanders, Fred M. Roberts 2008-4-22 35009 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  UCR215280  Muhlenbergia microsperma Fred M. Roberts 2008-3-27 6811 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Outlook 1, 0.5 km west of Marine Institute, Dana Point Harbor 45 Comment
  UCR2585  Muhlenbergia microsperma F. M. Reed 1922-4-30 4721 Orange Arch Beach 229 Comment
  RSA0043357  Nama stenocarpa Fred M. Roberts, Laura Cohen 2012-10-31 7714 Orange San Joaquin Hills. Upper Laguna Lake, north end. Laguna Coast Wilderness Park, c. 5.1 km east northeast of Signal Hill. 113 Comment
  UCR158039  Nama stenocarpa Adrian Wolf 1998-7-21 402 Orange South Coast, Emerald Canyon, Laguna Coast ranges, 3 km up canyon from Pacific Coast Hwy, 2.75 km SW of Laguna Canyon Rd. and El Toro intersection 122 Comment
  CAS-BOT-BC259968  Nassella lepida Carl B. Wolf 1932-3-8 2682 Orange 0.5 mile N of Corona Del Mar, Borders of Newport Bay 7 Comment
  RSA680735  Nassella lepida Scott D. White 2003-3-21 s.n. Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  UCD87925  Nassella lepida F. M. Reed 1928-7-10 6579 Orange sidewalk in Laguna Beach, El Toro. 1524 Comment
  RSA535968  Nassella pulchra Fred M. Roberts 1989-4-17 4267 Orange Santa Ana Mtns: Central Blind Canyon, 7.3km SW Sierra Peak, 2.4km N Irvine Lake,, UTM 37 40 700 m N, 4 32 900m E. 259 Comment
  RSA542547  Nassella pulchra Fred M. Roberts 1988-2-9 3782 Orange Lomas De Santiago: Loma Ridge, 1.5km N Bee Survey Mark., UTM 373 3700m N, 435 200m E 385 Comment
  UC822007  Nassella pulchra B. D. Stark 1933-5-2 4546 Orange Roundtop Rancho Santa Ana, Santa Ana Canyon 457 Comment
  UCD87644  Nassella pulchra R. M. L. 1942-4-15 7 Orange north slope. Moulton Ranch. Comment
  SEINET11682314  Nassella pulchra J. Bright, Wyman, C. 1933-1 8213 Orange LaGuna Beach Comment
  POM356  Nasturtium officinale Crocker 1916-4-9 s.n. Orange Santa Ana River region, Aquatec River bottom Comment
  RSA234542  Nemacaulis denudata var. denudata James Henrickson 1970-7-24 5017 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  RSA653148  Nemacaulis denudata var. denudata Judy Knouse 1974-5-5 s.n. Orange Newport Peninsula, 8th and 9th St. sand dunes 2 Comment
  RSA749469  Nemophila menziesii subsp. menziesii Fred M. Roberts 1999-4-22 5189 Orange Lomas de Santiago: tributary to Santiago Creek wash along spur road on ridge between Limestone Cyn. and Santiago Creek wash opposite Williams Cyn., 1.8 km SE Silverado Sch. and 2.3 km NNW Bolero Lookout. 396 Comment
  POM347132  Nemophila menziesii var. integrifolia Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. Comment
  CAS-BOT-BC478169  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
  UC2042004  Nephrolepis cordifolia R. E. Riefner Jr. 2010-5-14 10 -35 Orange City of Laguna Beach, N side of North Coast Highway near Jasmine St. Comment
  IRVC151  Nephrolepis cordifolia Barbara Mawdsley 1965-5-1 HS 540 Orange Corona del mar; Marigold Street. Southern Coastal Comment
  IRVC153  Nephrolepis exaltata L. Burns 1965-4-21 s.n. Orange Newport Beach; Lido Island Southern Coastal Comment
  RSA741478  Nerium oleander R. E. Riefner 2008-5-30 8 -124 Orange Near City of Orange, Santiago Creek, vicinity of Jackson Ranch Rd. , at Santiago Creek Rd., Irvine Ranch Reserve, Management Area 15. Comment
  CAS-BOT-BC231677  Nicotiana glauca Agnes M. Bowman 1899-4-1 s.n. Orange Santa Ana Rv. Comment
  IRVC28777  Nicotiana glauca Archie F. Iskaq 2006-2-4 3 Orange San Joaquin Marsh; NW Edge of Marsh. Southern Coastal 3 Comment
  UCD126659  Nicotiana glauca P. B. Kennedy 1925-1-12 11 Orange Irvine Ranch. Comment
  UCR193777  Nicotiana glauca A. C. Sanders, Fred M. Roberts 2008-7-3 35687 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  JEPS12369  Nicotiana quadrivalvis Alice King Apr 1908 Orange Santiago Creek; Santa Ana Mountains Comment
  POM202039  Nitrophila occidentalis L. M. Booth 1932-6-7 1157 Orange Newport Lagoon. Comment
  RSA127  Nolina cismontana J. T. Howell 1927-7-28 507 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
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Apr 8 2018
  RSA642702  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
  RSA746535  Nolina cismontana R. E. Riefner 2007-6-14 7 -256 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fork Fremont Canyon, Donaldson Ranch Area. 381 Comment
  SEINET1910244  Nolina cismontana R. E. Riefner Jr. 2007-1 7 -256 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W fork Fremont Canyon, Donaldson Ranch area. 381 Comment
  UCR192095  Nolina cismontana A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35290 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA698084  Nolina parryi R. H. McArthur 1934-5-19 s.n. Orange Live oak Canyon. Comment
  RSA450860  Notholaena californica subsp. californica Gordon Marsh, K. G. Marsh 1978-1-27 s.n. Orange Santa Ana Mountains: Trabuco; N side of Upper Trabuco Canyon Road, about 2 mi E of Live Oak Canyon Road. 402 Comment
  SD234443  Nothoscordum gracile A. C. Sanders 2008-7-3 35714 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn, at Agustine Staging Area (Black Star Canyon 7.5' Q) 259 Comment
  RSA725515  Nyctocereus serpentinus Fred M. Roberts, Robert L. Allen 2007-9-28 6615 Orange Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  CAS-BOT-BC171487  Oenothera californica Helen D. Geis 1902-3-1 s.n. Orange Santa Ana sand dunes Comment
  RSA733637  Oenothera dentata L. C. Hull 1934-4-8 s.n. Orange Laguna Hills. Comment
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Dec 21 2017
  JEPS44053  Oenothera elata subsp. hirsutissima L. M. Booth 1932-6-15 1190 Orange s Huntington Beach Comment
  RSA698247  Oenothera pallida var. californica Unspecified s.n. Orange Santa Ana Comment
  OBI5681  Oenothera suffrutescens Carl B. Wolf 1932-7-2 3809 Orange 1.5 mi E of Brea on Cedar St 107 Comment
  CDA6652  Oldenlandia corymbosa W. Humphrey 1973-7-19 Orange 7231 Irvine Boulevard, Santa Ana. 0 Comment
  UCD121989  Oldenlandia corymbosa G. D. Barbe 1973-8-9 1695 Orange Bordier's Nursery, 7231 Irvine Blvd., Santa Ana (Tustin). Comment
  RSA753081  Olea europaea A. C. Sanders, Fred M. Roberts 2008-9-18 36081 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  SDSU8537  Olea europaea Curtis B. Kendall 1994-5-18 18 V94A Orange North Intersection of Bell Canyon Road and the loop trail in the National Audubon Society Starr Ranch Sanctuary. 314 Comment
  UCR197687  Olea europaea A. C. Sanders, Fred M. Roberts 2008-9-18 36081 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  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
  RSA80683  Oligomeris linifolia F. W. Peirson 1925-4-11 5744 Orange 5 miles southeast of Laguna Beach. Comment
  CAS-BOT-BC427453  Oligomeris linifolia Carl B. Wolf 1932-6-28 3792 Orange Bryant Ranch, at the extreme SW. corner of the SW. 40 of the SE. 160 of sect. 27. T4S. R11W. Comment
  UCR235514  Oncosiphon piluliferum R. E. Riefner Jr. 2011-5-20 11- 57 Orange South Coast, Newport Beach, Coastal Peak Park, East Coastal Peak Road at Ridge Park Road 305 Comment
  RSA562722  Opuntia X occidentalis Steve Boyd, Timothy S. Ross 1992-5-19 7425 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon. 366 Comment
  IRVC26536  Opuntia cholla Mark A. Elvin 2004-5-22 3454 Orange UCI Arboretum Southern Coastal 15 Comment
  HSC3800  Opuntia littoralis J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  POM317735  Opuntia littoralis David Walkington 1963-5-23 175 Orange West side of N Euclid Ave. north of Sunny Hills West Home, Fullerton. 76 Comment
  RSA6668  Opuntia oricola B. D. Stark 1933-1-17 4518 Orange 5 miles north of Laguna Beach on road to Irvine. 152 Comment
  CLARK-A1528-4285  Orthocarpus purpurascens John C. Roos 1965-6-16 Orange Dana Point Comment
  CAS-BOT-BC355773  Osmadenia tenella Munz; Street; Williams 1919-5-3 2631 Orange Santa Ana River Canon [Canyon] Comment
  UCR138442  Oxalis californica R. E. Riefner Jr. 2000-4-27 20- 389 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running south from Baker Canyon Road to Silverado Road 335 Comment
  POM196704  Oxalis pes-caprae E. Johnson 1930-2-25 s.n. Orange About Orange Comment
  POM353419  Oxalis wrightii F. R. Fosberg 1931-6-21 S 5097 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA501314  Paeonia californica S. Zona, G. A. Allen, A. Liston, L. Rieseberg 1989-2-5 304 Orange San Juan Hot Springs along Ortega Hwy, alt 230m. 230 Comment
  RSA700032  Paeonia californica L. C. Hull 1934-3-11 s.n. Orange Ortega Highway 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
  RSA797015  Pallenis maritima R. E. Riefner Jr. 2010-1-2 10 -3 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 2 Comment
  RSA697732  Panicum capillare Anonymous 1928-1 6 Orange Santa Ana River flats. Comment
  RSA800228  Panicum dichotomiflorum Justin M. Wood 2010-9-29 2755 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  RSA731537  Panicum dichotomiflorum subsp. dichotomiflorum R. E. Riefner 2007-9-14 7 -395 Orange City of Anaheim, Santa Ana River bottom near 57-Freeway between Orangewood St. and Chapman Ave. 41 Comment
  RSA13135  Papaver californicum Percy C. Everett 1935-5-29 7094 Orange Santa Ana Mts, Head of Claymine Canyon. 762 Comment
  RSA594803  Papaver californicum Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4920 Orange Santa Ana Mountains: San Juan Canyon, south side of CA route 74, 1 kilometers NNW San Juan Survey Mark. 268 Comment
  RSA678504  Parapholis incurva Valerie L. Soza, Kenneth Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1119 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UC537118  Parapholis incurva Lawrence M. Booth 1932-5-12 1009 Orange Newport Bay 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
  CAS-BOT-BC413373  Parietaria hespera var. californica Helen D. Geis 1902-1-1 509 Orange Santa Ana Comment
  POM8722  Parietaria hespera var. hespera Philip A. Munz, R. D. Harwood 1920-4-17 3801 Orange Laguna Canyon. 61 Comment
  UC729871  Parietaria hespera var. hespera Carl B. Wolf 1932-7-2 Orange .12 mi below La Vida Springs; Carbon Canyon 213 Comment
  RSA0026252  Parthenocissus vitacea Fred M. Roberts 2013-6-12 7798 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
  CAS-BOT-BC259630  Paspalum dilatatum Ira L. Wiggins 1965-9-26 20258 Orange Along railway right of way on N outskirts of Yorba Linda, beside Imperial Highway near Casa Loma Avenue Comment
  CAS-BOT-BC259631  Paspalum dilatatum Ira L. Wiggins 1965-10-2 20270 Orange At Hillcrest Park, Fullerton Comment
  RSA702938  Paspalum dilatatum Scott D. White 2004-7-7 10604 Orange Laguna Niguel. 61 Comment
  POM202522  Paspalum distichum L. M. Booth 1932-7-1 1239 Orange Anaheim Marsh Comment
  UC455152  Paspalum distichum I. J. Condit 1908-7-21 Orange Los Alamitos Comment
  UCR192987  Paspalum distichum A. C. Sanders, Fred M. Roberts 2008-6-17 35499 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  RSA91899  Paspalum distichum F. W. Peirson 1924-8-29 5096 Orange Road from Artesia to Hungtington Beach, along ditch Comment
  RSA733050  Paspalum vaginatum R. E. Riefner 2003-10-17 03 -456 Orange City of San Juan Capistano, Trabuco Creek, S side of Del Obispo St. at Paseo Adelento St. 26 Comment
  RSA733055  Paspalum vaginatum R. E. Riefner 2007-10-26 07 -459 Orange City of Laguna Niguel, vicinity of La Paz Rd. at Kings Rd. 64 Comment
  RSA733140  Paspalum vaginatum R. E. Riefner 2007-10-17 7 -436 Orange City of Dana Point, Doheny State Beach, W side of San Juan Creek Lagoon. 6 Comment
  RSA733141  Paspalum vaginatum R. E. Riefner 2007-10-17 7 -437 Orange City of Dana Point, Doheny State Beach, E side of San Juan Creek Lagoon. 4 Comment
  UCD169410  Paspalum vaginatum R. E. Riefner Jr. 2012-10-21 12- 523 Orange City of Newport Beach, south of Poppy Street/Ocean Blvd, creek at base of stairs, Little Corona Beach. 7 Comment
  UCR204899  Paspalum vaginatum R. E. Riefner Jr. 2003-10-14 03- 456 Orange South Coast, city of San Juan Capistrano, Trabuco Creek, south side of Del Obispo Street at Paseo Adelento Street 26 Comment
  RSA737239  Paspalum virgatum R. E. Riefner 2008-7-29 08 -256 Orange City of Dana Point, Salt Creek Beach, Near Ritz Carlton Hotel 0 Comment
  UCR217452  Pectocarya linearis subsp. ferocula Mark A. Elvin 2003-1-26 2230 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA220953  Pedicularis densiflora E. W. Lathrop 1966-4-6 6142 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA401952A  Pedicularis densiflora Christopher Davidson 1977-5-18 5601 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  UCD103490  Pelargonium A. C. Sanders 2003-10-12 27314 Orange Southern Coastal Slope: Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  UCR159812  Pelargonium grossularioides Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal, UCI Arboretum 15 Comment
  RSA698462  Pellaea andromedifolia R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  RSA753426  Pellaea andromedifolia D. E. Bramlet 2008-4-1 4141 Orange Ridegeline in Upper Hicks Canyon, 136m S of the Haul Rd. 345 Comment
  RSA783268  Pellaea andromedifolia J. D. Olmsted 1959-4-23 466 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  SEINET3153874  Pellaea andromedifolia W. B. Crockatt 1908-6-1 sn Orange Capistrano Valley 76 Comment
  RSA124717  Pellaea andromedifolia var. andromedifolia E. K. Balls, Percy C. Everett 1957-11-25 22840 Orange Upper Trabuco Canyon, 2.2 mi. ne. from entrance to Holy Jim Canyon, 990 Comment
  CAS-BOT-BC71393  Pellaea mucronata Carl B. Wolf 1933-8-24 5396 Orange Santa Ana Mts., summit of Santiago Pk. 1731 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
  RSA660592  Pellaea mucronata var. mucronata R. E. Riefner, Adrian Wolf 2000-6-1 20 -452 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. USGS 7.5' Quad: Black Star Canyon. 518 Comment
  IRVC14100  Pellaea mucronata var. mucronata K. Marvosh 1966-5-1 Orange Harding Canyon, 1mi up canyon, 400ft up on slope; dry rocky slope in chaparral and coastal sage scrub. Santa Ana Mountains Comment
  UCR193469  Pennisetum clandestinum A. C. Sanders, T. B. Salvato 2008-5-13 35350 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  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
  POM50434  Penstemon spectabilis L. R. Abrams 1901-6-15 1842 Orange Santiago Peak trail. Comment
  RSA401835  Penstemon spectabilis Christopher Davidson 1977-5-18 5604 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  POM351577  Pentachaeta aurea Anstruther Davidson 1893-05 s.n. Orange Santiago Canyon Comment
  RSA0094735  Pentagramma triangularis E. K. Balls, Percy C. Everett 1957-11-25 22838 Orange on N facing banks in rocks; Upper Trabuco Canyon, 2.9 miles NE from entrance to Holy Jim Canyon. 1097 Comment
  IRVC20439  Pentagramma triangularis subsp. triangularis Fred M. Roberts, K. G. Marsh 1983-5-26 1093 Orange Dana Point Headlands: 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School Southern Coastal 82 Comment
  RSA687368  Pentagramma triangularis subsp. triangularis Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  RSA687405  Pentagramma triangularis subsp. triangularis Norman C. Cooper 1949-5-1 3951 Orange San Juan Canyon 610 Comment
  RSA749470  Pentagramma triangularis subsp. triangularis Fred M. Roberts 1999-4-22 5190 Orange Lomas de Santiago: tributary to Santiago Creek wash along spur road on ridge between Limestone Cyn. and Santiago Creek wash opposite Williams Cyn., 1.8 km SE Silverado Sch. and 2.3 km NNW Bolero Lookout. 396 Comment
  UCSB41755  Peritoma arborea Gittins, Barbara 1963-7-20 Orange Newport Beach; east side of Palisades Road below narrows and boat ramps Comment
  SEINET10974097  Persea George A. Zentmyer 1990-11-1 Zentmyer 1 -B Orange University of California South Coast Field Station, near Irvine (Tustin7.5'Q) 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
  RSA710822  Persea cinerascens R. W. Scora 1997-5-13 5142 Orange Zentmyer Avocado Collection, Field 3, South Coast Field Station, Irvine. 21 Comment
  SEINET1907075  Persea steyermarkii R. W. Scora 1997-1 5146 Orange Zentmyer Avocado Collection, Field 3, South Coast Field Station, Irvine . 21 Comment
  UCR186686  Persicaria lapathifolia T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1907 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  IRVC19405  Petroselinum crispum R. L. Allen 1983-2-7 A616 Orange Whiteoak at Starshine St.; common weed in bluegrass lawn at private home. Huntington Beach Comment
  RSA0014990  Phacelia brachyloba Fred M. Roberts 2008-5-20 6990 Orange Lomas de Santiago: Santiago Creek wash north of Hanging Man s Tree Road near confluence of Pancho Cyn., 1.6 km NW Bolero Lookout. Irvine Ranch Conservancy. 349 Comment
  RSA16333  Phacelia brachyloba Percy C. Everett 1935-6-18 720 Orange Santa Ana Mts, Main Divide Motorway 1.4 miles N of Los Pinos Potrero 1098 Comment
  POM147493  Phacelia cicutaria var. hispida F. M. Reed 1928-5-11 5880 Orange West end of Carbon Canyon. Comment
  RSA647938  Phacelia cicutaria var. hispida Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 26 Orange 1/2 mile south of Chino Hills State Park. 168 Comment
  UCSB47622  Phacelia cicutaria var. hispida Roberts, Jr., Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Canyon, Rte. 74, 0.2 km. S Lower San Juan Picnic Ground 393 Comment
  RSA738989  Phacelia ciliata Norland 1929-3-16 s.n. Orange Huntington Beach Comment
  UCR239654  Phacelia ciliata Fred M. Roberts 2012-4-27 7543 Orange Lomas de Santiago, Loma Ridge, west of SR 241, tributary to 'Las Flores' Canyon, 1.5 km west-southwest of Irvine Lake Park Campground and 1.1 km east of Orange County Emergency Operations Center, Hill 1311 311 Comment
  RSA699654  Phacelia hispida Keith E. Hoffmaster 1934-4-22 s.n. Orange Santa Ana Mountains Comment
  RSA2095  Phacelia imbricata subsp. bernardina E. R. Johnson 1931-6-1 2233 Orange Roundtop, Rancho Santa Ana. 457 Comment
  RSA1319  Phacelia minor J. T. Howell 1928-7-10 1089 Orange Trabucco Canyon, Santa Ana Mts 381 Comment
  POM49699  Phacelia parryi Helen D. Geis 1902-1 511 Orange Santiago Canyon, Orange County. Comment
  RSA20369  Phacelia parryi Percy C. Everett 1938-4-11 9400 Orange Rancho Santa Ana, Santa Ana canyon, N of W end of Walnut orchard. 122 Comment
  UC672389  Phacelia parryi Herbert L. Mason 1926-4-25 2911 Orange 5 mi s Laguna 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
  RSA428288A  Phacelia ramosissima H. C. Ackley 1926-05 5984 Orange Sunset Beach. Comment
  SEINET998493  Phacelia ramosissima Mark A. Elvin 2004-1 3525 Orange Southern Coastal: UCI Arboretum (Tustin 7.5') Comment
  CAS-BOT-BC144975  Phacelia ramosissima var. austrolitoralis John Thomas Howell 1927-6-3 2417 Orange On sandy ridge, southern Puente Hills, Santa Ana Canyon 152 Comment
  RSA582643  Phacelia ramosissima var. austrolitoralis Louis C. Wheeler 1932-6-22 843 Orange Newport Bay. 1 Comment
  RSA562734  Phalaris aquatica Steve Boyd, Timothy S. Ross 1992-5-19 7450 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail crossing. 320 Comment
  JEPS111464  Phalaris minor J. B. Anderson 1966-4-22 603 Orange San Joaquin Hills: Along dirt road in Los Trancos Canyon Comment
  RSA0127610  Phalaris minor Fred M. Roberts 2016-4-26 8041 Orange Lomas de Santiago: South of Santiago Canyon Road in tributary to Lower Presida Canyon just southwest of Irvine Lake, 2.2 km S Irvine Lake dam spillway and 0.6 km SW Irvine Lake Park. 265 Comment
  UCD89033  Phalaris minor A. A. Beetle 1942-4-19 3091 Orange 20 miles S of Santa Ana, road to Laguna. Comment
  UCSB68450  Phalaris paradoxa Anderson, J. 1966-4-26 Orange University of California, Irvine; south of Science Lecture Hall Comment
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Nov 1 2018
  UCR4127  Philadelphus lewisii F. Zaebst 1959-4-19 4127 Orange Peninsular Range; Santa Ana Mtns., Coastal side of mountains on Calif. Hwy 74, 3.2 mi west of San Juan Guard Station, north side of road Comment
  UCR133164  Phlox gracilis Adrian Wolf 2000-4-7 452 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Fremont Canyon, 3 km NNE of canyon mouth 408 Comment
  UCR66995  Phoenix canariensis A. C. Sanders 1990-10-6 10197 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  CAS-BOT-BC222604  Pholistoma auritum var. auritum Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canon [Canyon] Comment
  UCSB52908  Phoradendron leucarpum subsp. tomentosum Roberts, Fred 1984-8-14 Orange Santa Ana Mtns.: Old San Juan Trail, 2.1km SSE Los Pinos Peak* 0.8km SW Blue Jay Camp ground 985 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
  RSA384022  Phyllospadix torreyi George R. Johnstone 1927-8-14 s.n. Orange Laguna Beach. Comment
  POM1012  Phyllospadix torreyi D. L. Crawford 1916-7-28 s.n. Orange Laguna Beach Region Comment
  RSA731932  Physalis philadelphica Fred M. Roberts, Sandra Leatherman 2007-11-27 6678 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. c.a. 0.3km S Fairmont Blvd. 118 Comment
  UCR46555  Picris echioides B. G. Pitzer, D. C. Hawks 1986-10-21 0353 A Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, c. 10 mi east of Santa Ana, in hills N and east of South Coast Gun Club on Jeffrey Road in Hicks Canyon 183 Comment
  POM17834  Picris echioides P. A. Munz 1923-9-7 7772 Orange Tustin 30 Comment
  CAS-BOT-BC402195  Pinus attenuata R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49694 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  CAS-BOT-BC73332  Pinus attenuata Carl B. Wolf 1934-12-21 6259 Orange Slope of main ridge, Saddle h.w. of Sugarloaf Pk. (Pleasants Pk.), 1 3/10 mi. so. of summit of Skyline Drive, 1158 Comment
  POM212313  Pinus attenuata C. B. Wolf 1934-12-21 6260 Orange N.E. of Sugarloaf Peak (Pleasants Pk.), along Main St. Trail, Santa Ana Mts. Altitude 3800 ft.c. 1159 Comment
  SD247530  Pinus attenuata R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49694 Orange Northern Santa Aana Mountains: Sierra Peak. Comment
  RSA662562  Pinus coulteri P. Shirokawa 1998-5-7 26 Orange Cleveland National Forest- Trabuco Ranger District, 4.55 miles from Ortega Highway (State Highway 74) on North Main Divide Road 1067 Comment
  SD236117  Pinus halepensis A. C. Sanders, Fred M. Roberts 2008-9-18 36082 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  UCR200955  Pinus halepensis A. C. Sanders, Fred M. Roberts 2008-9-18 36082 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  MACF017433  Pinus taeda Trudy R. Ericson 1974-6-13 167 Orange Little Cypress Road about 1 mi. south of Little Cypress Bayou Comment
  RSA725506  Piptatherum miliaceum Fred M. Roberts 2007-9-11 6569 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
  UCR250133  Piptatherum miliaceum Dick Newell, Judy Booth 2013-12-25 346 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest, at end of paved roadway 899 Comment
  RSA226741  Piptatherum miliaceum I. L. Wiggins 1965-9-26 20256 Orange Along N margin of La Vida Property, above the hot srings Comment
  SEINET5642640  Pistacia atlantica Shelby J. Wood 2013-3-9 10 Orange Huntington Beach, Central Park.; 0 Comment
  CDA2639  Pistia stratiotes M. Nolan 1981-5-19 Orange Central Park Lake, Huntington Beach. 0 Comment
  UCR162342  Pittosporum tobira Robert DeRuff 1984-1 242 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, North Star Beach 30 Comment
  UCR234436  Pittosporum undulatum Dick Newell, Judy Booth 2012-4-29 247 Orange South Coastal Plain, Aliso Creek, 0.25 mi. north of Pacific Coast Highway 9 Comment
  SBBG15548  Plagiobothrys D. E. Breedlove 1962-3-9 1797 Orange St Hwy 74, 4.4 mi E of San Juan Capistrano 112 Comment
  CAS-BOT-BC354027  Plagiobothrys acanthocarpus R. E. Riefner, Jr. 2013-3-17 13 -44 Orange City of Irvine, Jeffrey Trail, vicinity of Shady Canyon Dr. at Fossil Rd. 47 Comment
  RSA627741  Plagiobothrys acanthocarpus Scott D. White 1998-1-26 6064 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, ca. halfway between Berkeley Av. and new freeway (Bonita Cyn.) -37 Comment
  SD212526  Plagiobothrys acanthocarpus R. E. Riefner 2006-4-12 06 116 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Road 46 Comment
  UCSB48072  Plagiobothrys acanthocarpus Fritzke, Sue; Roberts, Jr., Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N of Dana Hills High School; 1.9 km. W of Marco Forster Junior High School 100 Comment
  IRVC9331  Plagiobothrys collinus var. californicus C. Leavell 1966-3-16 59 Orange El Toro Rd. near Post Office; in open field. El Toro Comment
  UCSB14546  Plagiobothrys collinus var. californicus Breedlove, Dennis 1962-3-9 Orange 4.4 miles east of San Juan Capistrano on State 74 112 Comment
  RSA695818  Plagiobothrys collinus var. californicus R. H. McArthur 1934-3-10 s.n. Orange Tomato Springs Irvine Ranch Comment
  UCR177432  Plagiobothrys nothofulvus Scott D. White, Amanda Duchardt 2003-3-27 8858 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  JEPS6394  Plantago erecta Lawrence M. Booth 1932-5-18 1055 Orange Newport Bay Comment
  RSA1460  Plantago erecta E. R. Johnson 1929-4-11 1260 Orange Sierra Peak Trail. Comment
  RSA681952  Plantago erecta Fred M. Roberts, D. E. Bramlet 2003-3-7 5564 Orange Donna O'Neill Land Conservancy; West slopes of Christianitos Canyon, Middle Ridge Trail, 0.1km NW Gato Gate. 123 Comment
  UC536902  Plantago lanceolata Lawrence M. Booth 1932-7-18 1266 Orange Costa Mesa Newport Bay Comment
  RSA791464  Plantago major Keith E. Hoffmaster 1927-5-22 955 Orange Near Santa Ana. CP3. Comment
  RSA763  Plantago ovata var. fastigiata J. T. Howell 1927-6-9 70 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA424275  Plantago subnuda Anstruther Davidson 1910-4-1 s.n. Orange Corona Del Mar Comment
  CAS-BOT-BC92244  Platystemon californicus D. E. Breedlove 1962-3-9 1799 Orange 4.4 miles east of San Juan Capistrano on State 74. 112 Comment
  UC635457  Platystemon californicus Herbert L. Mason 1926-4-25 2936 Orange 5 mi s Laguna; s of Laguna Comment
  OBI74939  Plecostachys serpyllifolia Unknown 2005-9-9 05 -654 Orange City of Lake Forest Aliso Crk, S side of Portola Pkwya and W of El Toro Rd 225 Comment
  SEINET6413740  Plecostachys serpyllifolia R. Spellenberg 2014-5-6 14775 Orange Laguna Beach, Aliso Creek Beach Park; ca 500 m S of lat/long. 1 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
  UCR146539  Pluchea odorata Scott D. White 2004-7-7 10605 Orange South Coast, Laguna Niguel, along Pacific Island Drive 122 Comment
  RSA302005  Pluchea odorata J. R. Shevock 1972-9-27 2282 Orange Newport Beach Bay. 3 Comment
  UCD134966  Pluchea odorata var. odorata J. C. Roos 1949-10-1 4684 Orange Doheney Beach. 3 Comment
  UC75889  Pluchea odorata var. odorata E. A. Jumbro 1902-1 381 Orange 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
  UC1070061  Pluchea sericea A. Lewis Mar 1934 333 Orange Santa Ana Canyon Corona Quad. 121 Comment
  CAS-BOT-BC255534  Poa annua Ira L. Wiggins 1966-3-5 20506 Orange Along Highway S-18, about 4.5 miles E of Laguna Beach Comment
  IRVC1625  Poa annua Diane Ibbetson 1965-4-10 s.n. Orange Trabuco Canyon. Southern Coastal Comment
  SEINET10791987  Poa scabrella Robert F. Thorne, Earl W. Lathrop 1977-5-18 Thorne 49746 Orange Santa Ana Mountains, summit of Santiago Peak. 1733 Comment
  RSA542549  Poa secunda Fred M. Roberts 1988-2-9 3777 Orange Lomas de Santiago: Loma Ridge, 1.3 km N Bee Survey Mark., UTM 3733600m N, 434800m E 381 Comment
  RSA644975  Poa secunda subsp. secunda R. E. Riefner 2000-4-15 20 -379 Orange NCCP North Ranch Policy Plan Area. Main Divide Raod; S. of Gypsum Canyon and S of Windy Ridge. 518 Comment
  RSA644981  Pogogyne douglasii subsp. parviflora R. E. Riefner Jr. 2000-4-5 20 -211 Orange North Ranch Policy Plan Area, Main Divide Road, top of Gypsum Canyon, east of Windy Ridge. 518 Comment
  UCR231203  Polygala cornuta subsp. fishiae A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39941 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  RSA5351  Polygala cornuta var. fishiae Carl B. Wolf 1932-12-19 4433 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA561496  Polygala cornuta var. fishiae Steve Boyd, Kyle Boyd 1992-7-9 7654 Orange Northern Santa Ana Mountains, along the main crest of the range, north of Pleasants Peak and south of Oak Flat (aka Oat Flat), 1.5 miles south of junction of Main Divide and Skyline Roads. Comment
  RSA616055  Polygala cornuta var. fishiae Scott D. White, Lonnie Curtis, Henry Miedema 1997-10-16 s.n. Orange East end of Silverado Canyon community, ca. 5 road miles E of jtn. of Silverado Canyon Rd. w/ Santiago Canyon Rd. Small Private Parcel within the Cleavland National Forest. 595 Comment
  UCR79245  Polygala cornuta var. fishiae Steve Boyd, T. S. Ross 1992-5-20 7478 Orange Southern Santa Ana Mtns, San Mateo Canyon Wilderness Area: Western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail, upstream 0.25 mi to spur trail leading to old mining habitations in side canyon. 412 Comment
  UC536925  Polygonum argyrocoleon Lawrence M. Booth 1932-7-25 1317 Orange 2 mi from ocean; Santa Ana River Comment
  RSA21059  Polygonum fusiforme Ramon Valverde 1938-8-4 9445 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  UC729963  Polygonum hydropiperoides Carl B. Wolf 1932-6-13 3719 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  RSA718963  Polygonum lapathifolium Fred M. Roberts, Robert L. Allen 2006-10-8 6417 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
  RSA542467  Polygonum persicaria Fred M. Roberts, G. A. Marsh 1987-8-31 3593 Orange Santa Ana River: adjacent to Santa Ana at Mc Fadden crossing. 19 Comment
  IRVC22502  Polypodium californicum Fred M. Roberts 1985-5-1 1692 Orange Aliso Canyon, 2.1km NNE Aliso Peak, Aliso Viejo 67 Comment
  SD262146  Polypodium californicum R. E. Riefner Jr. 2017-3-31 17 137 Orange City of San Clemente, San Clemente State Beach, NW bluff area immediately S of Ave. Calafia. 24 Comment
  UCR280606  Polypodium californicum R. E. Riefner Jr. 2017-3-31 17- 137 Orange South Coast, city of San Clemente, San Clemente State Beach, northwest bluff area immediately south of Ave. Calafia 24 Comment
  IRVC14155  Polypodium californicum K. Marvosh 1966-4-26 s.n. Orange Silverado Canyon: 1mi S of end of paved roads, along stream bank. Southern Coastal Comment
  IRVC19368  Polypodium californicum R. L. Allen 1977-2-13 s.n. Orange [San Juan Canyon], Ortega Hwy, roadside 111; small side canyon, NW of main canyon. Santa Ana Mountains Comment
  IRVC21313  Polypodium californicum Fred M. Roberts 1983-12-13 1155 Orange Laguna Beach: west flank of Temple Hill, Park Canyon, Park Ave., 1.3km NE of Thurston School; 1.7km SE Bench Mark 104. Southern Coastal 195 Comment
  IRVC21428  Polypodium californicum A. S. Boughey 1969-3-18 s.n. Orange Ortega Highway; 2mi E of San Juan Guard Station. Southern Coastal Comment
  RSA698542  Polypodium californicum L. Griset 1929-2-10 s.n. Orange Top of Modena Grade. Comment
  IRVC23141  Polypogon interruptus Fred M. Roberts 1985-7-10 2006 Orange Capistrano Beach: San Juan Creek, 0.5km from the ocean, 0.2km N of Pacific Coast Highway. southern coastal 2 Comment
  RSA483352  Polypogon monspeliensis E. Crow 1929-4-7 294 Orange SE of Orange Co. Park; Santa Ana River. Comment
  UC729866  Polypogon monspeliensis Carl B. Wolf 1932-7-2 3819 Orange 1/8 mi below La Vida Springs; Carbon Canyon, below La Vida Springs 213 Comment
  UCR16076  Polypogon monspeliensis N. J. Moriarty 1973-5-20 730520- 6 Orange Huntington Beach, 0.4 miles south of Newland Street on the east side of Pacific Coast Hwy Comment
  UCR220032  Polypogon monspeliensis Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  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
  UCSB48109  Polypogon monspeliensis Roberts, Fred 1981-4-12 Orange Santa Ana Mtns.: San Juan Canyon, Hwy. 74, 1.3 km. by road E San Juan Guard Sta., 0.9 km. SE Juan Rancho Survey Marker 295 Comment
  RSA0045355  Polypogon monspeliensis Keith E. Hoffmaster 1935-3-28 119 Orange West of Costa Mesa. Comment
  RSA697034  Polypogon monspeliensis Rankin s.n. Orange Costa Mesa Comment
  CAS-BOT-BC237508  Polypogon viridis Ira L. Wiggins 1965-11-6 20337 Orange Near railway right of way, W side of Atwood Comment
  RSA679095  Polystichum imbricans subsp. curtum Fred M. Roberts 2003-6-25 5950 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  RSA17460  Populus fremontii Carl B. Wolf 1936-9-23 8724 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  SD212718  Populus trichocarpa A. C. Sanders, Fred M. Roberts and Michelle Balk 2006-7-20 33023 Orange Santa Ana Mountains: San Juan Canyon, from Lower San Juan Picnis Area to circa 1 mile downstream, parallel to Highway 74 and near Riverside County line 366 Comment
  CAS-BOT-BC453919  Potamogeton pectinatus Street; Williams 1919-5-4 2690 Orange Laguna Beach Region. Laguna Lakes Comment
  RSA708440  Prosopis glandulosa var. torreyana Mark Elvin 2004-5-2 3419 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
  RSA699853  Prunus ilicifolia J. Vlahos 1934-4-22 s.n. Orange Harding Canyon Comment
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Jun 10 2012
  CAS-BOT-BC356380  Pseudognaphalium beneolens Frank W. Peirson 1923-9-7 4042 Orange Santiago Peak, Holy Jim Canon [Canyon] trail Comment
  SEINET11849335  Pseudognaphalium biolettii J. F. Bright, Wyman, C. 1933-1 8175 Orange near Dee Toro Comment
  CAS-BOT-BC356662  Pseudognaphalium californicum A. M. White 1974-6-2 1417 Orange Ca. 20 mi. E. of Santa Ana, CA N. of Silverado Canyon Comment
  SEINET9307949  Pseudognaphalium californicum Unknown 1996-5-11 19 Orange Newport Back Bay, 25 yrds in along bike path. Dry coastal mudflat dominated by Typha. Comment
  CHSC108408  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-2-13 07 -55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. 31 Comment
  UCR232932  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2011-10-19 11- 147 Orange South Coast, city of San Juan Capistrano, San Juan Creek, c. 0.2 mi west of intersection of Paseo Tirador and Calle Arroyo Street 31 Comment
  UCR281842  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2017-8-14 17- 408 Orange South Coast, city of San Juan Capistrano, San Juan Creek. Northeast from San Juan Creek Road and Camino Chico, opposite Blenheim Farms & Equestrian Center, south of Ortega Hwy 47 Comment
  UCR281887  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2017-8-14 17- 404 Orange South Coast, city of San Juan Capistrano, San Juan Creek. Immediately east of Hwy I-5, north of San Juan Creek Road along San Juan Creek Trail 25 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
  CAS-BOT-BC361708  Psilocarphus brevissimus var. brevissimus D. E. Bramlet 2004-3-26 3543 Orange South Coast: Fairview Park in Costa Mesa, 183 m west of Canyon School and 366 m NW of intersection of Wilson & Canyon Dr. 24 Comment
  RSA562803  Psilocarphus tenellus Steve Boyd 1992-5-19 7426 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
  UC2048895  Psilotum nudum R. E. Riefner Jr. 2017-1-15 17 -36 Orange City of Newport Beach, Polaris Drive, S of Evening Star Drive, Westcliff Park, N side of Newport Bay. Comment
  UCR158852  Psoralea macrostachya A. C. Sanders, Mark A. Elvin 2005-9-2 31605 Orange Peninsular Range; Santa Ana Mtns., mouth of Lion Canyon near Lower San Juan Picnic Area, San Juan Creek Canyon 427 Comment
  IRVC3171  Pteridium aquilinum var. pubescens T. Baskin 1965-4-29 Orange Doheney St. Pk. Dana Point or Capistrano Beach Comment
  RSA392941  Pterostegia drymarioides Albert J. Perkins 1913-4-27 s.n. Orange Trabuco Canon. Comment
  RSA749999  Pterostegia drymarioides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35324 Orange Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  RSA542463  Pterostegia drymarioides Fred M. Roberts 1987-3-27 3279 Orange Canada De Los Alisos: above Canada Rd., 4.5 km NNE El Toro Fire Station. 226 Comment
  CAS-BOT-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
  OBI59561  Pulicaria paludosa T. C. Fuller 1963-10-9 11362 Orange Santa Ana cyn, 0.1 mi S of riverside fwy to Anaheim, ca 2 mi W of the Riverside Co. line Comment
  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
  UCR138415  Pulicaria paludosa Scott D. White, P. Bowler 1997-11-20 6021 Orange University of Calif., Irvine campus: east of main campus 61 Comment
  UCR174206  Pulicaria paludosa A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33059 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCSB71041  Pulicaria paludosa Ferren, Wayne 1991-11-29 Orange San Joaquin Marsh. North of Sand Diego Creek & east of MacArthur Blvd. Comment
  RSA12361  Quercus X grandidentata E. R. Johnson 1934-1-6 5561 Orange Santa Ana Mts., on slopes of Sierra Peak at about the head of Claymine Canyon. 762 Comment
  IRVC1324  Quercus agrifolia Debbie Frees 1965-3-13 s.n. Orange Silverado Canyon. Santa Ana Moutnains Comment
  IRVC20824  Quercus agrifolia var. agrifolia Fred M. Roberts 1982-7-25 784 Orange South Laguna; Niguel Hill, canyon on S flank; 0.9km ESE Aliso Peak; 1.1km NNW Bench Mark 133 Southern Coastal 195 Comment
  RSA702202  Quercus agrifolia var. agrifolia Fred M. Roberts, David E. Bramlet 2003-6-20 5923 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  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
  IRVC24544  Quercus berberidifolia Fred M. Roberts, R. L. Allen 1985-8-19 2129 Orange Mission Viejo: lateral to Engilish Canyon along Vista de Lago Drive; 3.4km ENE El Toro Fire Station. Southern Coastal 218 Comment
  RSA0013859  Quercus berberidifolia Fred M. Roberts 2012-5-10 7561 Orange San Joaquin Hills: Buck Gully, S Fork, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive. 183 Comment
  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
  UCR119802  Quercus berberidifolia R. E. Riefner Jr. 2000-6-22 20- 572 Orange Santa Ana Mountains, North Ranch Policy Plan Area, NE property, along National Forest boundary, at powerline 756 Comment
  UCR231345  Quercus berberidifolia A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39935 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1152 Comment
  SEINET13953238 Image available Quercus chrysolepis C. B. Wolf, E. R. Johnson 1933-1 Orange Santa Ana Mts., Main Divide Motorway, W. Side of Modjeska Peak 1372 Comment
  UCD63655  Quercus dumosa Daniel Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel. Dana Point Highlands. Pacific Island Drive. 70 Comment
  RSA595702  Quercus engelmannii J. E. Harrison 1996-10-17 500 Orange Upper Coyote Canyon, San Joaquin Hills, just n of Signal Peak adjacent to S. side of San Joaquin Hills Transportation Corridor (SR-73). 250 Comment
  RSA684303  Quercus engelmannii Fred M. Roberts, David E. Bramlet 2003-3-13 5597 Orange Donna O'Neill Land Conservancy: Shady Cyn. tributary to Cristianitos Canyon, 1,200m NW Sycamore Gate and 914m W Cristianitos Rd. 177 Comment
  CAS-BOT-BC487559  Quercus ilex R. E. Riefner, Jr. 2014-11-21 14 -393 Orange City of Lake Forest, English Canyon, Aliso Creek, S of Cherry Ave., end of 2nd St., Aliso Creek Bikeway 135 Comment
  IRVC19903  Quercus lobata Gordon A. Marsh, Karlin G. Marsh 1983-7-15 s.n. Orange San Joaquin Hills, Upper Shady Canyon. Southern Coastal Comment
  UCD46911  Quercus lobata James Trumbley 1980-1 2 Orange Crystal Cove State Park, ca. 1 mile inland, in Moro Canyon, a coastal canyon between Laguna Beach and Corona del Mar, Orange County, California. 30 Comment
  UC1135890  Quercus wislizeni A. Lewis Mar 1934 363 Orange Head of Silverado Canyon Cleveland National Forest, Corona Quad. 1112 Comment
  UC5679  Quercus wislizeni W. H. Brewer Jan 1861 137 Orange Santa Ana Mountains 914 Comment
  RSA644971  Quercus wislizeni var. frutescens R. E. Riefner Jr. 2000-4-13 2 -361 Orange NCCP North Ranch Policy Plan Area. Upper drainage of Fremont Canyon near National Forest boundary, S. of Claymore Mine. USGS 7.5' Quad: Black Star Canyon. 610 Comment
  RSA542413  Ranunculus californicus Fred M. Roberts 1989-3-17 4208 Orange Aliso Wood Canyon Regional Park, Aliso Canyon, 3.3km SSE Moulton Peak. 61 Comment
  RSA678729  Ranunculus californicus var. californicus Fred M. Roberts, Laura Cohen 2000-3-24 5268 Orange Rancho Mission Veijo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 Comment
  IRVC1141  Raphanus sativus C. Duncan 1965-4-13 Orange Newport Beach Comment
  UCR186423  Rauvolfia samarensis Robert DeRuff 1996-4-28 492 Orange Southern Coast, Newport Beach, Newport Back Bay, along Backbay Dr., 0.6 mi. north of Big Canyon 2 Comment
  RSA734887  Rhamnus californica subsp. californica A. C. Sanders 2008-5-28 35441 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  UC1121827  Rhamnus crocea A. Lewis Apr 1934 400 Orange near Arch Beach; Corona Quad. 182 Comment
  LA207818  Rhamnus ilicifolia P. C. Everett; 1935-6-17 7138 Orange Santa Ana Mountains, Coldwater Canyon, 0.5 mi. above Glen Ivy Resort 457 Comment
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Jan 23 2015
  RSA734856  Rhamnus ilicifolia A. C. Sanders, Mitch Provance 2008-5-20 35403 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  SBBG27250  Rhamnus ilicifolia C. B. Wolf, E. R. Johnson 1933-11-3 Orange Silverado Cyn at base of Silverado Motorway 731 Comment
  POM9767  Rhamnus ilicifolia P. A. Munz 1921-2-26 4681 Orange Brea Canyon. 305 Comment
  SD247722  Rhamnus ilicifolia R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 497703 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  SD255269  Rhamnus ilicifolia Robert F. Thorne, E. W. Lathrop 1977-5-18 49724 Orange Santa Ana Mountains: Bear Spring (east slope of Santiago Peak) Comment
  CAS-BOT-BC167878  Rhus integrifolia John Thomas Howell 1927-7-29 2870 Orange North side of Santa Ana [Canon] Canyon 243 Comment
  SEINET10692867  Rhus integrifolia Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 8 Orange Cleveland National Forest, 3 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. 950 Comment
  UCR190967  Rhus integrifolia A. C. Sanders, Fred M. Roberts 2008-4-22 35055 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  UCR193787  Rhus integrifolia A. C. Sanders, Fred M. Roberts 2008-7-3 35693 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  UCR230234  Rhus integrifolia Dick Newell, Don Millar 2011-3-22 092 Orange Peninsular Range; Santa Ana Mtns., entrance gate to Weir Canyon, 1/3 mile NW of Outdoor Education Center, 2.4 miles NW (309 deg. ) of Irvine Lake dam 173 Comment
  CLARK-A1528-117  Rhus laurina Cesareo Perez 1971-5-4 1 Orange Villa Park Comment
  UCR192973  Rhus laurina A. C. Sanders, Fred M. Roberts 2008-6-17 35462 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
  CAS-BOT-BC167933  Rhus ovata Carl B. Wolf 1941-9-21 6138 Orange Silverado Canyon, Santa Ana Mts. 731 Comment
  RSA16710  Rhus ovata C. B. Wolf 1934-9-21 6138 Orange Silverado Canyon, at base of Silverado motorway, W slope Santa Ana Mountains. 732 Comment
  RSA171932  Rhus ovata R. F. Thorne 1963-7-26 32857 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Cleveland National Forest. 732 Comment
  RSA695989  Rhus ovata Keith E. Hoffmaster 1934-4-8 s.n. Orange Gypsum can (n. Corona), Santa Ana Mts Comment
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Dec 11 2011
  SD253897  Rhus ovata Jim Riley 2013-12-10 132 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  RSA696475  Rhus trilobata J. Vlahos 1974-04 s.n. Orange Holy Jim canyon Comment
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Mar 6 2011
  RSA16351  Rhus trilobata var. quinata Percy C. Everett 1935-6-18 7181 Orange Santa Ana Mountains. Main divide motorway to Santiago Peak, 1 mile from Ortega Highway. 732 Comment
  CAS-BOT-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
  UC484234  Ribes californicum var. hesperium C. B. Wolf 1931-1-30 1824 Orange Claymine Canyon Santa Ana Mts. 457 Comment
  SD247656  Ribes californicum var. hesperium R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49707 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA698891  Ribes hesperium Tozier, Estes 1950-1-30 s.n. Orange Silverado. Comment
  HSC25244  Ribes indecorum Richard Spjut 1972-2-22 2224 Orange Coastal strand, near S Laguna Beach along Hwy. 1 0 Comment
  OBI5869  Ribes indecorum Carl B. Wolf 1931-3-6 1833 Orange 1.5 mi below Trabuco Oaks along Trabuco Cyn rd, W slope of Santa Ana Mts 305 Comment
  SBBG72052  Ribes malvaceum M. N. Ackley -May-1925 996 Orange Silverado Cyn 298 Comment
  RSA787498  Ribes malvaceum var. viridifolium Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  CHSC116481  Ribes malvaceum var. viridifolium R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  POM293817  Ribes speciosum Lyman Benson 1947-4-27 12336 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  RSA13078  Ribes speciosum Carl B. Wolf 1935-8-1 7562 Orange Claymine Canyon, Santa Ana Mts. Comment
  RSA788179  Ribes speciosum Doris Bowers 1966-4-3 338 Orange Black Star Canyon 274 Comment
  CDA4862  Ricinus communis D. G. Kelch 2006-12-9 6 .56 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA648947  Ricinus communis Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 24 Orange 1/2 mile south of Chino Hills State Park. 167 Comment
  RSA0014610  Romneya coulteri Justin M. Wood 2010-5-12 1685 Orange Santa Ana Canyon: Santa Ana River floodplain, 0.25 miles north of Coal Canyon wildlife corridor, west of Green River Golf Course of bluff south of the river. 122 Comment
  RSA446201  Romneya coulteri N. C. Cooper 1949-5-1 3934 Orange San Juan Canyon. 457 Comment
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Aug 11 2011
  RSA797663  Romneya coulteri Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49767 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UC1018189  Romneya coulteri J. Warren 1952-5-23 Orange Santa Ana Canon 457 Comment
  UC1090422  Romneya coulteri Milo S. Baker 1958-5-15 13266 Orange on road to City Creek Comment
  RSA799648  Rorippa palustris Justin M. Wood 2010-9-29 2741 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  UCR16768  Rosa californica Dave Cerf 1971-5-2 s.n. Orange Orange Park Acres. Windes Dr. 0.5 mile SW of end of road 244 Comment
  LA208250  Rubus ursinus Martha Hilend; May 1921 42 Orange Orange County Park Comment
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Feb 5 2015
  POM306304  Rumex conglomeratus Henry J. Ramsey, Henry J. Ramsey 1938-6-5 1392 Orange Laguna Beach, Irvine Comment
  SD227881  Rumex conglomeratus Scott D. White, Brian Leatherman 1997-6-12 5340 Orange East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. ca. 2 to 4 mi E of I-15 / Hwy 74 jtn. Stream. 46 Comment
  CAS-BOT-BC421794  Rumex conglomeratus John Thomas Howell 1927-6-17 2554 Orange Hills on north side of Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC421796  Rumex conglomeratus Carl B. Wolf 1932-6-13 3718 Orange Fullerton, Malvern & Nicholas Aves. 53 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
  RSA16974  Rumex hymenosepalus E. R. Johnson 1936-4-16 7768 Orange Santa Ana Canyon, Rancho Santa Ana, along the road near roundtop. 366 Comment
  RSA4501  Rumex hymenosepalus Carl B. Wolf 1932-3-15 2712 Orange 1 mi. W of Atwood, lower end of Santa Ana Canyon. 76 Comment
  RSA650638  Rumex hymenosepalus Daniel Truong 1991-5-13 32 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  POM47585  Rumex maritimus I. M. Johnston 1924-8-29 s.n. Orange 3 miles north of Balboa. Comment
  RSA610241  Rumex salicifolius Fred M. Roberts, Tony Bomkamp 1997-3-13 4984 Orange Rancho Mission Viejo: Christianitos Canyon near confluence of Gabino Canyon, 5.1km NE Clemente Survey Mark. 85 Comment
  RSA734984  Rumex salicifolius A. C. Sanders, T. B. Salvato 2008-5-13 35386 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR173934  Rumex salicifolius A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33054 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  HSC24264  Salicornia bigelovii James Henrickson 1970-9-5 5314 Orange 3.5 mi. NW of Huntington Beach, 0.25 mi. SE of Warner Ave. in Lower Littoral zone of Bolsa Chica Salt Marsh along outer Bolsa Bay. 0 Comment
  POM187513  Salicornia bigelovii P. A. Munz 1933-10-30 12996 Orange Seal Beach. Comment
  UC1179530  Salicornia bigelovii Peter H. Raven 1958-7-5 13561 Orange just n Surfside Comment
  SBBG47665  Salicornia pacifica R. N. Philbrick 1973-8-31 Orange Just E of University of California, Irvine, Botanic Garden marsh Comment
  UCSB59704  Salicornia pacifica Tilforth, C. 1975-9-6 Orange Northeast shoreline of Upper Bay, Newport Beach Comment
  JEPS73723  Salicornia subterminalis L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2046 Orange just s. Bolsa Chica State Park (Salt Marsh (s. end of Bolsa Bay)); Bolsa Bay Comment
  RSA232235  Salicornia virginica James Henrickson 1970-7-25 5036 Orange 3.5 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along PCH; at sea level. 0 Comment
  RSA478906  Salicornia virginica F. R. Fosberg 1931-8-19 7293 Orange Newport Bay. 0 Comment
  UC1136468  Salicornia virginica A. Lewis Apr 1934 388 Orange Celery Corona Quad. 0 Comment
  UC455214  Salicornia virginica I. J. Condit 1908-7-20 Orange Los Alamitos Comment
  UC7477  Salicornia virginica O. B. Byram 1901-9-10 2 Orange Westminster Comment
  RSA303450  Salicornia virginica J. R. Shevock 1970-10-19 519 Orange Newport Back Bay 5 Comment
  JEPS38488  Salix exigua Alice King Apr. 1908 Orange near Santa Ana; Santa Ana River Comment
  POM201876  Salix exigua L. M. Booth 1932-7-19 1281 Orange Bolsas Marsh. Comment
  RSA5307  Salix exigua B. D. Stark 1933-1-7 4510 Orange Rancho Santa Ana, river bottom below ranch houses. 122 Comment
  RSA698844  Salix exigua Mabel Harvey s.n. Orange Silverado Canyon Comment
  SBBG29066  Salix exigua var. hindsiana C. B. Wolf 1932-7-7 3845 Orange Bixby Ave, 1 km W of Hansen Rd, near town of Los Alamitos 8 Comment
  SBBG58935  Salix exigua var. hindsiana C. B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Cyn 120 Comment
  UC492353  Salix exigua var. hindsiana Carl B. Wolf 1932-4-15 2954 Orange near Santa Ana R. Rancho Santa Ana (along river s of pear orchard); Santa Ana Canyon 120 Comment
  UC492355  Salix exigua var. hindsiana Carl B. Wolf 1932-4-15 2953 Orange near Santa Ana R. Rancho Santa Ana (along river s of pear orchard); Santa Ana Canyon 120 Comment
  CAS-BOT-BC108131  Salix gooddingii L. R. Abrams 1901-6-1 1763 Orange Santa Ana River west of Santa Ana Comment
  HSC19941  Salix gooddingii J. W. Johnson 1961-3-29 Orange Newport Beach, S side of upper Newport Bay 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
  LA208654  Salix gooddingii LeRoy Abrams; 1903-4-16 3256 Orange Santa Ana River, near Orange Comment
  RSA137  Salix gooddingii J. T. Howell 1927-7-24 394 Orange Santa Ana River bottom near Rancho Santa Ana. 152 Comment
  RSA542354  Salix gooddingii Fred M. Roberts Jr., Gordon Marsh 1987-8-31 3603 Orange Santa Ana River: adjacent to Santa Ana, 0.5 km NE 17th St. bridge. 27 Comment
  RSA587881  Salix gooddingii Fred M. Roberts 1990-5-8 4618 Orange Chino Hills: Soquel Canyon, c.a. 1.2 km NNW Gilman Peak. Comment
  RSA603346  Salix gooddingii Scott D. White, B. Leatherman 1997-6-12 5324 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  UCR193026  Salix gooddingii A. C. Sanders, Fred M. Roberts 2008-6-17 35515 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA0030838  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange Rancho Santa Ana, near Sant Ana River, Sasnta Ana Canyon. 120 Comment
  RSA0034669  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-3-16 2715 Orange Rancho Santa Ana, Santa Ana River bottom. 121 Comment
  RSA0038336  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos. 7 Comment
  RSA0034815  Salix hindsiana var. parishiana Marcus E. Jones 1930-3-3 s.n. Orange Santa Ana Mountains. Comment
  LA208697  Salix laevigata Carl Hedin; Joseph Ewan 1932-7-9 7683 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  UC498104  Salix laevigata L. M. Booth Dec. 1932 1379 Orange near mouth of Santa Ana River (ca. 3/4 mi. from ocean) Comment
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Jul 30 2006
  IRVC8760  Salix lasiolepis Charles W. Sexton 1965-2-12 s.n. Orange Newport Beach. Southern Coastal Comment
  POM210857  Salix lasiolepis L. M. Booth 1932-12-31 1384 Orange Newport Bay. Comment
  RSA611261  Salix lasiolepis Louis C. Wheeler 1946-9-28 6379 Orange Newport Bay: 1/2 mile north of main coast highway. 2 Comment
  RSA700177  Salix lasiolepis R. H. McArthur 1934-2-8 s.n. Orange Santiago Creek at Bristol Comment
  RSA700179  Salix lasiolepis Minor Warne 1934-2-1 s.n. Orange Santa Ana River bed Comment
  UCR103156  Salix lasiolepis Scott D. White 1997-3-26 4817 Orange Univ. of Calif. Irvine Campus, east of main campus at site of proposed student recreation center, east of main campus, between California Avenue and Culver Drive. 40 Comment
  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
  RSA0048653  Salix lasiolepis G. Jentges 1932-2-6 s.n. Orange Wash near railroad track. Comment
  POM178870  Salix lucida subsp. lasiandra Marcus E. Jones 1930-1-26 s.n. Orange Wildwood Camp. Comment
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Nov 18 2013
  UC2061640  Salix lucida subsp. lasiandra R. E. Riefner Jr. 2009-11-9 09 -243 Orange City of Yorba Linda, Santa Ana Canyon, Santa Ana River bottom, E of Weir Canyon Road, between Horseshoe Bend and vicinity of La Palma Ave. and Mercado del Rio. Comment
  CAS-BOT-BC126306  Salix sessilifolia Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  RSA700934  Salix sessilifolia var. leucodendroides Keith E. Hoffmaster 1927-6-12 s.n. Orange Near Santa Ana Comment
  CDA5811  Salpichroa origanifolia Margaret Bellue Oct 1944 Orange Yorba Linda. 0 Comment
  CAS-BOT-BC176840  Salsola australis Ira L. Wiggins 1965-10-18 20271 Orange Vacant lot at corner of Chapman Street and Victor Drive, Fullerton Comment
  CAS-BOT-BC176841  Salsola australis Ira L. Wiggins 1965-10-27 20306 Orange Along Brea Canyon Road just SW of Los Angeles County Line 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
  UCR199271  Salsola australis R. E. Riefner Jr. 2006-11-14 06- 672 Orange South Coast, Irvine, along San Diego Creek at Campus Avenue and University Drive 4 Comment
  RSA696279  Salsola kali var. tenuifolia Keith E. Hoffmaster 1927-5-30 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC176978  Salsola tragus Peter H. Raven 1957-9-28 11381 Orange At north limits of Surfside Comment
  RSA269  Salsola tragus J. T. Howell 1927-6-6 44 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCLA55660  Salvia C. Epling and H. Lewis 1940-4-21 Orange 6 mi e San Juan Capistrano Comment
  RSA542480  Salvia apiana Fred M. Roberts, G. A. Marsh, K. G. Marsh 1988-4-26 3941 Orange San Joaquin Hills: Pelican Hill, 0.5km SE summit. 165 Comment
  RSA751323  Salvia apiana A. C. Sanders, Fred M. Roberts, Amber O Neal 2008-5-9 35292 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCR188932  Salvia clevelandii Robert DeRuff 2005-5-25 556 Orange Newport Beach, Upper Newport Bay, draw on bluff south of the Interpretive Center near end of Del Mare Avenue 20 Comment
  RSA1566  Salvia leucophylla J. T. Howell 1928-7-10 1095 Orange Black Star Canyon, Santa Ana Mts. 457 Comment
  RSA651802  Salvia leucophylla Shlomo Gat 1959-5-12 34 Orange Carbon Canyon. Comment
  RSA653189  Salvia leucophylla David Barrios 1991-5-8 22 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 366 Comment
  SD43536  Salvia leucophylla Carl B. Wolf 1943-6-8 11449 Orange Rancho Santa Ana Botanic Garden; on dry brushy hillside. 198 Comment
  CAS-BOT-BC233669  Salvia leucophylla C. B. Wolf 1943-6-8 11449 Orange Rancho Santa Ana Botanic Garden 198 Comment
  HSC14361  Salvia mellifera C. L. Hitchcock, C. V. Muhlick 1964-3-17 23066 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  RSA434146  Salvia mellifera Albert J. Perkins 1912-4-27 s.n. Orange Eastern end, Aliso Canyon. Comment
  UCR106308  Salvia mellifera B. G. Pitzer, M. Georgiady 1997-4-5 3098 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
  UCR209372  Salvia mellifera Fred M. Roberts, Linda Farley 2008-3-28 6818 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
  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
  RSA434083  Salvia spathacea Unspecified 1920-6-2 s.n. Orange Laguna. Comment
  RSA724121  Salvinia molesta Richard E. Riefner 2005-9-30 5 -700 Orange City of Huntington Beach, Huntington Central Park at Goldenwest St. 1 Comment
  CSUSB687  Sambucus cerulea Nancy Robb 1966-4-15 Orange 4 miles southeast of Yorba Linda, 500 yards off Santa Ana Canyon Road. 121 Comment
  IRVC336  Sambucus mexicana McGuire 1965-5-5 Orange Santiago Canyon, Tucker Wildlife Sanctuary]. Santa Ana Mountains Comment
  IRVC337  Sambucus mexicana H. R. Williams 1966-6-21 611 Orange San Diego Creek at Sand Canyon Road; roadside near cultivated field. Irvine Comment
  UC1125331  Sambucus mexicana A. Lewis May 1934 421 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle 1341 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
  UCR159777  Sambucus mexicana Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; along marsh road 6 Comment
  UCR193789  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-7-3 35691 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  UC537262  Samolus parviflorus Lawrence M. Booth 1932-7-19 1284 Orange Bolsas Marsh Comment
  RSA69001  Samolus parviflorus F. W. Peirson 1924-10-19 s.n. Orange Wintersberg Comment
  IRVC29096  Sanicula arguta Fred M. Roberts 1989-3-17 4211 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA590944  Sanicula arguta Fred M. Roberts 1991-5-2 4783 Orange San Joaqui Hills, Laguna Canyon, Laguna Laurel, Just W of Laguna Canyon Road, 2km N jct El Toro Road, 4.5km E Signal Peak. 110 Comment
  RSA761933  Sanicula arguta Robt. Allen 2005-4-30 12506 Orange Caspers Wilderness Park, East Ridge Trail. 175 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
  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
  HSC66534  Sanicula graveolens Christopher Davidson 1977-5-18 5606 Orange Santa Ana Mts. Cleveland Nat. Forest. Santiago Peak (on Orange-Riverside Co. line). 1707 Comment
  RSA637488  Sanicula tuberosa Valerie L. Soza, LeRoy Gross 1999-6-10 511 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off Main Divide Road. 1524 Comment
  RSA609760  Sarcocornia pacifica L. C. Wheeler 1946-9-28 6384 Orange Newport Bay. 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
  UCR47863  Satureja chandleri David Charlton 1987-5-4 s.n. Orange Santa Ana Mtns., Chiquito Basin, Trail from Blue Jay Campground to Chiquito Falls 762 Comment
  RSA749467  Saxifraga californica Fred M. Roberts 1999-4-22 5187 Orange Lomas de Santiago: tributary to Santiago Creek wash along spur road on ridge between Limestone Cyn. and Santiago Creek wash opposite Williams Cyn., 1.8 km SE Silverado Sch. and 2.3 km NNW Bolero Lookout. 396 Comment
  SD253898  Schinus molle Jim Riley 2013-12-10 137 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  UCR43573  Schinus terebinthifolius B. A. Prigge 1983-12-17 5520 Orange Santa Ana Marsh and adjacent lowlands. SE-most part of oil field just north of Pacific Coast Hwy between remnant Santa Ana River channel and dirt road 2 Comment
  IRVC20382  Schismus barbatus Fred M. Roberts 1983-3-16 910 Orange Laguna Beach: Sycamore Hills, central ridge, 1.1km NNE jct. El Toro and Laguna Canyon Rds.; 5.4km [ESE] Signal Peak. Southern Coastal 156 Comment
  RSA0013909  Schismus barbatus Fred M. Roberts 2012-4-24 7524 Orange San Joaquin Hills: Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  RSA0089220  Schismus barbatus Fred M. Roberts 2014-4-21 7862 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  CAS-BOT-BC111387  Schoenoplectus acutus var. occidentalis John Thomas Howell 1927-7-3 2655 Orange Wet place along road near Horseshoe Bend, Santa Ana River bottom, Santa Ana Canyon 152 Comment
  UCR247918  Schoenoplectus americanus Fred M. Roberts 2012-7-18 7673 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
  RSA92  Schoenoplectus americanus J. T. Howell 1927-7-19 444 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  POM1390  Schoenoplectus californicus D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  RSA234484  Schoenoplectus californicus James Henrickson 1970-7-25 5070 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March 0 Comment
  UCR157695  Schoenoplectus californicus Adrian Wolf 1998-5-15 268 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  RSA0071942  Schoenoplectus californicus CNPS Accuracy Assessment Team 2014-5-9 9346 Orange Loma Ridge West. Comment
  JEPS75309  Scirpus americanus L. M. Booth 1932-5-24 1103 Orange Newport Bay Comment
  RSA647958  Scrophularia californica Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 25 Orange 1/2 mile south of Chino Hills State Park. 168 Comment
  UCR102628  Scrophularia californica B. G. Pitzer 1997-4-15 3148 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  RSA788820  Scrophularia californica subsp. floribunda Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49805 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  CAS-BOT-BC240064  Secale cereale Helen D. Geis 1902-3-1 s.n. Orange Foothills Santa Ana Comment
  RSA15  Selaginella bigelovii John Thomas Howell 1927-7-24 473 Orange Claymine Canyon, near Sierra Peak 167 Comment
  CAS-BOT-BC363477  Senecio californicus Helen D. Geis 1902-1-1 537 Orange Santa Ana Comment
  POM272076  Senecio californicus Lyman Benson 1932-3-26 3199 Orange Dana Point. 60 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
  CAS-BOT-BC333067  Senecio flaccidus var. douglasii James R. Shevock 1976-10-28 5357 Orange Along FS road 3S04 about Bedford Peak, Santa Ana Mountains, Cleveland National Forest 1097 Comment
  LA203927  Senecio flaccidus var. douglasii W. E. Pequegnat; 1937-8-25 sn Orange Santa Ana Mountains, near Hyla (?) Stream Comment
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Jan 26 2015
  RSA641384  Senecio linearifolius Scott D. White 1998-6-26 6783 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  SBBG132983  Senecio linearifolius S. D. White, M. Honer 2004-5-17 10401 Orange ridges and open slopes directly N of intersection of Crown Valley Parkway and Pacific Island Dr; City of Laguna Niguel 61 Comment
  SBBG122031  Senecio linearifolius S. D. White 2003-7-7 9613 Orange W of intersection of Shady Cyn Crk with Bonita Cyn Drive, UC Irvine Campus 70 Comment
  UC1928639  Senecio linearifolius var. linearifolius Scott D. White 2003-7-7 9613 Orange Coastal plain: Irvine. UC Irvine Campus. Directly west of T-intersection of Shady Canyon Cr. w/Bonita Canyon Dr. (= Culver Dr.). Comment
  UCR204762  Senecio linearifolius var. linearifolius Scott D. White 2003-7-7 9613 Orange Coastal Plain, Irvine, UC Irvine Campus. Directly west of T-intersection of Shady Canyon Creek with Bonita Canyon Dr. (= Culver Drive) 70 Comment
  CAS-BOT-BC364600  Senecio vulgaris Ira L. Wiggins 1966-2-25 20478 Orange Firestone Boy Scout Reservation E of Brea Comment
  RSA734612  Senecio vulgaris Keith E. Hoffmaster 328 Orange Santa Ana Comment
  RSA734811  Senecio vulgaris A. C. Sanders, Fred M. Roberts 2008-3-25 34578 Orange Saddle on ridge near head of Weir Canyonm, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  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
  RSA650816  Senecio vulgaris Daniel Truong 1991-5-5 7 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area'. Comment
  UCR266664  Senna marilandica Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7080 Orange YORBA LINDA: Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave 113 Comment
  CDA23618  Sesuvium verrucosum L. D. Lyons, Mark A. Elvin 2006-9-23 427 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
  UCSB52902  Sesuvium verrucosum Roberts, Fred 1983-9-29 Orange Irvine; San Joaquin Freshwater Marsh, 1.6 km. NNW UCI campus center 2 Comment
  UCR236679  Setaria parviflora Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7101 Orange Peninsular Ranges, Santa Ana River Canyon: Yorba Linda Regional Park adjacent to Santa Ana River, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river 87 Comment
  RSA788922  Sidalcea malviflora subsp. malviflora Fred M. Roberts 1999-6-23 5244 Orange Peninsular Range, Santa Ana Mtns. Region: Lomas de Santiago: tributary to Santiago Creek, ridge between Limestone Cyn, and Santiago Creek wash across from Pancho Canyon, 1.6 km ENE Bolero Spr. and 1.6 km NNW Bolero Lookout. 396 Comment
  UC1013072  Sidalcea neomexicana C. L. Hitchcock 1952-5-30 19547 Orange about 11 mi e Long Beach (about 100 yards n of Katella Ave to w of Hanson St.); e of Long Beach Comment
  CAS-BOT-BC384499  Silene antirrhina Helen D. Geis 1902-1-1 522 Orange Santiago Canon [Canyon] Comment
  CAS-BOT-BC384500  Silene antirrhina Helen D. Geis 1902-3-1 s.n. Orange Santiago Creek Comment
  UCR103160  Silene gallica Scott D. White 1997-3-26 4824 Orange Univ. of Calif. Irvine Campus, east of main campus at site of proposed student recreation center, east of main campus, between California Avenue and Culver Drive. 40 Comment
  SEINET11944367  Silene gallica Unknown 1933-1 8188 Orange La Guna Beach Comment
  RSA704077  Silene laciniata D. E. Bramlet 2004-5-27 3595 Orange Donna O Neill Reserve. Southwest corner of the reserve, just east of the Telaga development. The site is 1.43km west of Cristianitos Rd. and 1.37km north of Pico. 183 Comment
  IRVC20496  Silene laciniata subsp. major Fred M. Roberts 1983-5-4 1026 Orange Temple Hill, Upper Rancho Laguna Canyon, 1.7km SSW Top of the World Sch.; 1.4km ENE Cactus Point, Laguna Beach 200 Comment
  RSA175135  Silene laciniata subsp. major R. F. Thorne 1963-7-26 32842 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Santa Ana Mountains, Cleveland National Forest. 762 Comment
  RSA439886  Silene laciniata subsp. major M. B. Dunkle 1933-5-30 3571 Orange Carbon Canyon Comment
  RSA581444  Silene laciniata subsp. major Fred M. Roberts 1989-5-12 4363 Orange Santa Ana Mountains: Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.2 kilometers WSW Laurel Springs. 455 Comment
  IRVC7928  Silene multinervia A. S. Boughey 1968-4-23 208 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  SEINET219313  Silene verecunda P. C. Everett 1935-6-18 Orange Santa Ana Mountains summit of Santiago Peak. 1731 Comment
  UCR150906  Silene verecunda subsp. platyota Valerie Soza, LeRoy Gross 1999-6-10 514 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1524 Comment
  RSA653177  Silybum marianum David Barrios 1991-5-8 32 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  SEINET7882519 Image available Silybum marianum Jean Coulson 1959-1 s.n. Orange Santa Anna Mts.; 2.1 mi. E. on Esperanz Road from Orangethorpe. On S. side of road. Comment
  RSA16981  Sinapis arvensis Percy C. Everett 1936-3-20 s.n. Orange Rancho Santa Ana Botanic Garden, Santa Ana Canyon. West of Adm. Bldg. 198 Comment
  RSA4794  Sinapis arvensis James Snow s.n. Orange Bryant Ranch, near Long Beach, Calif. South East 1/4 Section 27, Township 4 S, Range 11 W Station #3. Plant. 2. Comment
  UC1929781  Sinapis arvensis Scott D. White, Amanda Duchardt 2003-3-27 8849 Orange SANTA ANA MOUNTAIN FOOTHILLS: Canyon bottom and west facing slopes above Canada Gobernadora. Comment
  IRVC1168  Sisymbrium altissimum L. Lewton 1965-3-22 Orange [Newport] Back Bay Newport Beach Comment
  IRVC1169  Sisymbrium altissimum T. Baskin 1965-4-9 Orange Corona del Mar High School. Newport Beach 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
  IRVC1178  Sisymbrium irio C. Duncan 1965-4-3 Orange Newport Beach Comment
  CAS-BOT-BC75235  Sisymbrium irio Ira L. Wiggins 1965-10-7 20363 Orange Vacant lot between State College Boulevard and Troy High School campus, Fullerton. Comment
  RSA789587  Sisymbrium officinale R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49659 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA366972  Sisyrinchium bellum R. D. Harwood 1920-4-24 3451 Orange Santa Ana Mountains, Sierra Canyon. 366 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
  OBI2801  Sisyrinchium bellum T. Mills 1967-4-30 56 Orange Irvine Park 213 Comment
  IRVC18594  Sitanion jubatum Karlin G. Marsh 1980-8-13 s.nn. Orange S of Trabuco Canyon, Sect. 12, Hinricks Parcel. Santa Ana Mountains Comment
  IRVC27502  Solanum americanum Mark A. Elvin 2004-5-2 3415 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 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
  UCSB48043  Solanum americanum Roberts, Fred 1981-9-26 Orange Newport Beach: Pacific Coast Highway, 0.3km W Newport Blvd.; 0.4km SE Bench Mark 10 3 Comment
  RSA232216  Solanum douglasii James Henrickson 1970-7-24 4998 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  UC12096  Solanum douglasii Lawrence M. Booth 1932-5-19 1075 Orange Newport Bay Comment
  UCR173402  Solanum douglasii Abby Sirulnik 2000-4-11 61 Orange South Coast, Crystal Cove State Park, near Los Trancos Canyon and Pelican Hill 152 Comment
  UCR66993  Solanum douglasii A. C. Sanders 1990-10-6 10198 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  RSA0045320  Solanum douglasii G. Jentges 1932-4-30 68 Orange Wash near railroad track. Comment
  SDSU11166  Solanum douglasii R. M. Beauchamp 1968-2-17 774 Orange On slope on west side of El Toro Road, 7 miles east of Interstate 5. Comment
  RSA733737  Solanum elaeagnifolium Unspecified s.n. Orange Costa Mesa. Comment
  UCR237801  Solanum esculentum Mark A. Elvin, Peter A. Bowler 2004-6-5 s.n. Orange South Coast, buffer zone of San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  SD43527  Solanum rostratum E. Johnson 1946-8-22 11531 Orange sandy river bottom, Rancho Santa Ana, Santa Ana Canyon 399 Comment
  RSA38195  Solanum rostratum Ed Johnson 1946-8-22 11531 Orange sandy river bottom, Rancho Santa Ana, Santa Ana River Canyon 122 Comment
  RSA39342  Solanum rostratum E. L. Paddock 1943-7-2 12739 Orange Near Dana Point. Comment
  CAS-BOT-BC156480  Solanum umbelliferum J. T. Howell 1927-7-24 2822 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  RSA427454  Solanum umbelliferum M. B. Dunkle 1933-5-30 3576 Orange Santa Ana Canyon Comment
  RSA5320  Solanum umbelliferum B. D. Stark 1932-12-30 4475 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 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
  RSA682759  Solanum umbelliferum Scott D. White, Amanda Duchardt 2003-3-27 8853 Orange Santa Ana Mountain Foothills: Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA0039365  Solanum virginianum Justin M. Wood 2013-9-5 5120 Orange Santa Ana Canyon: Between the Santa Ana River and the Green River Golf Course, in a recently planted restoration area. Roughly 0.5 miles west of the Riverside County Line. 127 Comment
  NY820525  Solanum xanti F. M. Reed 1928-2-10 5712 Orange Arch Beach 46 Comment
  UCR241065  Solanum xanti Dick Newell, Don Millar 2013-3-5 317 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Ridge Rd., 1/4 mi. east of Limestone Canyon Rd. 402 Comment
  RSA791806  Soleirolia soleirolii R. E. Riefner Jr. 2011-7-1 11 -84 Orange City of Newport Beach, beach area west of the end of Cameo Shores Road; south ca. 1.5 miles from Poppy Ave. 2 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
  RSA788807  Solidago californica R. F. Thorne 1977-11-21 49980 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  RSA0051386  Solidago californica Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49600 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  UCR250137  Solidago velutina subsp. californica Dick Newell, Judy Booth 2013-11-17 342 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, 1.5 mil. NE of Maple Springs gate 701 Comment
  UCR191214  Sonchus asper A. C. Sanders 2008-4-29 35146 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  JEPS88920  Sonchus oleraceus Rimo Bacigalupi, and L. Heckard, P. C. Hutchison 1962-3-16 8231 Orange 2 mi n Doheny Beach State Park (along U.S. 101) Comment
  UCR237816  Sonchus oleraceus Mark A. Elvin 2003-2-2 2290 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCD136209  Sonchus oleraceus Ira L. Wiggins 1965-11-6 20334 Orange west side of Atwood. Comment
  IRVC14875  Sorghum bicolor Gordon A. Marsh, Karlin G. Marsh 1976-7-8 s.n. Orange Santa Ana Mtns: Lower San Juan Picnic Grounds near Hwy 74 [Ortega Hwy]. Peninsular Ranges Comment
  UCR236673  Sorghum bicolor Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7107 Orange Peninsular Ranges, Santa Ana River Canyon: Santa Ana River adjacent to Yorba Linda Regional Park, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river 84 Comment
  RSA733937  Sparganium eurycarpum R. H. McArthur 1934-5-17 s.n. Orange 0.5 mi east Greenville. Comment
  HSC24440  Spartina foliosa Christopher Davidson 1970-7-27 1505 Orange Bolsa Chica salt marsh, 1 mi. S of Warner Ave., opposite Seal Beach 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
  RSA658212  Spartium junceum T. A. Daubert 1991-5-19 647 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  UCR181661  Spergularia B. G. Pitzer 1996-4-30 2784 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  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
  RSA0097838  Spergularia macrotheca F. W. Peirson 1923-3-26 4289 Orange Canada Salada. 0 Comment
  UCR103161  Spergularia macrotheca var. macrotheca Scott D. White 1997-3-26 4821 Orange Univ. of Calif. Irvine Campus, east of main campus at site of proposed student recreation center, east of main campus, between California Avenue and Culver Drive. 40 Comment
  RSA0098514  Spergularia marina Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1122 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UCR85725  Spergularia marina Scott D. White 1993-4-28 1279 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  RSA0098516  Spergularia marina Elroy Robinson 1936-6-26 s.n. Orange El Torro, along Santa Fe Railway. Comment
  RSA0097293  Spergularia salina Keith E. Hoffmaster 1935-2-17 842 Orange Prob[ably] near Costa Mesa, at bluff by Santa Ana River. Comment
  PASA1277  Spergularia tenuis Joseph Andorfer Ewan 1931-7-31 Orange Smeltzer Comment
  RSA0098710  Spergularia villosa L. M. Booth 1932-5-24 1089 Orange Near Bay Shore Camp, Newport Bay. Comment
  UCR186140  Sphaeralcea emoryi O. F. Clarke, D. Svehla 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  UCD116727  Sphaeralcea emoryi var. emoryi Ronni Stachelek; Bob Anderson, Frances Schroshire 1995-3-1 40 Orange Upper Newport Bay on Back Bay Dr. approx. 1/2 mi. N. of Shellmaker Island. Comment
  IRVC26743  Spiloxene ovata Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3161 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC26698  Spiloxene serrata Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3175 Orange UCI Arboretum Southern Coastal 15 Comment
  SBBG119215  Sporobolus indicus R. E. Riefner 2004-12-12 04 -553 Orange Jeffrey Rd near Irvine Center Drive, City of Irvine 36 Comment
  RSA0026253  Stachys rigida subsp. rigida Fred M. Roberts 2013-6-12 7797 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
  RSA681  Stachys rigida subsp. rigida J. T. Howell 1927-7-3 261 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA0127596  Stachys rigida var. quercetorum Fred M. Roberts 2016-3-17 8026 Orange San Joaquin Hills: City of Irvine, west slope, Bommer Canyon along Turtle Ridge Trail, 0.8 km NE Signal Peak and 0.9 km SW Cattle Camp. 265 Comment
  UCR247897  Stachys rigida var. rigida Fred M. Roberts 2013-6-12 7797 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 km ENE Silverado School and 1.4 km up stream Black Star Road crossing. 320 Comment
  UCR247899  Stachys rigida var. rigida Fred M. Roberts 2013-6-12 7795 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 km ENE Silverado School and 1.4 km up stream Black Star Road crossing. 320 Comment
  SBBG40460  Stebbinsoseris heterocarpa J. Ingram 1960-3-29 261 Orange 3 mi above O'Neill Park, Trabuco Cyn Comment
  OBI5678  Stellaria media Carl B. Wolf 1931-3-6 1854 Orange Trabuco camp ground, Trabuco cyn, W slope of the Santa Ana Mts 610 Comment
  RSA0119681  Stellaria media Fred M. Roberts 2015-3-10 7924 Orange San Joaquin Hills: Niguel Hill, on ridge above Aliso Canyon ear end of Ceanothus Drive (Hangover House property), 0.4 km WNW summit Aliso Peak. 122 Comment
  RSA627784  Stellaria media Scott D. White 1998-4-9 6266 Orange University of Calif. Irvine Campus; Drainage channel west of Medical Center, west of main campus circle. 15 Comment
  RSA743497  Stellaria media Fred M. Roberts 2008-3-19 6780 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  RSA184167  Stellaria media I. L. Wiggins 1966-3-1 20484 Orange Orange grove at corner of South Campus Dr. and State College Blvd. Fullerton Comment
  RSA773509  Stellaria nitens Fred M. Roberts 1999-4-26 5200 Orange Lomas de Santiago: Lomas Ridge, ridge between Limestone Canyon and Santiago Canyon Wash, 1.7 km SE Silverado School, and 2.4 km N Bolero Lookout 411 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
  RSA683237  Stenotaphrum secundatum Scott D. White, Matt Carlton 2003-11-20 9867 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (San Juan Capistrano). 24 Comment
  JEPS36878  Stephanomeria diegensis L. M. Booth 1933-10-18 Orange Newport Comment
  UCR80004  Stephanomeria diegensis Scott D. White 1992-10-20 969 Orange Vicinity of city of Brea, Immediately north of Carbon Canyon Rd & east of Placentia Avenue +-1mi (air) SSEof Tonner Canyon. 183 Comment
  UC1394144  Stephanomeria diegensis L. D. Gottlieb 1968-8-14 6860 Orange immediately w Lower San Juan Campground (on Route 74) 411 Comment
  JEPS36892  Stephanomeria exigua subsp. coronaria L. M. Booth 1933-10-18 Orange Newport Comment
  RSA232227  Stephanomeria exigua subsp. coronaria James Henrickson 1970-7-25 5044 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
  UCR197706  Stephanomeria exigua subsp. deanei A. C. Sanders, Fred M. Roberts 2008-9-18 36083 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  CAS-BOT-BC375867  Stephanomeria virgata H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach 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
  UCR37802  Stipa lepida Steve Boyd 1981-5-13 s.n. Orange South Coast, Pelican Hill, Irvine Ranch Property, San Joaquin Hills south of Corona del Mar 218 Comment
  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
  POM6313  Stuckenia pectinata L. T. Street, Williams 1919-5-4 2690 Orange Laguna Lakes. [now Big Laguna Lake, San Diego Co.] Comment
  RSA683168  Stylocline gnaphaloides Scott D. White, Amanda Duchardt 2003-4-10 9019 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  RSA957  Stylocline gnaphaloides J. T. Howell 1928-4-15 917 Orange near east bundary of Rancho Santa Ana 213 Comment
  UCSB48120  Stylocline gnaphaloides Fritzke, S.; Roberts, Jr., Fred 1982-4-3 Orange Rancho Mission Viejo; Calif. 74, 7.2 km. by road E San Juan Capistrano; 1.3 km. NE Viejo Survey Marker 98 Comment
  CAS-BOT-BC422882  Stylomecon heterophylla P. A. Munz 1918-5-4 2171 Orange Laguna Beach Region. Laguna Canon [Canyon] Comment
  JEPS32500  Styrax officinalis var. redivivus Frank W. Peirson 1923-5-5 3493 Orange n side Trabuco Canyon; Santa Ana Mts., n side of Trabuco Canyon 640 Comment
  CAS-BOT-BC48095  Styrax redivivus Frank W. Peirson 1923-5-5 3493 Orange Trabuco Canyon, Santa Ana Mts. - Near canyon bottom in shade. Comment
  RSA124719  Styrax redivivus E. K. Balls, Percy C. Everett 1957-11-25 3250 Orange Upper Trabuco Canyon, 2.2 mi. ne. from entrance to Holy Jim Canyon, 991 Comment